Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carol J Knowlton, M.D.

Family Medicine Physician in Olympia, WA · enumerated 2006.

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

National Provider Identifier

1023103348

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Registry record

Entity type Individual (Type 1)

Name Dr. Carol J Knowlton

Credential M.D.

Sex Female

Practice address 3000 Limited Lane Nw, Olympia, WA, 98502

Phone (360) 357-9392

Fax (360) 357-9392

Enumeration date Oct 3, 2006

Last updated in NPPES Oct 25, 2016

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD00024444 (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
0156219	Other	WA	LABOR & INDUSTRY
128044	Other	WA	LABOR & INDUSTRY
1108588	Medicaid	WA	-
8240541	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

What is the NPI number for Carol Knowlton?

The National Provider Identifier (NPI) for Carol Knowlton is 1023103348, a Type 1 (individual) record in the CMS NPPES registry.

Where does Carol Knowlton practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-25.