NPPES file of Aug 9, 2026

Moon O. Kwoun, M.D.

Vascular Surgery Physician · Cambridge, MA

Moon O. Kwoun, M.D. is a vascular surgery physician with a practice address in Cambridge, Massachusetts, and NPI 1205883956, issued on May 28, 2006. Check the license (Massachusetts 156583, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1205883956
Name
Moon O. Kwoun
Credential
M.D.
Primary taxonomy
Vascular Surgery Physician 2086S0129X
License number
156583 MA
Self-reported in NPPES; status is on the state search
Practice location
1493 Cambridge St, Cambridge, MA 02139
Phone
(617) 665-2555
Enumerated
May 28, 2006
Record last updated
Aug 18, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20051208000249); accepts Medicare assignment
Medical or professional school
Albert Einstein College Of Medicine Of Yeshiva University, 1992
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.
Download card Updates feed

Also registered at 1493 Cambridge St

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

  1. Omar Abbas, MDStudent in an Organized Health Care Education/Training Program1225728025
  2. Nawyaab Abbasi, DOStudent in an Organized Health Care Education/Training Program1215875364
  3. Flannery AbbeySocial Worker1508604273
  4. Rana AbdallahSocial Worker1689220204
  5. Khaleel Abdul-Jabbaar, PT, DPTOrthopedic Physical Therapist1780295717
  6. Adri Abou-Bakr, MDStudent in an Organized Health Care Education/Training Program1770421844

Verify Moon O. Kwoun 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 156583
    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.

48% fewer Medicare Part D claims than the average vascular surgery physician in 2024

105 Medicare Part D claims for 27 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. 29 claims were for opioids.

  1. Moon Kwoun105
  2. Specialty average201

Most prescribed

  1. Sulfamethoxazole-Trimethoprim15 claims
  2. Clopidogrel13 claims
  3. Oxycodone Hcl13 claims
  4. Cilostazol12 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 86.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.8
  2. Costout of 100 · 30%58.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $244.97

2 payments; by number, the most common kind was food and beverage; the largest payer was Silk Road Medical, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Moon Kwoun$244.97
  2. Specialty average$6,178.00

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. Cambridge Public Health CommissionCambridge, MA

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

Moon O. Kwoun among 161 vascular surgery physician records in Massachusetts

Moon O. Kwoun, M.D. is one of 161 vascular surgery 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 19% of them.

  • NPI issued2006 · 19% of these records are older, 46% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1992 · median 2003 among the 108 with a school on file
  • Record last updated2021 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular Surgery Physician providers in Massachusetts

There are 161 vascular surgery physician records in Massachusetts.

The 8 vascular surgery physician records with the nearest ZIP codes

  1. Chantel Hile, MDCambridge, MA 021381164561650
  2. Frank Pomposelli, M.D.Boston, MA 021351356306336
  3. Syed Razvi, M.D.Brighton, MA 021351780791137
  4. Sarah Carlson, MD, MSCWest Roxbury, MA 021321093952939
  5. Alex Lin, MDWest Roxbury, MA 021321376031534
  6. Michelle Martin, M.D.West Roxbury, MA 021321881878148
  7. James McPhee, M.D.West Roxbury, MA 021321962460360
  8. Joseph Raffetto, MDWest Roxbury, MA 021321790896827

Common questions

What is Moon O. Kwoun, M.D.'s NPI number?

Moon O. Kwoun, M.D.'s National Provider Identifier (NPI) is 1205883956, issued on May 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Moon O. Kwoun, M.D. located?

The NPPES record lists a practice address at 1493 Cambridge St, Cambridge, MA, 02139. Phone: (617) 665-2555. Providers update this record themselves, so call before visiting.

How can I verify Moon O. Kwoun, M.D.'s license?

NPPES lists Massachusetts license number 156583, 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 Moon O. Kwoun, M.D. prescribe under Medicare Part D?

In 2024, Moon O. Kwoun, M.D. had 105 Medicare Part D claims for 27 beneficiaries; the average among vascular surgery physician prescribers was 201. Part D covers Medicare prescriptions only.

What is Moon O. Kwoun, M.D.'s MIPS final score?

The 2023 MIPS final score is 86.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.