Chidao Nguyen, D.O., a Professional Corporation
NPI 1114201266 · Internal Medicine Physician · Westminster, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chidao Nguyen, D.O., a Professional Corporation is a Internal Medicine Physician organization in Westminster, CA (NPI 1114201266).
Provider details
- NPI number
- 1114201266
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Chidao Nguyen, President(909) 786-5061
- License
- 20A10338 (CA)
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
14 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
- 2011-10-07
- Last updated
- 2018-11-19
Frequently asked questions
- What is Chidao Nguyen, D.O., a Professional Corporation's NPI number?
- Chidao Nguyen, D.O., a Professional Corporation's National Provider Identifier (NPI) is 1114201266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Chidao Nguyen, D.O., a Professional Corporation?
- Chidao Nguyen, D.O., a Professional Corporation is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Chidao Nguyen, D.O., a Professional Corporation located?
- Chidao Nguyen, D.O., a Professional Corporation's practice location on file with NPPES is 9353 Bolsa Ave, Westminster, CA 92683-5951.
- What is Chidao Nguyen, D.O., a Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Chidao Nguyen, D.O., a Professional Corporation is (909) 786-5061.
- Does Chidao Nguyen, D.O., a Professional Corporation accept Medicare?
- Chidao Nguyen, D.O., a Professional Corporation 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 Chidao Nguyen, D.O., a Professional Corporation?
- The authorized official listed on Chidao Nguyen, D.O., a Professional Corporation's NPPES record is Chidao Nguyen, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Chidao Nguyen, D.O., a Professional Corporation's NPI active?
- Yes — Chidao Nguyen, D.O., a Professional Corporation's NPI (1114201266) is active in the NPPES registry as of the last update on 2018-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.