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A. M. MEMAR-ZIA MD INC.
NPI 1912250358
Internal Medicine in Simi Valley, CA

Active since October 23, 2012
1687 ERRINGER RD, SUITE 205, SIMI VALLEY, CA 93065(805) 527-6666(805) 527-2212 Get Directions Write a Review

NPPES record last updated: November 1, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About A. M. Memar-zia Md Inc. NPPES

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

A. M. MEMAR-ZIA MD INC. (NPI 1912250358) is a healthcare organization registered as an internal medicine in Simi Valley, California and active in the NPI registry since October 2012. The organization lists Abdol Memar-zia, Owner, as its authorized official.

NPPES Registry Identity

NPI1912250358
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameA. M. MEMAR-ZIA MD INC.
Location Address1687 ERRINGER RD, SUITE 205Simi Valley, CA 93065-6508
Mailing Address1687 Erringer Rd, Suite 205Simi Valley, CA 93065-6508 · (805) 527-6666 · Fax (805) 527-2212
Phone(805) 527-6666
Fax(805) 527-2212
Organization SubpartNo
Authorized OfficialAbdol Memar-ziaOwner · (805) 527-6666
Enumeration DateOctober 23, 2012
Last NPPES UpdateNovember 1, 2012
✔ NPI 1912250358 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 · A33418
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.
1687 ERRINGER RD, Simi Valley, CA 93065
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Other Identifiers 1

Medicare UPINC03919

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)

A. M. Memar-zia Md Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by March 31, 2027

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 IDO20121106000534Non-DME Part B · Clinic/Group PracticeDue dateMarch 31, 2027
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 A. M. Memar-Zia MD Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Abdol Memar-Zia, MD
Internal Medicine
NPI 1639122112
1687 ERRINGER RD SUITE 205
Simi Valley, CA 93065
(805) 527-6666
✔ 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 A. M. Memar-Zia MD Inc.'s NPI number?

The NPI number for A. M. Memar-Zia MD Inc. is 1912250358. It was assigned to this organization in the NPPES registry on October 23, 2012.

Where is A. M. Memar-Zia MD Inc. located?

A. M. Memar-Zia MD Inc. is located at 1687 Erringer Rd Suite 205, Simi Valley, CA 93065. The listed phone number is (805) 527-6666.

What is A. M. Memar-Zia MD Inc.'s specialty?

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

Is A. M. Memar-Zia MD Inc. enrolled in Medicare?

Yes. A. M. Memar-Zia MD Inc. is registered in the Medicare PECOS enrollment system.

When is A. M. Memar-Zia MD 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 March 31, 2027. 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 A. M. Memar-Zia MD Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to A. M. Memar-Zia MD 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 A. M. Memar-Zia MD Inc. was last updated on November 1, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.