Our Faculty

Paul QuesenberryPaul Quesenberry, M.D., FAAFP - Program Director

Dr. Quesenberry received his medical degree from the Medical College of Virginia in Richmond, Virginia. and completed his residency in family medicine at Riverside Regional Medical Center in Newport News, Virginia. Dr. Quesenberry brings 25 years of private practice experience to the residency, which included 11 years of inpatient hospital and obstetrical work. He is a diplomate of the American Academy of Family Practice and is board certified in family medicine by the American Board of Family Medicine. He enjoys the relational aspects of clinical medicine, application of evidence-based guidelines in practice, and bringing efficiency to clinical practice. Dr. Quesenberry has decades of leadership experience in large clinical practice groups and his church. He is a native of Hagerstown and enjoys spending time with his family, making music, engaging in reflective practice, and being outdoors. Dr. Quesenberry oversees the Emergency Medicine, Cardiology, Geriatrics, and the Health Systems Management rotations.

Watch Dr. Quesenberry's video bio

View Profile

Catherine Feaga, D.O. - Associate Program Director, Director of Osteopathic Education

Dr. Feaga is originally from Howard County, Maryland and received her medical degree from West Virginia School of Osteopathic Medicine. She completed her residency in family medicine at Maine-Dartmouth Family Medicine Residency in 2013, where she also served as chief resident. Dr. Feaga practices full-spectrum rural family medicine, including non-operative obstetrics and has been teaching family medicine residents since 2014. With an extensive background in integrative medicine and a holistic approach to patient care, Dr. Feaga enjoys helping patients reverse chronic disease and regain and maintain their health. She is passionate about Osteopathy and expanding resident’s skills sets; she continues to develop her own skills in Biodynamic and Cranial Osteopathy in particular. Dr. Feaga is board certified in family medicine by the American Board of Family Medicine and in integrative medicine by the American Board of Physician Specialties. She is working towards bringing formal ACGME Osteopathic Recognition and an integrative medicine track to Meritus. Her occasional work in Valdez, Alaska provides residents with an opportunity for a frontier medicine elective. Dr. Feaga oversees the Obstetrics, Gynecology, Pediatrics, Nutrition, and Pain rotations. She is also core faculty on the family medicine inpatient service.

Watch Dr. Feaga's video bio

View Profile

Bradley J. Miller, D.O., FAAFP - Designated Institutional Official, Core Faculty

Dr. Miller joined the Meritus Family Medicine Residency in June 2020. He received his medical degree from the Philadelphia College of Osteopathic Medicine in Philadelphia, PA. Dr. Miller completed an osteopathic internship at Jefferson Northeast in Langhorne, PA, followed by a residency in family medicine at Geisinger Medical Center in Danville, PA. After spending five years in a rural practice, Dr. Miller joined the UPMC Williamsport Family Medicine Residency in Williamsport PA where he served as Program Director for eight of his thirteen year tenure. He has served on several national committees of the ACOFP, AOA, AODME and ACGME. He is a graduate of the National Institute of Program Director Development and is a clinical associate professor at several medical schools. In addition to family medicine, Dr. Miller has developed a clinical expertise and research interest in addiction medicine with attention to opioid addiction. He has served nationally as a mentor, consultant and instructor for providers and communities interested in developing strategies to treat patients with opioid use disorders. Dr. Miller is board certified in family medicine by the American Board of Family Medicine and the American Osteopathic Board of Family Physicians. He is a Fellow of the American Academy of Family Physicians and member of the American Society of Addiction Medicine.

Watch Dr. Miller's video bio

View Profile

Dr. OkuwobiObafemi Okuwobi, M.D., M.B.A., FAAFP - Clinical Core Faculty

Dr. Okuwobi received his medical degree from Lagos University Teaching Hospital in Lagos, Nigeria and completed his residency in family medicine at Bronx Lebanon Hospital Center in New York. During his last year of residency, he served as chief resident. After completing a Faculty Development Fellowship, Dr. Okuwobi taught as an assistant professor of family medicine and served as the pre-doctoral director of the family medicine department at the Morehouse School of Medicine in Atlanta, Ga. From there, he established a family medicine practice in Decatur, Ga., and served as president and medical director. In 2010, he joined Johns Hopkins Community Physicians in Rockville, Md. as the office medical director until he joined the Meritus Family Medicine Residency Program. Dr. Okuwobi has a master of business administration in health services management from the Johns Hopkins Carey Business School. He is also a member and fellow of the American Academy of Family Physicians, a member of the Society of Teachers of Family Medicine and is board certified in family medicine. Dr. Okuwobi joined the Meritus faculty in April 2019 and oversees the Surgery, Orthopedics/Sports Medicine and ICU rotations.

