Theodore P. Bosi, MD

Medicare activity in 2024

Official CMS public-use data for Theodore P. Bosi, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)172 services
2. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)31 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)23 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%
• Anxiety75%
• Depression73%
• High blood pressure71%
• Arthritis57%
• Diabetes37%

Hospitals where Theodore P. Bosi works

Medicare's Facility Affiliation Data lists Theodore P. Bosi 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.

• Northwestern Lake Forest HospitalLake Forest, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140130
• Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140281

Practice locations

Addresses where Theodore P. Bosi is enrolled with Medicare (CMS data updated October 2, 2026).

• 800 N Westmoreland Rd, Suite 201Lake Forest, IL 60045 (312) 926‑6146

Group practices

Medicare enrollment lists Theodore P. Bosi as a member of this group (CMS data updated October 2, 2026).

• Northwestern Medical Faculty Foundation4,503 clinicians in the group

Specialties

• Psychiatryprimary

Find other Psychiatry doctors in Illinois →

Other psychiatrists in Lake Forest

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

• John E. Franklin, MD
• Ryan S. Wang, MD
• Alan Georges, MD
• Deborah A. Reed, MD
• Juliet J. Spelman, MD

All psychiatrists in Lake Forest →

Other clinicians in Northwestern Medical Faculty Foundation

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

• Michelle B. Bruno
• Samdeep K. Mouli, MD
• Tom W. Cherng, PA
• Julia M. Riley, MD
• Tomasz Przezdziak, MD
• Mikayla Kaufenberg

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