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SERENITY KNOLLS
NPI 1831337534
Substance Abuse Rehabilitation Facility in Forest Knolls, CA

Active since February 03, 2009CLIA 05D2212182 · Waiver
145 TAMAL ROAD, FOREST KNOLLS, CA 94933(415) 488-0400(415) 488-1955 Get Directions Write a Review

NPPES record last updated: January 6, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 6, 2026, Oct 15, 2018 (2 updates tracked since 2018).

About Serenity Knolls NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SERENITY KNOLLS (NPI 1831337534) is a healthcare organization registered as a substance abuse rehabilitation facility in Forest Knolls, California and active in the NPI registry since February 2009. The organization holds a CLIA Waiver certificate valid through February 2, 2027 and lists Brian Farley, Vice President & Secretary, as its authorized official.

NPPES Registry Identity

NPI1831337534
Entity TypeOrganization
Primary Taxonomy324500000X
Legal Business NameSERENITY KNOLLS
Location Address145 TAMAL ROADForest Knolls, CA 94933
Mailing Address4020 Aspen Grove Dr Ste 900Franklin, TN 37067-3134 · (615) 861-6000
Phone(415) 488-0400
Fax(415) 488-1955
Organization SubpartNo
Authorized OfficialBrian FarleyVice President & Secretary · (615) 861-6000
Enumeration DateFebruary 3, 2009
Last NPPES UpdateJanuary 6, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 6, 2026
✔ NPI 1831337534 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySubstance Abuse Rehabilitation FacilityResidential Treatment Facilities
Taxonomy Code324500000X
License✔ Licensed in CA · 210011AP
Definition
A facility or distinct part of a facility that provides a 24 hr therapeutically planned living and rehabilitative intervention environment for the treatment of individuals with disorders in the abuse of drugs, alcohol, and other substances.
145 TAMAL ROAD, Forest Knolls, CA 94933
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CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D2212182

Serenity Knolls · Forest Knolls, CA
Active · expires Feb 2, 2027
CLIA Number05D2212182
Laboratory TypeResidential Treatment Ctr
Certificate Effective DateFebruary 3, 2025
Certificate Expiration DateFebruary 2, 2027
Laboratory DirectorMargaret Bourne
Laboratory Phone(415) 488-0400
Laboratory LocationSerenity Knolls145 Tamal Rd Ims Office, Forest Knolls, CA 94933
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Serenity Knolls's NPI number?

The NPI number for Serenity Knolls is 1831337534. It was assigned to this organization in the NPPES registry on February 3, 2009.

Where is Serenity Knolls located?

Serenity Knolls is located at 145 Tamal Road, Forest Knolls, CA 94933. The listed phone number is (415) 488-0400.

What is Serenity Knolls's specialty?

The primary specialty registered for this NPI is Substance Abuse Rehabilitation Facility with taxonomy code 324500000X.

Does Serenity Knolls hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2212182) is associated with this NPI, valid through February 2, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Serenity Knolls was last updated on January 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.