NPPES file of Aug 9, 2026

Darren F. Clair, M.D.

Anesthesiology Physician · Westlake Village, CA

Darren F. Clair, M.D. is an anesthesiology physician with a practice address in Westlake Village, California, and NPI 1124196258, issued on Nov 30, 2006. Check the license (California G51360, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124196258
Name
Darren F. Clair
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
G51360 CA
Self-reported in NPPES; status is on the state search
Practice location
32123 Lindero Canyon RD Ste 205, Westlake Village, CA 91361
Phone
(895) 379-0254
Enumerated
Nov 30, 2006
Record last updated
Jul 21, 2022
Medicaid ID
00G513600 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Darren F. Clair in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G51360
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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86% fewer Medicare Part D claims than the average anesthesiology physician in 2024

58 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D.

  1. Darren Clair58
  2. Specialty average402

Most prescribed

  1. Escitalopram Oxalate12 claims
  2. Triamterene-Hydrochlorothiazid12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Darren F. Clair among 7,571 anesthesiology physician records in California

Darren F. Clair, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 53% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 64% of these records are
  • Record last updated2022 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in California

There are 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Caroline Bessolo, M.D.Westlake Village, CA 913611437491362
  2. Marie Emmons, MDWestlake Village, CA 913611821146879
  3. Russ Erman, M.D.Westlake Village, CA 913611295701621
  4. Clifford Fine, M.D.Westlake Village, CA 913611528033370
  5. David Lowe, M.D.Westlake Village, CA 913611376555284
  6. Teri Namba Bansbach, M.D.Westlake Village, CA 913611609985308
  7. Bahram Namdari, D.OWestlake Village, CA 913611730479700
  8. John Slaght, M.D.Westlake Village, CA 913611790831287

Common questions

What is Darren F. Clair, M.D.'s NPI number?

Darren F. Clair, M.D.'s National Provider Identifier (NPI) is 1124196258, issued on Nov 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Darren F. Clair, M.D. located?

The NPPES record lists a practice address at 32123 Lindero Canyon RD Ste 205, Westlake Village, CA, 91361. Phone: (895) 379-0254. Providers update this record themselves, so call before visiting.

How can I verify Darren F. Clair, M.D.'s license?

NPPES lists California license number G51360, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Darren F. Clair, M.D. prescribe under Medicare Part D?

In 2024, Darren F. Clair, M.D. had 58 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.