David S. Grauman, M.D., P.C., M.R.O.
NPI 1508993429ActiveIndividual· Internal Medicine· Flagstaff, AZ
Internal Medicine (M.D., P.C., M.R.O.) in Flagstaff, Arizona, licensed in AZ, with an NPI issued in February 2007. Their prescriptions cost Medicare Part D more than their services did: $61,326 for 806 claims, against $14,925 paid for services in 2024.
Overview
| NPI | 1508993429 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., P.C., M.R.O. |
| Sole proprietor | Yes |
| NPI issued | Feb 27, 2007 |
| Last updated in NPPES | May 20, 2026 |
| Certified by provider | May 20, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 75392 | AZ |
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 (MP) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 95 |
|---|---|
| Services billed | 245 across 8 procedure codes |
| Paid by Medicare | $14,925 |
Part D prescriptions in 2024
| Prescriptions (claims) | 806 · 811 30-day fills |
|---|---|
| Patients | 17 |
| Total drug cost | $61,326 |
| Generic share | 82% of claims |
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 40 internal medicine physicians in Flagstaff · All internal medicine physicians in Arizona