John T. Leffers, O.D.
NPI 1235369349ActiveIndividual· Optometrist· Providence, RI
Optometrist (O.D.) with Mass Optometric Associates, PLLC and 1 other group, practicing in Providence, Rhode Island. Medicare paid $1,333 for services to 17 patients in 2024. Glaukos Corporation was the largest of 2 companies reporting payments in 2025, $265.37 in all, mostly food and beverage.
Overview
| NPI | 1235369349 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | Jul 23, 2009 |
| Last updated in NPPES | Jul 23, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | ODTG00540 | RI |
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 (MA); Practitioner - Optometry (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 17 |
|---|---|
| Services billed | 18 across 2 procedure codes |
| Paid by Medicare | $1,333 |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Optometry |
Medical groups
- Mass Optometric Associates, PLLCBraintree, MA · 52 clinicians
- Rhode Island Optometrics LLCCranston, RI · 9 clinicians
Industry payments (Open Payments)
- 2025$265.37 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaukos Corporation | $178.10 | 1 |
| Johnson & Johnson Vision Care, Inc. | $87.27 | 1 |
What the 2025 payments were for
- Food and Beverage$265.37 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 79 optometrists in Providence · All optometrists in Rhode Island