James Diep
NPI 1740939404 · Foot & Ankle Surgery Podiatrist · Concord, CA
Enrolled with Medicare as Practitioner - Podiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Diep is a Foot & Ankle Surgery Podiatrist provider in Concord, CA (NPI 1740939404).
Provider details
- NPI number
- 1740939404
- Entity type
- Individual
- Primary specialty
- Foot & Ankle Surgery PodiatristPodiatric Medicine & Surgery Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Podiatric Medicine & Surgery Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2022-03-21
- Last updated
- 2025-07-03
- Certified
- 2025-07-03
Frequently asked questions
- What is James Diep's NPI number?
- James Diep's National Provider Identifier (NPI) is 1740939404, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Diep's specialty?
- James Diep is listed in the NPPES registry with a primary specialty of Foot & Ankle Surgery Podiatrist (Podiatric Medicine & Surgery Service Providers).
- Where is James Diep located?
- James Diep's practice location on file with NPPES is 2338 Almond Ave, Concord, CA 94520-2026.
- What is James Diep's phone number?
- The practice phone number listed in the NPPES registry for James Diep is (925) 979-8313.
- Does James Diep accept Medicare?
- James Diep is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Diep's NPI active?
- Yes — James Diep's NPI (1740939404) is active in the NPPES registry as of the last update on 2025-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.