Adam Chun, MD
NPI 1801025309 · Ophthalmology Physician · Panorama City, CA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Adam Chun, MD is a Ophthalmology Physician provider in Panorama City, CA (NPI 1801025309).
Provider details
- NPI number
- 1801025309
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- LL31963 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 635 | 228 |
| Prednisolone Acetate | 588 | 396 |
| Ofloxacin | 400 | 297 |
| Cyclosporine | 356 | 126 |
| Brimonidine Tartrate | 267 | 105 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 186 | 74 |
| Timolol Maleate | 139 | 55 |
| Fluorometholone | 114 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$182 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-07-07
- Last updated
- 2021-12-02
Frequently asked questions
- What is Adam Chun's NPI number?
- Adam Chun's National Provider Identifier (NPI) is 1801025309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Adam Chun's specialty?
- Adam Chun is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Adam Chun located?
- Adam Chun's practice location on file with NPPES is 13652 Cantara St, Panorama City, CA 91402-5423.
- What is Adam Chun's phone number?
- The practice phone number listed in the NPPES registry for Adam Chun is (626) 538-5407.
- Does Adam Chun accept Medicare?
- Adam Chun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Adam Chun's NPI active?
- Yes — Adam Chun's NPI (1801025309) is active in the NPPES registry as of the last update on 2021-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.