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

Dr. Narasimhan Nagan, PH.D., FACMG

Clinical Molecular Genetics Physician in Westborough, MA · enumerated 2007.

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

National Provider Identifier

1952594889

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Registry record

Entity type Individual (Type 1)

Name Dr. Narasimhan Nagan

Credential PH.D., FACMG

Sex Male

Practice address Westborough, MA, 01581

Phone (508) 389-8351

Fax (508) 389-5548

Enumeration date Aug 23, 2007

Last updated in NPPES Aug 23, 2007

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

Taxonomy & licenses

207SG0203X Clinical Molecular Genetics Physician Allopathic & Osteopathic Physicians · License 2005113 (MA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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.

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Frequently asked questions

Is NPI 1952594889 active?

Yes, as of the latest NPPES snapshot, NPI 1952594889 is active (record last updated 2007-08-23).

How do I verify Narasimhan Nagan's NPI record?

Cross-check NPI 1952594889 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 2007-08-23.