Mark Andrew Kocab, MD
NPI 1942271606ActiveIndividual· Internal Medicine, Gastroenterology· Kalamazoo, MI
Internal Medicine, Gastroenterology (MD) with Bronson Methodist Hospital and 2 other groups, practicing in Kalamazoo, Michigan. Their prescriptions cost Medicare Part D more than their services did: $922,446 for 1,393 claims, against $180,257 paid for services in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $87.52 in all, mostly food and beverage. Lists Bronson Methodist Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1942271606 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 31, 2006 |
| Last updated in NPPES | May 8, 2025 |
| Certified by provider | May 8, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | ME0774610 | FL |
| Internal Medicine, Gastroenterology | 207RG0100X | 74150 | TN |
| Internal Medicine, Gastroenterology | 207RG0100X | 143712 | MT |
| Internal Medicine, Gastroenterology | 207RG0100X | 4301512571 | 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 - Gastroenterology (FL); Practitioner - Gastroenterology (ID); Practitioner - Gastroenterology (MI); Practitioner - Gastroenterology (MT); Practitioner - Gastroenterology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 550 |
|---|---|
| Services billed | 4,939 across 53 procedure codes |
| Paid by Medicare | $180,257 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,393 · 2,809 30-day fills |
|---|---|
| Patients | 394 |
| Total drug cost | $922,446 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- Bronson Methodist HospitalKalamazoo, MI · 729 clinicians
- Wellmont Medical Associates IncKingsport, TN · 433 clinicians
- Kootenai Health IncOrofino, ID · 399 clinicians
Hospital affiliations
- Bronson Methodist HospitalKalamazoo, MI
- Kootenai HealthCoeur D'Alene, ID
- Wellmont Bristol Regional Medical CenterBristol, TN
- Wellmont Holston Valley Medical CenterKingsport, TN
Industry payments (Open Payments)
- 2025$87.52 · 4 payments from 2 companies
- 2024$764.89 · 32 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $63.22 | 3 |
| Regeneron Healthcare Solutions, Inc. | $24.30 | 1 |
What the 2025 payments were for
- Food and Beverage$87.52 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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