John Markus Deleeuw, DO
NPI 1770590846ActiveIndividual· Internal Medicine· Kirksville, MO
Internal Medicine (DO) with Davis County Hospital and 1 other group, practicing in Kirksville, Missouri. Their prescriptions cost Medicare Part D more than their services did: $79,241 for 678 claims, against $3,917 paid for services in 2024. Pfizer Inc. reported $21.43 in payments in 2025, mostly food and beverage. Lists Davis County Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1770590846 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Aug 2, 2006 |
| Last updated in NPPES | Jan 23, 2025 |
| Certified by provider | Jan 23, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | DO-06088 | IA |
| Internal Medicine | 207R00000X | 2006018696 | MO |
| Hospitalist | 208M00000X | 2006018696 | MO |
| Hospitalist | 208M00000X | DO-06088 | IA |
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 - Internal Medicine (IA); Practitioner - Internal Medicine (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 24 |
|---|---|
| Services billed | 51 across 7 procedure codes |
| Paid by Medicare | $3,917 |
Part D prescriptions in 2024
| Prescriptions (claims) | 678 · 965 30-day fills |
|---|---|
| Patients | 88 |
| Total drug cost | $79,241 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Davis County HospitalBloomfield, IA · 14 clinicians
- Kirksville Missouri Hospital Company LLCKirksville, MO · 6 clinicians
Hospital affiliations
- Davis County HospitalBloomfield, IA
- Northeast Regional Medical CenterKirksville, MO
Industry payments (Open Payments)
- 2025$21.43 · 1 payment from 1 company
- 2024$72.85 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $21.43 | 1 |
What the 2025 payments were for
- Food and Beverage$21.43 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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