DR. DENA THAMSOPIT O.D.
NPI 1740410307
Optometrist in Phelan, CA
About Dr. Dena Thamsopit O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DENA THAMSOPIT O.D. (NPI 1740410307) is an individual optometrist in Phelan, California, licensed in California (13806) and active in the NPI registry since July 2009. She is enrolled in Medicare PECOS and is a graduate of Ohio State University - College Of Optometry (2009).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Dena Thamsopit O.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92371 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHELAN, CA 92371
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 Dena Thamsopit's NPI number?
The NPI number for Dena Thamsopit is 1740410307. It was assigned to this individual provider in the NPPES registry on July 16, 2009.
Where is Dena Thamsopit located?
Dena Thamsopit practices at 4355 Phelan Rd, Phelan, CA 92371. The listed phone number is (760) 868-2020.
What is Dena Thamsopit's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Dena Thamsopit enrolled in Medicare?
Yes. Dena Thamsopit is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Dena Thamsopit accept?
Health plans from Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Providence Health Plan list Dena Thamsopit as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Dena Thamsopit was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days 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.
# Dr. Dena Thamsopit, O.D. · NPI 1740410307
Optometrist provider in Phelan, California. Individual provider, active in the CMS NPPES registry since July 16, 2009.
## Identity
- **NPI:** 1740410307 (Entity type: Individual)
- **Enumerated:** July 16, 2009
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 13806 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4355 PHELAN RD, Phelan, CA 92371-7675
- **Phone:** (760) 868-2020 · **Fax:** (760) 868-7675
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Medical school:** Ohio State University - College Of Optometry, class of 2009
## Record status
- **NPPES last updated:** August 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1740410307) · Data from the CMS NPPES public registry.