Robert William Irwin, MD
NPI 1215948039ActiveIndividual· Internal Medicine· Oro Valley, AZ
Internal Medicine (MD) in Oro Valley, Arizona, trained at University of Missouri, Columbia School of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $633,123 for 3,493 claims, against $36,211 paid for services in 2024. Boston Scientific Corporation reported $21.69 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1215948039 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 10, 2006 |
| Last updated in NPPES | Nov 8, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 28417 | 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 (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 205 |
|---|---|
| Services billed | 856 across 27 procedure codes |
| Paid by Medicare | $36,211 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,493 · 8,211 30-day fills |
|---|---|
| Patients | 217 |
| Total drug cost | $633,123 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Missouri, Columbia School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
Medical group
- Desert Sage Internal Medicine LtdOro Valley, AZ · 2 clinicians
Hospital affiliations
- Northwest Medical CenterTucson, AZ
- Oro Valley HospitalOro Valley, AZ
Other facilities
- Bayada Home Health Care, IncHome health agency · Tucson, AZ
Industry payments (Open Payments)
- 2024$21.69 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $21.69 | 1 |
What the 2024 payments were for
- Food and Beverage$21.69 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 19 internal medicine physicians in Oro Valley · All internal medicine physicians in Arizona