Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Rasmussen, MD

Pediatric Nephrology Physician in Dexter, MI · enumerated 2018.

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

National Provider Identifier

1487141255

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Registry record

Entity type Individual (Type 1)

Name William Rasmussen

Credential MD

Sex Male

Practice address 7425 Ann Arbor St, Dexter, MI, 48130

Phone (616) 648-6425

Enumeration date Apr 17, 2018

Last updated in NPPES Jul 12, 2022

Taxonomy & licenses

2080P0210X Pediatric Nephrology Physician Allopathic & Osteopathic Physicians · License 4301506563 (MI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does William Rasmussen practice?

The practice location on file with NPPES is in Dexter, MI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for William Rasmussen?

The National Provider Identifier (NPI) for William Rasmussen is 1487141255, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-12.