Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Allison M Fassett, MD
Psychiatry Physician in Menasha, WI · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1942876008
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Registry record
Entity type Individual (Type 1)
Name Allison M Fassett
Credential MD
Sex Female
Practice address 1095 Midway Rd, Menasha, WI, 54952
Phone (920) 720-2300
Fax (920) 720-3719
Enumeration date May 31, 2021
Last updated in NPPES Jul 17, 2025
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
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
What specialty is Allison Fassett?
Allison Fassett is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Joanna Morgan Counselor · Menasha, WI NPI 1619968773 Michael Griffith Clinical Social Worker · Menasha, WI NPI 1427000991 Sandra Groenewold Psychiatry Physician · Menasha, WI NPI 1881620722 Kristen Owens Mental Health Counselor · Menasha, WI NPI 1093744666 Thedacare, Incorporated Counselor · Menasha, WI NPI 1306959515 Julie Feider Professional Counselor · Menasha, WI NPI 1992802888 Karen Adair Mental Health Counselor · Menasha, WI NPI 1194818344 Tricia Hechimovich Counselor · Menasha, WI NPI 1922182971
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-17.