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

William Andre Silva, M.D.

Obstetrics & Gynecology Physician in Mount Vernon, WA · enumerated 2006.

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

National Provider Identifier

1861413965

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Registry record

Entity type Individual (Type 1)

Name William Andre Silva

Credential M.D.

Sex Male

Practice address Mount Vernon, WA, 98273

Phone (605) 885-5703

Fax (360) 588-5562

Enumeration date Jul 22, 2006

Last updated in NPPES Feb 18, 2026

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

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License MD00044925 (WA) Secondary

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License MD00044925 (WA) Secondary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License MD00044925 (WA) Primary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License MD00044925 (WA) Secondary

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
0307100	Other	WA	L&I
1205015112	Other	-	TYPE 2 (GROUP/ORGANIZATIONAL) NPI
G8917673	Other	WA	MEDICARE PTAN FOR GROUP (ARLINGTON, WA)
G8917674	Other	WA	MEDICARE PTAN FOR INDIVIDUAL (ARLINGTON, WA)
1205015112	Other	WA	MEDICAID BILLING PROVIDER #
1861413965	Other	WA	MEDICAID RENDERING PROVIDER #
1020741	Medicaid	WA	-
1861413965	Other	-	TYPE 1 (INDIVIDUAL) NPI
2025944	Other	WA	PROVIDER ONE # (LINKED TO TYPE 2 NPI)

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is William Silva?

William Silva is registered in NPPES with the primary taxonomy of Obstetrics & Gynecology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Barbara Pringle Specialist · Mount Vernon, WA NPI 1437214913 Robert Pringle Specialist · Mount Vernon, WA NPI 1740345123 Sea Mar Community Health Centers Federally Qualified Health Center (FQHC) · Mount Vernon, WA NPI 1023247541 Notie Erhahon Pediatrics Physician · Mount Vernon, WA NPI 1538457007 Elvia Zavala-Suarez Counselor · Mount Vernon, WA NPI 1225559271 Sea Mar Community Health Centers Federally Qualified Health Center (FQHC) · Mount Vernon, WA NPI 1083127492

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-18.