Residents
Our multifaceted support system is the most consistent strength identified by our residents in their exit interviews. We seek to provide practical support, including educational, financial and patient care resources. Our carefully designed support creates a foundation for community between the residents and faculty. This is achieved through a two-week orientation; Winter and Summer retreats; group Bible studies in faculty homes, residents and/or their spouses; intentional mentoring and faculty/behavioral advisory relationships. In addition to practical and structural support, In His Image desires that each resident be provided excellent personal support. Through mentoring, counseling and marriage support, our residents are provided assistance in balancing their personal and professional commitments. Our residents enjoy spending time with each other. They are committed to solid family medicine training and are eager to explore what it means to be a physician with a global health perspective. The residents work as a team in an encouraging atmosphere. Though their training is rigorous, schedules ensure time for family, personal spiritual growth and recreation."This should be the toughest three years of your medical training, and you will want to do that in an environment where you are cared for as a person and can grow in your faith.” Dr Ashley Hildebrand, MD, IHI Alum
PGY3
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Isaac Adams, MD
I grew up amongst the almond orchards of California’s central valley, spent my teenage years serving missionally with my family on Les Iles de la Madeleine, in Quebec, Canada, and then settled down in Vermont’s Green Mountains where I attended medical school at the University of Vermont. At age 19, God powerfully turned my heart from materialism, giving me instead a burning passion to make his great name known to those who have yet to hear, using medicine to show Christ’s love to the broken and hopeless. I am thrilled to join the In His Image team for the family medicine and spiritual training that will become the foundation for my life’s pursuit of God. In my free time, I can be found running ultras, rock climbing, tinkering on old cars, grilling a rack of ribs, or hanging out with friends and family.
University of Vermont Waterbury, VT -
Sarah Bankhead, MD
I grew up in Madisonville, Texas, which has given me a heart for rural and underserved medicine. I completed undergraduate studies at Texas A&M University. I attended medical school at St. George’s University on the island of Grenada but spent my first year of studies in Newcastle, England, before moving to the island and then lived in Brooklyn, NY where I completed most of my clinical rotations. My experiences have given me the desire to serve those in limited resource settings at home and abroad through gospel-driven medicine. God has graciously carried me through my medical journey thus far, and I am grateful to be a part of the IHI community and to see how God will continue to lead and teach. You will likely find me soaking up the sunshine, listening to theological podcasts, face timing my family, or snacking on dark chocolate.
St. George's University Grenada -
Michael Estrada, DO
I grew up in San Antonio, Texas then attended Oral Roberts University for undergraduate studies where I met my wife in our first biology class. I went on to attend Medical School at Arkansas College of Osteopathic Medicine in Fort Smith, Arkansas while my wife, Sarah, cared for our two children, David and Emma along with our two fur babies, Nobel and Elliot. I am a true family man and love spending time with my wife and kids. I enjoy playing video games with my son and having movie nights. I am also a die hard Cowboys fan! How bout them Cowboys! Most importantly, I am so thankful I have the opportunity to serve the Lord through medicine at home and the missions field with my family by my side.
ARCOM Fort Smith, AR -
Sheeba George, MD
I was born in India but spent most of my childhood in Saudi Arabia and it was there where I came to know the Lord. My father sowed the seed of missions in my heart as he served as an evangelist among the migrant workers and my mother inspired me to pursue medicine as she was a nurse. I attended medical school in St. Lucia and completed my rotations in Atlanta, GA. Soon after, I met my loving husband, Charles, and we moved to Lakeland, FL, where we are serving the Lord in the local medical missions and helping with the children’s ministry. In every step of my journey, I see God’s hand working in my life. We are so grateful to join the IHI family and it is our sincere prayer that we become excellent instruments in our Master’s hand. My interests include traveling, short term missions, trying new cuisines, and spending time with family and friends.
Amer. Int'l Med. St. Lucia -
Micah Gerakinis, DO
If you point to the head of the fifth metacarpal bone on the palmar side of your right hand, that's where I’m from in Michigan! I attended undergraduate at Grace College in Indiana and medical school at Michigan State University. These past few years my love for Jesus has grown as I’ve seen more of his gentle heart for me and others. I’m thrilled to join the IHI family! I enjoy visiting baseball stadiums, playing Settlers of Catan, and eating peanut butter.
