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MEDMARK TREATMENT CENTERS - FAIRFIELD, INC.
NPI 1669534491
Clinic/Center - Methadone in Fairfield, CA

Active since December 15, 2006CLIA 05D2029341 · Waiver
1143 MISSOURI STREET, FAIRFIELD, CA 94533(707) 435-9911(707) 435-0704 Get Directions Write a Review

NPPES record last updated: March 18, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 18, 2026, Jul 29, 2024, Jul 10, 2023 and 4 more (7 updates tracked since 2020).

About Medmark Treatment Centers - Fairfield, Inc. NPPES

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

MEDMARK TREATMENT CENTERS - FAIRFIELD, INC. (NPI 1669534491) is a healthcare organization registered as a methadone in Fairfield, California and active in the NPI registry since December 2006. The organization holds a CLIA Waiver certificate valid through September 5, 2027 and lists Bruce Jarvie, Vp, Treasurer, as its authorized official.

NPPES Registry Identity

NPI1669534491
Entity TypeOrganization
Primary Taxonomy261QM2800X
Legal Business NameMEDMARK TREATMENT CENTERS - FAIRFIELD, INC.
Location Address1143 MISSOURI STREETFairfield, CA 94533-6007
Mailing Address1720 Lakepointe Dr Ste 117Lewisville, TX 75057-6425 · (214) 379-3300 · Fax (214) 853-9018
Phone(707) 435-9911
Fax(707) 435-0704
Organization SubpartNo
Authorized OfficialBruce JarvieVp, Treasurer · (214) 379-3300
Enumeration DateDecember 15, 2006
Last NPPES UpdateMarch 18, 20267 updates tracked since enumeration
NPPES CertifiedMarch 18, 2026
✔ NPI 1669534491 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · MethadoneAmbulatory Health Care Facilities
Taxonomy Code261QM2800X
License✔ Licensed in CA · 48-03
Definition
An entity, facility, or distinct part of a facility providing diagnostic, and replacement maintenance treatment services related to individuals with drug addiction.
1143 MISSOURI STREET, Fairfield, CA 94533
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Other Names 2

Doing Business AsMedmark Treatment Centers - Fairfield, Inc.
Doing Business AsMedmark Treatment Centers- Fairfield, Inc

Other Identifiers 2

Medicaid48AACA
Other48AACA · Medi-cal

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 05D2029341

Medmark Treatment Centers- Fairfield Inc · Fairfield, CA
Active · expires Sep 5, 2027
CLIA Number05D2029341
Laboratory TypeNarcotic Treatment Ctr
Certificate Effective DateSeptember 6, 2025
Certificate Expiration DateSeptember 5, 2027
Laboratory DirectorDr. Gilbert Greene
Laboratory Phone(707) 435-9911
Laboratory LocationMedmark Treatment Centers- Fairfield Inc1143 Missouri St, Fairfield, CA 94533
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Medication assisted treatment, methadone; weekly bundle including dispensing and/or administration, substance use counseling, individual and group therapy, and toxicology testing, if performed (provision of the services by a medicare-enrolled opioid treatm G2067
Medication Assisted Treatment (MAT) with methadone is a comprehensive approach to manage opioid addiction. It includes weekly methadone dispensing, substance use counseling, individual and group therapy sessions, and toxicology tests as needed, all provided by a Medicare-enrolled opioid treatment program.
1,156 services51 patients
Take-home supply of methadone; up to 7 additional day supply (provision of the services by a medicare-enrolled opioid treatment program); list separately in addition to code for primary procedure G2078
This service provides an additional 7-day supply of methadone, a medication used to treat opioid addiction, for patients to take at home. It's provided by a Medicare-enrolled opioid treatment program. This service is billed separately from the main treatment procedure.
710 services39 patients
Medication assisted treatment, weekly bundle not including the drug, including substance use counseling, individual and group therapy, and toxicology testing if performed (provision of the services by a medicare-enrolled opioid treatment program) G2074
Medication Assisted Treatment is a comprehensive program for managing substance use. It includes counseling (both individual and group), along with regular toxicology testing if required. This service is provided by a Medicare-enrolled opioid treatment program.
194 services35 patients

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 Medmark Treatment Centers - Fairfield, Inc.'s NPI number?

The NPI number for Medmark Treatment Centers - Fairfield, Inc. is 1669534491. It was assigned to this organization in the NPPES registry on December 15, 2006. The provider is doing business as MedMark Treatment Centers- Fairfield, Inc.

Where is Medmark Treatment Centers - Fairfield, Inc. located?

Medmark Treatment Centers - Fairfield, Inc. is located at 1143 Missouri Street, Fairfield, CA 94533. The listed phone number is (707) 435-9911.

What is Medmark Treatment Centers - Fairfield, Inc.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Methadone, with taxonomy code 261QM2800X.

Does Medmark Treatment Centers - Fairfield, Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2029341) is associated with this NPI, valid through September 5, 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 Medmark Treatment Centers - Fairfield, Inc. was last updated on March 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.