Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. William Michael Harris, DO

Internal Medicine Physician in Chesapeake, WV · enumerated 2005.

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

National Provider Identifier

1891772802

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Registry record

Entity type Individual (Type 1)

Name Dr. William Michael Harris

Credential DO

Sex Male

Practice address Chesapeake, WV, 25315

Phone (304) 220-2111

Fax (304) 220-2183

Enumeration date Dec 30, 2005

Last updated in NPPES Jun 18, 2019

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 1320 (WV) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 1320 (WV) 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

Other identifiers

Identifier	Type	State	Issuer
001316637	Other	WV	WV BCBS
P00030193	Other	WV	CH1 RAILROAD MEDICARE
1056879	Other	WV	WV DWC
5530031	Other	WV	AETNA
P00059183	Other	WV	CH2 RAILROAD MEDICARE
0077610000	Medicaid	WV	-

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 Harris's NPI record?

Cross-check NPI 1891772802 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1891772802 active?

Yes, as of the latest NPPES snapshot, NPI 1891772802 is active (record last updated 2019-06-18).

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Laurie Jones Adult Health Nurse Practitioner · Charleston, WV NPI 1073737714 Kathleen Warner Mental Health Counselor · Chesapeake, WV NPI 1407178809 Joshua Shrewsbery Family Nurse Practitioner · Chesapeake, WV NPI 1144561432 Penny Ramsey Gerontology Nurse Practitioner · Chesapeake, WV NPI 1801396981 Chesapeake Healthcare Center Clinic/Center · Chesapeake, WV NPI 1790279651 Chesapeake Healthcare Center Addiction Medicine (Family Medicine) Physician · Chesapeake, WV NPI 1083249825 Christina Garris Addiction (Substance Use Disorder) Counselor · Chesapeake, WV NPI 1447108352

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-18.