Patcharin Tanawattanacharoen, MD
NPI 1942300272ActiveIndividual· Internal Medicine, Hematology & Oncology· Eau Claire, WI
Internal Medicine, Hematology & Oncology (MD) with McHs Hospitals Inc, practicing in Eau Claire, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $2,185,893 for 1,021 claims, against $190,189 paid for services in 2024. Lists Marshfield Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1942300272 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 25, 2006 |
| Last updated in NPPES | Feb 16, 2024 |
| Certified by provider | Feb 16, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 42821 | WI |
| Internal Medicine | 207R00000X | 42821 | 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 | 341 |
|---|---|
| Services billed | 5,505 across 36 procedure codes |
| Paid by Medicare | $190,189 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,021 · 1,551 30-day fills |
|---|---|
| Patients | 197 |
| Total drug cost | $2,185,893 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- McHs Hospitals IncMarshfield, WI · 1,197 clinicians
Hospital affiliations
- Marshfield Medical CenterMarshfield, WI
- Marshfield Medical Center - Eau ClaireEau Claire, WI
- Marshfield Medical Center - LadysmithLadysmith, WI
- Marshfield Medical Center - NeillsvilleNeillsville, 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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