Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Diane Marie Willman, PA
Physician Assistant in Lansing, MI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821022195
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Registry record
Entity type Individual (Type 1)
Name Diane Marie Willman
Credential PA
Sex Female
Practice address 401 W Greenlawn Ave, Lansing, MI, 48910
Phone (517) 975-9500
Fax (517) 975-9511
Enumeration date Jul 10, 2006
Last updated in NPPES Jun 8, 2016
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 5601003309 (MI) 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 |
|---|---|---|---|
| 1821022195 | Medicaid | MI | - |
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 Diane Willman practice?
The practice location on file with NPPES is in Lansing, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Diane Willman?
The National Provider Identifier (NPI) for Diane Willman is 1821022195, 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 2016-06-08.