Kathy R. Sonenthal, MD

Medicare activity in 2024

Official CMS public-use data for Kathy R. Sonenthal, 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. Test for allergy using allergenic extract (95004)494 services
2. Professional service for preparation and provision of 1 or more antigens (95165)303 services
3. Professional service for multiple injections of allergen (95117)227 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)170 services
5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)25 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 pressure73%
• High cholesterol68%
• Asthma56%
• Arthritis43%
• Diabetes28%
• Osteoporosis20%

Hospitals where Kathy R. Sonenthal works

Medicare's Facility Affiliation Data lists Kathy R. Sonenthal 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.

• John H Stroger Jr HospitalChicago, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140124
• 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 Kathy R. Sonenthal is enrolled with Medicare (CMS data updated October 2, 2026).

• 150 W Half Day Rd, Suite 200Buffalo Grove, IL 60089 (847) 793‑0777
• 500 E 51st StChicago, IL 60615 (312) 572‑2000
• 500 Skokie Blvd, Suite 140Northbrook, IL 60062 (847) 272‑4296

Group practices

Medicare enrollment lists Kathy R. Sonenthal as a member of these groups (CMS data updated October 2, 2026).

• Cook County788 clinicians in the group
• Salmon S Goldberg MD and David S Chudwin MDSC4 clinicians in the group

Specialties

• Allergy/Immunologyprimary

Find other Allergy/Immunology doctors in Illinois →

Other allergist and immunologists in Buffalo Grove

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

• Maria C. Yango-Eugenio, MD
• Sarah C. Peterson, MD
• Newton T. Li, MD

All allergist and immunologists in Buffalo Grove →

Other clinicians in Cook County

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

• Sarah E. Assian
• Seema R. Gandhi, MD
• Amy S. Guralnick, MD
• Regeena Francis, NP
• Shreeyala Uday, MD
• Rafael Turbay, 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