Karen Nguyen
Optometrist · Berkeley, CA
Karen Nguyen is an optometrist with a practice address in Berkeley, California, and NPI 1598657041, issued on Jul 18, 2025. Check the license (California 36079, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Nguyen
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 36079 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Minor Hall, Berkeley, CA 94720
- Phone
- (510) 642-2020
- Enumerated
- Jul 18, 2025
- Record last updated
- Jul 18, 2025
- Medicare enrollment
- Enrolled (PECOS I20250915003512); accepts Medicare assignment
- Medical or professional school
- Southern California College Of Optometry, 2025
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 200 Minor Hall
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Montserrat Astorino, ODOptometrist1811540198
- Sohaila Baheer, ODOptometrist1306641758
- Amrit Bilkhu, ODOptometrist1396390134
- Jessica Broodryk, ODOptometrist1588289474
- Olivia Burger, ODOptometrist1780305953
- Yung Fen Chen, ODOptometrist1215626056
Verify Karen Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 36079Check 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
- Regents OF The University OF California AT BerkeleyBerkeley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Nguyen among 8,308 optometrist records in California
Karen Nguyen 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 2025, is newer than 96% of them.
- NPI issued2025 · 96% of these records are older, 1% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2025 · median 2008 among the 3,573 with a school on file
- Record last updated2025 · 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).
126 optometrist records list a practice address in Berkeley
They are 126 of the 4,898 NPPES records with a practice address in Berkeley, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Berkeley → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Dennis Burger, O.D.Berkeley, CA 947201942357181
- Gunilla Haegerstrom-Portnoy, OD, PHDBerkeley, CA 947201053458745
- Kathryn Johnson, O.D.Berkeley, CA 947201578630141
- Billie Knight, O.D.Berkeley, CA 947201538222096
- Anne Moy, O.D.Berkeley, CA 947201184788713
- Edward Revelli, O.D.Berkeley, CA 947201144367830
- Nina Tran, O.D.Berkeley, CA 947201629082318
- Kathy Tran, O.D.Berkeley, CA 947201346355401
Common questions
What is Karen Nguyen's NPI number?
Karen Nguyen's National Provider Identifier (NPI) is 1598657041, issued on Jul 18, 2025. An NPI identifies a provider in billing; it is not a license.
Where is Karen Nguyen located?
The NPPES record lists a practice address at 200 Minor Hall, Berkeley, CA, 94720. Phone: (510) 642-2020. Providers update this record themselves, so call before visiting.
How can I verify Karen Nguyen's license?
NPPES lists California license number 36079, 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.