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

Dr. Na Shen, M.D.

Endocrinology, Diabetes & Metabolism Physician in Thousand Oaks, CA · enumerated 2009 · practices at The Regents of the University of California.

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

National Provider Identifier

1225268824

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Registry record

Entity type Individual (Type 1)

Name Dr. Na Shen

Credential M.D.

Sex Female

Practice address Thousand Oaks, CA, 91360

Phone (805) 418-3500

Enumeration date Jul 17, 2009

Last updated in NPPES Dec 20, 2024

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

Taxonomy & licenses

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License A116462 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Na Shen?

Na Shen is registered in NPPES with the primary taxonomy of Endocrinology, Diabetes & Metabolism 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 2024-12-20.