NPPES file of Aug 9, 2026

Jiyuan Sun

Hematology & Oncology Physician · Boston, MA

Jiyuan Sun is a hematology & oncology physician with a practice address in Boston, Massachusetts, and NPI 1245658392, issued on Apr 4, 2014. Check the license (Massachusetts 283526, 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
1245658392
Name
Jiyuan Sun
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
283526 MA
Self-reported in NPPES; status is on the state search
Practice location
800 Washington St, Boston, MA 02111
Phone
(617) 636-5000
Enumerated
Apr 4, 2014
Record last updated
May 8, 2023
Medicare enrollment
Enrolled (PECOS I20200824000507); accepts Medicare assignment
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 800 Washington St

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

  1. Jeffrey Aalberg, MD, MPHSurgery Physician1326788027
  2. Omer Abbak, PHARMDPharmacist1114500337
  3. Aya Abdelnaser, MDStudent in an Organized Health Care Education/Training Program1770425373
  4. Marie Elise Abi Antoun, MDObstetrics & Gynecology Physician1356042626
  5. Ahmad AboalfarajSurgery Physician1538517651
  6. Tala Abu Samaan, MDStudent in an Organized Health Care Education/Training Program1376386250

Verify Jiyuan Sun 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 283526
    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.

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64% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

313 Medicare Part D claims for 103 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 23 claims were for opioids.

  1. Jiyuan Sun313
  2. Specialty average877

Most prescribed

  1. Eliquis27 claims
  2. Anastrozole22 claims
  3. Hydroxyurea21 claims
  4. Prednisone17 claims
  5. Bicalutamide15 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.

Industry payments in 2024: $51.62

2 payments; by number, the most common kind was food and beverage; the largest payer was Sirtex Medical Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jiyuan Sun$51.62
  2. Specialty average$7,481.41

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

Bills Medicare through one group practice

  1. Pratt Medical Group IncBoston, MA

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

Jiyuan Sun among 461 hematology & oncology physician records in Massachusetts

Jiyuan Sun 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 2014, is newer than 81% of them.

  • NPI issued2014 · 81% of these records are older, 16% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1999 · 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.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Anubha Bharthuar, MDBoston, MA 021111063739969
  2. Parva Bhatt, M.D.Boston, MA 021111689055832
  3. Sharan Bijlani, MDBoston, MA 021111962061903
  4. Rachel Buchsbaum, MDBoston, MA 021111255360640
  5. Raymond Comenzo, MDBoston, MA 021111750352787
  6. Jacob Elkon, MDBoston, MA 021111104153105
  7. Ruchi Hamal, MDBoston, MA 021111447670823
  8. Andreas Klein, MDBoston, MA 021111285740969

Common questions

What is Jiyuan Sun's NPI number?

Jiyuan Sun's National Provider Identifier (NPI) is 1245658392, issued on Apr 4, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Jiyuan Sun located?

The NPPES record lists a practice address at 800 Washington St, Boston, MA, 02111. Phone: (617) 636-5000. Providers update this record themselves, so call before visiting.

How can I verify Jiyuan Sun's license?

NPPES lists Massachusetts license number 283526, 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 Jiyuan Sun prescribe under Medicare Part D?

In 2024, Jiyuan Sun had 313 Medicare Part D claims for 103 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.