MAHTAB K YOUSEFI, M.D.
NPI 1750027546
Psychiatry & Neurology - Psychiatry in Costa Mesa, CA

Active since May 05, 2022
301 VICTORIA ST, COSTA MESA, CA 92627(949) 624-2734 Get Directions Write a Review

NPPES record last updated: February 21, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 21, 2025, May 16, 2022, May 5, 2022 (3 updates tracked since 2022).

About Mahtab K Yousefi, M.d. NPPES

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

MAHTAB K YOUSEFI, M.D. (NPI 1750027546) is a healthcare organization registered as a psychiatry in Costa Mesa, California and active in the NPI registry since May 2022. The organization lists Mahtab Karkhane Yousefi, Ceo, as its authorized official.

NPPES Registry Identity

NPI1750027546
Entity TypeOrganization
Primary Taxonomy2084P0800X
Legal Business NameMAHTAB K YOUSEFI, M.D.
Location Address301 VICTORIA STCosta Mesa, CA 92627-1995
Mailing Address427 E 17th St # F249Costa Mesa, CA 92627-3201 · (949) 570-9415 · Fax (949) 570-9413
Organization SubpartNo
Authorized OfficialMahtab Karkhane YousefiCeo · (949) 570-9415
Enumeration DateMay 5, 2022
Last NPPES UpdateFebruary 21, 20253 updates tracked since enumeration
NPPES CertifiedFebruary 21, 2025
✔ NPI 1750027546 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
301 VICTORIA ST, Costa Mesa, CA 92627

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)

Mahtab K Yousefi, M.d. 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 Mahtab K Yousefi, M.D., which bills Medicare for the services this clinician delivers.

Clinician (1)

Psychiatry
NPI 1649613753
301 VICTORIA ST
Costa Mesa, CA 92627
(949) 642-2734
✔ 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 Mahtab K Yousefi, M.D.'s NPI number?

The NPI number for Mahtab K Yousefi, M.D. is 1750027546. It was assigned to this organization in the NPPES registry on May 5, 2022.

Where is Mahtab K Yousefi, M.D. located?

Mahtab K Yousefi, M.D. is located at 301 Victoria St, Costa Mesa, CA 92627. The listed phone number is (949) 624-2734.

What is Mahtab K Yousefi, M.D.'s specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Mahtab K Yousefi, M.D. enrolled in Medicare?

Yes. Mahtab K Yousefi, M.D. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mahtab K Yousefi, M.D.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Psychiatry) reassigns their Medicare billing to Mahtab K Yousefi, M.D.. 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 Mahtab K Yousefi, M.D. was last updated on February 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.