Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Glenn Zeleznick, DDS

General Practice Physician in Rolling Hills Estates, CA · enumerated 2006.

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

National Provider Identifier

1538233606

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Registry record

Entity type Individual (Type 1)

Name Dr. Glenn Zeleznick

Credential DDS

Sex Male

Practice address 927 Deep Valley Drive, Suite 265, Rolling Hills Estates, CA, 90274

Phone (310) 377-5538

Enumeration date Nov 20, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License DU35464 (CA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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 is the NPI number for Glenn Zeleznick?

The National Provider Identifier (NPI) for Glenn Zeleznick is 1538233606, a Type 1 (individual) record in the CMS NPPES registry.

Where does Glenn Zeleznick practice?

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

Other providers at this practice address

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Robert Borodkin Psychiatry Physician · Rolling Hills Estates, CA NPI 1700944600 Hendrik Baars Dentist · Rolling Hills Estates, CA NPI 1063624567

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.