Physician Profile
John P. Tzagournis, M.D.
Unclaimed ProfileAbout Dr. Tzagournis
John P. Tzagournis, M.D. practices gastroenterology in Columbus, OH. John is a 1999 graduate of Ohio State University College of Medicine. According to Medicare claims data, John cared for 548 Medicare patients across 629 services. The services billed most often include 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 monit, subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (614) 458-1183
- Email not available
Practice Locations
700 E BROAD ST 2ND FLOOR
Columbus, OH 43215
111 S Grant Ave
Columbus, OH 43215
Conditions Commonly Evaluated or Treated
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
629 services · 548 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
72 | As often as other peers in Gastroenterology |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
53 | As often as other peers in Gastroenterology |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
53 | As often as other peers in Gastroenterology |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
28 | More often than most peers in Gastroenterology |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
13 | Less often than most peers in Gastroenterology |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
13 | Less often than most peers in Gastroenterology |
| Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes | Treatment | 99153 |
11 | Less often than most peers in Gastroenterology |
| 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 monit | Billing code | G0500 |
135 | More often than most peers in Gastroenterology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
103 | More often than most peers in Gastroenterology |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
52 | More often than most peers in Gastroenterology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other gastroenterologists at this location 4
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other gastroenterologists in Columbus 7
Same specialty, same city.
More connections — 21 related providers in 3 groups
Trained at Ohio State University College of Medicine 5
Other providers in the same specialty who trained at the same institution.
Class of 1999 at Ohio State University College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 8
Providers in OH who bill this service to Medicare most often.
Common questions
What is John P. Tzagournis's specialty?
John P. Tzagournis is a gastroenterologist in Columbus, OH. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where can I find John P. Tzagournis?
John P. Tzagournis is listed at 700 E Broad St 2Nd Floor, Columbus, OH 43215. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact John P. Tzagournis?
The number on file is (614) 458-1183. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is John P. Tzagournis's NPI number?
John P. Tzagournis's National Provider Identifier is 1508818998. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is John P. Tzagournis's education?
John P. Tzagournis attended Ohio State University College of Medicine, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How long has John P. Tzagournis been practicing?
John P. Tzagournis has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What is John P. Tzagournis known for?
According to Medicare billing data, John P. Tzagournis performs procedures including biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare and biopsy of large bowel using a flexible endoscope; provides treatments such as use of a drug to induce depression of consciousness by physician performing a procedure , initial 15 minutes and use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has John P. Tzagournis confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by John P. Tzagournis. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.