Kettering Health (ketteringhealth.org)
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Leadership and Faculty

We are fortunate to have strong physician champions who are leading this program. They represent more than 50 years of combined real-world experience that provides a strong clinical base from which to teach.

Supporting them is a passionate physician faculty who are dedicated to help our residents leverage their passion for family medicine.

Courtney Stroble, MD, Program Director

Welcome to the Kettering Health Network Indu and Raj Soin Family Medicine Residency! Our program has been strategically developed to train compassionate, competent, full-spectrum family physicians prepared to work in any type of practice or hospital upon graduation. The residency is unopposed and located in the new, state of the art hospital, Soin Medical Center. This is a 157 bed, acute care hospital built in 2012, located in Beavercreek, Ohio, a beautiful suburb of Dayton, Ohio.

I may be a bit biased, having been born and raised here in the Dayton region, but believe it is an incredible place to train, work and live. I attended WSU BSOM, completed residency with the Wright State University Family Medicine Residency Program, and then began working for Kettering Health upon graduation. Though I have worked in a variety of practice settings including Emergency Medicine, Urgent Care, Outpatient Family Medicine and Inpatient medicine, I have definitely found my greatest passion here in Medical Education with Soin's Graduate Medical Education Training Programs. I couldn't be more honored to be the new Program Director as of March 2022. Alongside our residents, I continue to practice Emergency and Inpatient medicine at Soin as well as ambulatory care at Good Neighbor House, our clinic for the uninsured.

My true love in life is my family. I am married and we have 3 active kids who keep us very busy. In my spare time, I love to run, swim, box, hike and do anything active outdoors with my kids. The Dayton region has a multitude of parks, trails and outdoor activities to keep us all occupied!

The Soin Family Medicine and Transitional Year Residency Programs have been built on a foundation of support, trust, honest communication and fostering relationships with each other and with our patients. We would love to have the opportunity to meet you and share more information about our program in an interview and/or site visit. Thank you for taking the time to consider our community-based, individualized and flexible program.

Although the residency is still fairly new, the faculty has multiple years of experience in teaching family practice residents.

As your director, I guarantee that your educational experience will be rewarding and comprehensive.

The volunteer faculty at Soin is extremely enthusiastic about training new residents.

Please don't hesitate to contact me at

Thank you for your interest.


Courtney Stroble, MD
Program Director
Family Medicine Residency
Soin Medical Center


Rebecca Yeager, MD, Associate Program Director

As one of the associate program directors for the Soin Family Medicine Residency, I look forward to assisting you in shaping your training to ensure you become exactly the physician you would like to be. In my role as GME Chief Well-Being Officer, I will also continue to work toward systemic changes to decrease physician burnout and help residents develop the resiliency that will foster a fulfilling, meaningful career as a physician.

My specific interests within Family Medicine fall in the areas of graduate medical education, underserved care (both locally and globally), outpatient procedures, physician well-being, inpatient medicine and reproductive health. I enjoy exploring ways to integrate these interests into my daily practice, while also facilitating the growth of our learners within these areas of medicine. Having a variety of interests within the field of Family Medicine myself, I understand the importance of a full spectrum education in providing the highest quality of care to our patients. Our graduates' varied career pursuits highlight the quality of our broad spectrum training; from full spectrum outpatient medicine with OB to inpatient medicine to FQHC's to academic medicine to securing fellowship positions, our graduates go on to serve in several unique settings.

We appreciate and cultivate the diversity of interests our residents bring to the program. If you train with Soin Family Medicine Residency, I have no doubt you will receive excellent full spectrum training and the evidence-based tools and resources to continue building your medical knowledge base. Additionally, you will benefit from an individualized curriculum directed at your specific areas of interest. We look forward to helping build your career as a well-rounded, assured, and compassionate physician who provides excellent patient care to our community here in Dayton and to your future communities!

Rebecca Yeager, MD, FAAFP
Associate Program Director/GME Chief Well-Being Officer
Soin Family Medicine Residency
Kettering Health



J. Wesley Halderman, MD, FAAFP, Associate Program Director

As associate program director and site director of our rural continuity clinic, I appreciate your interest in our growing program and specifically in the recently-started Rural Pathway. The Jamestown Health Center, a Medicare-certified Rural Health Clinic (RHC), is committed to meeting the needs of our rural community by training excellent family physicians who will provide compassionate, evidence based, comprehensive care. They will specifically learn to identify the needs of the underserved and marginalized in our community, have the skills to assess the needs of a community, take a leadership role in developing medical outreach, and to provide best practice medical care within a rural community clinic framework.

Growing up on a family farm in a nearby rural community in the Miami Valley, I feel most at home when taking care of patients from rural and small-town Ohio. Practicing for 8 years with the same physician group in Jamestown, I enjoy caring for patients of all ages and have specific interest in point-of-care ultrasound, concussion care, preventative medicine, and pediatric/newborn care. Having trained at a similar unopposed, "rural-facing" community hospital-based program, I recognize the benefits of being able to tailor your educational experience to meet your personal career goals. With a combined 75+ years of clinical experience, our physician group will be there to support you along the way.

I believe strongly that you would benefit from the training we offer here at Soin, and more specifically at the Jamestown site. It would be a privilege to work alongside you and share in the process of lifelong learning together as we care for our best teachers - our wonderful patients!

J. Wesley Halderman, MD, FAAFP
Associate Program Director/Rural Site Director
Soin Family Medicine Residency
Kettering Health


Core Faculty

Laura Chambers-Kersh, MD
Laura Chambers-Kersh, MD
Full Spectrum FM

Sarah Dula, DO
Sarah Dula, DO
FM

Jonathan Gaskill, MD
Jonathan Gaskill, MD
FM

J. Wesley Halderman, MD
J. Wesley Halderman, MD, FAAFP
FM

Isaac Koh, MD
Isaac Koh, MD
FM

Courtney Stroble, MD
Erica Seabold, MD
Full Spectrum FM

Courtney Stroble, MD
Courtney Stroble, MD
FM

Matthew Yeager, MD
Matthew Yeager, MD
FM

Rebecca Yeager, MD
Rebecca Yeager, MD
FM


Clinical Site Directors/Preceptors

Jolinda Caswell, MD
Jolinda Caswell, MD
FM

Nicklaus Hess, DO
Nicklaus Hess, DO
FM

Crystal Hill, MD
Crystal Hill, MD
Neonatology

Kali Hollingsworth, DO
Kali Hollingsworth, DO
FM/Sports Med

Christopher Holloway, MD
Christopher Holloway, MD
Family Medicine

Isaac Humphrey, MD
Isaac Humphrey, MD
IM

Sean Johnson, DO
Sean Johnson, DO
FM

Jerika Ortlieb, MD
Jerika Ortlieb, MD
FM

Jennifer Otterbacher, MD
Jennifer Otterbacher, MD
FM

Daniel Pearson, MD
Daniel Pearson, MD
ICU

Cherish Prutzman, MD
Cherish Prutzman, MD
Geriatrics

Jonathan Stofer, MD
Jonathan Stofer, MD
FM

Michael Timpone, MD
Michael Timpone, MD
FM

Huong-Thao Tran, MD
Huong-Thao Tran, MD
FM

Steven Tomlinson, MD
Steven Tomlinson, MD
Family Medicine

Lawrence Udom, MD
Lawrence Udom, MD
FM/Psychiatry

Lisa Vantrease, MD
Lisa Vantrease, MD
FM

Gordon Walbroehl, MD
Gordon Walbroehl, MD
FM



Faculty