Preethi Thiagarajan, O.D., PH.D., FAAO
Optometrist · San Leandro, CA
Preethi Thiagarajan, O.D., PH.D., FAAO is an optometrist with a practice address in San Leandro, California, and NPI 1841851045, issued on Jun 27, 2019. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Preethi Thiagarajan
- Credential
- O.D., PH.D., FAAO
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 5378 MA
Self-reported in NPPES; status is on the state search - Practice location
- 15051 Hesperian Blvd Ste A, San Leandro, CA 94578
- Phone
- (646) 330-9068
- Enumerated
- Jun 27, 2019
- Record last updated
- Dec 28, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 15051 Hesperian Blvd Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark Bailey, MDOphthalmology Physician1417530270
- Nisreen Kothari, MDOphthalmology Physician1730445644
Verify Preethi Thiagarajan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $38.42
2 payments; by number, the most common kind was food and beverage; the largest payer was Sight Sciences, Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Preethi Thiagarajan among 8,308 optometrist records in California
Preethi Thiagarajan, O.D., PH.D., FAAO 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. Its NPI, issued in 2019, is newer than 81% of them.
- NPI issued2019 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2021 · 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).
40 optometrist records list a practice address in San Leandro
They are 40 of the 4,976 NPPES records with a practice address in San Leandro, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in San Leandro → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Jina Chong, ODAshland, CA 945781528762705
- Kerry Feng, ODSan Leandro, CA 945781447074216
- Anna Margarita Geronimo, O.D.San Leandro, CA 945781518977933
- Franklin Lee, O.D.San Leandro, CA 945781164580296
- John Neishi, O.D.San Leandro, CA 945781528033875
- Huma SiddiquiAshland, CA 945781619233285
- Jamie Stonick, ODSan Leandro, CA 945781073646733
- James Wright, ODSan Leandro, CA 945781396811154
Common questions
What is Preethi Thiagarajan, O.D., PH.D., FAAO's NPI number?
Preethi Thiagarajan, O.D., PH.D., FAAO's National Provider Identifier (NPI) is 1841851045, issued on Jun 27, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Preethi Thiagarajan, O.D., PH.D., FAAO located?
The NPPES record lists a practice address at 15051 Hesperian Blvd Ste A, San Leandro, CA, 94578. Phone: (646) 330-9068. Providers update this record themselves, so call before visiting.
How can I verify Preethi Thiagarajan, O.D., PH.D., FAAO's license?
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. Medicare files from data.cms.gov. 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.