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Francine Higgs-Shipman, M.D.

Timothy McClain, M.D.

Prema Siva, M.D.

William Warren, M.D.



Timothy P. McClain, M.D.
Specialty Internal Medicine

Dr. Timothy McClain is Board Certified in Internal Medicine. Dr. McClain is particularly interested in preventive medicine, nutrition, and fitness. Since 2003 he has been an advisor for the American College of Physicians, helping to govern the certification of Internal Medicine doctors in this country. Dr. McClain recently became the medical advisor to the National Fitness Network.

Prema Siva, M.D.
Specialty Internal Medicine

Dr. Siva is a Board Certified Internal Medicine Physician. Dr. Siva received her training at Jamaica Hospital, Jamaica, New York which is an affiliate of Cornell University. Dr. Siva believes in treating her patients with respect and providing them with the best care.

William A. Warren, M.D.
Specialty Internal Medicine

Dr. Bill Warren is Board Certified in Internal Medicine and on the active medical staff at Laurel Regional Hospital where he is the Medical Director of Respiratory Care and Pulmonary Function, and a member of the institutional board of directors for the hospital. Dr. Warren has lived in Laurel all his life and feel a deep connection with the community.


Potomac Physicians has been recognized by the National Committee for Quality Assurance for meeting the highest standards and performance benchmarks in the care of patients with Diabetes to enhance patient care.



Laurel Health Center

8871 Gorman Road
Laurel, Maryland 20723

Hours- Monday & Thursday 8:00am - 7:00pm
Tuesday, Wed. & Friday 8:00am -5:00pm
Saturday 9:00am - 1:00pm

Potomac Physicians participate in a number of insurance plans. Call to see if yours is included.