Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Katherine Ann Mayer, MSE
Counselor in Menasha, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1861577454
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Registry record
Entity type Individual (Type 1)
Name Katherine Ann Mayer
Credential MSE
Sex Female
Practice address 1810 Appleton Road, Menasha, WI, 54952
Phone (920) 739-4226
Fax (920) 739-7639
Enumeration date Oct 25, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 40975600 | 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.
Frequently asked questions
How do I verify Katherine Mayer's NPI record?
Cross-check NPI 1861577454 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1861577454 active?
Yes, as of the latest NPPES snapshot, NPI 1861577454 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all → Karen Schmidt Case Manager/Care Coordinator · Menasha, WI NPI 1366527947 Michael Steger Counselor · Menasha, WI NPI 1942385539 Julie Janus Social Worker · Menasha, WI NPI 1164507760 Matthew Czerwan Case Manager/Care Coordinator · Menasha, WI NPI 1245315837 Dawn Butzin Counselor · Menasha, WI NPI 1356426951 Kirk Rattray Social Worker · Menasha, WI NPI 1841375433 Melissa Chavas Social Worker · Menasha, WI NPI 1316022916 Gary Nack Counselor · Menasha, WI NPI 1487739074
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.