Jennifer L. Armstrong, MD
NPI 1588624472ActiveIndividual· Internal Medicine, Medical Oncology· Paoli, PA
Internal Medicine, Medical Oncology (MD) in Paoli, Pennsylvania, trained at Perelman School of Med at the University of Pennsylvania (class of 1998). In 2024 Medicare paid $3,171,843 for 1,030 patients, and Part D covered 445 of their prescriptions, 72% of them generic. Novartis Pharmaceuticals Corporation was the largest of 39 companies reporting payments in 2025, $4,011 in all, mostly food and beverage.
Overview
| NPI | 1588624472 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 24, 2006 |
| Last updated in NPPES | Jan 9, 2026 |
| Certified by provider | Jan 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | MD424092 | PA |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 424092 | PA |
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 - Hematology/Oncology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,030 |
|---|---|
| Services billed | 190,886 across 106 procedure codes |
| Paid by Medicare | $3,171,843 |
Part D prescriptions in 2024
| Prescriptions (claims) | 445 · 735 30-day fills |
|---|---|
| Patients | 127 |
| Total drug cost | $1,015,872 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | Perelman School of Med at the University of Pennsylvania |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Hematology/Oncology |
Medical groups
- Main Line HealthcareWynewood, PA · 1,184 clinicians
- Paoli Hematology-Oncology Associates PCPaoli, PA · 2 clinicians
Hospital affiliations
- Bryn Mawr HospitalBryn Mawr, PA
- Chester County HospitalWest Chester, PA
- Main Line Hospital LankenauWynnewood, PA
- Paoli HospitalPaoli, PA
- Riddle Memorial HospitalMedia, PA
Other facilities
- Main Line Health Home Care & Hospice - Home HealthHome health agency · Radnor, PA
Industry payments (Open Payments)
- 2025$4,011 · 144 payments from 39 companies
- 2024$4,339 · 161 payments from 36 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $1,263 | 22 |
| Astrazeneca Pharmaceuticals LP | $347.50 | 19 |
| Merck Sharp & Dohme LLC | $194.28 | 8 |
| Daiichi Sankyo Inc. | $163.35 | 13 |
| E.R. Squibb & Sons, L.L.C. | $130.96 | 5 |
What the 2025 payments were for
- Food and Beverage$3,011 · 132 payments
- Long term medical supply or device loan$999.96 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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