Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William D Tressel, D.O.

Emergency Medicine Physician in Wyoming, MI · enumerated 2008.

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

National Provider Identifier

1174785505

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Registry record

Entity type Individual (Type 1)

Name Dr. William D Tressel

Credential D.O.

Sex Male

Practice address 5900 Byron Center Ave Sw, Wyoming, MI, 49519

Phone (616) 252-7200

Enumeration date Jun 26, 2008

Last updated in NPPES Feb 27, 2026

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 34C.000334 (OH) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License W1698 (TX) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License C5090 (KY) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License OP61492300 (WA) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 23020 (FL) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 010702 (AZ) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 2601946 (MI) Primary

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

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.

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Frequently asked questions

Is NPI 1174785505 active?

Yes, as of the latest NPPES snapshot, NPI 1174785505 is active (record last updated 2026-02-27).

How do I verify William Tressel's NPI record?

Cross-check NPI 1174785505 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-27.