AHDAD ZIYAR, M.D., INC. – NPI #1124726989
Internal Medicine

An internist doctor of osteopathy that specializes in the treatment of allergy and immunologic disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Special Qualifications in the field of Allergy & Immunology.

Health Care Provider Taxonomy Code for Internal Medicine

AHDAD ZIYAR, M.D., INC. is a provider located in SANTA ANA, CA. NPPES has assigned the NPI number 1124726989 to AHDAD ZIYAR, M.D., INC. on February 21, 2023. It is a Type-2 NPI, indicating this NPI number is associated with an organization. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207RA0201X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Allergy & Immunology

The NPI profile was last updated on Nov 28, 2025. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for AHDAD ZIYAR, M.D., INC. below.

NPI Profile for
AHDAD ZIYAR, M.D., INC.

NPI Number
1124726989
Enumeration Date

(more than 3 years ago)
Entity Type
Type-2  Organization
Organization health care providers may have a single employee or thousands of employees. An example is an incorporated individual who is an organization's only employee.
Legal Name
AHDAD ZIYAR, M.D., INC.
Primary location
801 N TUSTIN AVE STE 605
SANTA ANA, CA 92705-3610
Phone: (714) 584-9930 Fax:
Mailing address
7335 N 1ST ST STE 102
FRESNO, CA 93720-2968
Phone: (559) 449-1209 Fax:
Organization Subpart
No
Authorized Official
AHDAD ZIYAR
PHYSICIAN
Phone: (213) 282-7603
Updated
Certification Date
Nov 28, 2025

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RA0201X
- Internal Medicine / Allergy & Immunology (Primary)
207R00000X
- Internal Medicine

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.