Timothy J. Grass, D.O.
NPI 1982719134ActiveIndividual· Family Medicine· Franklin, WI
Family Medicine (D.O.) in Franklin, Wisconsin, trained at Midwestern University, Chicago College of Osteopathic Med (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $331,877 for 5,263 claims, against $36,354 paid for services in 2024. Exact Sciences Corporation reported $39.66 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1982719134 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Aug 20, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 38321 | 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 - Family Practice (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 139 |
|---|---|
| Services billed | 579 across 39 procedure codes |
| Paid by Medicare | $36,354 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,263 · 13,049 30-day fills |
|---|---|
| Patients | 502 |
| Total drug cost | $331,877 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Midwestern University, Chicago College of Osteopathic Med |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Family Practice |
Medical group
- Ascension Medical Group-Southeast Wisconsin IncBrookfield, WI · 545 clinicians
Hospital affiliations
- Ascension All Saints HospitalRacine, WI
- Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI
- Ascension Se Wisconsin HospitalMilwaukee, WI
- Ascension St Francis HospitalMilwaukee, WI
Other facilities
- Ascension at HomeHome health agency · Milwaukee, WI
- Aurora at HomeHome health agency · Milwaukee, WI
Industry payments (Open Payments)
- 2025$39.66 · 2 payments from 1 company
- 2024$51.06 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $39.66 | 2 |
What the 2025 payments were for
- Food and Beverage$39.66 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 family medicine physicians in Franklin · All family medicine physicians in Wisconsin