Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Dena Thamsopit, OD

Individual provider Optometrist · NPI 1740410307

Dr. Dena Thamsopit, OD is an Optometry in Phelan, California. Graduated from Ohio State University - College of Optometry in 2009, 17 years ago. Practices with Southern California Permanente Medical Group, an 11,242-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
17
Trained at
Ohio State University - College of Optometry
Licensed in
CA
In the registry since
2009
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

4355 Phelan Rd
Phelan, CA 92371-7675
Phone: (760) 868-2020
Fax: (760) 868-7675
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 13806 (CA)

Record details

NPI number1740410307
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD
Sole proprietorNo
NPI enumeratedJuly 16, 2009
Last updated in NPPESAugust 6, 2026
Certification dateAugust 6, 2026
Mailing address20670 Fuero Dr, Walnut, CA 91789-2408

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolOHIO STATE UNIVERSITY - COLLEGE OF OPTOMETRY
Graduated 2009 (17 years in practice)
Group practice Southern California Permanente Medical Group — 11242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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