John Michael O'Block, O.D.
NPI 1427200724ActiveIndividual· Optometrist· Derry, NH
Optometrist (O.D.) in Derry, New Hampshire, trained at New England College of Optometry (class of 2004). In 2024 Medicare paid $61,304 for 515 patients, and Part D covered 265 of their prescriptions, 58% of them generic. Alcon Vision LLC was the largest of 10 companies reporting payments in 2025, $711.90 in all, mostly food and beverage.
Overview
| NPI | 1427200724 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | Yes |
| NPI issued | Oct 17, 2008 |
| Last updated in NPPES | May 7, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 0823 | NH |
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 (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 515 |
|---|---|
| Services billed | 930 across 16 procedure codes |
| Paid by Medicare | $61,304 |
Part D prescriptions in 2024
| Prescriptions (claims) | 265 · 366 30-day fills |
|---|---|
| Patients | 111 |
| Total drug cost | $37,014 |
| Generic share | 58% of claims |
Education and affiliations
| Medical school | New England College of Optometry |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Optometry |
Medical group
- Spindel Eye Associates PCWindham, NH · 12 clinicians
Industry payments (Open Payments)
- 2025$711.90 · 30 payments from 10 companies
- 2024$300.96 · 11 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $173.94 | 5 |
| Abbvie Inc. | $153.35 | 6 |
| Sun Pharmaceutical Industries Inc. | $134.78 | 9 |
| Coopervision Inc. | $58.30 | 3 |
| Glaukos Corporation | $49.76 | 1 |
What the 2025 payments were for
- Food and Beverage$711.90 · 30 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Optometrist providers in Derry
- 1831276922
- 1336226547
- 1295336030
- 1861579070
- 1063145233
- 1487541629
- 1952347080
- 1598847907