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MARTHA A. MEZA M.D. INC
NPI 1487076907
Internal Medicine in Los Angeles, CA

Active since January 17, 2014
4623 EAGLE ROCK BLVD, LOS ANGELES, CA 90041(323) 340-1500(323) 340-1511 Get Directions Write a Review

NPPES record last updated: January 17, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Martha A. Meza M.d. Inc NPPES

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

MARTHA A. MEZA M.D. INC (NPI 1487076907) is a healthcare organization registered as an internal medicine in Los Angeles, California and active in the NPI registry since January 2014. The organization lists Martha A. Meza, Owner/physician, as its authorized official.

NPPES Registry Identity

NPI1487076907
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameMARTHA A. MEZA M.D. INC
Location Address4623 EAGLE ROCK BLVDLos Angeles, CA 90041-3049
Mailing Address4623 Eagle Rock BlvdLos Angeles, CA 90041-3049 · (323) 340-1500 · Fax (323) 340-1511
Phone(323) 340-1500
Fax(323) 340-1511
Organization SubpartNo
Authorized OfficialMartha A. MezaOwner/physician · (323) 340-1500
Enumeration DateJanuary 17, 2014
✔ NPI 1487076907 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A80538
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
4623 EAGLE ROCK BLVD, Los Angeles, CA 90041
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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, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Martha A. Meza M.d. Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by December 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20140422001133Non-DME Part B · Clinic/Group PracticeDue dateDecember 31, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Martha A. Meza M.D. Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Martha Meza, MD
Internal Medicine
NPI 1629126545
4623 EAGLE ROCK BLVD
Los Angeles, CA 90041
(323) 340-1500
✔ PECOS✔ Accepts MedicareSame 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 Martha A. Meza M.D. Inc's NPI number?

The NPI number for Martha A. Meza M.D. Inc is 1487076907. It was assigned to this organization in the NPPES registry on January 17, 2014.

Where is Martha A. Meza M.D. Inc located?

Martha A. Meza M.D. Inc is located at 4623 Eagle Rock Blvd, Los Angeles, CA 90041. The listed phone number is (323) 340-1500.

What is Martha A. Meza M.D. Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Martha A. Meza M.D. Inc enrolled in Medicare?

Yes. Martha A. Meza M.D. Inc is registered in the Medicare PECOS enrollment system.

When is Martha A. Meza M.D. Inc's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by December 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Martha A. Meza M.D. Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Martha A. Meza M.D. Inc. 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 Martha A. Meza M.D. Inc was last updated on January 17, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.