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Doctors / PA

MARTEN B DUNCAN, DO

GASTROENTEROLOGY

Medical school: COLLEGE OF OSTEO MED OF THE PACIFIC AT POMONA

Graduated: 1998

NPI: 1215037312

Practice Locations (4)

GEISINGER CLINIC

100 N ACADEMY AVE

DANVILLE, PA 178229800

5702716144

GEISINGER CLINIC

310 ELECTRIC AVE, 240 GEISINGER ORTHOPAEDIC INSTITUTE L

LEWISTOWN, PA 170441369

7172428124

GEISINGER CLINIC

400 HIGHLAND AVE

LEWISTOWN, PA 170441167

7173639071

GEISINGER CLINIC

132 ABIGAIL LN

PORT MATILDA, PA 168707153

8142727100

Source: CMS National Downloadable File, September 2026.

MARTEN DUNCAN, DO | HealthCareAtlasUSA