Rebecca W. Tsang

Medicare activity in 2024

Official CMS public-use data for Rebecca W. Tsang, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)145 services
2. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)142 services
3. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)138 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)126 services
5. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)119 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 cholesterol75%
• High blood pressure71%
• Arthritis56%
• Ischemic heart disease33%
• Diabetes30%
• Osteoporosis29%

Hospitals where Rebecca W. Tsang works

Medicare's Facility Affiliation Data lists Rebecca W. Tsang 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.

• Northshore University Healthsystem - Evanston HospitalEvanston, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140010

Practice locations

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

• 1732 Central StEvanston, IL 60201 (847) 256‑1855
• 2150 Pfingsten Rd, Suite 3000Glenview, IL 60026 (847) 657‑5900

Group practices

Medicare enrollment lists Rebecca W. Tsang as a member of these groups (CMS data updated October 2, 2026).

• Endeavor Health Medical Group3,350 clinicians in the group
• Endoscopy Center of the North Shore LLC5 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in Illinois →

Other gastroenterologists in Evanston

Clinicians with the same Medicare primary specialty in Evanston, IL — not a recommendation.

• Sarah Burroughs, DO
• Amer Alsamman, MD
• Nabeel Wahid
• David M. Jandura, MD
• Mir A. Zulqarnain, DO
• Monica S. Borkar, MD
• Blake A. Jones, MD
• Joseph Ahn, MD

All gastroenterologists in Evanston →

Other clinicians in Endeavor Health Medical Group

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

• Akta S. Kakodkar, MD
• Bob G. William, MD
• Sarah C. Peterson, MD
• Melyssa K. Van Der Stuyf, NP
• Joshua Wright-Chisem, MD
• James T. Kearns, 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