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DAYTON GASTROENTEROLOGY LLC
NPI 1134345705
Internal Medicine - Gastroenterology in Dayton, OH

Active since April 18, 2007CLIA Certified · 8 labs
75 SYLVANIA DR, DAYTON, OH 45440(937) 320-5050(937) 320-5060 Get Directions Write a Review

NPPES record last updated: February 3, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 3, 2026, Mar 10, 2025, Apr 10, 2023 and 3 more (6 updates tracked since 2021).

About Dayton Gastroenterology Llc NPPES

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

DAYTON GASTROENTEROLOGY LLC (NPI 1134345705), doing business as Digestive Disease Consultants, is a healthcare organization registered as a gastroenterology in Dayton, Ohio and active in the NPI registry since April 2007. The organization holds 8 active CLIA laboratory certificates, maintains 12 additional practice locations, and lists Kristina Materna, Director, Credentialing, as its authorized official.

NPPES Registry Identity

NPI1134345705
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameDAYTON GASTROENTEROLOGY LLC
Location Address75 SYLVANIA DRDayton, OH 45440-3237
Mailing AddressOne Gi Credentialing Department, Po Box 381468Germantown, TN 38183
Phone(937) 320-5050
Fax(937) 320-5060
Organization SubpartNo
Authorized OfficialKristina MaternaDirector, Credentialing · (901) 377-8219
Enumeration DateApril 18, 2007
Last NPPES UpdateFebruary 3, 20266 updates tracked since enumeration
NPPES CertifiedFebruary 3, 2026
✔ NPI 1134345705 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.
75 SYLVANIA DR, Dayton, OH 45440
Open in Google Maps ↗

Other Names 3

Doing Business AsDigestive Disease Consultants
Doing Business AsGreat Lakes Gastroenterology
Doing Business AsGastroenterology And Hepatology Specialists

Secondary Practice Locations 12

Location 11299 Industrial Pkwy N Ste 110Brunswick, OH 44212-6366 · Phone (330) 225-6468
Location 2415 Byers Rd Ste 100Miamisburg, OH 45342-3684 · Phone (937) 320-5050
Location 39000 N Main St Ste 405Englewood, OH 45415-1170 · Phone (937) 320-5050
Location 44200 Indian Ripple RdBeavercreek, OH 45440-3248 · Phone (937) 320-5050
Location 59614 Old Johnnycake Ridge RdConcord Township, OH 44060-6521 · Phone (440) 205-1225
Location 6500 E Royalton Rd Ste 100Broadview Heights, OH 44147-2592 · Phone (330) 225-6468
Location 73985 Medina Rd Ste 120Medina, OH 44256-5968 · Phone (330) 225-6468
Location 81299 Industrial Pkwy N Ste 290Brunswick, OH 44212-6367 · Phone (330) 225-6468
Location 91299 Industrial Pkwy N Ste 210Brunswick, OH 44212-6366 · Phone (330) 225-6468
Location 101299 Industrial Pkwy N Ste 120Brunswick, OH 44212-6366 · Phone (330) 225-6468
Location 118877 Mentor AveMentor, OH 44060-6211 · Phone (440) 205-1225
Location 124360 Fulton Dr NW Ste BCanton, OH 44718-2878 · Phone (330) 305-2020

Other Identifiers 1

Medicaid3059523OH

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)

Dayton Gastroenterology Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

74

Medicare enrollment records show 74 clinicians reassign Medicare billing to Dayton Gastroenterology LLC, which bills Medicare for the services they deliver. Of these, 21 practice at this address and 32 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 5

Gastroenterology31
Certified Registered Nurse Anesthetist (CRNA)14
Nurse Practitioner14
Pathology13
Certified Clinical Nurse Specialist (CNS)2

Nearest to this location (20)

See all 74
Azaan Akbar, D.O.
Gastroenterology
NPI 1285084806
75 SYLVANIA DR
Beavercreek, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Syed Ali, M.D.
Gastroenterology
NPI 1306808902
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Kalyan Bhoopal, M.D.
Gastroenterology
NPI 1114160926
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Harold Duarte, MD
Gastroenterology
NPI 1508326182
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Lindsey Elliott, APRN
Nurse Practitioner
NPI 1194399766
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Katherine Fowler, CNP
Nurse Practitioner
NPI 1902768575
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Rupa Fritz, M.D.
Gastroenterology
NPI 1366417560
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Jennifer Goodin, APRN
Nurse Practitioner
NPI 1215687199
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Michael Gorsky, M.D.
Gastroenterology
NPI 1043292923
75 SYLVANIA DR
Beavercreek, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Ilyas Ikramuddin, D.O.
Gastroenterology
NPI 1457352940
75 SYLVANIA DR
Beavercreek, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Rizwan Kibria, MD
Gastroenterology
NPI 1730292319
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Michael Loughlin, D.O.
Gastroenterology
NPI 1003043647
75 SYLVANIA DR
Beavercreek, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Diklar Makola, MD, PHD
Gastroenterology
NPI 1225246689
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Ellen Ratay, APRN
Nurse Practitioner
NPI 1114260270
75 SYLVANIA DR
Beavercreek, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Sanjay Sandhir, M.D.
Gastroenterology
NPI 1437124211
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Jonathan Saxe, M.D.
Gastroenterology
NPI 1073588976
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Lisa Stone, M.D.
Gastroenterology
NPI 1235105875
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Ben Thomas, D.O.
Gastroenterology
NPI 1265670095
75 SYLVANIA DR
Beavercreek, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Drew Triplett, D.O.
Gastroenterology
NPI 1255674966
75 SYLVANIA DR
Dayton, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
Niaz Usman, M.D.
Gastroenterology
NPI 1588639777
75 SYLVANIA DR
Beavercreek, OH 45440
(937) 320-5050
✔ PECOS✔ Accepts MedicareSame address
See all 74 clinicians

