Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jacob A Rosenberg, MD

Pain Medicine Physician in Walnut Creek, CA · enumerated 2005.

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

National Provider Identifier

1275537870

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Registry record

Entity type Individual (Type 1)

Name Jacob A Rosenberg

Credential MD

Sex Male

Practice address 450 N Wiget Ln, Walnut Creek, CA, 94598

Phone (925) 691-9806

Fax (925) 691-9807

Enumeration date Jun 10, 2005

Last updated in NPPES Aug 6, 2009

Taxonomy & licenses

208VP0000X Pain Medicine Physician Allopathic & Osteopathic Physicians · License C41230 (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 is the NPI number for Jacob Rosenberg?

The National Provider Identifier (NPI) for Jacob Rosenberg is 1275537870, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jacob Rosenberg practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-08-06.