Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Allison Swiertz
Nurse Practitioner in Madison, WI · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033635602
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Registry record
Entity type Individual (Type 1)
Name Allison Swiertz
Sex Female
Practice address 600 Highland Ave, Madison, WI, 53792
Phone (608) 263-1690
Fax (608) 265-1918
Enumeration date Aug 16, 2017
Last updated in NPPES Jan 13, 2021
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 7859 (WI) Primary
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 Swiertz?
Allison Swiertz is registered in NPPES with the primary taxonomy of Nurse Practitioner. 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 → Christina Morganti Orthopaedic Surgery Physician · Madison, WI NPI 1245232420 Janet Robillard Medical Physician Assistant · Madison, WI NPI 1659375046 Chris Konstantinou Cardiovascular Disease Physician · Madison, WI NPI 1346246162 Susan Rebsamen Neuroradiology Physician · Madison, WI NPI 1871590422 Dan Gralnek Urology Physician · Madison, WI NPI 1811995319 Yonker Wang Diagnostic Radiology Physician · Madison, WI NPI 1033117494 Frederick Heiden Anesthesiology Physician · Madison, WI NPI 1982603957 Dawn Ledbetter Anesthesiology Physician · Madison, WI NPI 1750381323
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-13.