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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sandra A. Hollenberg, M.D.

Pediatrics Physician in Pomona, CA · enumerated 2006.

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

National Provider Identifier

1457322430

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Registry record

Entity type Individual (Type 1)
Name Dr. Sandra A. Hollenberg
Credential M.D.
Sex Female
Practice address 250 W Bonita Ave, #200, Pomona, CA, 91767
Phone (909) 629-5067
Fax (909) 865-7688
Enumeration date Jan 30, 2006
Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License G43388 (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
129895 Other CA AAP #

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

How do I verify Sandra Hollenberg's NPI record?
Cross-check NPI 1457322430 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1457322430 active?
Yes, as of the latest NPPES snapshot, NPI 1457322430 is active (record last updated 2023-03-07).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.