Jason R. Ladwig, M.D.
NPI 1073705935ActiveIndividual· Internal Medicine, Pulmonary Disease· Kalamazoo, MI
Internal Medicine, Pulmonary Disease (M.D.) in Kalamazoo, Michigan, trained at Michigan State University College of Human Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $1,890,399 for 4,254 claims, against $45,758 paid for services in 2024. Insmed, Inc. was the largest of 4 companies reporting payments in 2025, $121.95 in all, mostly food and beverage.
Overview
| NPI | 1073705935 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 15, 2007 |
| Last updated in NPPES | May 2, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 4301076107 | MI |
| Internal Medicine | 207R00000X | 01058980A | IN |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 01058980A | IN |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 01058980A | IN |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 4301076107 | MI |
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 - Pulmonary Disease (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 434 |
|---|---|
| Services billed | 757 across 22 procedure codes |
| Paid by Medicare | $45,758 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,254 · 5,693 30-day fills |
|---|---|
| Patients | 613 |
| Total drug cost | $1,890,399 |
Education and affiliations
| Medical school | Michigan State University College of Human Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
Medical group
- Ascension Medical Group PromedKalamazoo, MI · 262 clinicians
Hospital affiliations
- Borgess Medical CenterKalamazoo, MI
- Bronson Battle Creek HospitalBattle Creek, MI
- Bronson Methodist HospitalKalamazoo, MI
- Three Rivers HealthThree Rivers, MI
Other facilities
- Beacon PlainwellLong-term care hospital · Plainwell, MI
Industry payments (Open Payments)
- 2025$121.95 · 5 payments from 4 companies
- 2024$197.25 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Insmed, Inc. | $45.26 | 2 |
| Genzyme Corporation | $27.91 | 1 |
| Pulmonx Corporation | $25.42 | 1 |
| Glaxosmithkline, LLC. | $23.36 | 1 |
What the 2025 payments were for
- Food and Beverage$121.95 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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