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

Dr. Peter T Demos, M.D.

Q: What is the NPI number for Peter Demos?

The National Provider Identifier (NPI) for Peter Demos is 1619977402, a Type 1 (individual) record in the CMS NPPES registry.

Dermatology Physician in Springfield, MA · enumerated 2005.

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

National Provider Identifier

1619977402

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Registry record

Entity type Individual (Type 1)

Name Dr. Peter T Demos

Credential M.D.

Sex Male

Practice address Springfield, MA, 01103

Phone (413) 739-6611

Enumeration date Jul 22, 2005

Last updated in NPPES Dec 25, 2021

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

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 58416 (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
J06761	Other	MA	PROVIDER NUMBER
11753	Other	MA	HNE PROVIDER NUMBER
725076	Other	MA	TUFTS PROVIDER NUMBER

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 is the NPI number for Peter Demos?

The National Provider Identifier (NPI) for Peter Demos is 1619977402, a Type 1 (individual) record in the CMS NPPES registry.

Where does Peter Demos practice?

The practice location on file with NPPES is in Springfield, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-25.