Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ida G Leong, M.D.

General Practice Physician in Santa Cruz, CA · enumerated 2005.

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

National Provider Identifier

1447243365

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Registry record

Entity type Individual (Type 1)

Name Dr. Ida G Leong

Credential M.D.

Sex Female

Practice address 320 River St, Santa Cruz, CA, 95060

Phone (831) 272-4324

Fax (831) 457-2328

Enumeration date Aug 25, 2005

Last updated in NPPES Jul 13, 2026

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License C38441 (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
C38441	Other	CA	Medical License No.

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 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.

What specialty is Ida Leong?

Ida Leong is registered in NPPES with the primary taxonomy of General Practice Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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