Donald A. Mahler, M.D.
NPI 1518075159ActiveIndividual· Internal Medicine, Pulmonary Disease· Lebanon, NH
Internal Medicine, Pulmonary Disease (M.D.) in Lebanon, New Hampshire, licensed in NH, with an NPI issued in August 2006. Part D covered 900 prescriptions written in 2024, 25% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 4 companies reporting payments in 2025, $10,764 in all, mostly consulting fees.
Overview
| NPI | 1518075159 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 25, 2006 |
| Last updated in NPPES | Jul 8, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 6535 | NH |
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 - Internal Medicine (NH) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 900 · 1,118 30-day fills |
|---|---|
| Patients | 134 |
| Total drug cost | $744,965 |
| Generic share | 25% of claims |
Industry payments (Open Payments)
- 2025$10,764 · 20 payments from 4 companies
- 2024$13,123 · 14 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $7,924 | 13 |
| Genzyme Corporation | $2,250 | 1 |
| Viatris Specialty LLC | $499.36 | 5 |
| Astrazeneca Uk Limited | $90.25 | 1 |
What the 2025 payments were for
- Consulting Fee$8,694 · 4 payments
- Travel and Lodging$1,145 · 4 payments
- Food and Beverage$587.61 · 11 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$337.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 27 pulmonologists in Lebanon · All pulmonologists in New Hampshire