Bart J. Isaacson, MD
NPI 1689786824ActiveIndividual· Internal Medicine· Weston, WI
Internal Medicine (MD) in Weston, Wisconsin, trained at Medical College of Wisconsin (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $788,189 for 12,428 claims, against $55,424 paid for services in 2024. Abbvie Inc. reported $31.15 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1689786824 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 31, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 39893 | WI |
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 (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 362 |
|---|---|
| Services billed | 1,128 across 18 procedure codes |
| Paid by Medicare | $55,424 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,428 · 29,346 30-day fills |
|---|---|
| Patients | 737 |
| Total drug cost | $788,189 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Internal Medicine |
Medical group
- McHs Hospitals IncMarshfield, WI · 1,197 clinicians
Hospital affiliations
- Aspirus Wausau HospitalWausau, WI
- Marshfield Medical CenterMarshfield, WI
- Marshfield Medical Center - MinocquaMinocqua, WI
- Marshfield Medical Center - WestonWeston, WI
Other facilities
- Aspirus at HomeHome health agency · Wausau, WI
- Compassus Home HealthHome health agency · Marshfield, WI
- Aspirus at HomeHospice · Wausau, WI
- Compassus WausauHospice · Plover, WI
- Rennes Health and Rehab Center-WestonNursing home · Weston, WI
Industry payments (Open Payments)
- 2025$31.15 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $31.15 | 1 |
What the 2025 payments were for
- Food and Beverage$31.15 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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