John P. Milliken, MD
NPI 1013048057ActiveIndividual· Internal Medicine, Gastroenterology· Traverse City, MI
Internal Medicine, Gastroenterology (MD) in Traverse City, Michigan, trained at Wayne State University School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $1,062,130 for 1,305 claims, against $108,676 paid for services in 2024. Abbvie Inc. was the largest of 22 companies reporting payments in 2025, $1,815 in all, mostly food and beverage.
Overview
| NPI | 1013048057 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Mar 9, 2007 |
| Last updated in NPPES | Dec 23, 2020 |
| Certified by provider | Dec 23, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 4301 052861 | MI |
| Internal Medicine, Hepatology | 207RI0008X | 4301052861 | 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 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 - Gastroenterology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 545 |
|---|---|
| Services billed | 1,106 across 41 procedure codes |
| Paid by Medicare | $108,676 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,305 · 1,761 30-day fills |
|---|---|
| Patients | 593 |
| Total drug cost | $1,062,130 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Kalkaska Memorial Health CenterKalkaska, MI · 58 clinicians
Hospital affiliations
- Kalkaska Memorial Health CenterKalkaska, MI
- Munson Healthcare Cadillac HospitalCadillac, MI
- Munson Healthcare Grayling HospitalGrayling, MI
- Munson Healthcare Otsego Memorial HospitalGaylord, MI
- Munson Medical CenterTraverse City, MI
Industry payments (Open Payments)
- 2025$1,815 · 94 payments from 22 companies
- 2024$1,736 · 86 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $462.01 | 26 |
| Takeda Pharmaceuticals U.S.A., Inc. | $223.56 | 12 |
| Janssen Biotech, Inc. | $205.73 | 10 |
| Madrigal Pharmaceuticals | $154.02 | 8 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $113.97 | 6 |
What the 2025 payments were for
- Food and Beverage$1,791 · 92 payments
- Education$24.24 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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