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

Dr. Kourosh Khamooshian, MD

Internal Medicine Physician in La Mesa, CA · enumerated 2008 · practices at Kourosh Khamooshian MD PC.

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

National Provider Identifier

1659523975

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Registry record

Entity type Individual (Type 1)

Name Dr. Kourosh Khamooshian

Credential MD

Sex Male

Practice address La Mesa, CA, 91942

Phone (888) 475-6662

Fax (858) 408-3844

Enumeration date Oct 17, 2008

Last updated in NPPES Jul 1, 2025

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

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License A110901 (CA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A110901 (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
W14158	Other	CA	PTAN
DJ1227	Other	CA	PTAN

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

Where does Kourosh Khamooshian practice?

The practice location on file with NPPES is in La Mesa, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Kourosh Khamooshian?

The National Provider Identifier (NPI) for Kourosh Khamooshian is 1659523975, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Kourosh Khamooshian MD PC Community Health Clinic/Center · La Mesa, CA NPI 1194079632

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-01.