Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katherine Williams, RDMS, RVT

Sonography Radiologic Technologist in Saint Paul, MN · enumerated 2013.

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

National Provider Identifier

1215366745

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Registry record

Entity type Individual (Type 1)

Name Katherine Williams

Credential RDMS, RVT

Sex Female

Practice address 1414 Maryland Ave E, Saint Paul, MN, 55106

Phone (651) 772-3461

Enumeration date Nov 5, 2013

Last updated in NPPES Nov 5, 2013

Taxonomy & licenses

2471S1302X Sonography Radiologic Technologist Technologists, Technicians & Other Technical Service Providers 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 1215366745 active?

Yes, as of the latest NPPES snapshot, NPI 1215366745 is active (record last updated 2013-11-05).

How do I verify Katherine Williams's NPI record?

Cross-check NPI 1215366745 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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Kevin Peterson Family Medicine Physician · Minneapolis, MN NPI 1558327064 Craig Svendsen Family Medicine Physician · Saint Paul, MN NPI 1427016229 John Halvorsen Family Medicine Physician · St. Paul, MN NPI 1104830595 Angela Smithson Family Medicine Physician · St. Paul, MN NPI 1093721771 Tai Mendenhall Marriage & Family Therapist · Saint Paul, MN NPI 1346356938 Curtis Keller Family Medicine Physician · Saint Paul, MN NPI 1114087608 Louise Mattson Family Medicine Physician · Saint Paul, MN NPI 1710040522 Will Nicholson Family Medicine Physician · Saint Paul, MN NPI 1881808780

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-05.