Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexandra Williams, RPH

Pharmacist in Madison, WI · enumerated 2019.

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

National Provider Identifier

1588223424

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Registry record

Entity type Individual (Type 1)

Name Alexandra Williams

Credential RPH

Sex Female

Practice address 317 Knutson Dr, Madison, WI, 53704

Phone (608) 301-1946

Enumeration date Jun 12, 2019

Last updated in NPPES Jun 12, 2019

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 11264-40 (WI) Primary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential

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

How do I verify Alexandra Williams's NPI record?

Cross-check NPI 1588223424 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1588223424 active?

Yes, as of the latest NPPES snapshot, NPI 1588223424 is active (record last updated 2019-06-12).

Other providers at this practice address

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Cari Eggert Physical Medicine & Rehabilitation Physician · Madison, WI NPI 1639174782 Donald Carufel-Wert Family Medicine Physician · Madison, WI NPI 1023079811 Ann Heaslett Child & Adolescent Psychiatry Physician · Madison, WI NPI 1467489484 Jeffrey Seltz Pediatric Neurodevelopmental Disabilities Physician · Madison, WI NPI 1851320360 Kimberly Arndt Physical Medicine & Rehabilitation Physician · Madison, WI NPI 1851325435 Jeffrey Knuppel Psychiatry Physician · Madison, WI NPI 1104842988 Kimberly Coplien Physical Therapist · Madison, WI NPI 1881791887 Susan Dempsey Physical Therapist · Madison, WI NPI 1851499495

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-12.