Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ruthann M Peck

Physician Assistant in Oshkosh, WI · enumerated 2008.

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

National Provider Identifier

1770746067

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Registry record

Entity type Individual (Type 1)

Name Ruthann M Peck

Sex Female

Practice address 855 N Westhaven Dr, Oshkosh, WI, 54904

Phone (920) 303-8700

Enumeration date Jul 7, 2008

Last updated in NPPES Oct 13, 2023

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 2305 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
43020611	Medicaid	WI	-

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 1770746067 active?

Yes, as of the latest NPPES snapshot, NPI 1770746067 is active (record last updated 2023-10-13).

How do I verify Ruthann Peck's NPI record?

Cross-check NPI 1770746067 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 2023-10-13.