Carolyn Marie Grachen, DO
NPI 1659073294ActiveIndividual· Internal Medicine· Lone Tree, CO
Internal Medicine (DO) in Lone Tree, Colorado, licensed in CO, with an NPI issued in March 2023. Part D covered 292 prescriptions written in 2024, 76% of them generic.
Overview
| NPI | 1659073294 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 20, 2023 |
| Last updated in NPPES | Jun 16, 2026 |
| Certified by provider | Jun 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | DR.0075574 | CO |
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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 292 · 600 30-day fills |
|---|---|
| Patients | 59 |
| Total drug cost | $53,253 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Internal Medicine |
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 55 internal medicine physicians in Lone Tree · All internal medicine physicians in Colorado