Trenton A. Grimm, MD

Medicare activity in 2024

Official CMS public-use data for Trenton A. Grimm, 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)594 services
2. Hospital discharge day management, more than 30 minutes (99239)198 services
3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)88 services
4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)37 services
5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)37 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%
• Arthritis56%
• Ischemic heart disease53%
• Chronic kidney disease52%
• Heart failure52%

Hospitals where Trenton A. Grimm works

Medicare's Facility Affiliation Data lists Trenton A. Grimm 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.

• Good Samaritan Regional Health CenterMount Vernon, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140046
• SSM Health St Mary's Hospital -CentraliaCentralia, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140034

Practice locations

Addresses where Trenton A. Grimm is enrolled with Medicare (CMS data updated October 2, 2026).

• 1 Good Samaritan WayMount Vernon, IL 62864 (557) 203‑1601
• 5 Good Samaritan WayMount Vernon, IL 62864 (557) 203‑1601

Group practices

Medicare enrollment lists Trenton A. Grimm as a member of this group (CMS data updated October 2, 2026).

• Good Samaritan Regional Health Center156 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Mount Vernon

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

• George A. Geranios, MD
• Jiggar R. Hindia, DO
• Cheryl L. Emmons, MD
• Bhargava K. Nelluri, MD
• Peter Pyagay
• Gowda Sharath, MD
• William D. Huffstutler, MD
• Arturo Vega, MD

All internal medicine doctors in Mount Vernon →

Other clinicians in Good Samaritan Regional Health Center

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

• Elizabeth R. Eggemeyer, CNA
• Elzbieta E. Kraszewska-Ostromecka, MD
• Jiggar R. Hindia, DO
• David I. Blue, CNA
• Hayley Martins, DO
• Steven A. Roodman, 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