Michigan State Allendale Ch. Township, MI -
Jeremiah Hadwen, MD
I grew up in Ottawa, Canada and I did my post-secondary training in Ottawa. I graduated with a combined MD/PhD degree from the University of Ottawa in 2019. I have been married for almost 10 years and my wife Anna and I have 5 daughters – our eldest is 9 years old and our youngest is 4 months old. We moved to Tulsa in January 2024 to train with In His Image. Anna and I are passionate about physical and spiritual wellness, and we seek to use my work as a doctor to reach people with the gospel of Jesus. We enjoy outdoor activities, sports, and spending time as a family visiting new places.
University of Ottawa Ottawa, Canada -
Sandra Hershberger, DO
I am Mexican-Bolivian-American, born in Mexico City, and raised in northern Virginia where I completed my undergraduate degree at George Mason University. I attended medical school at Liberty University College of Osteopathic Medicine where I developed interests in full-scope Family Medicine, behavioral health, obstetrics, and osteopathic manipulative medicine. Now, I rejoice and praise the Lord for leading me to In His Image for residency! I am excited to join such an incredible family that shares my heart for medical missions. After residency, my desire is to serve long- term on the mission field overseas, offering hope for physical healing as well as spiritual healing through the gospel of Jesus Christ.Inmyfreetime,Ienjoygamenights,soccerjuggling, exploring new places with friends, and taekwondo-- ki-ya!
Liberty Univ. Lynchburg, VA -
Wesley Hostetler, DO
I grew up in a small town in southwest Alabama and after that I moved off to college at Troy University. Troy was hugely formative in my life because of the people God surrounded me with. It wasn't until I was a sophomore in college that the Lord was able to break through my heart with the gospel and I was saved. Simultaneously, the Lord laid a burden on my heart for the lost that have never even heard about Jesus or the good news of his death, resurrection and defeat of sin. After Troy, I moved a little farther north into Alabama, to VCOM Auburn for medical school, which is where I met my sweet wife, Katie. Together we enjoy road tripping out west, hiking and camping with our 2-year- old golden retriever aptly named Camper, canoeing, and all things outside. My wife Katie and I are so excited to be a part of IHI!
Edward Via - Auburn Troy, AL -
Brett Seeley-Hacker, MD
How wonderful that God has placed us at IHI! My wife, Carly, and I both moved around a bit growing up. For my part, I’ve called Washington, New Jersey, New Hampshire, Virginia, New York, Thailand, and Italy home over the years. Living as a Catholic family in Rome was especially fantastic! My parents raised me in the Church, and it was around 15 years of age that I started to make the faith my own. Since then, it has been a joy to fall deeper in love with Jesus all through college and medical school. As you might expect, I’m a fan of traveling, but I also enjoy making music, baking homemade breads, gardening, exploring the outdoors, playing board games, and studying philosophy/theology. Life with the Lord has been a wonderful adventure thus far, so here’s to all that God has in store for us in Tulsa!”
Columbia University New York, NY -
Ashley Swan, MD
I am originally from a tiny town in Missouri, but have lived in various places, including Florida, Tennessee, Texas, the Carolinas, California, and now Oklahoma. I am honored to have graduated from Loma Linda School of Medicine. Outside of medicine, I enjoy playing board games, exercising, singing and playing instruments, studying the Bible, reading, and spending time with family and friends. My purpose in life is to become more like Jesus and to serve others. It is my prayer that God will be the center of my life during residency and beyond!
Loma Linda Univ Loma Linda, CA
PGY2
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Robbie Crane, MD
I was born and raised in Colorado Springs before attending Grove City College (in Pennsylvania) and West Virginia University School of Medicine. Interested in Global Health, I visited the Global Missions Health Conference and met In His Image! With a long weekend you'll find me out backpacking or visiting a new national park. During the week I enjoy running, Frisbee, soccer, and cooking food alongside my pet turtle.
West Virginia University Charleston, WV -
Abigail Dibert, DO
My journey started in Maryland, where I was raised in a Christian family and first committed my life in service to Christ. On a mission trip during my senior year of college, I received a calling to follow God into medical missions. Medical school experiences at Campbell University in North Carolina confirmed my calling into mission-centered, broad scope primary care while cultivating interests in osteopathic manipulative medicine and obstetrics. I am honored to join a program that recognizes the value of incorporating faith in medicine to address the medical and spiritual needs of patients. Outside of medicine, I enjoy hiking, photographing nature, and listening to audiobooks.
Campbell University Lillington, NC -
Lance Hofer-Draper, MD
I am originally from Colorado, but finished high school in Tennessee, and went to California for undergrad and medical school. The Christian education I received at Weimar College and Loma Linda University fostered my love to serve those less fortunate than myself. Lord willing, I plan to use the training I receive as a physician to share His love with people in the U.S. and abroad. Incorporating lifestyle medicine treatments into my practice is something I am also passionate about, and would like to incorporate as I build long-lasting relationships with my patients.
