Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Peggy Ann Williamson, APN, CNM

Obstetrics & Gynecology Nurse Practitioner in Reno, NV · enumerated 2006.

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

National Provider Identifier

1336152040

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Registry record

Entity type Individual (Type 1)

Name Mrs. Peggy Ann Williamson

Credential APN, CNM

Sex Female

Practice address 975 Ryland, Suite 105, Reno, NV, 89502

Phone (775) 982-5640

Fax (775) 982-5724

Enumeration date Aug 14, 2006

Last updated in NPPES Feb 21, 2013

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NV APN 275 (NV) Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License APN00275 (NV) Secondary

363LX0001X Obstetrics & Gynecology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APN00275 (NV) Primary

CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM credential

Other identifiers

Identifier	Type	State	Issuer
1336152040	Medicaid	NV	-
11974226	Other	-	CAQH

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

How do I verify Peggy Williamson's NPI record?

Cross-check NPI 1336152040 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1336152040 active?

Yes, as of the latest NPPES snapshot, NPI 1336152040 is active (record last updated 2013-02-21).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-21.