Simona J. Siddall, MD

Medicare activity in 2024

Official CMS public-use data for Simona J. Siddall, 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)42 services
2. Anesthesia for other procedure on large bowel using an endoscope (00811)37 services
3. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)36 services
4. Anesthesia for x-ray on artery of brain, heart, or chest (01926)22 services
5. Anesthesia for procedure on heart and large blood vessels (00560)17 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%
• Arthritis57%
• Ischemic heart disease47%
• Heart failure40%
• Diabetes38%

Hospitals where Simona J. Siddall works

Medicare's Facility Affiliation Data lists Simona J. Siddall 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
• Swedish HospitalChicago, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140114

Practice locations

Addresses where Simona J. Siddall is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 10; the Medicare profile lists all.

• 1300 Oak AveEvanston, IL 60201 (847) 869‑1300
• 2100 Pfingsten RdGlenview, IL 60026
• 2650 Ridge AveEvanston, IL 60201
• 2739 W Foster AveChicago, IL 60625 (773) 878‑8200
• 5140 N California, Suite G600Chicago, IL 60625 (773) 989‑3803

Group practices

Medicare enrollment lists Simona J. Siddall as a member of this group (CMS data updated October 2, 2026).

• Endeavor Health Medical Group3,350 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in Illinois →

Other anesthesiologists in Evanston

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

• Johnny K. Lee, MD
• Cliodhna M. Ashe
• Aaran Varatharajan, MD
• Luke S. Janik, MD
• Aris Kalnins, MD
• Mark A. Deshur, MD
• Adam Cohen, MD
• Colleen K. Coghlan, MD

All anesthesiologists in Evanston →

Other clinicians in Endeavor Health Medical Group

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

• Maria D. Sutkus, DO
• Smita Patel, DO
• Rishi Zaveri, MD
• Susana C. Lapid, MD
• Anne E. Souza, MD
• Sivaraja Kuppuswami, 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