Nathan Demchuk, DO
NPI 1114380540ActiveIndividual· Internal Medicine· Kalamazoo, MI
Internal Medicine (DO) in Kalamazoo, Michigan, trained at Michigan State University College of Osteopathic Medicine (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $303,774 for 3,386 claims, against $35,523 paid for services in 2024. Abbott Laboratories reported $19.01 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1114380540 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Apr 2, 2016 |
| Last updated in NPPES | Aug 21, 2023 |
| Certified by provider | Aug 21, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 5101027202 | 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 - Internal Medicine (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 129 |
|---|---|
| Services billed | 512 across 27 procedure codes |
| Paid by Medicare | $35,523 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,386 · 6,521 30-day fills |
|---|---|
| Patients | 419 |
| Total drug cost | $303,774 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Bronson Methodist HospitalKalamazoo, MI · 729 clinicians
Hospital affiliations
- Borgess Medical CenterKalamazoo, MI
- Bronson Battle Creek HospitalBattle Creek, MI
- Bronson Lakeview HospitalPaw Paw, MI
- Bronson Methodist HospitalKalamazoo, MI
- Bronson South Haven HospitalSouth Haven, MI
Other facilities
- Elara CaringHome health agency · Jackson, MI
- Mary Free Bed at Home, LLCHome health agency · Grand Rapids, MI
Industry payments (Open Payments)
- 2025$19.01 · 1 payment from 1 company
- 2024$202.46 · 10 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $19.01 | 1 |
What the 2025 payments were for
- Food and Beverage$19.01 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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