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.

Credentialed in core family medicine procedures, Dr. Fell also performs implantable contraception device insertions, such as IUD and Nexplanon. He anticipates that the next significant development in family medicine will incorporate genetic testing to predict which medications are more likely to help individual patients with chronic diseases.

James H. Mixon MD
James H. Mixon M.D.In 1979, Dr. Mixon earned his medical degree from Temple University in Philadelphia. He completed family medicine residency training at Eastern Virginia Medical School in 1982. Dr. Mixon is board-certified by the American Board of Family Medicine.

Dr. Mixon’s desire to manage multiple types of patient problems and provide basic medical care led him to become a family medicine physician. With decades of experience and knowledge, he welcomes his patients to talk to him about their concerns. Dr. Mixon believes that a well-informed patient is a well-treated patient.

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, MDAfter earning his medical degree from East Carolina University, Dr. Sutton completed an internal medicine residency at Howard University Hospital in Washington D.C. in 1990. He is board-certified by the American Board of Internal Medicine.

Dr. Sutton is an internal medicine physician with 30 years of experience and a mission to offer high-quality, comprehensive health management for all stages of adult life. He has a particular passion for helping the growing number of people afflicted with hypertension and diabetes, especially within our elderly population. Dr. Sutton enjoys providing these patients with the necessary tools to manage their conditions.

No matter what the medical issue is, Dr. Sutton considers the entire body as a whole, guiding his patients toward overall health. He provides thorough examinations and thoughtful diagnoses while welcoming and understanding the diversity among patients. Believing that it is essential to walk with and be there for each patient, Dr. Sutton hopes to positively impact families throughout the Hampton Roads community.

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.