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

Mr. Gregory M McCarthy, MD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1942393525

Mr. Gregory M McCarthy, MD is a Gastroenterology in Manchester, New Hampshire. Qualified in 1980, 46 years ago. Practices with Elliot Professional Services, a 424-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Colorado and New Hampshire.

Years since qualifying
46
Licensed in
CO, NH
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

100 Hitchcock Way
Manchester, NH 03104-4125
Phone: (603) 695-2500
Fax: (603) 369-6365
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2030 Mountain View Ave, Longmont, CO 80501-3178 — (720) 652-8650

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 7256 (NH)
Geriatric Medicine (Internal Medicine) Physician Taxonomy 207RG0300X · Licence CDR.0000643 (CO)
Gastroenterology Physician Taxonomy 207RG0100X · Licence CDR.0000643 (CO)

Record details

NPI number1942393525
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 2, 2006
Last updated in NPPESAugust 19, 2022
Certification dateAugust 17, 2022
Mailing address100 Hitchcock Way, Manchester, NH 03104-4125

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1980 (46 years in practice)
Group practice Elliot Professional Services — 424 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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