Jake Graehm Halvorsen, D.O.
NPI 1497015002ActiveIndividual· Internal Medicine· Warren, MI
Internal Medicine (D.O.) in Warren, Michigan, trained at Rocky Vista University College of Osteopathic Med (class of 2012). 121 Medicare patients in 2024, $16,735 paid; nearly all of their 364 Part D prescriptions were generic (93%).
Overview
| NPI | 1497015002 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | May 17, 2012 |
| Last updated in NPPES | May 17, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 5101019943 | MI |
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 (CO); Practitioner - Emergency Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 121 |
|---|---|
| Services billed | 174 across 19 procedure codes |
| Paid by Medicare | $16,735 |
Part D prescriptions in 2024
| Prescriptions (claims) | 364 · 365 30-day fills |
|---|---|
| Patients | 219 |
| Total drug cost | $4,245 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Rocky Vista University College of Osteopathic Med |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Internal Medicine |
Medical group
- Usacs Community Emergency Services of Colorado Inc.Arvada, CO · 175 clinicians
Hospital affiliations
- Adventhealth Castle RockCastle Rock, CO
- Adventhealth LittletonLittleton, CO
- Adventhealth ParkerParker, CO
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 135 internal medicine physicians in Warren · All internal medicine physicians in Michigan