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

Dr. Barry S Friedman, OD

Optometrist in Rockland, MA · enumerated 2006.

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

National Provider Identifier

1376523100

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Registry record

Entity type Individual (Type 1)

Name Dr. Barry S Friedman

Credential OD

Sex Male

Practice address Rockland, MA, 02370

Phone (781) 878-6962

Fax (781) 878-7131

Enumeration date Jan 18, 2006

Last updated in NPPES Dec 8, 2008

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2274 (MA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
0031474	Other	MA	NHP
15285	Other	MA	HPHC
2573962	Other	MA	AETNA
0305707	Medicaid	MA	-
2200914	Other	MA	UNHC
718989	Other	MA	TUFTS
W15782	Other	MA	BCBS

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

How do I verify Barry Friedman's NPI record?

Cross-check NPI 1376523100 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1376523100 active?

Yes, as of the latest NPPES snapshot, NPI 1376523100 is active (record last updated 2008-12-08).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-08.