Johnson City Faculty
Max Bayard, M.D.
Professor & Program Director - Johnson City
I received my BS from University of Memphis and my MD from ETSU. Then I did residency at Bristol Family Medicine.
Besides 13 years in academics, I have worked about 16 years in non-academic medicine; 7 of which were as owner of a medical practice. Most of the remainder was working as a physician in federally qualified health centers, generally practicing in small communities with shortage of physicians. I am moving back to Johnson City from Vermont, where I have been doing clinical medicine for the last 11 years. I am blessed to be able to return to my role as Program Director, a position I held for about six years before moving to Vermont.
My wife and I mostly enjoy time with our 6 children and 8 grandchildren. We are geographically "challenged" with children and family in North Carolina, Tennessee, Indiana, Vermont and Florida; as such, much of our time away from work is spent traveling to visit family. Personally, I find satisfaction in spiritual exercises, such as solitude, meditation, prayer, and ministry. Professionally, I enjoy working with residents in areas such as applying evidence-based medicine, research and scholarly activity, and practice management.
Christopher Bridges, M.D.
Assistant Professor & Clerkship Director
I was born and raised in Greenville, SC. I am a Clemson University alum and completed my medical education at the Medical University of South Carolina. I completed residency at ETSU Family Medicine in Johnson City and upon graduation stayed on as faculty. In medicine, I have found a passion in point of care ultrasound, skin procedures, and preventative medicine. I love working with medical students and residents in both the clinic and hospital. Outside of work, I enjoy playing disc golf and ball golf, spending time with my family, partner, and our dog Sweet Pea. The only thing that comes close to my love of medicine is my love of live music.
John Crabill, M.D.
For Dr. Crabill, becoming a doctor was a calling. While working toward a different degree in college, he heard a missionary nurse give a talk. After, he felt like becoming a doctor was something that he was supposed to do.
Dr. Crabill served 20 years in the United States Navy. Some of the interesting places that he practiced medicine with the Navy include Asia, a mud castle in Afghanistan, and aboard a moving ship at sea. Dr. Crabill believes his years of experience as a physician and a teacher of physicians help him to be a better doctor and to provide great care to his patients.
Dr. Crabill grew up in South Bend, Indiana. He has lived on the east and west coasts of the United States, and in the desert of southern California. In recent years, the mountains of Appalachia seemed to be calling to him. When he visited the area, he fell in love with it and with the people here.
Fereshteh Gerayli, M.D., FAAFP
Professor - Johnson City Family Medicine Residency
I received my M.D. from Mashad University in Iran. I practiced in an underserved area, where I provided general medical care, as well as women’s health and non-surgical obstetrics. While living in Germany, I became trained in acupuncture and worked there for a few years before moving to the US in 1996.
Upon graduating from East Kentucky Family Medicine residency, I stayed on as faculty and relocated to Johnson City in 2005. I have enjoyed teaching and lifelong learning in the academic settings in Kentucky and Tennessee. I love every aspect of medicine, with women’s health and skin conditions being of special interest to me.
Outside of medicine, my favorite pastime is spending time with my family, especially my two adorable grandchildren who live in Maryland. I also enjoy traveling, hiking, and exploring the beautiful nature of Northeast Tennessee.
Jim Holt, M.D., FAAFP
Professor & Associate Program Director
I was born in Michigan, but raised in Baltimore. I am the fifth of six children. I attended Princeton University, receiving an A.B. in Biochemistry and a teaching license in math and science, graduating cum laude. I completed my medical school at the University of Maryland in 1982 and served my residency at the Medical University of South Carolina in Charleston. I practiced at a rural health clinic in Warrenton, NC, from 1985 to 1988 and at a private group practice in Lancaster, SC, from 1988 to 2001.
Since joining the Johnson City Family Practice Residency Program in August 2001, I have served as the Medical Director, Program Director, and the Associate Program Director. I have overseen both the Geriatrics rotation and residency didactics since 2001. I have been active in leadership in the Tennessee Academy of Family Physicians for many years, and I am currently serving as President. My wife Judy and I have five children and five grandchildren.
Brian Ingalls, M.D.
Born in Durham, NC when my father was in Surgery Residency at Duke, our family traveled to Oklahoma City, and then on to settle in the east-central Illinois town of Paris. My eventual medical career took me to Chattanooga, TN for 30 years of practice in Emergency Medicine/Family Medicine/Acute Care.
Two of our children have attended ETSU, and when the opportunity to join ETSU Family Medicine Associates arose, I felt it was a natural fit. I enjoy the outdoors with family and pets, including hiking, biking and golfing. I especially enjoy taking care of patients and their families, seeing them for follow-up visits...something I missed during my time in the ER!
Ralph Mills, M.D., FAAFP
Assistant Professor - Sports Medicine
Dr. Ralph Mills is a native of Madisonville, Tennessee. He graduated from Hiwassee College in 1978, received his Bachelor of Science degree from King University in Bristol, Tennessee, in 1980, and earned his medical degree from East Tennessee State University Quillen College of Medicine in 1984. He is board-certified in sports medicine and family medicine.
