Medicare Enrolled
Dr. Michael Tzagournis, MD
Gastroenterology · Columbus, OH
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Tzagournis from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Tzagournis
Dr. Michael Tzagournis is a gastroenterology specialist in Columbus, OH, with 20 years of NPI registration. Based on federal Medicare data, Dr. Tzagournis performed 783 Medicare services across 742 unique beneficiaries.
Between the years covered by Open Payments, Dr. Tzagournis received a total of $16,221 from 43 pharmaceutical and/or device companies across 1042 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in gastroenterology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Tzagournis is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years in practice
▲ Top 23% volume in OH
$16,221 industry payments
Medicare Practice Summary
Medicare Utilization ↗783
Medicare services
Top 23% in OH for gastroenterology
742
Unique beneficiaries
$62
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~39 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Additional sedation, per 15 minutes Administration of a drug to deepen sedation during a procedure. This code covers each additional 15-minute increment of sedation beyond the initial period. |
149 | $8 | $25 |
| Moderate sedation during GI endoscopy Sedation services provided by the physician performing a gastrointestinal endoscopic procedure. This requires an independent trained observer to assist in monitoring the patient. |
142 | $4 | $100 |
| Colon polyp removal with endoscopic snare This procedure removes polyps or growths from the large bowel using a flexible tube with a camera and a wire loop tool. The snare is used to cut off the growths during the examination. |
82 | $183 | $1,000 |
| Colonoscopy with biopsy A procedure to collect tissue samples from the large intestine using a flexible tube with a camera. The samples are examined to check for abnormalities or disease. |
79 | $51 | $900 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
77 | $122 | $275 |
| Upper GI endoscopy with biopsy A procedure to collect tissue samples from the esophagus, stomach, or upper small intestine using a flexible tube with a camera. The samples are examined to check for abnormalities. |
73 | $76 | $975 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
54 | $86 | $150 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
28 | $55 | $150 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
27 | $91 | $180 |
| Upper endoscopy (EGD) A diagnostic exam of the esophagus, stomach, and upper small bowel using a flexible endoscope. |
22 | $77 | $650 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
16 | $57 | $120 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
12 | $67 | $175 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
11 | $8 | $75 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
11 | $97 | $260 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2024 ↗$16,221
Total received (2018-2024)
Avg $2,317/year across 7 years
Top 13% in OH for gastroenterology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
43
Companies
1,042
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$16,154 (99.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$67 (0.4%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,894
2023
$2,521
2022
$2,576
2021
$2,344
2020
$1,643
2019
$2,478
2018
$1,765
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$838
GENZYME CORPORATION
$422
Takeda Pharmaceuticals U.S.A., Inc.
$370
PFIZER INC.
$212
Janssen Biotech, Inc.
$202
Madrigal Pharmaceuticals
$153
QOL Medical, LLC
$116
Celgene Corporation
$112
Regeneron Healthcare Solutions, Inc.
$73
Merck Sharp & Dohme LLC
$68
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$67
Celltrion USA Inc.
$53
AIMMUNE THERAPEUTICS, INC.
$50
Lilly USA, LLC
$38
Ardelyx, Inc.
$36
Boston Scientific Corporation
$22
Gilead Sciences, Inc.
$18
Braintree Laboratories, Inc.
$15
Ipsen Biopharmaceuticals, Inc
$15
Intercept Pharmaceuticals, Inc.
$15
Top 3 companies account for 56.3% of 2024 payments
All-time payments by company (2018-2024) ›
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$3,429
Janssen Biotech, Inc.
$2,078
Takeda Pharmaceuticals U.S.A., Inc.
$1,887
AbbVie Inc.
$1,571
ABBVIE INC.
$1,561
AbbVie, Inc.
$886
GENZYME CORPORATION
$667
Celgene Corporation
$582
PFIZER INC.
$469
Allergan Inc.
$352
QOL Medical, LLC
$328
Regeneron Healthcare Solutions, Inc.
$277
Boston Scientific Corporation
$217
Gilead Sciences, Inc.
$161
Ardelyx, Inc.
$153
Madrigal Pharmaceuticals
$153
Merck Sharp & Dohme Corporation
$138
Nestle HealthCare Nutrition Inc.
$129
Janssen Scientific Affairs, LLC
$120
Merck Sharp & Dohme LLC
$115
Ironwood Pharmaceuticals, Inc
$101
Medtronic USA, Inc.
$99
Prometheus Laboratories Inc.
$78
VIVUS, Inc.
$76
Celltrion USA Inc.
$67
Lilly USA, LLC
$59
UCB, Inc.
$56
Synergy Pharmaceuticals Inc
$51
AIMMUNE THERAPEUTICS, INC.
$50
IRONWOOD PHARMACEUTICALS, INC
$45
Micro-tech Endoscopy USA, Inc.
$45
RedHill Biopharma Inc.
$35
Intercept Pharmaceuticals, Inc.
$29
EVOKE PHARMA, INC.
$27
Evoke Pharma, Inc.
$23
Ferring Pharmaceuticals Inc.
$16
Alfasigma USA, Inc.
$16
Braintree Laboratories, Inc.
$15
Ipsen Biopharmaceuticals, Inc
$15
NESTLE HEALTHCARE NUTRITION INC.
$14
Allergan, Inc.
$14
Concordia Pharmaceuticals Inc.
$13
Romark Laboratories, LC
$5
Top 3 companies account for 45.6% of all-time payments
Associated products mentioned in payments ›
APRISO · Alinia · Amitiza · Biopsy Forcep · CIMZIA · CREON · Cimzia · Creon · DAT Closure Device · DIFICID · DUPIXENT · Donnatal · ENTYVIO · EXALT Model D · Entyvio · GATTEX · GENERAL - THERAPIES · GIMOTI · HUMIRA · Humira · IBSRELA · ICONSYNC · IQIRVO · LINZESS · Large Capacity Forcep · Linzess · Lockado · MAVYRET · MOTEGRITY · Mavyret · Motegrity · OCALIVA · OMVOH · PANCREAZE · RELISTOR · REMICADE · RESMETIROM · REZDIFFRA · RINVOQ · SKYRIZI · STELARA · SUCRAID · SUTAB · Sucraid · TREMFYA · TRULANCE · Talicia · Trulance · UCERIS TABLETS · VIBERZI · VOWST · XELJANZ · XIFAXAN · XIFAXANIBSD · XIFIXAN · YUFLYMA · ZENPEP · ZEPATIER · ZEPOSIA · ZYMFENTRA
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Gastroenterologists within 10 mi
107
Per 100K population
8.1
County median income
$73,795
Nearest hospital
GRANT MEDICAL CENTER
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Tzagournis is a mixed practice specialist, with above-average Medicare volume (top 23% in OH), with low-engagement industry engagement in the top 13% of OH peers, with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Tzagournis experienced with additional sedation, per 15 minutes?
Based on Medicare claims data, Dr. Tzagournis performed 149 additional sedation, per 15 minutes services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Tzagournis receive payments from pharmaceutical companies?
Yes. Dr. Tzagournis received a total of $16,221 from 43 companies across 1,042 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Tzagournis's costs compare to other gastroenterologists in Columbus?
Dr. Tzagournis's average Medicare payment per service is $62. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Tzagournis) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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