NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Douglas Charles Peterson, MD

General Practice Physician in Elk Grove, CA · enumerated 2007.

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

National Provider Identifier

1174739288

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Douglas Charles Peterson
Credential MD
Sex Male
Practice address 9260 Laguna Springs Dr, Suite E2-308, Elk Grove, CA, 95758
Enumeration date May 15, 2007
Last updated in NPPES Apr 22, 2013

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License G42408 (CA) Secondary
208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License G42408 (CA) Primary
209800000X Legal Medicine (M.D./D.O.) Physician Allopathic & Osteopathic Physicians · License G42408 (CA) Secondary
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 Douglas Peterson?
The National Provider Identifier (NPI) for Douglas Peterson is 1174739288, a Type 1 (individual) record in the CMS NPPES registry.
Where does Douglas Peterson practice?
The practice location on file with NPPES is in Elk Grove, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-22.