Payam Aghassi, MD
NPI 1093704298ActiveIndividual· Internal Medicine, Pulmonary Disease· Leominster, MA
Internal Medicine, Pulmonary Disease (MD) with Mass Lung and Allergy PC, practicing in Leominster, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $1,803,824 for 2,975 claims, against $367,051 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 21 companies reporting payments in 2025, $2,536 in all, mostly food and beverage. Lists Athol Memorial Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1093704298 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 19, 2005 |
| Last updated in NPPES | Apr 17, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 216511 | MA |
| Internal Medicine | 207R00000X | 216511 | MA |
| Internal Medicine, Allergy & Immunology | 207RA0201X | 216511 | MA |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 216511 | MA |
| Internal Medicine, Sleep Medicine | 207RS0012X | #216511 | 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 - Pulmonary Disease (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,471 |
|---|---|
| Services billed | 3,643 across 35 procedure codes |
| Paid by Medicare | $367,051 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,975 · 4,094 30-day fills |
|---|---|
| Patients | 556 |
| Total drug cost | $1,803,824 |
| Generic share | 31% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
Medical group
- Mass Lung and Allergy PCLeominster, MA · 10 clinicians
Hospital affiliations
- Athol Memorial HospitalAthol, MA
- Heywood Hospital -Gardner, MA
- Umass Memorial Health - Harrington HospitalSouthbridge, MA
- Umass Memorial Healthalliance HospitalsLeominster, MA
- Umass Memorial Medical Center/University CampusWorcester, MA
Industry payments (Open Payments)
- 2025$2,536 · 126 payments from 21 companies
- 2024$2,197 · 106 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $716.53 | 37 |
| Glaxosmithkline, LLC. | $533.41 | 32 |
| Takeda Pharmaceuticals U.S.A., Inc. | $212.82 | 10 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $164.36 | 8 |
| Actelion Pharmaceuticals US, Inc. | $133.40 | 5 |
What the 2025 payments were for
- Food and Beverage$2,536 · 126 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Pulmonary Disease providers in Leominster
- 1518092485
- 1679734545
- 1669463303
- 1659534501
- 1811153489
- 1417905720
- 1841485695
- 1871567149
All Internal Medicine, Pulmonary Disease providers in Massachusetts →