HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / NH

ROBERT KETCHUM

PHYSICIAN ASSISTANT

Graduated: 2008

NPI: 1578702197

Practice Locations (3)

ATLANTIC DIGESTIVE SPECIALISTS PLLC

330 BORTHWICK AVE, SUITE 300

PORTSMOUTH, NH 038017109

6036922228

ATLANTIC DIGESTIVE SPECIALISTS PLLC

330 BORTHWICK AVE, SUITE 311

PORTSMOUTH, NH 038017112

6034332488

ATLANTIC DIGESTIVE SPECIALISTS PLLC

21 CLARK WAY

SOMERSWORTH, NH 038784401

6036922228

Source: CMS National Downloadable File, September 2026.

ROBERT KETCHUM | HealthCareAtlasUSA