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DR. PREETHI THIAGARAJAN O.D., PH.D., FAAO
NPI 1841851045
Optometrist in San Leandro, CA

Active since June 27, 2019
15051 HESPERIAN BLVD STE A, SAN LEANDRO, CA 94578(646) 330-9068 Get Directions Write a Review

NPPES record last updated: December 28, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 28, 2021, Sep 23, 2019 (2 updates tracked since 2019).

About Dr. Preethi Thiagarajan O.d., Ph.d., Faao NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. PREETHI THIAGARAJAN O.D., PH.D., FAAO (NPI 1841851045) is an individual optometrist in San Leandro, California, licensed in Massachusetts (5378) and active in the NPI registry since June 2019.

NPPES Registry Identity

NPI1841851045
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDR. PREETHI THIAGARAJANCredential: O.D., PH.D., FAAO
Location Address15051 HESPERIAN BLVD STE ASan Leandro, CA 94578-3536
Mailing Address15051 Hesperian Blvd Ste ASan Leandro, CA 94578-3536 · (646) 330-9068
Phone(646) 330-9068
Sole ProprietorYes
Enumeration DateJune 27, 2019
Last NPPES UpdateDecember 28, 20212 updates tracked since enumeration
NPPES CertifiedDecember 28, 2021
✔ NPI 1841851045 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in MA · 5378
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
15051 HESPERIAN BLVD STE A, San Leandro, CA 94578
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Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MARK DANIEL BAILEY MD
Ophthalmology
15051 HESPERIAN BLVD STE A
SAN LEANDRO, CA 94578
Alameda County (510) 276-1212
NISREEN MESIWALA KOTHARI MD
Ophthalmology
15051 HESPERIAN BLVD STE A
SAN LEANDRO, CA 94578
Alameda County (510) 276-1212

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Preethi Thiagarajan's NPI number?

The NPI number for Preethi Thiagarajan is 1841851045. It was assigned to this individual provider in the NPPES registry on June 27, 2019.

Where is Preethi Thiagarajan located?

Preethi Thiagarajan practices at 15051 Hesperian Blvd Ste A, San Leandro, CA 94578. The listed phone number is (646) 330-9068.

What is Preethi Thiagarajan's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

When was this NPI record last updated?

The NPPES record for Preethi Thiagarajan was last updated on December 28, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.