Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Ellen Williams, NP-C

Nurse Practitioner in Casper, WY · enumerated 2010 · practices at Central Wyoming Urological Associates, PC.

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

National Provider Identifier

1972803013

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mary Ellen Williams

Credential NP-C

Sex Female

Practice address 1416 E A St, S 101, Casper, WY, 82601

Phone (307) 577-8600

Fax (307) 577-8605

Enumeration date Oct 22, 2010

Last updated in NPPES Nov 15, 2010

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 8993-1079 (WY) Primary

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 1972803013 active?

Yes, as of the latest NPPES snapshot, NPI 1972803013 is active (record last updated 2010-11-15).

How do I verify Mary Williams's NPI record?

Cross-check NPI 1972803013 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 →

John Jones Urology Physician · Casper, WY NPI 1275592024 Central Wyoming Urological Associates, PC Urology Physician · Casper, WY NPI 1720009749 Henry Gottsch Urology Physician · Casper, WY NPI 1831209253 Chad Sundquist Physician Assistant · Casper, WY NPI 1023199221

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-15.