John E. Oxler Jr., MD
NPI 1083619555ActiveIndividual· Internal Medicine· Shawnee Mission, KS
Internal Medicine (MD) in Shawnee Mission, Kansas, trained at University of Kansas School of Med (Kc/Wich/Sal) (class of 1972). Their prescriptions cost Medicare Part D more than their services did: $444,845 for 9,138 claims, against $130,795 paid for services in 2024. Abbvie Inc. was the largest of 16 companies reporting payments in 2025, $565.25 in all, mostly food and beverage.
Overview
| NPI | 1083619555 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 20, 2005 |
| Last updated in NPPES | May 6, 2021 |
| Certified by provider | Apr 8, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 0415852 | KS |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 361 |
|---|---|
| Services billed | 3,673 across 60 procedure codes |
| Paid by Medicare | $130,795 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,138 · 19,964 30-day fills |
|---|---|
| Patients | 600 |
| Total drug cost | $444,845 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | University of Kansas School of Med (Kc/Wich/Sal) |
|---|---|
| Graduation year | 1972 |
| Medicare specialty | Internal Medicine |
Industry payments (Open Payments)
- 2025$565.25 · 32 payments from 16 companies
- 2024$1,782 · 117 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $144.08 | 9 |
| Shield Therapeutics Inc | $71.18 | 2 |
| Lilly USA, LLC | $54.86 | 3 |
| Cequr Corporation | $35.90 | 2 |
| Ardelyx, Inc. | $35.32 | 2 |
What the 2025 payments were for
- Food and Beverage$565.25 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 internal medicine physicians in Shawnee Mission · All internal medicine physicians in Kansas