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

Dr. David Berger, MD

Endocrinology, Diabetes & Metabolism Physician in Downey, CA · enumerated 2005.

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

National Provider Identifier

1881683944

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Registry record

Entity type Individual (Type 1)

Name Dr. David Berger

Credential MD

Sex Male

Practice address Downey, CA, 90241

Phone (562) 861-0336

Fax (562) 923-7941

Enumeration date Oct 20, 2005

Last updated in NPPES Apr 16, 2010

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 G27322 (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 David Berger?

David Berger 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.

Other providers at this practice address

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Alexander Vargas Specialist · Downey, CA NPI 1356332936 Mauro Janoski Hematology & Oncology Physician · Downey, CA NPI 1154386290 Gaurang Chaurushia Gastroenterology Physician · Downey, CA NPI 1538126131 Mark Minkes Surgery Physician · Downey, CA NPI 1629027289 Jennifer Estrella Nurse Practitioner · Downey, CA NPI 1821048083 Robert Deere Surgery Physician · Downey, CA NPI 1649221060 Bala Venugopal Pediatrics Physician · Downey, CA NPI 1952352734 Frischer Medical Group Inc Internal Medicine Physician · Downey, CA NPI 1659328797

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-04-16.