Dr. Mills is a clinical assistant professor at East Tennessee State University, where he is heavily involved with BucSports, and he is also a team physician for the university. He is a fellow of the American Academy of Family Physicians and a member of the American Medical Society for Sports Medicine. Dr. Mills also works with various high schools throughout the region providing sports medicine coverage.
Caleb Osborne, M.D.
Assistant Professor - Johnson City
I was born and raised in Alabama. I did my undergrad at Troy University and medical school at UAB. I came to ETSU for my Family Medicine residency, which I completed in 2021. I then stayed for an additional year as an Addiction Medicine fellow and am very happy to be staying on as faculty. I live in Johnson City with my wife (Lindsey) and 3 children, and we love the area and being so close to the mountains.
Allison Powers, M.D.
Dr. Powers received her M.D. from Virginia Commonwealth University School of Medicine in Richmond, Virginia. She completed her family medicine residency at the St. Francis Bon Secours Family Medicine Residency Program in Midlothian, Virginia. Dr. Powers additionally completed a fellowship in maternal newborn health at Beaumont Hospital — Wayne in Wayne, Michigan. She holds a Bachelor of Arts degree in public health from The College of William and Mary. She is board certified in family medicine and holds additional certifications in pediatric life support, advanced lifesaving in obstetrics, and in the neonatal resuscitation program.
Ryan Tewell, Pharm.D.
Assistant Professor & Medical Director, Family Medicine and Bill Gatton College of Pharmacy
I was born and raised in the small Southern Illinois town of Robinson, Illinois. I obtained my Doctorate of Pharmacy degree from Butler University in Indianapolis. Moving South, I completed my PGY-1 residency at the Salem VA Medical Center in Salem, Virginia. I then spent a year on the coast completing my PGY-2 Ambulatory Care residency in Wilmington, North Carolina at New Hanover Regional Medical Center. The family feel of ETSU, focus on interdisciplinary care, and beautiful landscape brought me to the area.
My interest areas include diabetes, hypertension, ASCVD risk reduction, and reducing polypharmacy. Outside of pharmacy, I enjoy hiking with my wife and two dogs, reading, playing guitar, and watching Butler basketball and Colts football.
Joyce Troxler, M.D.
Associate Professor & Addiction Medicine Program Director
I am Board Certified in Family Medicine and Addiction Medicine. The majority of my clinical experience was gained in a rural community in Southwestern New Mexico, and my personal history is that of a rural upbringing in Central Appalachia. The last 3 years of my career in rural New Mexico was largely focused on providing treatment for Substance Use Disorder. In 2018 I returned to Tennessee to join the Department of Family Medicine.
Working with the Department of Family Medicine at East Tennessee State University, I assisted with the formation of an ACGME accredited Addiction Medicine Fellowship in 2019. Our ADM Fellowship graduates two physicians per year who will address the impact of addictive disorders in rural and under-served communities. https://works.bepress.com/joyce-troxler/about/
Joey Tucciarone, Ph.D.
Assistant Professor, Behavioral Medicine & Psychologist
I grew up in Roanoke, Virginia before moving to Johnson City in 2009 to attend ETSU,
where in 2012 I earned my bachelor's in psychology. In 2014, I completed a master's
in public health and began working for the Appalachian Regional Coalition on Homelessness
(ARCH) as a case manager and resource coordinator. My work with marginalized and vulnerable
populations became the impetus for returning to ETSU in 2016 to pursue training in
clinical psychology. Upon completing my internship with Hopewell Health Center in
Gallipoilis, Ohio in 2021, I returned to Johnson City to begin my postdoctoral training
with the Institute for Integrated Behavioral Health as a behavioral health consultant
at Johnson City Family Medicine Associates.
I practice as a generalist, treating people across the lifespan for a wide range of
concerns. Trained in a variety of modalities, I am particularly drawn to Acceptance
and Commitment Therapy (ACT). When I'm not in the clinic, I enjoy spending time with
friends and family, making art and music, walking aimlessly in the woods, and playing
Benjamin Whitfield, D.O.
Assistant Professor / Hospitalist
Dr. Whitfield grew up in a tiny town in the foothills of Georgia and in Chattanooga. He was privileged to earn his undergraduate degree from The University of Georgia and his Master’s degree from Columbia University in New York City. He completed his basic medical requirements at Temple University and earned his medical degree from the Philadelphia College of Osteopathic Medicine. Before he became a lifelong student, he worked with the Mayor’s Office of New York City, Doctors Without Borders in several African countries, FEMA, The Philadelphia Department of Health and as a top-notch motorcycle mechanic.
The only thing Dr. Whitfield enjoys more than practicing medicine is being outside. You can find him riding motorcycles, bear hunting, camping, hiking, gardening, or sitting around a bonfire with friends and cocktails. He has a weakness for chocolate chip cookies, homegrown tomatoes and dogs. Dr. Whitfield has a passion for providing medical care to underserved areas.