Nicholas Fong, DO
NPI 1053991711 · Internal Medicine Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Fong, DO is a Internal Medicine Physician provider in Walnut Creek, CA (NPI 1053991711).
Provider details
- NPI number
- 1053991711
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A22670 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
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
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)
- 751 S Bascom AveSan Jose, CA 95128-2604Phone: (408) 885-5000
Registry dates
- Enumerated
- 2021-04-08
- Last updated
- 2024-09-12
- Certified
- 2024-09-12
Frequently asked questions
- What is Nicholas Fong's NPI number?
- Nicholas Fong's National Provider Identifier (NPI) is 1053991711, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Fong's specialty?
- Nicholas Fong is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Fong located?
- Nicholas Fong's practice location on file with NPPES is 1425 S Main St, Walnut Creek, CA 94596-5318.
- What is Nicholas Fong's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Fong is (925) 295-4000.
- Does Nicholas Fong accept Medicare?
- Nicholas Fong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Fong's NPI active?
- Yes — Nicholas Fong's NPI (1053991711) is active in the NPPES registry as of the last update on 2024-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.