John James Dagianis, M.D.
NPI 1972508026ActiveIndividual· Ophthalmology· Nashua, NH
Ophthalmology (M.D.) in Nashua, New Hampshire, trained at University of Cincinnati College of Medicine (class of 1976). In 2024 Medicare paid $243,289 for 1,044 patients, and Part D covered 1,984 of their prescriptions, 64% of them generic. Bausch & Lomb Americas Inc. was the largest of 14 companies reporting payments in 2025, $1,337 in all, mostly food and beverage.
Overview
| NPI | 1972508026 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 16, 2005 |
| Last updated in NPPES | Aug 11, 2022 |
| Certified by provider | Aug 11, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 6192 | NH |
| Ophthalmology | 207W00000X | 57317 | MA |
| Ophthalmology, Glaucoma Specialist | 207WX0009X | 6192 | NH |
| Ophthalmology, Glaucoma Specialist | 207WX0009X | 57317 | MA |
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 (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,044 |
|---|---|
| Services billed | 3,630 across 41 procedure codes |
| Paid by Medicare | $243,289 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,984 · 3,586 30-day fills |
|---|---|
| Patients | 447 |
| Total drug cost | $361,315 |
| Generic share | 64% of claims |
Education and affiliations
| Medical school | University of Cincinnati College of Medicine |
|---|---|
| Graduation year | 1976 |
| Medicare specialty | Ophthalmology |
Medical group
- Nashua Eye Associates, P.A.Nashua, NH · 20 clinicians
Industry payments (Open Payments)
- 2025$1,337 · 49 payments from 14 companies
- 2024$2,157 · 59 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bausch & Lomb Americas Inc. | $391.09 | 11 |
| Alcon Vision LLC | $292.76 | 9 |
| Abbvie Inc. | $170.22 | 7 |
| Astellas Pharma US Inc | $105.34 | 4 |
| Tarsus Pharmaceuticals, Inc. | $63.84 | 2 |
What the 2025 payments were for
- Food and Beverage$1,337 · 49 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Ophthalmology providers in Nashua
- 1801891247
- 1972951986
- 1891790986
- 1205198629
- 1811992993
- 1619972015