Diana Trang, DO
NPI 1851854293 · Family Medicine Physician · Fairfield, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Trang, DO is a Family Medicine Physician provider in Fairfield, CA (NPI 1851854293).
Provider details
- NPI number
- 1851854293
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 2255 (NE)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
- 2019-04-11
- Last updated
- 2023-10-17
- Certified
- 2023-10-17
Frequently asked questions
- What is Diana Trang's NPI number?
- Diana Trang's National Provider Identifier (NPI) is 1851854293, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Trang's specialty?
- Diana Trang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Trang located?
- Diana Trang's practice location on file with NPPES is 101 Bodin Cir, Fairfield, CA 94535-1800.
- What is Diana Trang's phone number?
- The practice phone number listed in the NPPES registry for Diana Trang is (707) 423-3057.
- Does Diana Trang accept Medicare?
- Diana Trang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Trang's NPI active?
- Yes — Diana Trang's NPI (1851854293) is active in the NPPES registry as of the last update on 2023-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.