Peter M. Oshin, MD

Medicare activity in 2024

Official CMS public-use data for Peter M. Oshin, 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 moderate levelof medical decision making, if using time, at least 35 minutes (99232)61 services
2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)40 services
3. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)30 services
4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)24 services
5. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)21 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%
• Diabetes64%
• Chronic kidney disease55%
• Arthritis50%
• Heart failure47%

Hospitals where Peter M. Oshin works

Medicare's Facility Affiliation Data lists Peter M. Oshin 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.

• Vista Medical Center EastWaukegan, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140084

Practice locations

Addresses where Peter M. Oshin is enrolled with Medicare (CMS data updated October 2, 2026).

• 15 Tower Ct, Suite 210Gurnee, IL 60031 (847) 599‑1444
• 15 Tower Ct, Suite 265Gurnee, IL 60031 (847) 360‑9800

Group practices

Medicare enrollment lists Peter M. Oshin as a member of this group (CMS data updated October 2, 2026).

• Waukegan Clinic Corp56 clinicians in the group

Specialties

• Gastroenterologyprimary
• Internal Medicinealso

Find other Gastroenterology doctors in Illinois →

Other gastroenterologists in Gurnee

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

• Walter R. Glaws, DO
• Kevin M. Liebovich, MD
• Robert M. Lee, MD
• Amit D. Kalra, MD
• Jennifer A. Spanier-Stiasny, DO
• Jonathan A. Rosenberg, MD

All gastroenterologists in Gurnee →

Other clinicians in Waukegan Clinic Corp

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

• Galina Simkin, MD
• Yusra Moursy, MD
• Aeron Ignacio
• Deidra A. Hall
• Haili Campanella, NP
• Wallis O. Edwards, 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