Quick answers
- Does Jennifer L. Armstrong accept Medicare assignment?
- Yes. Medicare's clinician data says Jennifer L. Armstrong accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Jennifer L. Armstrong see?
- In 2024, CMS data shows 1,030 Original Medicare patients and 190,886 services for Jennifer L. Armstrong. This counts Original Medicare only and measures volume, not quality.
- What is Jennifer L. Armstrong's NPI number?
- 1588624472. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Jennifer L. Armstrong, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,030 |
|---|---|
| Services billed to Medicare | 190,886 |
| Different services or procedures | 106 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Injection, pembrolizumab, 1 mg (J9271)14,201 services
- Injection, denosumab, 1 mg (J0897)10,260 services
- Injection, fosaprepitant, 1 mg (J1453)9,000 services
- Injection, ferric derisomaltose, 10 mg (J1437)4,800 services
- Injection, epoetin alfa, (for non-esrd use), 1000 units (J0885)4,380 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Ischemic heart disease40%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)38%
- Chronic kidney disease30%
Hospitals where Jennifer L. Armstrong works
Medicare's Facility Affiliation Data lists Jennifer L. Armstrong at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Bryn Mawr HospitalBryn Mawr, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390139
- Chester County HospitalWest Chester, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390179
- Main Line Hospital LankenauWynnewood, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390195
- Paoli HospitalPaoli, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390153
- Riddle Memorial HospitalMedia, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390222
Practice locations
Addresses where Jennifer L. Armstrong is enrolled with Medicare (CMS data updated October 2, 2026).
- 2 Industrial Blvd, Suite 110Paoli, PA 19301 (610) 725‑0650
- 255 W Lancaster Ave, Suite 330Paoli, PA 19301 (610) 786‑3200
- 599 Arcola RdCollegeville, PA 19426 (610) 560‑8418
Group practices
Medicare enrollment lists Jennifer L. Armstrong as a member of these groups (CMS data updated October 2, 2026).
- Main Line Healthcare1,184 clinicians in the group
- Paoli Hematology-Oncology Associates PC2 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Paoli
Clinicians with the same Medicare primary specialty in Paoli, PA — not a recommendation.
Other clinicians in Main Line Healthcare
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Perelman School Of Med At The University Of Pennsylvania |
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588624472 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians