Mark M. Ruff, OD
NPI 1831120096ActiveIndividual· Optometrist· Marietta, OH
Optometrist (OD) in Marietta, Ohio, trained at Southern College of Optometry (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $495,718 for 913 claims, against $47,595 paid for services in 2024. Coopervision Inc. was the largest of 5 companies reporting payments in 2025, $430.42 in all, mostly food and beverage.
Overview
| NPI | 1831120096 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | No |
| NPI issued | Jul 6, 2006 |
| Last updated in NPPES | Jan 29, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 3964 | OH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Optometry (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 422 |
|---|---|
| Services billed | 1,009 across 21 procedure codes |
| Paid by Medicare | $47,595 |
Part D prescriptions in 2024
| Prescriptions (claims) | 913 · 1,581 30-day fills |
|---|---|
| Patients | 187 |
| Total drug cost | $495,718 |
| Generic share | 66% of claims |
Education and affiliations
| Medical school | Southern College of Optometry |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Optometry |
Medical groups
- Eye Care Associates of Marietta LLCMarietta, OH · 6 clinicians
- Eye Care of McConnelsville LLCMcConnelsville, OH · 3 clinicians
- Eye Care Associates of Beverly LLCBeverly, OH · 2 clinicians
Industry payments (Open Payments)
- 2025$430.42 · 6 payments from 5 companies
- 2024$161.84 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Coopervision Inc. | $170.71 | 2 |
| Genmab U.S., Inc. | $125.00 | 1 |
| Dompe US, Inc. | $96.15 | 1 |
| Biotissue Holdings Inc. | $25.71 | 1 |
| Lkc Technologies, Inc. | $12.85 | 1 |
What the 2025 payments were for
- Food and Beverage$430.42 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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