Steffan John May, M.D.
NPI 1194915397ActiveIndividual· Internal Medicine· Bozeman, MT
Internal Medicine (M.D.) in Bozeman, Montana, trained at Ohio State University College of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $508,814 for 7,759 claims, against $46,120 paid for services in 2024. Astellas Pharma US Inc reported $23.75 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1194915397 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 25, 2007 |
| Last updated in NPPES | Apr 9, 2025 |
| Certified by provider | Apr 9, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 12395 | MT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (MT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 471 |
|---|---|
| Services billed | 1,358 across 21 procedure codes |
| Paid by Medicare | $46,120 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,759 · 17,394 30-day fills |
|---|---|
| Patients | 593 |
| Total drug cost | $508,814 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Ohio State University College of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Bozeman Health Deaconess HospitalBozeman, MT · 320 clinicians
Hospital affiliations
- Billings Clinic HospitalBillings, MT
- Bozeman Health Big Sky Medical CenterBig Sky, MT
- Bozeman Health Deaconess HospitalBozeman, MT
- Livingston HealthcareLivingston, MT
- Madison Valley Medical CenterEnnis, MT
Other facilities
- Enhabit Home HealthHome health agency · Helena, MT
Industry payments (Open Payments)
- 2025$23.75 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $23.75 | 1 |
What the 2025 payments were for
- Food and Beverage$23.75 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 40 internal medicine physicians in Bozeman · All internal medicine physicians in Montana