Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hayat Mousa, MD

Pediatric Gastroenterology Physician in San Diego, CA · enumerated 2005.

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

National Provider Identifier

1821083338

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Registry record

Entity type Individual (Type 1)

Name Hayat Mousa

Credential MD

Sex Female

Practice address 8110 Birmingham Way, San Diego, CA, 92123

Phone (858) 966-4003

Enumeration date Sep 12, 2005

Last updated in NPPES May 3, 2017

Taxonomy & licenses

2080P0206X Pediatric Gastroenterology Physician Allopathic & Osteopathic Physicians · License 35065608 (OH) Secondary

2080P0206X Pediatric Gastroenterology Physician Allopathic & Osteopathic Physicians · License C 137969 (CA) 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
0108724000	Medicaid	WV	-
0932772	Medicaid	OH	-
64964240	Medicaid	KY	-
MO0890502	Other	OH	MEDICARE

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

What specialty is Hayat Mousa?

Hayat Mousa is registered in NPPES with the primary taxonomy of Pediatric Gastroenterology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-03.