Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Dariush Mozaffarian, M.D. DR.PH.

Specialist in Boston, MA · enumerated 2006.

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

National Provider Identifier

1366473589

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Registry record

Entity type Individual (Type 1)

Name Dr. Dariush Mozaffarian

Credential M.D. DR.PH.

Sex Male

Practice address 665 Huntington Ave Bldg 2-315, Boston, MA, 02115

Phone (617) 432-2887

Fax (617) 432-2435

Enumeration date Jul 5, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 218517 (MA) Primary

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 1366473589 active?

Yes, as of the latest NPPES snapshot, NPI 1366473589 is active (record last updated 2007-07-08).

How do I verify Dariush Mozaffarian's NPI record?

Cross-check NPI 1366473589 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.