NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Peter J Dain, M.D.

Internal Medicine Physician in Uxbridge, MA · enumerated 2006 · practices at Tri River Family Health Center.

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

National Provider Identifier

1043275902

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Registry record

Entity type Individual (Type 1)
Name Dr. Peter J Dain
Credential M.D.
Sex Male
Practice address 281 E Hartford Ave, Uxbridge, MA, 01569
Phone (508) 278-5573
Fax (508) 278-0347
Enumeration date Apr 20, 2006
Last updated in NPPES Apr 30, 2010

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 155744 (MA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
3173739 Medicaid MA -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Peter Dain?
Peter Dain is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-04-30.