What is Adam Tzagournis's NPI number?

Adam Tzagournis's National Provider Identifier (NPI) is 1003863440, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Adam Tzagournis's specialty?

Adam Tzagournis is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).

Where is Adam Tzagournis located?

Adam Tzagournis's practice location on file with NPPES is 700 E Broad St, Columbus, OH 43215-3946.

What is Adam Tzagournis's phone number?

The practice phone number listed in the NPPES registry for Adam Tzagournis is (614) 458-1183.

Does Adam Tzagournis accept Medicare?

Adam Tzagournis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Adam Tzagournis's NPI active?

Yes — Adam Tzagournis's NPI (1003863440) is active in the NPPES registry as of the last update on 2025-06-12.

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Adam Tzagournis, MD

NPI 1003863440 · Gastroenterology Physician · Columbus, OH

Adam Tzagournis, MD is a Gastroenterology Physician provider in Columbus, OH (NPI 1003863440).

Provider details

NPI number: 1003863440
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: Yes
License: 35067389 (OH)

Practice location

700 E Broad St

2nd Floor

Columbus, OH 43215-3946

Phone: (614) 458-1183

Fax: (614) 458-1184

Street-level locationGet directions

More OH providers

Mailing address

700 Ackerman Rd

Columbus, OH 43202-1559

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100XLicense 35067389 (OH)
Allopathic & Osteopathic Physicians

Additional practice locations (1)

111 S Grant Ave
Columbus, OH 43215-4701
Phone: (614) 566-9550

Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(86/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
20 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
2 documented practice locations
Medicare service volume (vs. specialty peers)25% of score
782 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
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 MonitoG0500	179	$5
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	96	$86
Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239	94	$97
Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385	90	$233
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	84	$124

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Omeprazole	267	92
Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf	118	117
Pantoprazole Sodium	116	42
Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte	95	90
Mesalamine	50	14
Linaclotidebrand: Linzess	44	21
Ondansetron Hcl	42

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$3,281 across 153 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2006-05-30
Last updated: 2025-06-12
Certified: 2025-06-12

Frequently asked questions

What is Adam Tzagournis's NPI number?: Adam Tzagournis's National Provider Identifier (NPI) is 1003863440, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Adam Tzagournis's specialty?: Adam Tzagournis is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
Where is Adam Tzagournis located?: Adam Tzagournis's practice location on file with NPPES is 700 E Broad St, Columbus, OH 43215-3946.
What is Adam Tzagournis's phone number?: The practice phone number listed in the NPPES registry for Adam Tzagournis is (614) 458-1183.
Does Adam Tzagournis accept Medicare?: Adam Tzagournis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Adam Tzagournis's NPI active?: Yes — Adam Tzagournis's NPI (1003863440) is active in the NPPES registry as of the last update on 2025-06-12.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
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 MonitoG0500	179	$5
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	96	$86
Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239	94	$97
Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385	90	$233
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	84	$124

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Omeprazole	267	92
Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf	118	117
Pantoprazole Sodium	116	42
Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte	95	90
Mesalamine	50	14
Linaclotidebrand: Linzess	44	21
Ondansetron Hcl	42

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$3,281 across 153 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (1)

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments