ROGER JOSEPH MAH CORPORATION
NPI 1003259060
Anesthesiology in Santa Monica, CA

Q: What is Roger Joseph Mah Corporation's NPI number?

The NPI number for Roger Joseph Mah Corporation is 1003259060. It was assigned to this organization in the NPPES registry on April 9, 2013.

Q: What is Roger Joseph Mah Corporation's specialty?

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

Active since April 09, 2013

2121 SANTA MONICA BLVD, SANTA MONICA, CA 90404(310) 829-5511 Get Directions Write a Review

NPPES record last updated: April 17, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Roger Joseph Mah Corporation NPPES

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

ROGER JOSEPH MAH CORPORATION (NPI 1003259060) is a healthcare organization registered as an anesthesiology in Santa Monica, California and active in the NPI registry since April 2013. The organization lists Roger J Mah, President/sole Owner, as its authorized official.

NPPES Registry Identity

NPI1003259060

Entity TypeOrganization

Primary Taxonomy207L00000X

Legal Business NameROGER JOSEPH MAH CORPORATION

Location Address2121 SANTA MONICA BLVDSanta Monica, CA 90404-2303

Mailing Address2476 Overland Ave Ste 201Los Angeles, CA 90064-3374

Phone(310) 829-5511

Organization SubpartNo

Authorized OfficialRoger J MahPresident/sole Owner · (123) 456-7890

Enumeration DateApril 9, 2013

Last NPPES UpdateApril 17, 2024

NPPES CertifiedApril 17, 2024

✔ NPI 1003259060 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · G77107

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.

2121 SANTA MONICA BLVD, Santa Monica, CA 90404

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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)

Roger Joseph Mah 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 Roger Joseph Mah Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Roger Mah, M.D.

Anesthesiology

NPI 1477564185

1328 22ND ST
Santa Monica, CA 90404

(310) 829-8202

✔ PECOS✔ Accepts Medicare0.1 mi

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 Roger Joseph Mah Corporation's NPI number?

The NPI number for Roger Joseph Mah Corporation is 1003259060. It was assigned to this organization in the NPPES registry on April 9, 2013.

Where is Roger Joseph Mah Corporation located?

Roger Joseph Mah Corporation is located at 2121 Santa Monica Blvd, Santa Monica, CA 90404. The listed phone number is (310) 829-5511.

What is Roger Joseph Mah Corporation's specialty?

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

Is Roger Joseph Mah Corporation enrolled in Medicare?

Yes. Roger Joseph Mah Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Roger Joseph Mah Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Anesthesiology) reassigns their Medicare billing to Roger Joseph Mah 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 Roger Joseph Mah Corporation was last updated on April 17, 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.