Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Martin A Weinstock, MD,PHD

Dermatology Physician in Providence, RI · enumerated 2006.

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

National Provider Identifier

1295776870

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Registry record

Entity type Individual (Type 1)

Name Dr. Martin A Weinstock

Credential MD,PHD

Sex Male

Practice address 593 Eddy St, Apc#10, Providence, RI, 02903

Phone (401) 444-7959

Fax (401) 444-7144

Enumeration date Jun 8, 2006

Last updated in NPPES Jul 10, 2007

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD7404 (RI) Primary

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD54155 (MA) Secondary

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
709004108	Other	RI	GROUP MEDICARE
9006476	Medicaid	RI	-

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 Martin Weinstock?

The National Provider Identifier (NPI) for Martin Weinstock is 1295776870, a Type 1 (individual) record in the CMS NPPES registry.

Where does Martin Weinstock practice?

The practice location on file with NPPES is in Providence, RI. 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 2007-07-10.