Gregory A. Ambuske, D.O.
NPI 1093920746ActiveIndividual· Internal Medicine· Colorado Springs, CO
Internal Medicine (D.O.) in Colorado Springs, Colorado, trained at Philadelphia College of Osteopathic Medicine (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $98,892 for 817 claims, against $23,895 paid for services in 2024.
Overview
| NPI | 1093920746 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | May 14, 2007 |
| Last updated in NPPES | Jan 8, 2021 |
| Certified by provider | Jan 8, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | DR.0056364 | CO |
| Internal Medicine | 207R00000X | OS013889 | PA |
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 (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 144 |
|---|---|
| Services billed | 376 across 27 procedure codes |
| Paid by Medicare | $23,895 |
Part D prescriptions in 2024
| Prescriptions (claims) | 817 · 1,901 30-day fills |
|---|---|
| Patients | 164 |
| Total drug cost | $98,892 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Philadelphia College of Osteopathic Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Internal Medicine |
Medical group
- Salida Hospital DistrictSalida, CO · 107 clinicians
Hospital affiliations
- Heart of the Rockies Regional Medical CenterSalida, CO
- St Anthony Summit Medical CenterFrisco, 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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