Dena Thamsopit, O.D.
Optometrist · Phelan, CA
Dena Thamsopit, O.D. is an optometrist with a practice address in Phelan, California, and NPI 1740410307, issued on Jul 16, 2009. Check the license (California 13806, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Dena Thamsopit
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 13806 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4355 Phelan RD, Phelan, CA 92371
- Phone
- (760) 868-2020
- Enumerated
- Jul 16, 2009
- Record last updated
- Aug 6, 2026
- Fax
- (760) 868-7675
- Medicare enrollment
- Enrolled (PECOS I20091204000238); accepts Medicare assignment
- Medical or professional school
- Ohio State University - College Of Optometry, 2009
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 4355 Phelan RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Poblete, ODOptometrist1164196820
- Bryan Vanesian, O.D.Optometrist1346232923
- Jesse Wetzel, ODOptometrist1811595044
Verify Dena Thamsopit in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 13806Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Southern California Permanente Medical GroupHesperia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dena Thamsopit among 8,308 optometrist records in California
Dena Thamsopit, O.D. 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 2009, is newer than 57% of them.
- NPI issued2009 · 57% of these records are older, 41% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2009 · median 2008 among the 3,573 with a school on file
- Record last updated2026 · 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).
4 optometrist records list a practice address in Phelan
They are 4 of the 48 NPPES records with a practice address in Phelan, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Phelan → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Michael Poblete, ODPhelan, CA 923711164196820
- Bryan Vanesian, O.D.Phelan, CA 923711346232923
- Jesse Wetzel, ODPhelan, CA 923711811595044
- Matthew Diggory, O.D.Redlands, CA 923731255887857
- Bruce Greene, O.D.Redlands, CA 923731053436410
- Lewis Kemmerer, ODRedlands, CA 923731942242912
- Steven Kleen, O.D.Redlands, CA 923731063497741
- Matthew Moraton, ODRedlands, CA 923731992219133
Common questions
What is Dena Thamsopit, O.D.'s NPI number?
Dena Thamsopit, O.D.'s National Provider Identifier (NPI) is 1740410307, issued on Jul 16, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Dena Thamsopit, O.D. located?
The NPPES record lists a practice address at 4355 Phelan RD, Phelan, CA, 92371. Phone: (760) 868-2020. Providers update this record themselves, so call before visiting.
How can I verify Dena Thamsopit, O.D.'s license?
NPPES lists California license number 13806, as entered by the provider. 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.