Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Robert S Ketchum, PA-C

Individual provider Physician Assistant · NPI 1578702197

Robert S Ketchum, PA-C is a Physician Assistant in Portsmouth, New Hampshire. Qualified in 2008, 18 years ago. Practices with Atlantic Digestive Specialists PLLC, a 17-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
18
Licensed in
NH
In the registry since
2009
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

330 Borthwick Ave Ste 311
Portsmouth, NH 03801-7112
Phone: (603) 692-2228
Fax: (603) 692-4748
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 2194 (NH)

Record details

NPI number1578702197
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedFebruary 5, 2009
Last updated in NPPESMay 16, 2024
Certification dateMay 16, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Atlantic Digestive Specialists Pllc — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Portsmouth