Timothy Tieu, O.D.
NPI 1629042965 · Optometrist · Danville, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Tieu, O.D. is a Optometrist provider in Danville, CA (NPI 1629042965).
Provider details
- NPI number
- 1629042965
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 11757T (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-02-14
- Last updated
- 2013-08-01
Frequently asked questions
- What is Timothy Tieu's NPI number?
- Timothy Tieu's National Provider Identifier (NPI) is 1629042965, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Tieu's specialty?
- Timothy Tieu is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Timothy Tieu located?
- Timothy Tieu's practice location on file with NPPES is 97 Railroad Ave, Danville, CA 94526-3852.
- What is Timothy Tieu's phone number?
- The practice phone number listed in the NPPES registry for Timothy Tieu is (925) 820-2064.
- Does Timothy Tieu accept Medicare?
- Timothy Tieu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Tieu's NPI active?
- Yes — Timothy Tieu's NPI (1629042965) is active in the NPPES registry as of the last update on 2013-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.