Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Ahdad Ziyar, MD, Inc

Organization Internal Medicine Physician · NPI 1124726989

Ahdad Ziyar, MD, Inc is an Internal Medicine Physician in Santa Ana, California. Registered with an NPI since 2023.

In the registry since
2023
Specialties on file
2
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

801 N Tustin Ave Ste 605
Santa Ana, CA 92705-3610
Phone: (714) 584-9930
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Allergy & Immunology (Internal Medicine) Physician (primary) Taxonomy 207RA0201X
Internal Medicine Physician Taxonomy 207R00000X

Record details

NPI number1124726989
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Ahdad Ziyar — Physician · (213) 282-7603
NPI enumeratedFebruary 21, 2023
Last updated in NPPESNovember 28, 2025
Certification dateNovember 28, 2025
Mailing address7335 N 1st St Ste 102, Fresno, CA 93720-2968

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