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

Dr. Stephen Russell Chun, OD, FAAO

Individual provider Optometrist · NPI 1942366133

Dr. Stephen Russell Chun, OD, FAAO is registered under Optometry in Berkeley, California. Graduated from Berkeley Northeastern State University - College of Medicine in 1974, 52 years ago. Practices with Regents of the University of California at Berkeley, a 58-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
52
Trained at
Berkeley Northeastern State University - College of Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
7
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

2414 Shattuck Ave
Berkeley, CA 94704-2023
Phone: (510) 843-1228
Fax: (510) 524-1062
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Vision Therapy Optometrist (primary) Taxonomy 152WV0400X · Licence 5835TLG (CA)
Optometrist Taxonomy 152W00000X · Licence 5835TLG (CA)
Corneal and Contact Management Optometrist Taxonomy 152WC0802X · Licence 5835TLG (CA)
Low Vision Rehabilitation Optometrist Taxonomy 152WL0500X · Licence 5835TLG (CA)
Pediatric Optometrist Taxonomy 152WP0200X · Licence 5835TLG (CA)
Sports Vision Optometrist Taxonomy 152WS0006X · Licence 5835TLG (CA)
Occupational Vision Optometrist Taxonomy 152WX0102X · Licence 5835TLG (CA)

Record details

NPI number1942366133
Entity typeIndividual (Type 1)
GenderMale
Credentials OD , FAAO
Sole proprietorNo
NPI enumeratedDecember 29, 2006
Last updated in NPPESSeptember 11, 2025

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolBERKELEY NORTHEASTERN STATE UNIVERSITY - COLLEGE OF MEDICINE
Graduated 1974 (52 years in practice)
Group practice Regents Of The University Of California At Berkeley — 58 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients76
Services billed 123 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $24 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Regents of the University of California at Berkeley

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 58 clinicians in the practice; 12 are shown here.

Other providers in Berkeley