GCGA PHYSICIANS INC.
NPI 1790851095
Internal Medicine - Gastroenterology in Cincinnati, OH

Q: What is Gcga Physicians Inc.'s NPI number?

The NPI number for Gcga Physicians Inc. is 1790851095. It was assigned to this organization in the NPPES registry on November 28, 2006. The provider is doing business as Ohio GI & Liver Institute.

Q: What is Gcga Physicians Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since November 28, 2006

2925 VERNON PL, SUITE 100, CINCINNATI, OH 45219(513) 751-6667(513) 872-7625 Get Directions Write a Review

NPPES record last updated: May 15, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 15, 2025, Feb 13, 2025 (2 updates tracked since 2025).

On this page

About Gcga Physicians Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GCGA PHYSICIANS INC. (NPI 1790851095), doing business as Ohio Gi & Liver Institute, is a healthcare organization registered as a gastroenterology in Cincinnati, Ohio and active in the NPI registry since November 2006. The organization lists Alan Oliver, Ceo, as its authorized official.

NPPES Registry Identity

NPI1790851095

Entity TypeOrganization

Primary Taxonomy207RG0100X

Legal Business NameGCGA PHYSICIANS INC.

Location Address2925 VERNON PL, SUITE 100Cincinnati, OH 45219-2425

Mailing Address2925 Vernon Pl, Suite 100Cincinnati, OH 45219-2425 · (513) 751-6667 · Fax (513) 872-7625

Phone(513) 751-6667

Fax(513) 872-7625

Organization SubpartNo

Authorized OfficialAlan OliverCeo · (786) 530-3820

Enumeration DateNovember 28, 2006

Last NPPES UpdateMay 15, 20252 updates tracked since enumeration

NPPES CertifiedMay 15, 2025

✔ NPI 1790851095 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

2925 VERNON PL, Cincinnati, OH 45219

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Other Names 1

Doing Business AsOhio Gi & Liver Institute

Other Identifiers 1

Medicaid2036273OH

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gcga Physicians Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 96 clinicians reassign Medicare billing to Gcga Physicians Inc., which bills Medicare for the services they deliver. Of these, 22 practice at this address and 36 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 7

Gastroenterology51

Nurse Practitioner25

Diagnostic Radiology8

Pathology6

Internal Medicine3

Interventional Radiology2

Colorectal Surgery (Proctology)1

Nearest to this location (20)

See all 96

Matthew Atkinson, M.D.

Gastroenterology

NPI 1255493185

2925 VERNON PL
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Emily Bittner, APRN

Nurse Practitioner

NPI 1942934013

2925 VERNON PL STE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Manish Chokshi, M.D.

Gastroenterology

NPI 1780673608

2925 VERNON PL SUITE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Andrew Chun, MD

Gastroenterology

NPI 1255370300

2925 VERNON PL STE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Kevin Cronley, M.D.

Gastroenterology

NPI 1295979102

2925 VERNON PL STE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

John Czarnecki, M.D.

Gastroenterology

NPI 1932198645

2925 VERNON PL SUITE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Jorge Go, M.D.

Gastroenterology

NPI 1538366729

2925 VERNON PL STE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Kai Ha, M.D.

Gastroenterology

NPI 1902345903

2925 VERNON PL STE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Terry Kaylor, MD

Gastroenterology

NPI 1497849988

2925 VERNON PL SUITE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Michael Kreines, M.D.

Gastroenterology

NPI 1194714907

2925 VERNON PL SUITE100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOSSame address

Lisa Lestina, M.D.

Gastroenterology

NPI 1548259468

2925 VERNON PL SUITE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Michael Markow, M.D.

Pathology

NPI 1194091892

2925 VERNON PL SUITE 100
Cincinnati, OH 45219

(513) 569-1310

✔ PECOS✔ Accepts MedicareSame address

Stephen Martin, M.D.

Gastroenterology

NPI 1538158241

2925 VERNON PL SUITE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Carmen Meier, M.D.

Gastroenterology

NPI 1306046107

2925 VERNON PL
Cincinnati, OH 45219

(513) 794-5600

✔ PECOS✔ Accepts MedicareSame address

Terrance O'toole, D.O

Gastroenterology

NPI 1134281843

2925 VERNON PL STE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Ravi Ravinuthala, M.D.

Gastroenterology

NPI 1669461588

2925 VERNON PL SUITE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Christopher South, MD

Gastroenterology

NPI 1649392341

2925 VERNON PL SUITE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Jeffrey Stotz, M.D.

Internal Medicine

NPI 1740279561

2925 VERNON PL SUITE 100
Cincinnati, OH 45219

(513) 715-6667

✔ PECOS✔ Accepts MedicareSame address

Amit Gajera, M.D.

Gastroenterology

NPI 1184845489

2925 VERNON PL STE 100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOS✔ Accepts MedicareSame address

Lynne Goocey, APRN

Nurse Practitioner

NPI 1790959161

2925 VERNON PL #100
Cincinnati, OH 45219

(513) 751-6667

✔ PECOSSame address

See all 96 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gcga Physicians Inc.'s NPI number?

The NPI number for Gcga Physicians Inc. is 1790851095. It was assigned to this organization in the NPPES registry on November 28, 2006. The provider is doing business as Ohio GI & Liver Institute.

Where is Gcga Physicians Inc. located?

Gcga Physicians Inc. is located at 2925 Vernon Pl Suite 100, Cincinnati, OH 45219. The listed phone number is (513) 751-6667.

What is Gcga Physicians Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Gcga Physicians Inc. enrolled in Medicare?

Yes. Gcga Physicians Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gcga Physicians Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 96 clinicians in 7 Medicare specialties reassign their Medicare billing to Gcga Physicians Inc.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Gastroenterology (51), Nurse Practitioner (25) and Diagnostic Radiology (8). Of these, 22 practice at this address and 36 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Gcga Physicians Inc. accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 1 other insurer list Gcga Physicians Inc. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gcga Physicians Inc. was last updated on May 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.