John L. Markert, MD
NPI 1003922923ActiveIndividual· Family Medicine· Louisville, KY
Family Medicine (MD) in Louisville, Kentucky, trained at University of Louisville School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $1,978,937 for 21,732 claims, against $241,989 paid for services in 2024. Novo Nordisk Inc was the largest of 16 companies reporting payments in 2025, $849.97 in all, mostly food and beverage.
Overview
| NPI | 1003922923 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 22, 2006 |
| Last updated in NPPES | Dec 13, 2022 |
| Certified by provider | Dec 13, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 38251 | KY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (KY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 784 |
|---|---|
| Services billed | 22,282 across 54 procedure codes |
| Paid by Medicare | $241,989 |
Part D prescriptions in 2024
| Prescriptions (claims) | 21,732 · 48,232 30-day fills |
|---|---|
| Patients | 1,286 |
| Total drug cost | $1,978,937 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Louisville School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Markert Family Practice PSCLouisville, KY · 3 clinicians
Hospital affiliations
- Baptist Health LagrangeLa Grange, KY
- Baptist Health LouisvilleLouisville, KY
- Norton Hospitals, IncLouisville, KY
- University of Louisville HospitalLouisville, KY
- Uofl Health - Jewish Hospital and Mary & Elizabeth HospitalLouisville, KY
Other facilities
- Amedisys Sp-Ky, LLC DBA Adoration Home HealthHome health agency · Louisville, KY
- Amedisys Sp-Ky, LLC DBA Adoration Home HealthHome health agency · Louisville, KY
- CaretendersHome health agency · Louisville, KY
- Norton Home HealthHome health agency · Louisville, KY
- Saint Joseph-Anc Home Care Services, LLC D/B/A Commonspirit at Home- LouisvilleHome health agency · Louisville, KY
Industry payments (Open Payments)
- 2025$849.97 · 44 payments from 16 companies
- 2024$711.66 · 38 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $232.68 | 9 |
| Astrazeneca Pharmaceuticals LP | $210.23 | 12 |
| Pfizer Inc. | $86.39 | 5 |
| Lilly USA, LLC | $55.08 | 3 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $37.98 | 2 |
What the 2025 payments were for
- Food and Beverage$849.97 · 44 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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