Adam C. Tzagournis, MD

Medicare activity in 2024

Official CMS public-use data for Adam C. Tzagournis, 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. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)179 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)96 services
3. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)94 services
4. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)90 services
5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)84 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%
• Arthritis48%
• Diabetes37%
• Ischemic heart disease36%
• Chronic kidney disease31%

Hospitals where Adam C. Tzagournis works

Medicare's Facility Affiliation Data lists Adam C. Tzagournis 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.

• Grant Medical CenterColumbus, OH · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 360017
• Mount Carmel DublinDublin, OH · Acute Care Hospital · Emergency services: listed by Medicare · CCN 360375
• Mount Carmel East & WestColumbus, OH · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 360035
• Riverside Methodist HospitalColumbus, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360006

Practice locations

Addresses where Adam C. Tzagournis is enrolled with Medicare (CMS data updated October 2, 2026).

• 111 S Grant AveColumbus, OH 43215 (614) 566‑9502
• 5300 N Meadows DrGrove City, OH 43123 (614) 663‑3877
• 700 E Broad St, Fl 2Columbus, OH 43215 (614) 458‑1183

Group practices

Medicare enrollment lists Adam C. Tzagournis as a member of these groups (CMS data updated October 2, 2026).

• OhioHealth Corporation2,314 clinicians in the group
• Mount Carmel Healthproviders Two LLC225 clinicians in the group
• Digestive Associates of Ohio5 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in Ohio →

Other gastroenterologists in Columbus

Clinicians with the same Medicare primary specialty in Columbus, OH — not a recommendation.

• Anthony J. Michaels, MD
• Raghuram P. Reddy, MD
• Sheryl A. Pfeil, MD
• Steve Serrao, MD
• Colin Winkie, MD
• David Y. Lo, MD
• Mitchell L. Ramsey, MD
• Sean G. Kelly, MD

All gastroenterologists in Columbus →

Other clinicians in OhioHealth Corporation

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

• Nathan H. Kander, MD
• Harkiran Singh, MD
• Ryan M. Thomas
• Brian D. Dishong, MD
• John D. Leff, MD
• Megan B. Schabbing, 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