Primary Health Care Associates physicians

Lloyd A. Bonner, MD

Dr. Bonner attended Dickinson College for his undergraduate degree. He received his medical degree from the University of Michigan School of Medicine and completed his internal medicine residency from Henry Ford Hospital. Dr. Bonner is board certified by the American Board of Internal Medicine. He is a member of the Richmond Academy of Medicine.

Arleeta M. Diggs, MD

Dr. Diggs attended Howard University for her undergraduate degree. She received her medical degree from Eastern Virginia Medical School and completed her residency at Virginia Commonwealth University Practice Residency Program. Dr. Diggs is board certified in family medicine and interested in women's health. She was raised in Richmond, Virginia, and is a graduate of Hermitage High School and a parent of two children. Prior to joining the medical group, Dr. Diggs practiced in the Colonial Heights area for 10 years.

Harold T. Green Jr., MD, FCCP

Dr. Green received his undergraduate degree from Howard University located in Washington, D.C. He received his medical degree from Howard University College of Medicine where he also completed his internal medicine residency. Dr. Green is board certified in internal medicine. He brings with him 30 years of experience practicing in the Richmond area and a dedicated and experienced staff. Dr. Green is married and has three children.

Roderick E. Haithcock, MD

Dr. Haithcock attended Olivet College for his undergraduate degree. He received his medical degree from Wayne State University School of Medicine and completed his internal medicine residency from Henry Ford Hospital. Dr. Haithcock is board certified by the American Board of Internal Medicine and is a Fellow of the American College of Physicians, add certified Medical Director. He is a member of the American Medical Association and the Richmond Academy of Medicine.

Stephen Popovich, MD

Dr. Popovich attended the University of Virginia for his undergraduate degree, where he graduated with honors. He received his medical degree from Virginia Commonwealth University School of Medicine and completed an internal medicine residency at Virginia Commonwealth University Health System. Dr. Popovich is board certified in internal medicine.

Diane Sinnatamby, MD, FNP-BC

Dr. Sinnatamby attended the University of Kelaniya for her undergraduate degree. She received her medical degree from North Colombo Medical College located in Sri Lanka and completed an internal medicine residency and fellowship in infectious disease at St. Michael's Medical Center. Dr. Sinnatamby is board certified in internal medicine and infectious disease.

Dawn P. Walker, MD

Dr. Walker attended the University of Arizona and received her Bachelor of Science in interdisciplinary studies. She obtained her medical degree from Wayne State University in Detroit, Michigan, and completed her family medicine residency from William Beaumont Hospital. Dr. Walker is board certified by the American Academy of Family Medicine. In addition, Dr. Walker is fluent in American Sign Language.

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