NPPES file of Aug 9, 2026

Yen-Lin E. Chen, MD

Radiation Oncology Physician · Boston, MA

Yen-Lin E. Chen, MD is a radiation oncology physician with a practice address in Boston, Massachusetts, and NPI 1902842966, issued on Jun 20, 2006. Check the license (Massachusetts 211328, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1902842966
Name
Yen-Lin E. Chen
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
211328 MA
Self-reported in NPPES; status is on the state search
Practice location
100 Blossom Street Cox LL, Boston, MA 02114
Phone
(617) 724-1160
Enumerated
Jun 20, 2006
Record last updated
Aug 10, 2012 (not updated in 14 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Verify Yen-Lin E. Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 211328
    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 Massachusetts 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

80% fewer Medicare Part D claims than the average radiation oncology physician in 2024

27 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Yen-Lin Chen27
  2. Specialty average134

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.

Yen-Lin E. Chen among 241 radiation oncology physician records in Massachusetts

Yen-Lin E. Chen, MD is one of 241 radiation oncology physician records with a practice address in Massachusetts. 77% 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 14% of them.

  • NPI issued2006 · 14% of these records are older, 59% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileNo · 71% of these records are
  • Record last updated2012 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Massachusetts

There are 241 radiation oncology physician records in Massachusetts.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Annie Chan, MDBoston, MA 021141306874169
  2. Karen De Amorim Bernstein, M.D.Boston, MA 021141104998764
  3. Theodore Hong, MDBoston, MA 021141457342917
  4. Melin Khandekar, M.D., PH.D.Boston, MA 021141174669980
  5. Ellen Kornmehl, MDBoston, MA 021141740270487
  6. Norbert Liebsch, MD PHDBoston, MA 021141801887948
  7. Shannon Macdonald, MDBoston, MA 021141497713853
  8. David Miyamoto, M.D., PH.D.Boston, MA 021141689724171

Common questions

What is Yen-Lin E. Chen, MD's NPI number?

Yen-Lin E. Chen, MD's National Provider Identifier (NPI) is 1902842966, issued on Jun 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Yen-Lin E. Chen, MD located?

The NPPES record lists a practice address at 100 Blossom Street Cox LL, Boston, MA, 02114. Phone: (617) 724-1160. Providers update this record themselves, so call before visiting.

How can I verify Yen-Lin E. Chen, MD's license?

NPPES lists Massachusetts license number 211328, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Yen-Lin E. Chen, MD prescribe under Medicare Part D?

In 2024, Yen-Lin E. Chen, MD had 27 Medicare Part D claims; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

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.