Dean Delmastro, MD
NPI 1699875922ActiveIndividual· Internal Medicine· Eau Claire, WI
Internal Medicine (MD) in Eau Claire, Wisconsin, trained at Rush Medical College of Rush University (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $2,678,439 for 998 claims, against $40,031 paid for services in 2024.
Overview
| NPI | 1699875922 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 25, 2006 |
| Last updated in NPPES | Sep 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 37184 | WI |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 37184 | WI |
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 - Hematology/Oncology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 185 |
|---|---|
| Services billed | 8,465 across 19 procedure codes |
| Paid by Medicare | $40,031 |
Part D prescriptions in 2024
| Prescriptions (claims) | 998 · 1,386 30-day fills |
|---|---|
| Patients | 138 |
| Total drug cost | $2,678,439 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- McHs Hospitals IncMarshfield, WI · 1,197 clinicians
Hospital affiliations
- Aspirus Stanley HospitalStanley, WI
- Marshfield Medical CenterMarshfield, WI
- Marshfield Medical Center - Eau ClaireEau Claire, WI
- Marshfield Medical Center - LadysmithLadysmith, WI
- Marshfield Medical Center - Rice LakeRice Lake, WI
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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