Timothy G. Tieu, O.D.
Optometrist · Danville, CA
Timothy G. Tieu, O.D. is an optometrist with a practice address in Danville, California, and NPI 1629042965, issued on Feb 14, 2006. Check the license (California 11757T, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Timothy G. Tieu
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 11757T CA
Self-reported in NPPES; status is on the state search - Practice location
- 97 Railroad Ave, Danville, CA 94526
- Phone
- (925) 820-2064
- Enumerated
- Feb 14, 2006
- Record last updated
- Aug 1, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (925) 820-2162
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Timothy G. Tieu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 11757TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Timothy G. Tieu among 8,308 optometrist records in California
Timothy G. Tieu, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 66% newer
- In a Medicare fileNo · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2013 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 optometrist records list a practice address in Danville
They are 12 of the 897 NPPES records with a practice address in Danville, and 8,308 optometrist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 8,308 in California → Every provider in Danville → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Michael McDermott, O.D.Danville, CA 945261427103381
- Scott SakataDanville, CA 945261174931091
- Reena Thiara, O.D.Danville, CA 945261295981827
- Stephanie Veilleux, ODDanville, CA 945261730591660
- Diane Williams, ODDanville, CA 945261790746238
- Lisa Wong, ODDanville, CA 945261053963363
- Eileen Cheng, O.D.Pleasant Hill, CA 945231215907076
- Kevin Dong, O.D.Pleasant Hill, CA 945231366411894
Common questions
What is Timothy G. Tieu, O.D.'s NPI number?
Timothy G. Tieu, O.D.'s National Provider Identifier (NPI) is 1629042965, issued on Feb 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy G. Tieu, O.D. located?
The NPPES record lists a practice address at 97 Railroad Ave, Danville, CA, 94526. Phone: (925) 820-2064. Providers update this record themselves, so call before visiting.
How can I verify Timothy G. Tieu, O.D.'s license?
NPPES lists California license number 11757T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.