Mark E. Bernthal, OD
NPI 1811991391ActiveIndividual· Optometrist· St Clair Shores, MI
Optometrist (OD) in St Clair Shores, Michigan, trained at Illinois College of Optometry at Chicago (class of 1979). Their prescriptions cost Medicare Part D more than their services did: $19,908 for 21 claims, against $7,593 paid for services in 2024. Oyster Point Pharma, Inc. reported $44.47 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1811991391 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | No |
| NPI issued | Jun 13, 2005 |
| Last updated in NPPES | Jun 11, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 4901002685 | MI |
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 - Optometry (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 107 |
|---|---|
| Services billed | 110 across 5 procedure codes |
| Paid by Medicare | $7,593 |
Part D prescriptions in 2024
| Prescriptions (claims) | 21 · 41 30-day fills |
|---|---|
| Total drug cost | $19,908 |
Education and affiliations
| Medical school | Illinois College of Optometry at Chicago |
|---|---|
| Graduation year | 1979 |
| Medicare specialty | Optometry |
Medical group
- Richard C Mertz Jr MD PCSaint Clair Shores, MI · 5 clinicians
Industry payments (Open Payments)
- 2024$44.47 · 2 payments from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Oyster Point Pharma, Inc. | $44.47 | 2 |
What the 2024 payments were for
- Food and Beverage$44.47 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Optometrist providers in St Clair Shores
- 1336280320