Stewart Alan Lonky, M.D.
NPI 1033145941ActiveIndividual· Internal Medicine, Pulmonary Disease· Los Angeles, CA
Internal Medicine, Pulmonary Disease (M.D.) in Los Angeles, California, trained at State University of New York Downstate Medical Center (class of 1971). Their prescriptions cost Medicare Part D more than their services did: $23,030 for 437 claims, against $5,925 paid for services in 2024. Harmony Biosciences LLC reported $99.99 in payments in 2024, mostly education.
Overview
| NPI | 1033145941 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 23, 2006 |
| Last updated in NPPES | Jan 25, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | G025948 | CA |
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 - Pulmonary Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 16 |
|---|---|
| Services billed | 58 across 9 procedure codes |
| Paid by Medicare | $5,925 |
Part D prescriptions in 2024
| Prescriptions (claims) | 437 · 636 30-day fills |
|---|---|
| Patients | 24 |
| Total drug cost | $23,030 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | State University of New York Downstate Medical Center |
|---|---|
| Graduation year | 1971 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Internal Medicine |
Industry payments (Open Payments)
- 2024$99.99 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Harmony Biosciences LLC | $99.99 | 1 |
What the 2024 payments were for
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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