NPI Portal NPI Lookup & Verification

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

Mr. Joseph Nassir, MD

Internal Medicine Physician in Huntington Beach, CA · enumerated 2006.

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

National Provider Identifier

1255301024

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Registry record

Entity type Individual (Type 1)
Name Mr. Joseph Nassir
Credential MD
Sex Male
Practice address Huntington Beach, CA, 92647
Phone (714) 843-6800
Fax (714) 847-3480
Enumeration date Jan 25, 2006
Last updated in NPPES Sep 13, 2017

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A52865 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

What is the NPI number for Joseph Nassir?
The National Provider Identifier (NPI) for Joseph Nassir is 1255301024, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joseph Nassir practice?
The practice location on file with NPPES is in Huntington Beach, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-09-13.