Moon O. Kwoun, MD

Medicare activity in 2024

Official CMS public-use data for Moon O. Kwoun, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)146 services
2. Ultrasound of both sides of head and neck blood flow (93880)33 services
3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)24 services
4. Ultrasonic guidance for blood vessel access (76937)15 services
5. Ultrasound of one leg arteries or artery grafts (93926)15 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol68%
• Ischemic heart disease45%
• Arthritis44%
• Diabetes43%
• Chronic kidney disease39%

Hospitals where Moon O. Kwoun works

Medicare's Facility Affiliation Data lists Moon O. Kwoun at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Cambridge Health AllianceCambridge, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220011

Practice locations

Addresses where Moon O. Kwoun is enrolled with Medicare (CMS data updated October 2, 2026).

• 1493 Cambridge StCambridge, MA 02139 (617) 665‑1000

Group practices

Medicare enrollment lists Moon O. Kwoun as a member of this group (CMS data updated October 2, 2026).

• Cambridge Public Health Commission656 clinicians in the group

Specialties

• Vascular Surgeryprimary

Find other Vascular Surgery doctors in Massachusetts →

Other vascular surgeons in Massachusetts

Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.

• Marguerite Ballou, MD
• Scott G. Prushik
• Scott D. James, MD
• John T. Frasca, MD
• Nicholas J. Swerdlow, MD
• Julianne Stoughton, MD
• Yiming A. Ching, MD
• Matthew T. Menard, MD

All vascular surgeons in Massachusetts →

Other clinicians in Cambridge Public Health Commission

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Tayla Conroy
• Claire Stauffer
• Lily Chan, MD
• George Dickstein, MD
• Geraldine Malana, DO
• Joshua M. Mularella, DO

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians