Ryan Paul Chastant, M.D.
NPI 1619118684ActiveIndividual· Otolaryngology· Lafayette, LA
Otolaryngology (M.D.) in Lafayette, Louisiana, trained at Louisiana State University School of Medicine in New Orleans (class of 2009). 543 Medicare patients in 2024, $157,142 paid; nearly all of their 1,275 Part D prescriptions were generic (96%). Genzyme Corporation was the largest of 8 companies reporting payments in 2025, $467.43 in all, mostly food and beverage.
Overview
| NPI | 1619118684 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 20, 2009 |
| Last updated in NPPES | Jul 7, 2021 |
| Certified by provider | Jul 7, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | MD.207970 | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Otolaryngology (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 543 |
|---|---|
| Services billed | 8,115 across 95 procedure codes |
| Paid by Medicare | $157,142 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,275 · 1,833 30-day fills |
|---|---|
| Patients | 385 |
| Total drug cost | $28,676 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Otolaryngology |
| Secondary specialties | Plastic And Reconstructive Surgery |
Medical group
- Acadian Ear Nose Throat and Facial Plastic Surgery APMCLafayette, LA · 9 clinicians
Hospital affiliations
- Abrom Kaplan Memorial HospitalKaplan, LA
- Lafayette Surgical Specialty HospitalLafayette, LA
- Ochsner Lafayette General Medical CenterLafayette, LA
- Ochsner St Martin HospitalBreaux Bridge, LA
- Our Lady of Lourdes Regional Medical Center, IncLafayette, LA
Industry payments (Open Payments)
- 2025$467.43 · 18 payments from 8 companies
- 2024$208.11 · 11 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $120.38 | 6 |
| Regeneron Healthcare Solutions, Inc. | $99.23 | 1 |
| Abbvie Inc. | $57.04 | 3 |
| Ars Pharmaceuticals Operations, Inc. | $48.11 | 2 |
| Integra Lifesciences Corporation | $45.78 | 1 |
What the 2025 payments were for
- Food and Beverage$368.20 · 17 payments
- Education$99.23 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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