Shannon K. Oates, MD
NPI 1235198342ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Lafayette, IN
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Lafayette, Indiana, trained at Indiana University School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $2,601,172 for 7,742 claims, against $180,466 paid for services in 2024. Medtronic, Inc. reported $39.48 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1235198342 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 20, 2006 |
| Last updated in NPPES | Feb 3, 2021 |
| Certified by provider | Feb 3, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 01037819A | IN |
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 - Endocrinology (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 847 |
|---|---|
| Services billed | 6,233 across 22 procedure codes |
| Paid by Medicare | $180,466 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,742 · 17,371 30-day fills |
|---|---|
| Patients | 773 |
| Total drug cost | $2,601,172 |
| Generic share | 48% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical groups
- Iu Health Medical Group LLCIndianapolis, IN · 4,462 clinicians
- Arnett Clinic LLCLafayette, IN · 390 clinicians
Hospital affiliations
- Indiana University Health Arnett HospitalLafayette, IN
- Indiana University Health Frankfort IncFrankfort, IN
- Indiana University Health White Memorial HospitalMonticello, IN
- Memorial HospitalLogansport, IN
- Pulaski Memorial HospitalWinamac, IN
Industry payments (Open Payments)
- 2025$39.48 · 1 payment from 1 company
- 2024$22.10 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $39.48 | 1 |
What the 2025 payments were for
- Food and Beverage$39.48 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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