Justin William Fontenot, MD
NPI 1881790632ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Lafayette, LA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Lafayette, Louisiana, trained at Louisiana State University School of Medicine in Shreveport (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $1,972,592 for 5,791 claims, against $459,525 paid for services in 2024. Lilly USA, LLC was the largest of 29 companies reporting payments in 2025, $72,645 in all, mostly speaking and faculty fees.
Overview
| NPI | 1881790632 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 16, 2006 |
| Last updated in NPPES | Jul 24, 2020 |
| Certified by provider | Jul 24, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 026605 | 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 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 - Endocrinology (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,185 |
|---|---|
| Services billed | 19,080 across 46 procedure codes |
| Paid by Medicare | $459,525 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,791 · 10,296 30-day fills |
|---|---|
| Patients | 851 |
| Total drug cost | $1,972,592 |
| Generic share | 51% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in Shreveport |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Endocrinology |
| Secondary specialties | Emergency Medicine, Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Lafayette Arthritis and Endocrine Clinic APMCLafayette, LA · 12 clinicians
Hospital affiliations
- Abbeville General HospitalAbbeville, LA
- Ochsner Lafayette General Medical CenterLafayette, LA
- Ochsner St Martin HospitalBreaux Bridge, LA
- Opelousas General Health SystemOpelousas, LA
- Our Lady of Lourdes Regional Medical Center, IncLafayette, LA
Other facilities
- Centerwell Home HealthHome health agency · Jennings, LA
Industry payments (Open Payments)
- 2025$72,645 · 198 payments from 29 companies
- 2024$40,669 · 172 payments from 27 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $39,047 | 65 |
| Amgen Inc. | $31,786 | 54 |
| Beta Bionics, Inc. | $296.73 | 8 |
| Abbott Laboratories | $201.88 | 5 |
| Insulet Corporation | $167.12 | 8 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$57,526 · 52 payments
- Travel and Lodging$11,654 · 22 payments
- Food and Beverage$3,458 · 123 payments
- Education$7.96 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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