NPPES file of Aug 9, 2026

Ik-Kyung Jang, MD PHD

Interventional Cardiology Physician · Boston, MA

Ik-Kyung Jang, MD PHD is an interventional cardiology physician with a practice address in Boston, Massachusetts, and NPI 1811988454, issued on Nov 2, 2005. Check the license (Massachusetts 74943, 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
1811988454
Name
Ik-Kyung Jang
Credential
MD PHD
Primary taxonomy
Interventional Cardiology Physician 207RI0011X
License number
74943 MA
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit St, Boston, MA 02114
Phone
(617) 726-9226
Enumerated
Nov 2, 2005
Record last updated
Jul 13, 2026
Fax
(617) 726-7419
Medicaid ID
3101738 MA
Medicare enrollment
Enrolled (PECOS I20050518001237); 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 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 Ik-Kyung Jang 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 74943
    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

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81% fewer Medicare Part D claims than the average interventional cardiology physician in 2024

601 Medicare Part D claims for 176 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Ik-Kyung Jang601
  2. Specialty average3,179

Most prescribed

  1. Ezetimibe86 claims
  2. Atorvastatin Calcium78 claims
  3. Metoprolol Succinate71 claims
  4. Amlodipine Besylate50 claims
  5. Lisinopril45 claims
  6. Losartan Potassium41 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 one group practice

  1. Massachusetts General Physicians Organization IncBoston, MA

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

Ik-Kyung Jang among 141 interventional cardiology physician records in Massachusetts

Ik-Kyung Jang, MD PHD is one of 141 interventional cardiology physician records with a practice address in Massachusetts. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 83% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 80% of these records are
  • Graduated1980 · median 2000 among the 112 with a school on file
  • Record last updated2026 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Interventional Cardiology Physician providers in Massachusetts

There are 141 interventional cardiology physician records in Massachusetts.

The 8 interventional cardiology physician records with the nearest ZIP codes

  1. Suzanne Baron, MD MSCBoston, MA 021141619003324
  2. Anthony Buckley, MB BCH BAOBoston, MA 021141013503408
  3. Darshan Doshi, M.D.Boston, MA 021141710120829
  4. Douglas Drachman, MDBoston, MA 021141245211176
  5. Rory Gallen, MDBoston, MA 021141396385688
  6. Joseph Garasic, MDBoston, MA 021141154303808
  7. Farouc Jaffer, MD PHDBoston, MA 021141083605547
  8. Abdur Khan, M.D.Boston, MA 021141700132750

Common questions

What is Ik-Kyung Jang, MD PHD's NPI number?

Ik-Kyung Jang, MD PHD's National Provider Identifier (NPI) is 1811988454, issued on Nov 2, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ik-Kyung Jang, MD PHD located?

The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-9226. Providers update this record themselves, so call before visiting.

How can I verify Ik-Kyung Jang, MD PHD's license?

NPPES lists Massachusetts license number 74943, 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 Ik-Kyung Jang, MD PHD prescribe under Medicare Part D?

In 2024, Ik-Kyung Jang, MD PHD had 601 Medicare Part D claims for 176 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. 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.