Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Dennis Michael Styne, M.D.

Pediatric Endocrinology Physician in Sacramento, CA · enumerated 2005.

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

National Provider Identifier

1023093499

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Registry record

Entity type Individual (Type 1)

Name Dr. Dennis Michael Styne

Credential M.D.

Sex Male

Practice address 2516 Stockton Blvd, Sacramento, CA, 95817

Phone (916) 734-0129

Fax (916) 734-7070

Enumeration date Dec 8, 2005

Last updated in NPPES Dec 2, 2011

Taxonomy & licenses

2080P0205X Pediatric Endocrinology Physician Allopathic & Osteopathic Physicians · License G23965 (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

Is NPI 1023093499 active?

Yes, as of the latest NPPES snapshot, NPI 1023093499 is active (record last updated 2011-12-02).

How do I verify Dennis Styne's NPI record?

Cross-check NPI 1023093499 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-02.