Infectious Disease Associates of Orange County, Inc.
NPI 1326403130 · Infectious Disease Physician · Santa Ana, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Infectious Disease Associates of Orange County, Inc. is a Infectious Disease Physician organization in Santa Ana, CA (NPI 1326403130).
Provider details
- NPI number
- 1326403130
- Entity type
- Organization
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Tuan Ta, Owner(714) 664-0045
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-12-21
- Last updated
- 2025-08-14
- Certified
- 2025-08-14
Frequently asked questions
- What is Infectious Disease Associates of Orange County, Inc.'s NPI number?
- Infectious Disease Associates of Orange County, Inc.'s National Provider Identifier (NPI) is 1326403130, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Infectious Disease Associates of Orange County, Inc.?
- Infectious Disease Associates of Orange County, Inc. is classified in the NPPES registry as Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Infectious Disease Associates of Orange County, Inc. located?
- Infectious Disease Associates of Orange County, Inc.'s practice location on file with NPPES is 999 N Tustin Ave Ste 224, Santa Ana, CA 92705-6506.
- What is Infectious Disease Associates of Orange County, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Infectious Disease Associates of Orange County, Inc. is (714) 664-0045.
- Does Infectious Disease Associates of Orange County, Inc. accept Medicare?
- Infectious Disease Associates of Orange County, Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Infectious Disease Associates of Orange County, Inc.?
- The authorized official listed on Infectious Disease Associates of Orange County, Inc.'s NPPES record is Tuan Ta, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Infectious Disease Associates of Orange County, Inc.'s NPI active?
- Yes — Infectious Disease Associates of Orange County, Inc.'s NPI (1326403130) is active in the NPPES registry as of the last update on 2025-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.