Watch Dr. Okuwobi's video bio

View Profile

Douglas A. Spotts, M.D., FAAFP

Dr. Spotts is a graduate of Juniata College and The Pennsylvania State University College of Medicine. He is a Fellow of the American Academy of Family Physicians and a Fellow of the College of Physicians of Philadelphia. He is a Past President of the Pennsylvania Academy of Family Physicians and a Past President of the American Academy of Family Physicians Foundation.

Dr. Spotts joined Meritus Health in February 2018 as the first VP/Chief Population Health Officer. This position was renamed Chief Health Officer in October 2019 and includes oversight of the Meritus Family Medicine Residency Program, the developing office of Graduate Medical Education (GME), leadership of the “Health” portion of Meritus’ Bold Goals 2030 Strategic Plan, value- based care transformation, and wellness and community health initiatives. He provides clinical and quality oversight to Meritus Medical Practices.

Prior to his arrival at Meritus Health, Dr. Spotts held the position of Chief Medical Information Officer of Evangelical Community Hospital, in Lewisburg, PA, 2011-2016 and Chief Health Information Officer in 2016-2018. He practiced family medicine in his home community for 23 years prior to his move to Meritus Health.

Dr. Spotts is an active member of Sunrise Rotary Club, Hagerstown-Fountainhead and St. John’s Episcopal Church, Hagerstown. He is a member and President of the Washington County Health Advisory Board, board member of the Maryland Symphony and member of the Washington County Commission on Aging. He is a past Alumni representative/ board member and volunteer of Juniata College, a member of the Penn State College of Medicine Admissions Committee, and holds an academic appointment as Assistant Clinical Professor of Family Medicine at the Penn State College of Medicine. He is married to Sue Ellen Spotts, and they are the parents of two adult children, Ian and Hannah. He enjoys the outdoors, travel, and music of all kinds.

Watch Dr. Spotts video bio.

View Profile

Aaron GeorgeAaron George, D.O., FAAFP, FCPP - Chief Medical Officer, Core Faculty

Dr. George received his medical degree from the Philadelphia College of Osteopathic Medicine in Philadelphia, Pa. and completed his residency in family medicine at Duke University Medical Center in Durham, N.C. He is a clinical associate professor at Penn State College of Medicine and was an Andlinger fellow in health policy with the Center for Public Health in Vienna, Austria. Dr. George serves as a member of the Bureau of Membership for the American Osteopathic Association, a board member of the Family Medicine Education Consortium and a fellow of the College of Physicians of Philadelphia. He was a recipient of the Bristol-Myers Squibb award for excellence in graduate medical education, as well as Meritus’ inaugural Faculty of the Year. Dr. George is board certified in family medicine by the American Board of Family Medicine.

Watch Dr. George's video bio

View Profile

Matthew Wagner, M.D. - Director of Behavioral Health

Dr. Wagner received his medical degree and postgraduate training in psychiatry at the University of Maryland School of Medicine. After 2 years on the faculty in the Department of Psychiatry, he entered private practice for 5 years before joining the Meritus Medical system. He has 30 years of experience in outpatient and inpatient psychiatry. He has served as division chief for psychiatry at Meritus and for the last 2 years has also served as Behavioral Health Service Line leader. He is board certified in psychiatry and in 1995 achieved a certificate of added qualification in geriatric psychiatry.

