Chau Nguyen-Thio, MD
NPI 1225010135 · Internal Medicine Physician · Eastvale, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chau Nguyen-Thio, MD is a Internal Medicine Physician provider in Eastvale, CA (NPI 1225010135).
Provider details
- NPI number
- 1225010135
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G79548 (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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 7117 Brockton AveRiverside, CA 92506-2615Phone: (951) 782-3612Fax: (951) 784-3269
Registry dates
- Enumerated
- 2005-11-16
- Last updated
- 2020-02-25
- Certified
- 2020-02-25
Frequently asked questions
- What is Chau Nguyen-Thio's NPI number?
- Chau Nguyen-Thio's National Provider Identifier (NPI) is 1225010135, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chau Nguyen-Thio's specialty?
- Chau Nguyen-Thio is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Chau Nguyen-Thio located?
- Chau Nguyen-Thio's practice location on file with NPPES is 12742 Limonite Ave, Eastvale, CA 92880-9630.
- What is Chau Nguyen-Thio's phone number?
- The practice phone number listed in the NPPES registry for Chau Nguyen-Thio is (951) 739-2717.
- Does Chau Nguyen-Thio accept Medicare?
- Chau Nguyen-Thio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chau Nguyen-Thio's NPI active?
- Yes — Chau Nguyen-Thio's NPI (1225010135) is active in the NPPES registry as of the last update on 2020-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.