James Roy Knowles, M.D.
NPI 1053306001ActiveIndividual· Ophthalmology· Beavercreek, OH
Ophthalmology (M.D.) in Beavercreek, Ohio, trained at Mayo Medical School (class of 1984). In 2024 Medicare paid $248,638 for 636 patients, and Part D covered 2,062 of their prescriptions, 64% of them generic. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $35.73 in all, mostly food and beverage.
Overview
| NPI | 1053306001 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 15, 2005 |
| Last updated in NPPES | Feb 8, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 35-08-5811-K | OH |
| Ophthalmology | 207W00000X | 42080 | TN |
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 (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 636 |
|---|---|
| Services billed | 2,164 across 16 procedure codes |
| Paid by Medicare | $248,638 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,062 · 2,905 30-day fills |
|---|---|
| Patients | 670 |
| Total drug cost | $76,781 |
| Generic share | 64% of claims |
Education and affiliations
| Medical school | Mayo Medical School |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Ophthalmology |
Medical group
- Stahl Vision IncBeavercreek, OH · 4 clinicians
Industry payments (Open Payments)
- 2025$35.73 · 2 payments from 2 companies
- 2024$15.80 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $21.43 | 1 |
| Johnson & Johnson Surgical Vision, Inc. | $14.30 | 1 |
What the 2025 payments were for
- Food and Beverage$35.73 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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