Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William R Collier, MD

Family Medicine Physician in Marion, OH · enumerated 2006.

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

National Provider Identifier

1811953730

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Registry record

Entity type Individual (Type 1)

Name William R Collier

Credential MD

Sex Male

Practice address 1000 Mckinley Park Dr, Marion, OH, 43302

Phone (740) 383-8728

Enumeration date Apr 21, 2006

Last updated in NPPES Dec 29, 2022

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 35.083497 (OH) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 35083497 (OH) Primary

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

Other identifiers

Identifier	Type	State	Issuer
P00217253	Other	OH	RR MEDICARE # BUCYRUS
000000384658	Other	OH	BCBS FOR GALION
000000545410	Other	OH	BCBS MARION
000000362613	Other	OH	BCBS FOR BUCYRUS
P00121199	Other	OH	RR MEDICARE FOR MARION
2557120	Medicaid	OH	-

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

How do I verify William Collier's NPI record?

Cross-check NPI 1811953730 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1811953730 active?

Yes, as of the latest NPPES snapshot, NPI 1811953730 is active (record last updated 2022-12-29).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-29.