Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Marjorie Ann Willett, APNP
Nurse Practitioner in Elkhorn, WI · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598996258
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Registry record
Entity type Individual (Type 1)
Name Mrs. Marjorie Ann Willett
Credential APNP
Sex Female
Practice address W3985 County Road Nn, Elkhorn, WI, 53121
Phone (262) 741-2380
Enumeration date Jul 29, 2009
Last updated in NPPES Oct 19, 2023
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 3813-33 (WI) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100005788 | 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
What is the NPI number for Marjorie Willett?
The National Provider Identifier (NPI) for Marjorie Willett is 1598996258, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marjorie Willett practice?
The practice location on file with NPPES is in Elkhorn, WI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Abdullah Fayyad Gastroenterology Physician · Elkhorn, WI NPI 1568466019 Dilip Patel Emergency Medicine Physician · Elkhorn, WI NPI 1144204264 Michele Stueve Physical Medicine & Rehabilitation Physician · Elkhorn, WI NPI 1477526887 Peter Diamond Cardiovascular Disease Physician · Elkhorn, WI NPI 1730126954 Aurora Pharmacy Inc Clinic Pharmacy · Elkhorn, WI NPI 1700810926 Paul Angermeier Anatomic Pathology & Clinical Pathology Physician · Elkhorn, WI NPI 1417982836 Midwest Emergency Associates - Lakeland, Sc Emergency Medicine Physician · Elkhorn, WI NPI 1407871155 Jeffrey Tiemstra Family Medicine Physician · Elkhorn, WI NPI 1336252238
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-19.