Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Peter C. Wonder, NP

Nurse Practitioner in Modesto, CA · enumerated 2006.

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

National Provider Identifier

1285741991

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Peter C. Wonder

Credential NP

Sex Male

Practice address 1700 Coffee Road, Modesto, CA, 95355

Phone (209) 526-4500

Enumeration date Aug 25, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP4766 (CA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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 1285741991 active?

Yes, as of the latest NPPES snapshot, NPI 1285741991 is active (record last updated 2007-07-08).

How do I verify Peter Wonder's NPI record?

Cross-check NPI 1285741991 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Roxanne Garbez Nurse Practitioner · Modesto, CA NPI 1770690612 Scott Oslund Emergency Medicine Physician · Modesto, CA NPI 1902913858 David Paradis Emergency Medicine Physician · Modesto, CA NPI 1457468266 Terence Sweeney Emergency Medicine Physician · Modesto, CA NPI 1285741959 Susan Simon Nurse Practitioner · Modesto, CA NPI 1033226774 Donald Zweig Emergency Medicine Physician · Modesto, CA NPI 1942317706 Keith Hughes Emergency Medicine Physician · Modesto, CA NPI 1295844850 Sutter Emergency Medical Associates Emergency Medicine Physician · Modesto, CA NPI 1588756258

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