Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William T. Stephenson II, M.D.

Medical Oncology Physician in Provo, UT · enumerated 2006.

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

National Provider Identifier

1093787541

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Registry record

Entity type Individual (Type 1)

Name William T. Stephenson II

Credential M.D.

Sex Male

Practice address 395 W Bulldog Blvd Ste 103, Provo, UT, 84604

Phone (801) 357-8200

Fax (801) 357-8201

Enumeration date Feb 7, 2006

Last updated in NPPES Jan 24, 2020

Taxonomy & licenses

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 274407-1205 (UT) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 108812 (MO) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 04-25846 (KS) Secondary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 274407-1205 (UT) 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

Is NPI 1093787541 active?

Yes, as of the latest NPPES snapshot, NPI 1093787541 is active (record last updated 2020-01-24).

How do I verify William Stephenson's NPI record?

Cross-check NPI 1093787541 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-24.