Loma Linda Loma Linda, CA -
Krystel Martin, MD
My husband, Ekiti, and I were born and raised in Cameroon. We grew up in Christian homes but individually accepted the Lord Jesus Christ as our Savior at some point in medical school. We are blessed with three wonderful kids: Carmichael, Jedidah, and Jacob. Since graduating from medical school, we have been involved in several faith based medical missions in underserved areas in Cameroon offering free primary care and reaching out to the souls of men. We count it a privilege and are so grateful for this opportunity to train at IHI. It is my desire to merge my faith and profession by serving God through a faith-based approach to practicing medicine. In my spare time, I enjoy spending time in fellowship with God, my family, and loved ones. I also love singing and listening to music.
Université de Yaoundé. Camerron -
Madison McLain, MD
I grew up in Amarillo, Texas and then attended Colorado Christian University for undergraduate studies and to play soccer. From there I made my way back home to Texas for medical school at Texas Tech University. The Lord has been faithful in every step of this journey including this next step of joining the team at IHI! I am so excited to join In His Image and look forward to continuing to learn how to do medicine unto His glory. In my free time I enjoy trail + road running, backpacking, anything outdoors, supporting local coffee shops, and game nights with friends and family.
Texas Tech University Lubbock, TX -
Addison Nakashima, DO
I was born and raised in Claremore, Oklahoma, where I later attended Rogers State University. While I was in college, I met my husband, Chris, and started a campus ministry for young adults with a focus on missions work in Costa Rica. I attended medical school at Oklahoma State University, where I acquired my masters degrees in global health and healthcare administration, and worked in the global medicine department organizing medical missions trips for medical students. I have had the experiences of traveling the world and providing medical care to rural and underserved communities both in Oklahoma and abroad, which is where I am truly happiest. My hobbies include hanging out with my dogs, Rowan, Higgins, and Mojo, crafting, playing golf, reading, and watching baseball!
Oklahoma State University Tulsa, OK -
CJ Page, MD
I grew up in South Africa with missionary parents and had the privilege of studying medicine there at the University of the Witwatersrand. Recently God has brought me back to the US and I've been helping care for my grandmother while transitioning to the medical system here. My background has left me with a desire to help families understand and manage their chronic conditions before they get worse, and has given me a unique interest in care for people living with HIV. Long-term I would love to be involved in global health and global missions, and am looking forward to the journey ahead!
University of Witwatersrand Johannesburg, South Africa -
Jenny Paul, DO
I grew up in Murphy, Texas, a suburb of DFW. After graduating from Baylor University, I served as an AmeriCorps volunteer in an under-resourced middle school. Following my gap year, I studied medicine at the University of North Texas Health Science Center. It was during the difficulties of medical school that I gained a deeper understanding of God’s faithfulness, mercy, and love. I am grateful to learn the art of family medicine at In His Image because it is an answered prayer. My interests include preventative medicine, medical missions, and medical education. I enjoy reading, baking, and spending time with loved ones during my free time.
University of North Texas Forth Worth, TX -
Montana Schemanski, DO
I was born in Erie PA, then moved to OH, and then ended up in Harrodsburg Ky. I went to undergrad at EKU where I met my amazing wife Tristan. Then I attended UPIKE-KYCOM for medical school. God has completely captivated my heart and I want to live my life for Him. He has called me to use medicine to bring physical healing as well as spiritual healing through the Good News of Jesus. I want to work with the underserved both domestically and overseas, and am excited to see God work out the details! Some of my passions are OMT and obstetrics. In my free time I like to collect... Hobbies! So if you have anything new to try, sign me up! I enjoy being outside, exercising, playing instruments, video games, learning Spanish, and eating the pinnacle of food-peanut butter. My wife and I are so thankful to be able to join the IHI family!
University of Pikeville Pikeville, KY -
An-jou Shih, MD
I am from Taiwan originally, but when I was six my family moved to Shanghai, China, where I completed all my education including medical school. My life goal is to live more like Jesus and make a positive impact on others. I'm thrilled to join the IHI family and am excited to grow closer to God and deepen my faith. In my spare time, I love hanging out with friends and family, playing the piano, going hiking, traveling, and just being out in nature. I am also a huge foodie and enjoy trying out different cuisines whenever I get the chance.
