Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gregory Mayzus, PA
Physician Assistant in Elkhorn, WI · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1851164891
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Registry record
Entity type Individual (Type 1)
Name Gregory Mayzus
Credential PA
Sex Male
Practice address W3985 County Road Nn, Elkhorn, WI, 53121
Phone (262) 741-2000
Enumeration date Nov 1, 2023
Last updated in NPPES Nov 28, 2023
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 7477 (WI) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program.
About the PA credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100257455 | 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
Where does Gregory Mayzus practice?
The practice location on file with NPPES is in Elkhorn, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gregory Mayzus?
The National Provider Identifier (NPI) for Gregory Mayzus is 1851164891, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-28.