John David Lonsdale, M.D.
NPI 1669583662ActiveIndividual· Ophthalmology· Lewiston, ME
Ophthalmology (M.D.) in Lewiston, Maine, licensed in ME, with an NPI issued in August 2006. Their prescriptions cost Medicare Part D more than their services did: $1,159,771 for 4,244 claims, against $125,719 paid for services in 2024. Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $109.11 in all, mostly food and beverage.
Overview
| NPI | 1669583662 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 31, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 011989 | ME |
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 (ME) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 683 |
|---|---|
| Services billed | 2,561 across 44 procedure codes |
| Paid by Medicare | $125,719 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,244 · 7,626 30-day fills |
|---|---|
| Patients | 955 |
| Total drug cost | $1,159,771 |
| Generic share | 53% of claims |
Industry payments (Open Payments)
- 2025$109.11 · 5 payments from 3 companies
- 2024$387.94 · 23 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $68.47 | 3 |
| Biotissue Holdings Inc. | $24.65 | 1 |
| Bausch & Lomb Americas Inc. | $15.99 | 1 |
What the 2025 payments were for
- Food and Beverage$109.11 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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