Brian Chon, MD
Ophthalmology Physician · Walnut Creek, CA
Brian Chon, MD is an ophthalmology physician with a practice address in Walnut Creek, California, and NPI 1679990626, issued on Mar 27, 2014. Check the license (California C194049, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brian Chon
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- C194049 CA
Self-reported in NPPES; status is on the state search - Practice location
- 320 Lennon LN, Walnut Creek, CA 94598
- Phone
- (925) 906-2010
- Enumerated
- Mar 27, 2014
- Record last updated
- Apr 20, 2024
- Medicare enrollment
- Enrolled (PECOS I20240412002729); accepts Medicare assignment
- Medical or professional school
- Duke University School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 320 Lennon LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joel Acab, MDInternal Medicine Physician1518405661
- Vitas Alekna, MDOphthalmology Physician1770661860
- Mary Andre, P.T.Physical Therapist1740344779
- Lynn Arsenault, MDPediatrics Physician1972681054
- Ashley Batchelder, DPTPhysical Therapist1851450936
- Cynthia Bellitt, R.N.N.P.Women's Health Nurse Practitioner1851464630
Verify Brian Chon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C194049Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average ophthalmology physician in 2024
139 Medicare Part D claims for 93 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Neomycin-Polymyxin-Dexameth54 claims
- Erythromycin36 claims
- Oxycodone-Acetaminophen11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 72.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $52.25
2 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Permanente Medical Group IncRichmond, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Chon among 2,899 ophthalmology physician records in California
Brian Chon, MD is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 82% of them.
- NPI issued2014 · 82% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2014 · median 2001 among the 1,907 with a school on file
- Record last updated2024 · 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 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Walnut Creek → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- David Demartini, M.D.Walnut Creek, CA 945981437134855
- James Dowling, M.D.Walnut Creek, CA 945981891757506
- Vahid Feiz, M.D.Walnut Creek, CA 945981083698732
- David Gilbert, MDWalnut Creek, CA 945981033297536
- Jenny Jacq, MDWalnut Creek, CA 945981477508927
- Ethan Kutzscher, MDWalnut Creek, CA 945981700881661
- Michelle Nee, MDWalnut Creek, CA 945981093893182
- Stephanie Po, MDWalnut Creek, CA 945981003994187
Common questions
What is Brian Chon, MD's NPI number?
Brian Chon, MD's National Provider Identifier (NPI) is 1679990626, issued on Mar 27, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Brian Chon, MD located?
The NPPES record lists a practice address at 320 Lennon LN, Walnut Creek, CA, 94598. Phone: (925) 906-2010. Providers update this record themselves, so call before visiting.
How can I verify Brian Chon, MD's license?
NPPES lists California license number C194049, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian Chon, MD prescribe under Medicare Part D?
In 2024, Brian Chon, MD had 139 Medicare Part D claims for 93 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Brian Chon, MD's MIPS final score?
The 2023 MIPS final score is 72.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.