John L. Yang, M.D.
Hematology & Oncology Physician · Newton, MA
John L. Yang, M.D. is a hematology & oncology physician with a practice address in Newton, Massachusetts, and NPI 1013949551, issued on Jul 7, 2006. Check the license (Massachusetts 219306, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- John L. Yang
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 219306 MA
Self-reported in NPPES; status is on the state search - Practice location
- 2014 Washington St, Newton, MA 02462
- Phone
- (617) 219-1230
- Enumerated
- Jul 7, 2006
- Record last updated
- Apr 24, 2023
- Fax
- (617) 831-7350
- Medicare enrollment
- Enrolled (PECOS I20040824001032); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 461 in Massachusetts → Look up another NPI →
Also registered at 2014 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Todd Abbott, M.D.Anatomic Pathology & Clinical Pathology Physician1013057454
- Tatiana Abrantes, MDStudent in an Organized Health Care Education/Training Program1962107250
- Maura Adrian, LICSWSocial Worker1083106918
- Davies Agyekum, M.D., PHDAnesthesiology Physician1134651425
- Tarik Alkasab, M.D., PH.D.Diagnostic Radiology Physician1154305803
Verify John L. Yang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 219306Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
415 Medicare Part D claims for 92 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 39 claims were for opioids.
Most prescribed
- Prochlorperazine Maleate58 claims
- Ondansetron Hcl45 claims
- Eliquis31 claims
- Oxycodone Hcl26 claims
- Omeprazole25 claims
- Dexamethasone18 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.
Bills Medicare through 2 group practices
- Massachusetts General Physicians Organization IncBoston, MA
- The General Hospital CorporationBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John L. Yang among 461 hematology & oncology physician records in Massachusetts
John L. Yang, M.D. is one of 461 hematology & oncology physician records with a practice address in Massachusetts. 75% 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, 50% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2001 · median 2004 among the 303 with a school on file
- Record last updated2023 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Massachusetts
There are 461 hematology & oncology physician records in Massachusetts.
All 461 in Massachusetts → Every provider in Newton → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Chryssanthi Kournioti, M.D.Newton, MA 024621912181116
- Revati Rao, M.D.Newton, MA 024621043303688
- Susan SchumerNewton, MA 024621104934926
- Rosa Canoso, M.D.Newton, MA 024651720170137
- Mary Lopresti, DONewton Centre, MA 024591700046885
- Anna Mitus, M.D.Newton, MA 024661356408769
- Howard Fingert, M.D.Chestnut Hill, MA 024671255470159
- Howard Goldsweig, M.D.Chestnut Hill, MA 024671073946018
Common questions
What is John L. Yang, M.D.'s NPI number?
John L. Yang, M.D.'s National Provider Identifier (NPI) is 1013949551, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John L. Yang, M.D. located?
The NPPES record lists a practice address at 2014 Washington St, Newton, MA, 02462. Phone: (617) 219-1230. Providers update this record themselves, so call before visiting.
How can I verify John L. Yang, M.D.'s license?
NPPES lists Massachusetts license number 219306, 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 John L. Yang, M.D. prescribe under Medicare Part D?
In 2024, John L. Yang, M.D. had 415 Medicare Part D claims for 92 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.