NPPES file of Aug 9, 2026

Et-Tsu Chen, MD

Radiation Oncology Physician · Berwyn, PA

Et-Tsu Chen, MD is a radiation oncology physician with a practice address in Berwyn, Pennsylvania, and NPI 1508894510, issued on Jun 29, 2006. Check the license (Pennsylvania MD048677L, 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
1508894510
Name
Et-Tsu Chen
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
MD048677L PA
Self-reported in NPPES; status is on the state search
Practice location
1001 Chesterbrook Blvd, Berwyn, PA 19312
Phone
(610) 576-7500
Enumerated
Jun 29, 2006
Record last updated
Aug 12, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicaid ID
0016600060005 PA
Medicare enrollment
Enrolled (PECOS I20061229000003); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1989
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 1001 Chesterbrook Blvd

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

  1. Jana Abraham, MDEndocrinology, Diabetes & Metabolism Physician1043663966
  2. Ronald Barnett, MDPulmonary Disease Physician1477515815
  3. Lisa Broody, CRNPFamily Nurse Practitioner1487737417
  4. Margaret Corboy, MDInternal Medicine Physician1891956280
  5. Louis Destefano, MDFamily Medicine Physician1366474694
  6. Amanda Farrell, MSN, CRNPPrimary Care Nurse Practitioner1528832656

Verify Et-Tsu Chen 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 MD048677L
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2% fewer Medicare Part D claims than the average radiation oncology physician in 2024

131 Medicare Part D claims for 54 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Et-Tsu Chen131
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl48 claims
  2. Oxycodone Hcl11 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): 85.5 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 score73.6
  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).

Bills Medicare through one group practice

  1. University OF Penn - Medical GroupPhiladelphia, PA

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

Radiation Oncology Physician providers in Pennsylvania

There are 383 radiation oncology physician records in Pennsylvania.

Other radiation oncology physician records in Pennsylvania

  1. Stephen Abel, DOClarion, PA1033642319
  2. Manuj Agarwal, MDPhiladelphia, PA1316262363
  3. Peter Ahn, M.D.Philadelphia, PA1710117106
  4. Ayesha Ali, MDLancaster, PA1538663851
  5. Fiori AliteLewisburg, PA1811289127
  6. Michelle Alonso-Basanta, MDPhiladelphia, PA1831393800
  7. Antonio Ambrad, M.D.Pittsburgh, PA1205837143
  8. Penny Anderson, M.D.Philadelphia, PA1811969868
  9. David Andolino, MDEaston, PA1477715407
  10. Charles Andrews, MDAllentown, PA1427031657

Common questions

What is Et-Tsu Chen, MD's NPI number?

Et-Tsu Chen, MD's National Provider Identifier (NPI) is 1508894510, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Et-Tsu Chen, MD located?

The NPPES record lists a practice address at 1001 Chesterbrook Blvd, Berwyn, PA, 19312. Phone: (610) 576-7500. Providers update this record themselves, so call before visiting.

How can I verify Et-Tsu Chen, MD's license?

NPPES lists Pennsylvania license number MD048677L, 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 Et-Tsu Chen, MD prescribe under Medicare Part D?

In 2024, Et-Tsu Chen, MD had 131 Medicare Part D claims for 54 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

What is Et-Tsu Chen, MD's MIPS final score?

The 2023 MIPS final score is 85.5 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.