Fiona Chai-Tom, DO
NPI 1174104848 · Internal Medicine Physician · Riverside, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Fiona Chai-Tom, DO is a Internal Medicine Physician provider in Riverside, CA (NPI 1174104848).
Provider details
- NPI number
- 1174104848
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 20A20694 (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
5 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
- 2021-04-15
- Last updated
- 2024-07-28
- Certified
- 2024-07-28
Frequently asked questions
- What is Fiona Chai-Tom's NPI number?
- Fiona Chai-Tom's National Provider Identifier (NPI) is 1174104848, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Fiona Chai-Tom's specialty?
- Fiona Chai-Tom is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Fiona Chai-Tom located?
- Fiona Chai-Tom's practice location on file with NPPES is 10800 Magnolia Ave, Riverside, CA 92505-3043.
- What is Fiona Chai-Tom's phone number?
- The practice phone number listed in the NPPES registry for Fiona Chai-Tom is (833) 574-2273.
- Does Fiona Chai-Tom accept Medicare?
- Fiona Chai-Tom is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Fiona Chai-Tom's NPI active?
- Yes — Fiona Chai-Tom's NPI (1174104848) is active in the NPPES registry as of the last update on 2024-07-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.