DARREN F X CLAIR MD INC A PROFESSIONAL MEDICAL CORPORATION
NPI 1265500391
Anesthesiology in Westlake Vlg, CA

Q: What is Darren F X Clair MD Inc A Professional Medical Corporation's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Active since November 30, 2006

32123 LINDERO CANYON RD STE 205, WESTLAKE VLG, CA 91361(310) 866-9889(805) 379-4541 Get Directions Write a Review

NPPES record last updated: August 19, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 19, 2024, Jul 23, 2024 (2 updates tracked since 2024).

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About Darren F X Clair Md Inc A Professional Medical Corporation NPPES

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

DARREN F X CLAIR MD INC A PROFESSIONAL MEDICAL CORPORATION (NPI 1265500391) is a healthcare organization registered as an anesthesiology in Westlake Vlg, California and active in the NPI registry since November 2006. The organization maintains a secondary practice location in Thousand Oaks and lists Darren F. Clair, Owner, as its authorized official.

NPPES Registry Identity

NPI1265500391

Entity TypeOrganization

Primary Taxonomy207L00000X

Legal Business NameDARREN F X CLAIR MD INC A PROFESSIONAL MEDICAL CORPORATION

Location Address32123 LINDERO CANYON RD STE 205Westlake Vlg, CA 91361-5414

Mailing Address32123 Lindero Canyon Rd Ste 205Westlake Vlg, CA 91361-5414 · (310) 866-9889 · Fax (805) 379-4541

Phone(310) 866-9889

Fax(805) 379-4541

Organization SubpartNo

Authorized OfficialDarren F. ClairOwner · (310) 866-9889

Enumeration DateNovember 30, 2006

Last NPPES UpdateAugust 19, 20242 updates tracked since enumeration

NPPES CertifiedAugust 19, 2024

✔ NPI 1265500391 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Also ListedClinic/Center · Medical SpecialtyTaxonomy 261QM2500X

32123 LINDERO CANYON RD STE 205, Westlake Vlg, CA 91361

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Secondary Practice Location 1

Location 13510 N Moorpark Rd Ste 101Thousand Oaks, CA 91360-2688 · Phone (805) 492-9000

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Darren F X Clair Md Inc A Professional Medical Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Darren F X Clair MD Inc A Professional Medical Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Darren Clair, M.D.

Anesthesiology

NPI 1124196258

32123 LINDERO CANYON RD STE 205
Westlake Village, CA 91361

(895) 379-0254

✔ PECOSSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Darren F X Clair MD Inc A Professional Medical Corporation's NPI number?

The NPI number for Darren F X Clair MD Inc A Professional Medical Corporation is 1265500391. It was assigned to this organization in the NPPES registry on November 30, 2006.

Where is Darren F X Clair MD Inc A Professional Medical Corporation located?

Darren F X Clair MD Inc A Professional Medical Corporation is located at 32123 Lindero Canyon Rd Ste 205, Westlake Vlg, CA 91361. The listed phone number is (310) 866-9889.

What is Darren F X Clair MD Inc A Professional Medical Corporation's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Darren F X Clair MD Inc A Professional Medical Corporation enrolled in Medicare?

Yes. Darren F X Clair MD Inc A Professional Medical Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Darren F X Clair MD Inc A Professional Medical Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Anesthesiology) reassigns their Medicare billing to Darren F X Clair MD Inc A Professional Medical Corporation. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Darren F X Clair MD Inc A Professional Medical Corporation was last updated on August 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.