Watch Dr. Wagner's video bio

View Profile

Stephen E. Metzner, M.D. - Geriatrician

Dr. Metzner received his medical degree from the University of Maryland School of Medicine and completed his residency in Family Medicine at the Good Samaritan Hospital in Phoenix, Arizona. During his senior year there, he served as chief resident. While practicing in Arizona for 10 years, he was the Medical Director of the Fountain Hills Family Health Center and later of the Kenneth M. Piper Family Health Center in Scottsdale, Arizona. He also served as an instructor in the Scottsdale Memorial Hospital Family Practice Residency program. For over 30 years, he has practiced in the Hagerstown area. During that time, Dr. Metzner has been on the Medical Executive Committee and served as Chairman of the Family Practice Department at the former Washington County Hospital. In addition, he has been the medical director of Homewood Retirement Center and the team physician for North Hagerstown High School football – his alma mater. Dr. Metzner served as a delegate to Med Chi, the Maryland State Medical Society, and was president of the Washington County Medical Society. He is active in the fire service and is the physician for the Funkstown Volunteer Fire Company, which serves as the first responders to Meritus Medical Center. Dr. Metzner oversees the geriatrics rotation and nursing home experience.

Watch Dr. Metzner's video bio

View Profile

Dipti Mistry, M.D. – Internal Medicine – Pediatrics

Dr. Mistry is a 2010 graduate of University of Maryland School of Medicine and completed her residency in Combined Internal Medicine and Pediatrics at Loyola University Medical Center where she also served as chief resident. She is originally from Damascus, MD. Dr. Mistry has been practicing full-spectrum internal medicine and pediatrics since 2014 at Smithsburg Family Medicine. In addition to her passion for providing high quality care inside and outside of the hospital, Dr. Mistry serves on the Open Access Committee and the EHR Physician Advisory Council (she is also an Epic trainer). She is a clinical preceptor for University of Maryland AHEC students and Frostburg University physician assistant students. Dr. Mistry joined the residency faculty in 2020 and oversees the family medicine inpatient service.

View Profile

Sandra Fowler, MD, MPH – Family Medicine Clinical Faculty

Dr. Fowler was born and raised in Philadelphia. She completed her medical degree at Temple University School of Medicine in Philadelphia, PA and her residency at Morehouse School of Medicine in Atlanta, GA where she also served as chief resident. Dr. Fowler earned her Masters of Public Health from Johns Hopkins University. She is a tireless advocate for the underserved in our community, having practiced in Washington County, Maryland since 1996. During her time in Hagerstown, she established Walnut Street Clinic and currently serves as the medical director of the Community Free Clinic in downtown Hagerstown. She is active in her faith community.

Watch Dr. Fowler's video bio

View Profile

William Royster, MD – Family Medicine Clinical Faculty

Dr. Royster earned his medical degree from the University of Medicine and Dentistry of New Jersey, New Jersey Medical School in Newark, N.J. and completed his family medicine residency at the John F. Kennedy Center in Edison, N.J. Dr. Royster is board certified in family medicine and is a member of the American Academy of Family Physicians. He has served Meritus and the Hagerstown community since 1997.

Watch Dr. Royster's video bio

View Profile

Matthew Kearney, PA-C – Clinical Faculty

Matthew graduated from James Madison University in Harrisonburg, Va. with a master’s degree in physician assistant studies. He also received a Master of Science degree in physiology from Penn State University, College of Medicine in Hershey, Pa. He is certified by the National Commission on Certification of Physician Assistants.

View Profile

Diana Mitzel, BS – Residency Coordinator

Mrs. Mitzel received her Bachelor of Science in Human Services from Bluefield College and her Certified Physician Practice Manager from the American Academy of Professional Coders. She joined the Meritus family Medicine Residency program in 2020 after serving as an experiential education coordinator for a pharmacy doctorate program and as a medical language specialist over the previous 20 years. She devotes time within the Shenandoah Valley community where she volunteers as a young adult ministry leader.

Jean Gross - Residency Department Assistant

Ms. Gross received her Associates Degree from Lancaster Bible College and her Certified Medical Office Manager certification from Practice Management Institute. After 27 years of private practice management, she joined the Meritus Family Medicine Residency in 2020. Jean enjoys the challenge of supporting a team which is ever growing and evolving to best meet the needs of resident education.