Katherine W. Sun, MD

Medicare activity in 2024

Official CMS public-use data for Katherine W. Sun, 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. Insertion of artery tube for blood sampling or infusion through skin (36620)23 services
2. Anesthesia for x-ray or radiation therapy (01922)19 services
3. Anesthesia for procedure to correct abnormal heart rhythm (00410)17 services
4. Anesthesia for procedure to assess heart electrical activity (00537)13 services
5. Ultrasound of heart with probe in esophagus, with report (93312)13 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 cholesterol75%
• Atrial fibrillation68%
• Ischemic heart disease57%
• Arthritis50%
• Heart failure50%

Hospitals where Katherine W. Sun works

Medicare's Facility Affiliation Data lists Katherine W. Sun 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.

• Duke University HospitalDurham, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340030

Practice locations

Addresses where Katherine W. Sun is enrolled with Medicare (CMS data updated October 2, 2026).

• 2301 Erwin RdDurham, NC 27705 (919) 684‑8111

Group practices

Medicare enrollment lists Katherine W. Sun as a member of this group (CMS data updated October 2, 2026).

• Duke Health Integrated Practice, Inc3,185 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in North Carolina →

Other anesthesiologists in Durham

Clinicians with the same Medicare primary specialty in Durham, NC — not a recommendation.

• Elizabeth A. Wilson, MD
• William J. Dunkman, MD
• Mara A. Serbanescu, MD
• James T. Herbert
• Kathleen Claus, MD
• John B. Eck, MD
• John E. McManigle Jr., MD
• Padma Gulur, MD

All anesthesiologists in Durham →

Other clinicians in Duke Health Integrated Practice, Inc

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

• Rebekah M. Hardin, CNA
• Sophie M. Eriksen, PA
• Anna Mae E. Diehl, MD
• Nicholas Said, MD
• Jeslyn M. Kleinschmit, CNA
• James Brennan, MD

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