Guillermo Rios-Rios
NPI 1376556035 · Pediatrics Physician · Oxnard, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Guillermo Rios-Rios is a Pediatrics Physician provider in Oxnard, CA (NPI 1376556035).
Provider details
- NPI number
- 1376556035
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A55049 (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
19 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
- 2006-08-14
- Last updated
- 2017-02-22
Frequently asked questions
- What is Guillermo Rios-Rios's NPI number?
- Guillermo Rios-Rios's National Provider Identifier (NPI) is 1376556035, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guillermo Rios-Rios's specialty?
- Guillermo Rios-Rios is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Guillermo Rios-Rios located?
- Guillermo Rios-Rios's practice location on file with NPPES is 650 Meta St, Oxnard, CA 93030-7182.
- What is Guillermo Rios-Rios's phone number?
- The practice phone number listed in the NPPES registry for Guillermo Rios-Rios is (805) 487-5351.
- Does Guillermo Rios-Rios accept Medicare?
- Guillermo Rios-Rios is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Guillermo Rios-Rios's NPI active?
- Yes — Guillermo Rios-Rios's NPI (1376556035) is active in the NPPES registry as of the last update on 2017-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.