Anna F. Tyson

Medicare activity in 2024

Official CMS public-use data for Anna F. Tyson, 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 straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)161 services
2. Critical care, first 30-74 minutes (99291)129 services
3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)66 services
4. Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)44 services
5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)40 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%
• Arthritis60%
• Ischemic heart disease41%
• Chronic kidney disease38%
• Anxiety36%

Hospitals where Anna F. Tyson works

Medicare's Facility Affiliation Data lists Anna F. Tyson 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 Anna F. Tyson is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

• 1300 Oak AveEvanston, IL 60201 (847) 869‑1300
• 2100 Pfingsten RdGlenview, IL 60026
• 2650 Ridge AveEvanston, IL 60201
• 767 Park Ave W, Suite 110Highland Park, IL 60035 (847) 926‑6810
• 777 Park Ave WHighland Park, IL 60035

Group practices

Medicare enrollment lists Anna F. Tyson as a member of this group (CMS data updated October 2, 2026).

• Endeavor Health Medical Group3,350 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in Illinois →

Other general surgeons in Evanston

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

• Julia R. Amundson, MD
• Anne E. Souza, MD
• Daniel E. Vera, MD
• Malcolm M. Bilimoria, MD
• Brendan J. Ringhouse, MD
• Michael B. Ujiki, MD
• Peter J. Hwang, DO
• Robert Rao, MD

All general surgeons in Evanston →

Other clinicians in Endeavor Health Medical Group

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

• Erica J. Marske
• Ioannis Economou, MD
• Caren T. Corrigan
• Amanda M. Schwellenbach
• Karolina E. Wozny
• Julia R. Amundson, 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