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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Jeffrey Paul Fennelly, MD

General Practice Physician in Ayer, MA · enumerated 2011.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1760770531

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Registry record

Entity type Individual (Type 1)
Name Dr. Jeffrey Paul Fennelly
Credential MD
Sex Male
Practice address Ayer, MA, 01434
Phone (781) 555-1212
Enumeration date Jul 14, 2011
Last updated in NPPES May 17, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 301389 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Jeffrey Fennelly practice?
The practice location on file with NPPES is in Ayer, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jeffrey Fennelly?
The National Provider Identifier (NPI) for Jeffrey Fennelly is 1760770531, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-17.