Specialty Directory
Ophthalmology in Grass Valley, CA
Federal CMS data for 3 ophthalmology providers practicing in Grass Valley, CA. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.
3
Providers
Median industry payments
$975
3
Ophthalmology Providers
in Grass Valley, CA
$975
Median Industry Payments
per provider (2018–2024)
4,198
Median Medicare Services
fee-for-service claims
How to read this directory: Providers are listed by Medicare service volume, which reflects only
Medicare fee-for-service patients (typically 65+). This does not represent total practice volume.
Industry payments span multiple years and payment types — they are legal and do not indicate wrongdoing.
Ophthalmology includes multiple subspecialties with different practice patterns.
Learn more →
Ophthalmology Providers
NPPES · Open Payments · Medicare| Provider | Medicare Volume | Beneficiaries* | Top Procedure | Industry Payments | Payment Type | Coverage |
|---|---|---|---|---|---|---|
| HAGELE, JOHN M.D. | 4,344 | 3,434 | Comprehensive eye exam, established patient | $1,449 (2018-2024) | Food & Beverage (98%) | Very High |
| ZEALEAR, MATTHEW M.D. | 4,198 | 3,466 | Eye exam, established patient, focused | $857 (2018-2024) | Food & Beverage (100%) | Very High |
| MERCER, KEITH M.D. | 3,027 | 2,724 | Comprehensive eye exam, established patient | $975 (2018-2024) | Food & Beverage (100%) | Very High |
Note: Ophthalmology encompasses multiple subspecialties with different practice patterns.
Differences in payment amounts and procedure volumes may reflect subspecialty focus
rather than practice quality. Consider viewing individual profiles for full context.