Rosemary L. King Chen, MD

Medicare activity in 2024

Official CMS public-use data for Rosemary L. King Chen, 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. Anesthesia for other procedure on large bowel using an endoscope (00811)272 services
2. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)178 services
3. Anesthesia for procedure on small and large bowel using an endoscope (00813)83 services
4. Anesthesia for exam of colon using an endoscope (00812)45 services
5. Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope (00732)31 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 pressure73%
• Arthritis52%
• Ischemic heart disease31%
• Diabetes26%
• Anxiety20%

Hospitals where Rosemary L. King Chen works

Medicare's Facility Affiliation Data lists Rosemary L. King Chen 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.

• Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140252

Practice locations

Addresses where Rosemary L. King Chen is enrolled with Medicare (CMS data updated October 2, 2026).

• 800 W Central RdArlington Heights, IL 60005 (847) 618‑1000

Group practices

Medicare enrollment lists Rosemary L. King Chen as a member of this group (CMS data updated October 2, 2026).

• Endeavor Health Medical Group3,350 clinicians in the group

Specialties

• Anesthesiologyprimary
• Interventional Pain Managementalso
• Pain Managementalso

Find other Anesthesiology doctors in Illinois →

Other anesthesiologists in Arlington Heights

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

• Meghan L. Brennan, MD
• Aaron T. Artiles, MD
• Chia-Yang J. Lu, MD
• Paul Marsiglia, DO
• Loryn K. Kromrey, MD
• Bohdan L. Charkewycz, MD
• Song Yun, MD
• Demetrios Louis, MD

All anesthesiologists in Arlington Heights →

Other clinicians in Endeavor Health Medical Group

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

• Sivani Aluru, MD
• Emily K. Andrew, MD
• Narayan M. Saha, MD
• Saher Imtiaz, CSW
• Madhukar Damera, MD
• John G. Girardot, 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