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

Dr. William G Sprake, MD

Gynecology Physician in Olympia, WA · enumerated 2006.

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

National Provider Identifier

1215946231

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. William G Sprake

Credential MD

Sex Male

Practice address Olympia, WA, 98502

Phone (360) 754-0660

Fax (360) 754-0137

Enumeration date Aug 7, 2006

Last updated in NPPES Mar 19, 2015

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

Taxonomy & licenses

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License MD00023744 (WA) 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
8273856	Medicaid	WA	-
A08679	Medicaid	WA	-

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 Sprake practice?

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

What is the NPI number for William Sprake?

The National Provider Identifier (NPI) for William Sprake is 1215946231, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-19.