Claire T Diep MD Inc
NPI 1609958636 · Internal Medicine Physician · Union City, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claire T Diep MD Inc is a Internal Medicine Physician organization in Union City, CA (NPI 1609958636).
Provider details
- NPI number
- 1609958636
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Claire Diep, President(510) 441-8081
- License
- A55900 (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
- 2006-10-19
- Last updated
- 2007-07-17
Frequently asked questions
- What is Claire T Diep MD Inc's NPI number?
- Claire T Diep MD Inc's National Provider Identifier (NPI) is 1609958636, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Claire T Diep MD Inc?
- Claire T Diep MD Inc is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Claire T Diep MD Inc located?
- Claire T Diep MD Inc's practice location on file with NPPES is 33509 Western Avenue, Union City, CA 94587.
- What is Claire T Diep MD Inc's phone number?
- The practice phone number listed in the NPPES registry for Claire T Diep MD Inc is (510) 441-8081.
- Does Claire T Diep MD Inc accept Medicare?
- Claire T Diep MD Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Claire T Diep MD Inc?
- The authorized official listed on Claire T Diep MD Inc's NPPES record is Claire Diep, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Claire T Diep MD Inc's NPI active?
- Yes — Claire T Diep MD Inc's NPI (1609958636) is active in the NPPES registry as of the last update on 2007-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.