Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Watson Webb, M.D., PH D

Q: What is the NPI number for William Webb?

The National Provider Identifier (NPI) for William Webb is 1790740603, a Type 1 (individual) record in the CMS NPPES registry.

Gastroenterology Physician in Portage, MI · enumerated 2006.

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

National Provider Identifier

1790740603

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Registry record

Entity type Individual (Type 1)

Name William Watson Webb

Credential M.D., PH D

Sex Male

Practice address 3304 Cooley Court, Portage, MI, 49024

Phone (269) 349-2266

Fax (269) 349-0792

Enumeration date Apr 20, 2006

Last updated in NPPES Nov 27, 2023

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License WW054328 (MI) 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
1790740603	Other	MI	NPI
4307839	Other	MI	KALAMAZOO COUNTY HEALTH PLAN
0M92920007	Other	MI	MEDICARE
123693	Other	MI	GREAT LAKES HEALTH PLAN
1790740603	Medicaid	MI	-
100C914640	Other	MI	BCBS 04/25/2008 AND AFTER
104307839	Medicaid	MI	-
383309299059	Other	MI	CARESOURCE MEDICAID
100C910690	Other	MI	BLUE CROSS BLUE SHIELD
1417961137	Other	MI	BCBSM - BRONSON
0P56360003	Other	MI	MEDICARE 04/25/2008
1851569958	Other	MI	GROUP NPI 04/25/2008 AND AFTER

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 Webb practice?

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

What is the NPI number for William Webb?

The National Provider Identifier (NPI) for William Webb is 1790740603, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-27.