Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Jennifer Hartstein, M.D.

Pediatrics Physician in Glendale, CA · enumerated 2006.

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

National Provider Identifier

1548366545

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Registry record

Entity type Individual (Type 1)

Name Mrs. Jennifer Hartstein

Credential M.D.

Sex Female

Practice address 1530 E Chevy Chase Dr, Suite 101, Glendale, CA, 91206

Phone (818) 246-7260

Fax (818) 502-9247

Enumeration date Sep 16, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License A75605 (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

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 Jennifer Hartstein?

Jennifer Hartstein is registered in NPPES with the primary taxonomy of Pediatrics 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 2007-07-08.