Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christopher Joseph Cosgrove, MD

Nephrology Physician in East Providence, RI · enumerated 2005.

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

National Provider Identifier

1558344085

Verified

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Registry record

Entity type Individual (Type 1)

Name Christopher Joseph Cosgrove

Credential MD

Sex Male

Practice address 318 Waterman Ave, East Providence, RI, 02914

Phone (401) 438-5950

Fax (401) 435-2561

Enumeration date Nov 29, 2005

Last updated in NPPES Oct 29, 2009

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 213611 (MA) Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 10940 (RI) 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
110007969A	Medicaid	MA	-
3100312	Other	-	UNITED
420927-002	Other	-	CIGNA
J25095	Other	MA	BLUE CROSS
390008342	Other	-	RAILROAD MEDICARE
1354076	Other	RI	AETNA
7009941	Medicaid	RI	-
10941	Other	RI	BLUE CROSS
10318	Other	-	HARVARD PILGRIM
27913	Other	-	NEIGHBORHOOD
409631	Other	RI	BLUE CHIP
010940	Other	-	TOFTS

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

Is NPI 1558344085 active?

Yes, as of the latest NPPES snapshot, NPI 1558344085 is active (record last updated 2009-10-29).

How do I verify Christopher Cosgrove's NPI record?

Cross-check NPI 1558344085 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-29.