Prince Frederick
110 Hospital Road, Suite 310
Prince Frederick, MD 20678
(410) 535-2005 • (301) 855-1644

Located in medical office building adjacent and at the front of Calvert Memorial Hospital on Routes 2/4 slightly north of Prince Frederick.

How to get there:

• Map of Calvert County showing Prince Frederick
• Link to Mapquest for door to door driving instructions

Physicians at Prince Frederick

All physicians of Calvert Internal Medicine work at Prince Frederick at least one day of the week. (Click on names for information)

Internal Medicine

John Barth, M.D.
Eric Berg, M.D.
Gwyneth A. Blattau, M.D.
David Gallatin, M.D.
Charles Judge, M.D.
Jonathan Lowenthal, M.D.
Tara Mendonca, M.D.
Glynis Moody, M.D.
Julie O'Keefe, M.D.
David Tardio, M.D.
John Weigel, M.D.

Allergy/ Internal Medicine

Jonathan Fears, M.D.

Pulmonary/Internal Medicine

Peter Wisniewski, M.D.

Infectious Diseases/Internal Medicine

Paul Pomilla, M.D.

Cardiology

Mark Kushner, M.D.

Endocrinology

Julie O'Keefe, M.D.

Gastroenterology

Yvonne Lee, M.D.

Nurse Practitioners

Elaine Louise Cira, C.A.N.P.
Catherine Heilig, C.R.N.P–F, C.D.E.

Certified Physician Assistant

Barbara Patterson, PA-C

Internal Medicine

David Gallatin, M.D. 

Cardiology

Mark Kushner, M.D.

Gastroenterology

Yvonne Bright, M.D.

Office Hours  [Also see Allergy injection hours & info]