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

CLIA Laboratory Certificates CMS CLIA 8

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 36D0691675

Dayton Gastroenterology, LLC · Miamisburg, OH
Active · expires Aug 31, 2028
CLIA Number36D0691675
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2026
Certificate Expiration DateAugust 31, 2028
Laboratory DirectorRajeev Mehta
Laboratory Phone(937) 320-5050
Laboratory LocationDayton Gastroenterology, LLC415 Byers Road Suite 100, Miamisburg, OH 45342
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 36D0866492

Dayton Gastroenterology, LLC Dba Gastroenterology And Hepatology Specialists · Canton, OH
Active · expires Aug 31, 2028
CLIA Number36D0866492
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2026
Certificate Expiration DateAugust 31, 2028
Laboratory DirectorNabil Fahmy
Laboratory Phone(330) 305-2020
Laboratory LocationDayton Gastroenterology, LLC Dba Gastroenterology And Hepatology Specialists4360 Fulton Drive, NW Suite B, Canton, OH 44718
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Accreditation 36D0711013

Dayton Gastroenterology, LLC · Dayton, OH
Active · expires Jun 23, 2028
CLIA Number36D0711013
Laboratory TypePhysician Office
Certificate Effective DateJune 24, 2026
Certificate Expiration DateJune 23, 2028
Laboratory DirectorGeoffrey Hahm
Laboratory Phone(937) 320-5050
Laboratory LocationDayton Gastroenterology, LLC75 Sylvania Drive, Dayton, OH 45440
CLIA data matches this NPI record on: Address Name Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Certificate of Waiver 36D2112172

Dayton Gastroenterology, LLC · Beavercreek, OH
Active · expires Apr 24, 2028
CLIA Number36D2112172
Laboratory TypePhysician Office
Certificate Effective DateApril 25, 2026
Certificate Expiration DateApril 24, 2028
Laboratory DirectorLisa M. Stone
Laboratory Phone(937) 320-5050
Laboratory LocationDayton Gastroenterology, LLC4200 Indian Ripple Road, Beavercreek, OH 45440
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 36D1065618

Dayton Gastroenterology, LLC · Englewood, OH
Active · expires Mar 5, 2027
CLIA Number36D1065618
Laboratory TypePhysician Office
Certificate Effective DateMarch 6, 2025
Certificate Expiration DateMarch 5, 2027
Laboratory DirectorMichael W. Gorsky
Laboratory Phone(937) 320-5050
Laboratory LocationDayton Gastroenterology, LLC9000 North Main Street, Englewood, OH 45415
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 36D2317685

Dayton Gastroenterology, LLC Dba Great Lakes Gastroenterology LLC · Mentor, OH
Active · expires Jan 28, 2027
CLIA Number36D2317685
Laboratory TypePhysician Office
Certificate Effective DateJanuary 29, 2025
Certificate Expiration DateJanuary 28, 2027
Laboratory DirectorKeith A. Friedenberg
Laboratory Phone(440) 205-1225
Laboratory LocationDayton Gastroenterology, LLC Dba Great Lakes Gastroenterology LLC8877 Mentor Avenue, Mentor, OH 44060
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Dayton Gastroenterology LLC's NPI number?

The NPI number for Dayton Gastroenterology LLC is 1134345705. It was assigned to this organization in the NPPES registry on April 18, 2007. The provider is doing business as Digestive Disease Consultants, Great Lakes Gastroenterology and Gastroenterology and Hepatology Specialists.

Where is Dayton Gastroenterology LLC located?

Dayton Gastroenterology LLC is located at 75 Sylvania Dr, Dayton, OH 45440. The listed phone number is (937) 320-5050.

What is Dayton Gastroenterology LLC's specialty?

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

Is Dayton Gastroenterology LLC enrolled in Medicare?

Yes. Dayton Gastroenterology LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Dayton Gastroenterology LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 74 clinicians in 5 Medicare specialties reassign their Medicare billing to Dayton Gastroenterology LLC. 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 (31), Certified Registered Nurse Anesthetist (CRNA) (14) and Nurse Practitioner (14). Of these, 21 practice at this address and 32 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Dayton Gastroenterology LLC hold CLIA laboratory certificates?

Yes. 8 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does Dayton Gastroenterology LLC 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 Dayton Gastroenterology LLC 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 Dayton Gastroenterology LLC was last updated on February 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.