NPPES file of Aug 9, 2026

Chi-Fu Jeffrey Yang, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Boston, MA

Chi-Fu Jeffrey Yang, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Boston, Massachusetts, and NPI 1104117449, issued on Apr 20, 2011. Check the license (Massachusetts 285024, 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
1104117449
Name
Chi-Fu Jeffrey Yang
Credential
M.D.
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License numbers
285024 MA
20670 NH
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit St, Boston, MA 02114
Phone
(617) 726-6826
Enumerated
Apr 20, 2011
Record last updated
Aug 29, 2025
Medicare enrollment
Enrolled (PECOS I20201210002636); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 2011
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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8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 228 in Massachusetts → Look up another NPI →

Also registered at 55 Fruit St

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

  1. Affan Aamir, MD, PHARMD, RPHStudent in an Organized Health Care Education/Training Program1821890377
  2. Matthew AbadirAnesthesiology Physician1699120550
  3. Taimur AbbasiInternal Medicine Physician1841673522
  4. Megan Abbott, MDAnesthesiology Physician1730839333
  5. Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
  6. Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590

Verify Chi-Fu Jeffrey Yang 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 285024    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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49% fewer Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024

52 Medicare Part D claims for 20 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Chi-Fu Yang52
  2. Specialty average101

Most prescribed

  1. Gabapentin15 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: $3,695.05

5 payments; by number, the most common kind was consulting fee; the largest payer was Genentech USA, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Chi-Fu Yang$3,695.05
  2. Specialty average$7,828.84

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

Bills Medicare through 4 group practices

  1. Foundation Medical Partners IncMilford, NH
  2. Massachusetts General Physicians Organization IncBoston, MA
  3. The General Hospital CorporationBoston, MA
  4. Wentworth Douglass Physician CorporationDover, NH

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

Chi-Fu Jeffrey Yang among 228 thoracic surgery (cardiothoracic vascular surgery) physician records in Massachusetts

Chi-Fu Jeffrey Yang, M.D. is one of 228 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Massachusetts. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 68% of them.

  • NPI issued2011 · 68% of these records are older, 25% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2011 · median 1998 among the 131 with a school on file
  • Record last updated2025 · 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 208G00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Massachusetts

There are 228 thoracic surgery (cardiothoracic vascular surgery) physician records in Massachusetts.

All 228 in Massachusetts → Every provider in Boston → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →

The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes

  1. Cary Akins, MDBoston, MA 021141447231899
  2. James Allan, MDBoston, MA 021141699765859
  3. Henning Gaissert, MDBoston, MA 021141437149028
  4. Michael Lanuti, MDBoston, MA 021141992796817
  5. Joren Madsen, MD DPHLBoston, MA 021141760465652
  6. Douglas Mathisen, MDBoston, MA 021141699759019
  7. Christopher Morse, MDBoston, MA 021141235113556
  8. Ashok Muniappan, MDBoston, MA 021141871575159

Common questions

What is Chi-Fu Jeffrey Yang, M.D.'s NPI number?

Chi-Fu Jeffrey Yang, M.D.'s National Provider Identifier (NPI) is 1104117449, issued on Apr 20, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Chi-Fu Jeffrey Yang, M.D. located?

The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-6826. Providers update this record themselves, so call before visiting.

How can I verify Chi-Fu Jeffrey Yang, M.D.'s license?

NPPES lists Massachusetts license number 285024, 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 Chi-Fu Jeffrey Yang, M.D. prescribe under Medicare Part D?

In 2024, Chi-Fu Jeffrey Yang, M.D. had 52 Medicare Part D claims for 20 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.