Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Preethi Thiagarajan, OD, PHD, FAAO

Individual provider Optometrist · NPI 1841851045

Dr. Preethi Thiagarajan, OD, PHD, FAAO is an Optometrist in San Leandro, California. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2019
Specialties on file
2
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

15051 Hesperian Blvd Ste A
San Leandro, CA 94578-3536
Phone: (646) 330-9068
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 5378 (MA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1841851045
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD , PHD , FAAO
Sole proprietorYes
NPI enumeratedJune 27, 2019
Last updated in NPPESDecember 28, 2021
Certification dateDecember 28, 2021

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