Marc J. Oropilla, DO

Medicare activity in 2024

Official CMS public-use data for Marc J. Oropilla, 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 50 minutes (99233)269 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)208 services
3. Hospital discharge day management, more than 30 minutes (99239)101 services
4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)72 services
5. Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)19 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%
• Arthritis61%
• Chronic kidney disease54%
• Ischemic heart disease48%
• Heart failure48%

Hospitals where Marc J. Oropilla works

Medicare's Facility Affiliation Data lists Marc J. Oropilla 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.

• University Health System, IncKnoxville, TN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 440015

Practice locations

Addresses where Marc J. Oropilla is enrolled with Medicare (CMS data updated October 2, 2026).

• 1924 Alcoa HwyKnoxville, TN 37920

Group practices

Medicare enrollment lists Marc J. Oropilla as a member of this group (CMS data updated October 2, 2026).

• University Health System, Inc.522 clinicians in the group

Specialties

• Hospitalistprimary

Find other Hospitalist doctors in Tennessee →

Other hospitalists in Knoxville

Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.

• Erin Hamric, DO
• Brian J. Wheeler, MD
• Melanie S. McCown, DO
• Bethany W. Blackburn, MD
• Ashley N. Gutierrez Santana, MD
• Christopher M. Snell, DO
• Samuel R. Mowery
• Benjamin C. Verzi

All hospitalists in Knoxville →

Other clinicians in University Health System, Inc.

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

• Erin Hamric, DO
• Tyler Coombes, MD
• Ala'A Mitoubsi
• Oscar H. Grandas, MD
• Jano J. Janoyan, DO
• Adam A. Debusk, DO

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