NPPES file of Aug 9, 2026

Jennifer L. Armstrong, MD

Medical Oncology Physician · Paoli, PA

Jennifer L. Armstrong, MD is a medical oncology physician with a practice address in Paoli, Pennsylvania, and NPI 1588624472, issued on Mar 24, 2006. Check the license (Pennsylvania MD424092, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588624472
Name
Jennifer L. Armstrong
Credential
MD
Primary taxonomy
Medical Oncology Physician 207RX0202X
License numbers
MD424092 PA
424092 PA
Self-reported in NPPES; status is on the state search
Practice location
255 W Lancaster Ave, Paoli, PA 19301
Phone
(484) 565-1600
Enumerated
Mar 24, 2006
Record last updated
Jan 9, 2026
Fax
(484) 565-8814
Medicare enrollment
Enrolled (PECOS I20040712000708); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 1998
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 255 W Lancaster Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Omar Abousoud, MDDiagnostic Radiology Physician1457642019
  2. Kristie Adamo, RN, CRNA, MSNCertified Registered Nurse Anesthetist1861413288
  3. Robin Alsher, MDInternal Medicine Physician1578140752
  4. Analisa Ambrosi, PA-CPhysician Assistant1306198445
  5. Ganiyu Amusa, M.D.Anesthesiology Physician1649537788
  6. Sumanth Atluri, MDDiagnostic Radiology Physician1770617128

Verify Jennifer L. Armstrong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD424092
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

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37% fewer Medicare Part D claims than the average medical oncology physician in 2024

445 Medicare Part D claims for 127 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.

  1. Jennifer Armstrong445
  2. Specialty average703

Most prescribed

  1. Anastrozole50 claims
  2. Acyclovir29 claims
  3. Xarelto29 claims
  4. Eliquis28 claims
  5. Tamoxifen Citrate23 claims
  6. Dexamethasone22 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score97.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $4,339.07

159 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jennifer Armstrong$4,339
  2. Specialty average$11,773

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Main Line HealthcarePaoli, PA
  2. Paoli Hematology-Oncology Associates PCPaoli, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jennifer L. Armstrong among 265 medical oncology physician records in Pennsylvania

Jennifer L. Armstrong, MD is one of 265 medical oncology physician records with a practice address in Pennsylvania. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 49% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1998 · median 2002 among the 189 with a school on file
  • Record last updated2026 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in Pennsylvania

There are 265 medical oncology physician records in Pennsylvania.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Haixia Qin, MDPaoli, PA 193011952697286
  2. Pallavi Rastogi, MDPaoli, PA 193011538125992
  3. Grayce SeligPaoli, PA 193011497242069
  4. Calvin Lu, MDExton, PA 193411922105758
  5. William Luginbuhl, MDExton, PA 193411922105741
  6. Michael Mikhail, M.D.Malvern, PA 193551043384035
  7. Michele Tedeschi, MDWest Chester, PA 193801366533275
  8. Barry Singer, MDNorristown, PA 194011588723894

Common questions

What is Jennifer L. Armstrong, MD's NPI number?

Jennifer L. Armstrong, MD's National Provider Identifier (NPI) is 1588624472, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer L. Armstrong, MD located?

The NPPES record lists a practice address at 255 W Lancaster Ave, Paoli, PA, 19301. Phone: (484) 565-1600. Providers update this record themselves, so call before visiting.

How can I verify Jennifer L. Armstrong, MD's license?

NPPES lists Pennsylvania license number MD424092, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jennifer L. Armstrong, MD prescribe under Medicare Part D?

In 2024, Jennifer L. Armstrong, MD had 445 Medicare Part D claims for 127 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.

What is Jennifer L. Armstrong, MD's MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.