George G. Demopoulos, DO

Medicare activity in 2024

Official CMS public-use data for George G. Demopoulos, 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. Critical care, first 30-74 minutes (99291)206 services
2. Critical care, each additional 30 minutes (99292)39 services
3. Ultrasonic guidance for blood vessel access (76937)23 services
4. Emergent insertion of breathing tube into windpipe using an endoscope (31500)22 services
5. Insertion of artery tube for blood sampling or infusion through skin (36620)20 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%
• Ischemic heart disease54%
• Heart failure52%
• Diabetes49%
• Chronic kidney disease48%

Hospitals where George G. Demopoulos works

Medicare's Facility Affiliation Data lists George G. Demopoulos 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.

• Ascension St John Broken ArrowBroken Arrow, OK · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 370235
• Ascension St John Medical CenterTulsa, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370114

Practice locations

Addresses where George G. Demopoulos is enrolled with Medicare (CMS data updated October 2, 2026).

• 1923 S Utica AveTulsa, OK 74104 (918) 744‑3131
• 300 Rockefeller DrMuskogee, OK 74401 (918) 684‑2101
• 6161 S Yale AveTulsa, OK 74136

Group practices

Medicare enrollment lists George G. Demopoulos as a member of this group (CMS data updated October 2, 2026).

• Usacs Observation Medicine Services of Oklahoma, LLC210 clinicians in the group

Specialties

• Internal Medicineprimary
• Hospitalistalso

Find other Internal Medicine doctors in Oklahoma →

Other internal medicine doctors in Tulsa

Clinicians with the same Medicare primary specialty in Tulsa, OK — not a recommendation.

• Jon P. Cox, MD
• James D. Smith, DO
• Luma Al Dabbagh, MD
• John T. Whitaker, DO
• Christopher Vontungeln, DO
• William M. James, MD
• John M. Cook, MD
• Dana D. Morrel, MD

All internal medicine doctors in Tulsa →

Other clinicians in Usacs Observation Medicine Services of Oklahoma, LLC

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

• Michaela D. McKeehan, NP
• Kacey McConnell, DO
• Whitney Hounshell, DO
• David McVay, DO
• Ahmad M. Gaben, MD
• Julio O. Novelo, 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