NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Kelsey Ann Madsen, DO

Obstetrics & Gynecology Physician in Phoenix, AZ · enumerated 2016.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1154776375

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Kelsey Ann Madsen
Credential DO
Sex Female
Practice address Phoenix, AZ, 85037
Phone (623) 936-1780
Fax (623) 936-9116
Enumeration date Apr 25, 2016
Last updated in NPPES Mar 6, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 00999 (AZ) Primary
207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License APP-000367459 (OH) Secondary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
249208 Medicaid AZ -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Kelsey Madsen practice?
The practice location on file with NPPES is in Phoenix, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Kelsey Madsen?
The National Provider Identifier (NPI) for Kelsey Madsen is 1154776375, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-06.