Pinnacle Internal Medicine

George H. Gleeson, M.D.

Bernadette G. Harris, M.D.

Elmer J. Holzinger, M.D.

Louis E. Leff, M.D.

Ronnie C. Parker, M.D.

James R. Sahovey, M.D.

Adam E. Sohnen, M.D.

Jessica L. Davis, CRNP


Ronnie C. Parker, M.D. received his undergradute degree from the University of South Carolina and his medical degree from the Medical University of South Carolina.

Dr. Parker completed his Internship and Residency at the University of Pittsburgh Health Center Hospitals.

Dr. Parker is board certified in Internal Medicine by the American Board of Internal Medicine.

Professional Organizations:
Dr. Parker has admitting privileges at UPMC Shadyside hospital. He is a member of :

-The American College of Physicians
-The Allegheny County Medical Society