Olaitan Adeniji, MD
NPI 1255321089ActiveIndividual· Internal Medicine, Gastroenterology· Snellville, GA
Internal Medicine, Gastroenterology (MD) with Gastroenterology Specialists of Gwinnett, P.C., practicing in Snellville, Georgia. Their prescriptions cost Medicare Part D more than their services did: $500,610 for 1,124 claims, against $65,605 paid for services in 2024. Abbvie Inc. was the largest of 19 companies reporting payments in 2025, $1,805 in all, mostly food and beverage. Lists Northside Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1255321089 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 24, 2005 |
| Last updated in NPPES | Jan 18, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 52670 | GA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 234 |
|---|---|
| Services billed | 639 across 30 procedure codes |
| Paid by Medicare | $65,605 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,124 · 2,089 30-day fills |
|---|---|
| Patients | 431 |
| Total drug cost | $500,610 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Gastroenterology Specialists of Gwinnett, P.C.Lawrenceville, GA · 7 clinicians
Hospital affiliations
- Northside HospitalAtlanta, GA
- Northside Hospital DuluthDuluth, GA
- Northside Hospital GwinnettLawrenceville, GA
- Piedmont Eastside Medical CenterSnellville, GA
Industry payments (Open Payments)
- 2025$1,805 · 72 payments from 19 companies
- 2024$1,621 · 57 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $599.65 | 22 |
| Janssen Biotech, Inc. | $347.05 | 8 |
| Boston Scientific Corporation | $136.24 | 1 |
| Genzyme Corporation | $102.69 | 4 |
| Madrigal Pharmaceuticals | $98.09 | 5 |
What the 2025 payments were for
- Food and Beverage$1,805 · 72 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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