Shanghai Jiao Tong University Shanghai, China
PGY1
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Christian Brillhart, MD
I was born in Southern California and later moved to Coeur d'Alene, Idaho, where I spent much of my childhood. Years later, the Lord called my family and me to New Zealand, where I spent most of my adolescence. I earned a BSc in Biomedical Sciences before returning to the United States to attend Oral Roberts University, followed by OU-TU School of Community Medicine. Following Jesus has been the most exciting adventure of my life. I am passionate about caring for the whole person, mind, body, and spirit, with a strong emphasis on exercise and nutrition. My desire is to use my gifts as a physician to serve wherever the Lord calls me, whether locally or abroad. I also have a lot of hobbies. A short list would include surfing, skiing, running, hunting, roasting coffee, and walking my golden retriever named Buddy.
OU-TUTulsa, OK -
Alyssa Chin, DO
I was born in Mountain View, California and raised in the Central Valley before attending University of California, Los Angeles (UCLA) for undergraduate and Kansas City University for medical school. I grew up in a Christian home under the love and guidance of my family, but it wasn't until my time in college that I deeply understood the gospel, my personal need for a saviour, and the saving grace of God. God has been so faithful through the ups and downs of this journey and I am both humbled and excited to see how He will work through me and IHI to love and serve the communities of Tulsa and beyond. In my free time, I enjoy meet ups with my friends and family over good food or coffee, reading, traveling, and spending time with my dog, Momo.
Kansas City UniversityKansas City, MO -
Sumner Dieck, DO
I was born and raised in South Florida and attended Florida Atlantic University for undergrad. My husband, Justin, and I got married right before I started medical school at LUCOM, which was the first time either of us had ever moved. As we thought that was a large move, we have felt God tug at our hearts in the last few years to trust in him deeper to pursue a path of training that will further equip us to share the gospel. So, now we get to experience an entirely new geographic region and the state of OK, which we are stoked about! We are so grateful to be joining the IHI family and know the Lord will provide through the community there. My special interests include experiencing the outdoors, collecting plants, yard-saleing, OMT, spiritual care, and underserved medicine.
Liberty University Lynchburg, VA -
Esther Garcia, DO
I was born and raised in the small town of Russiaville, Indiana where I was introduced to the Lord at a very young age from my wonderful parents. It wasn’t until middle school where I truly began to understand the gospel and take ownership of my faith. I felt the Lord calling me to medical mission work early on in highschool and have continued to pursue that to today. I attended University of Indianapolis for college where I met my husband Carlos. We married shortly before moving to Knoxville, Tennessee for medical school. It is a blessing to be joining the IHI family, and we are excited to see how God will work in our lives over these next three years. In our free time we enjoy all things outdoors, trying new foods, and serving together.
Lincoln Memorial University Knoxville, TN -
Holly Harrison, DO
As an Army brat, I grew up in Hawaii, Maryland, and Colorado before moving to Oklahoma to attend the University of Tulsa and then OSU for medical school. The Lord took hold of my life when I was in high school, but he did a lot of growing me up in the faith in college. During that time, I studied abroad in Thailand, where God revealed to me the need for cross-cultural gospel workers; I met IHI residents through church who lit a fire in me to practice whole-person medicine with a missional mindset; and I met my now-husband Joshua! Outside of medicine, you can find me at the rock-climbing gym, serving at church, exploring Tulsa, or embarking on various DIY adventures.
OSU Tulsa, OK -
Emily McAlister, MD
I grew up in Skiatook, Oklahoma as the oldest of 3 children. I completed my undergraduate degree at Oklahoma State University followed by medical school at The University of Oklahoma College of Medicine in Oklahoma City. My husband, Braden, and I got married in December of 2023, halfway through my third year of medical school. A few things I enjoy are going to the gym and serving at church with my husband, going antiquing for my home, and needlepointing! My interests in family medicine include full-scope family medicine, lifestyle medicine, and fertility awareness-based methods of family planning and women’s health. After residency, I hope to settle down in a small town and practice rural family medicine.
University of Oklahoma OU-OKC -
Melissa Natividad, DO
I was born and raised in Spring/Tomball, Texas (basically northwest Houston) and went to undergrad at UT Austin. Although I was raised in an amazing Christian family, I didn’t personally experience the joy of salvation until feeling God’s presence and fully trusting Him in a roomful of prayer during my first medical mission trip during undergrad. Since then, I’ve been pursuing medicine in reflection of how He healed me, and I seek to follow in His footsteps by working at an FQHC and/or going on more medical missions, as I try to help bridge gaps faced in accessing healthcare. Over the years, God has been faithful to me, helping me through medical school at Sam Houston State University College of Osteopathic Medicine, mostly through placing fellow believers in my life, which ultimately brought me to the beautiful Christ-centered community at IHI. In my free time, I love spending time with my family (including two crazy nephews and a niece), singing and playing the piano, reading, watching/quoting movies and shows, listening to podcasts, crocheting/knitting, swimming, exploring new places, and, of course, going on mission trips!
