William Garrett Ogg, MD
NPI 1881816619ActiveIndividual· Internal Medicine, Gastroenterology· Tupelo, MS
Internal Medicine, Gastroenterology (MD) in Tupelo, Mississippi, trained at University of Louisville School of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $1,002,490 for 1,234 claims, against $243,124 paid for services in 2024. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $403.85 in all, mostly food and beverage.
Overview
| NPI | 1881816619 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 2, 2007 |
| Last updated in NPPES | Feb 9, 2026 |
| Certified by provider | Feb 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 21994 | MS |
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 (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 693 |
|---|---|
| Services billed | 8,546 across 77 procedure codes |
| Paid by Medicare | $243,124 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,234 · 1,507 30-day fills |
|---|---|
| Patients | 423 |
| Total drug cost | $1,002,490 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | University of Louisville School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Gastroenterology |
Medical group
- Gastroenterology Center of the Midsouth PLLCJackson, TN · 149 clinicians
Hospital affiliations
- Magnolia Regional Health CenterCorinth, MS
- North Mississippi Medical CenterTupelo, MS
- North Mississippi Medical Center-Gilmore AmoryAmory, MS
Industry payments (Open Payments)
- 2025$403.85 · 27 payments from 10 companies
- 2024$551.19 · 37 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $148.20 | 14 |
| Genzyme Corporation | $46.29 | 2 |
| Ipsen Biopharmaceuticals, Inc | $38.48 | 2 |
| Phathom Pharmaceuticals, Inc. | $35.28 | 2 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $33.50 | 2 |
What the 2025 payments were for
- Food and Beverage$403.85 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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