Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Aaron Alexander Koerten, PA-C
Physician Assistant in Madison, WI · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1275040784
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Registry record
Entity type Individual (Type 1)
Name Mr. Aaron Alexander Koerten
Credential PA-C
Sex Male
Practice address 1821 S Stoughton Rd, Madison, WI, 53716
Phone (608) 260-6000
Fax (608) 260-6451
Enumeration date Jan 5, 2018
Last updated in NPPES Dec 27, 2020
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 50.005381RX (OH) Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 5208 (WI) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1275040784 | 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
How do I verify Aaron Koerten's NPI record?
Cross-check NPI 1275040784 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1275040784 active?
Yes, as of the latest NPPES snapshot, NPI 1275040784 is active (record last updated 2020-12-27).
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-27.