Sam Houston State Conroe, TX -
Garrett Owen, DO
I grew up in Woodward, a small town in northwestern Oklahoma. I completed my undergraduate studies at McPherson College and went on to attend medical school at Oklahoma State University Center for Health Sciences. In 2021, I married my amazing wife, Kally, and in 2023 we were blessed with our first child, Hudson Brian. We're also thrilled to be expecting our second child in November 2025! My initial interest in medicine stemmed from recognizing the critical need for physicians in rural communities. As my relationship with the Lord deepened, I came to see medicine as a powerful avenue for sharing the gospel of Jesus Christ. I'm truly humbled and excited for the opportunity to train at IHI, surrounded by like-minded colleagues who share a passion for serving God through medicine. In my free time, I enjoy spending time with family, hunting, fishing, exercising, or diving into a good book.
OSU-COMTulsa, OK -
Nick Richardson, DO
I am from Tulsa, Oklahoma. Shortly after high school, I joined the United States Marine Corps, serving for 13 years and participating in multiple combat tours. I attended Northeastern State University for my undergraduate studies and graduated from medical school at Oklahoma State University. I have been married to my wife, Lana, for 20 years, and we have two children, Landon and Madison. I am very passionate about providing full-spectrum family medicine. After completing my residency, I plan to practice inpatient medicine and serve on medical missions alongside my family.
OSU Tulsa, OK -
Robbie Sikora, MD
I was homeschooled in rural Vermont, earned a B.S. from Norwich University in 2016 and a M.D. at the Geisel School of Medicine at Dartmouth in 2025. Outside of medicine, I prioritize time with my family and local church, and enjoy beekeeping and gardening.
Geisel School of Medicine of DartmouthHanover, NH
Faculty
We believe if residents are well trained and fully trained, they will become like their teachers. Therefore, the caliber of our faculty, our teachers, is of utmost importance. Every In His Image faculty member is passionate about their faith and view the practice of medicine as a calling and ministry. They are all active in clinical practice to ensure up-to-date skills and knowledge and to serve as a quality example for training residents. In addition to our core faculty, about 50 partner physicians in the community teach our residents their specialty during rotations.-
John Crouch, MD
Executive Director Emeritus -
Mitch Duininck, MD
Residency Director & CEO -
Clay Powell, MD
Senior Associate Residency Director -
Chris Place, MD
Associate Residency Director -
Ed Rylander, MD
Designated Institutional Official -
Matt Acker, MD
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Daniel Bancroft, DO
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Brandon Ganzer, DO
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Jacob Greuel, MD
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Matt Haney, DO
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Chris Jenkins, MD
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Scott Keller, MD
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Chase Ledbetter, DO
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Joel Leitch, MS
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Erin Liening, MD
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Amanda Nichols, DO
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Jeff Perry
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Bhavitha Richard
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Sarah Santillano, MD
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Joel Slaughter, DO
Behavioral Medicine Faculty
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Joel Leitch, MS
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Michelle Satterlee, Psy.D
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David Simpson, PhD
Behavioral Medicine Director
Alumni
- TULSA -
We love calling the city of Tulsa home, with its numerous parks, many nearby lakes, over 1,000 restaurants, and extensive retail shopping. One of the largest parks, spanning 100 acres along the Arkansas River, is the Gathering Place. It was chosen by TIME magazine as a top 100 greatest places in the US. We have 135 parks and trails in the Tulsa area. Many say it is like a big city, but with a small-town feel. Tulsa is a city in America’s heartland where you can feel good about bringing your family.
Tulsa embraces diversity. There is a plethora of churches to choose from, as well as local businesses and organizations that are dedicated to sharing our cultures. Tulsa is also a place that highlights the arts! It is home to world-class art museums, ballet, opera, theatre, and an outstanding philharmonic orchestra. Another very real benefit: salaries stretch farther in Tulsa. While the quality of life here is high, the cost of living is comfortably below the national average.
Tulsa is listed as one of the Top Ten Places to Live by “Relocate America.” Visit these websites for more information: travelok.com and visittulsa.com.