Michael Barker Jr., MD
NPI 1750701355ActiveIndividual· Internal Medicine, Gastroenterology· Baton Rouge, LA
Internal Medicine, Gastroenterology (MD) in Baton Rouge, Louisiana, trained at Louisiana State University School of Medicine in Shreveport (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $1,061,715 for 1,245 claims, against $123,741 paid for services in 2024. Abbvie Inc. was the largest of 17 companies reporting payments in 2025, $1,819 in all, mostly food and beverage.
Overview
| NPI | 1750701355 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 22, 2014 |
| Last updated in NPPES | Jul 6, 2021 |
| Certified by provider | Jul 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD.208206 | LA |
| Internal Medicine | 207R00000X | 37134 | AL |
| Internal Medicine | 207R00000X | MD.208206 | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (AL); Practitioner - Gastroenterology (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 275 |
|---|---|
| Services billed | 4,733 across 59 procedure codes |
| Paid by Medicare | $123,741 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,245 · 1,988 30-day fills |
|---|---|
| Patients | 343 |
| Total drug cost | $1,061,715 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in Shreveport |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical groups
- Texas Digestive Disease Consultants, PLLCFlower Mound, TX · 608 clinicians
- Lsuhn Billing LLCLafayette, LA · 206 clinicians
Hospital affiliations
- Baton Rouge General Medical CenterBaton Rouge, LA
- Our Lady of the Lake Regional Medical CenterBaton Rouge, LA
- Womans HospitalBaton Rouge, LA
Industry payments (Open Payments)
- 2025$1,819 · 99 payments from 17 companies
- 2024$1,184 · 72 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $613.11 | 33 |
| Janssen Biotech, Inc. | $299.26 | 9 |
| Madrigal Pharmaceuticals | $155.49 | 12 |
| Ardelyx, Inc. | $153.88 | 9 |
| Genzyme Corporation | $90.35 | 5 |
What the 2025 payments were for
- Food and Beverage$1,819 · 99 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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