Our Team

Robert S. Fell, DO
Robert S. Fell, D.O.Dr. Fell earned his medical degree from the Virginia College of Osteopathic Medicine in Blacksburg. After an internship at Naval Medical Center Portsmouth, he completed a family medicine residency at Naval Hospital Camp Lejeune. He is board-certified by the American Board of Family Medicine.

With a U.S. Navy career spanning 20 years, Dr. Fell spent 10 years as a physician providing award-winning medical care to the military, under combat conditions in Afghanistan, as a full-scope physician at Naval Hospital Guam, on a local aircraft carrier, and at a Yorktown military clinic. He enjoys the outpatient setting of primary care, along with the opportunity to make a difference in the lives of people of all ages.

James H. Mixon MD
James H. Mixon M.D.Dr. Mixon graduated from Temple University School of Medicine and completed his residency at Eastern Virginia Medical School. He has been treating families in Hampton Roads for more than 27 years. Dr. Mixon enjoys family medicine because of the variety of challenges it provides as he cares for entire families. He believes that "life has stages and each stage has unique illnesses and conditions. These illnesses may require different treatments at each life stage." He is married and enjoys skiing in his spare time.


Sheila E. Tapp, MD
Sheila E. Tapp, M.D.Dr. Tapp attended Brown University and the Albert Einstein College of Medicine at Yeshiva University. She completed residency training and a medical internship at New York University Medical Center. She is board-certified by the American Board of Internal Medicine.


Thaddeus Sutton, MD
Thaddeus Sutton, MDDr. Sutton graduated from East Carolina University Brody School of Medicine and completed his residency at Howard University Hospital in 1990. Dr. Sutton specializes in internal medicine and has a special interest in helping his patients manage chronic conditions such as diabetes or hypertension. Dr. Sutton chose internal medicine because, "the field allows me to provide comprehensive medical care to my patients." He treats patients ages 16 and older.


Johnnie Lawrimore, NP
Johnnie Lawrimore, NPJohnnie received her Bachelor of Science in nursing with honors from Hampton University, where she developed a self-care model for nursing students. She went on to earn her Master of Science in nursing with honors from South University in Savannah, Georgia. Board-certified as a Family Nurse Practitioner by the American Nurses Credentialing Center, Johnnie also holds certifications as a Geriatric Resource Nurse, Bariatric Resource Nurse and Certified Preconception Peer Educator.

Nominated multiple times by patients for the DAISY Award for Extraordinary Nurses, Johnnie's medical philosophy is based on providing competent and compassionate care in a professional, ethical manner. She treats her patients as if they were family members, while respecting their cultural and spiritual differences. Johnnie's main focus is to assist patients in breaking all barriers that prevent them from enjoying good health and well-being. She extends that support to our local community through a variety of volunteerism and health care advocacy efforts.