Dennis Alvin Chuck, MD
NPI 1033183413ActiveIndividual· Ophthalmology· Pomona, CA
Ophthalmology (MD) in Pomona, California, licensed in CA, with an NPI issued in February 2006. Their prescriptions cost Medicare Part D more than their services did: $240,179 for 4,779 claims, against $159,251 paid for services in 2024. Bausch & Lomb Americas Inc. was the largest of 8 companies reporting payments in 2025, $469.19 in all, mostly food and beverage. Lists Pomona Valley Hospital Medical Center as a hospital affiliation.
Overview
| NPI | 1033183413 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 14, 2006 |
| Last updated in NPPES | Feb 8, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | G42101 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 787 |
|---|---|
| Services billed | 1,522 across 19 procedure codes |
| Paid by Medicare | $159,251 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,779 · 7,762 30-day fills |
|---|---|
| Patients | 988 |
| Total drug cost | $240,179 |
| Generic share | 61% of claims |
Education and affiliations
| Graduation year | 1980 |
|---|---|
| Medicare specialty | Ophthalmology |
Hospital affiliation
- Pomona Valley Hospital Medical CenterPomona, CA
Industry payments (Open Payments)
- 2025$469.19 · 19 payments from 8 companies
- 2024$236.68 · 9 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bausch & Lomb Americas Inc. | $106.59 | 5 |
| Amgen Inc. | $88.62 | 3 |
| Sight Sciences, Inc. | $71.45 | 3 |
| Oyster Point Pharma, Inc. | $64.73 | 3 |
| Alcon Vision LLC | $45.09 | 2 |
What the 2025 payments were for
- Food and Beverage$469.19 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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