Adam G. Chun, MD
Ophthalmology Physician · Panorama City, CA
Adam G. Chun, MD is an ophthalmology physician with a practice address in Panorama City, California, and NPI 1801025309, issued on Jul 7, 2009. Check the license (California A123196, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Adam G. Chun
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- A123196 CA
LL31963 SC
Self-reported in NPPES; status is on the state search - Practice location
- 13652 Cantara St, Panorama City, CA 91402
- Phone
- (626) 538-5407
- Enumerated
- Jul 7, 2009
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20131206001153); accepts Medicare assignment
- Medical or professional school
- Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 2008
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 13652 Cantara St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Adam G. Chun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A123196Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average ophthalmology physician in 2024
3,119 Medicare Part D claims for 935 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.
Most prescribed
- Latanoprost635 claims
- Prednisolone Acetate588 claims
- Ofloxacin400 claims
- Cyclosporine356 claims
- Brimonidine Tartrate267 claims
- Dorzolamide-Timolol186 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.
Industry payments in 2024: $181.62
4 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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
- Southern California Permanente Medical GroupPanorama City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adam G. Chun among 2,899 ophthalmology physician records in California
Adam G. Chun, 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 2009, is newer than 72% of them.
- NPI issued2009 · 72% of these records are older, 26% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2008 · median 2001 among the 1,907 with a school on file
- Record last updated2021 · 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).
13 ophthalmology physician records list a practice address in Panorama City
They are 13 of the 1,412 NPPES records with a practice address in Panorama City, and 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Panorama City → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Farzin Avaz, MDPanorama City, CA 914021770642399
- Shivani Gupta, M.D.Panorama City, CA 914021194920595
- Navid Khodadadi, MDPanorama City, CA 914021083781843
- Ani Khondkaryan, M.D.Panorama City, CA 914021033308358
- Waiming Lee-Walline, MDPanorama City, CA 914021952459935
- Magdalena Manchee, MDPanorama City, CA 914021194873117
- Laurence Roer, MDPanorama City, CA 914021184791097
- Ronald Rosen, MDPanorama City, CA 914021780743344
Common questions
What is Adam G. Chun, MD's NPI number?
Adam G. Chun, MD's National Provider Identifier (NPI) is 1801025309, issued on Jul 7, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Adam G. Chun, MD located?
The NPPES record lists a practice address at 13652 Cantara St, Panorama City, CA, 91402. Phone: (626) 538-5407. Providers update this record themselves, so call before visiting.
How can I verify Adam G. Chun, MD's license?
NPPES lists California license number A123196, 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 Adam G. Chun, MD prescribe under Medicare Part D?
In 2024, Adam G. Chun, MD had 3,119 Medicare Part D claims for 935 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions 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.