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INFECTIOUS DISEASE ASSOCIATES OF ORANGE COUNTY, INC.
NPI 1326403130
Internal Medicine - Infectious Disease in Santa Ana, CA

Active since December 21, 2015
999 N TUSTIN AVE STE 224, SANTA ANA, CA 92705(714) 664-0045(714) 664-0049 Get Directions Write a Review

NPPES record last updated: August 14, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 14, 2025, Jun 7, 2021, Dec 21, 2015 (3 updates tracked since 2015).

About Infectious Disease Associates Of Orange County, Inc. NPPES

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

INFECTIOUS DISEASE ASSOCIATES OF ORANGE COUNTY, INC. (NPI 1326403130) is a healthcare organization registered as an infectious disease in Santa Ana, California and active in the NPI registry since December 2015. The organization lists Tuan V Ta, Owner, as its authorized official.

NPPES Registry Identity

NPI1326403130
Entity TypeOrganization
Primary Taxonomy207RI0200X
Legal Business NameINFECTIOUS DISEASE ASSOCIATES OF ORANGE COUNTY, INC.
Location Address999 N TUSTIN AVE STE 224Santa Ana, CA 92705-6506
Mailing Address2321 E 4th Street, Suite C #637Santa Ana, CA 92705-3606 · (714) 664-0045 · Fax (714) 664-0049
Phone(714) 664-0045
Fax(714) 664-0049
Organization SubpartNo
Authorized OfficialTuan V TaOwner · (714) 664-0045
Enumeration DateDecember 21, 2015
Last NPPES UpdateAugust 14, 20253 updates tracked since enumeration
NPPES CertifiedAugust 14, 2025
✔ NPI 1326403130 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
999 N TUSTIN AVE STE 224, Santa Ana, CA 92705
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Other Identifiers 1

Medicaid1326403130CA

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

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TUAN V TA MD
Internal Medicine (Infectious Disease)
999 N TUSTIN AVE STE 224
SANTA ANA, CA 92705
Orange County (714) 664-0045
SALENA BIRDSALL NP
Nurse Practitioner
999 N TUSTIN AVE STE 224
SANTA ANA, CA 92705
Orange County (714) 664-0045

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 Infectious Disease Associates Of Orange County, Inc.'s NPI number?

The NPI number for Infectious Disease Associates Of Orange County, Inc. is 1326403130. It was assigned to this organization in the NPPES registry on December 21, 2015.

Where is Infectious Disease Associates Of Orange County, Inc. located?

Infectious Disease Associates Of Orange County, Inc. is located at 999 N Tustin Ave Ste 224, Santa Ana, CA 92705. The listed phone number is (714) 664-0045.

What is Infectious Disease Associates Of Orange County, Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

When was this NPI record last updated?

The NPPES record for Infectious Disease Associates Of Orange County, Inc. was last updated on August 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.