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Mr. Linn Douglas Williamson

Marriage & Family Therapist in Cameron Park, CA · enumerated 2007 · practices at Sierra Recovery Solutions.

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

National Provider Identifier

1003939075

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Registry record

Entity type Individual (Type 1)
Name Mr. Linn Douglas Williamson
Sex Male
Practice address Cameron Park, CA, 95682
Phone (530) 306-4700
Enumeration date Apr 6, 2007
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MFT 022607 (CA) Primary

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

Where does Linn Williamson practice?
The practice location on file with NPPES is in Cameron Park, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Linn Williamson?
The National Provider Identifier (NPI) for Linn Williamson is 1003939075, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.