Kristin K. Cassidy, MD
NPI 1366451411ActiveIndividual· Internal Medicine· Twin Lakes, WI
Internal Medicine (MD) in Twin Lakes, Wisconsin, trained at University of Wisconsin School of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $667,816 for 8,642 claims, against $89,233 paid for services in 2024.
Overview
| NPI | 1366451411 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 7, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
| Certified by provider | Nov 30, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 40094 | 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 | 283 |
|---|---|
| Services billed | 9,966 across 33 procedure codes |
| Paid by Medicare | $89,233 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,642 · 19,542 30-day fills |
|---|---|
| Patients | 561 |
| Total drug cost | $667,816 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Aurora Medical Group, Inc.Milwaukee, WI · 3,813 clinicians
- Advantage Physical Therapy and Sports Rehab, LLCKenosha, WI · 294 clinicians
Hospital affiliations
- Aurora Lakeland Medical CenterElkhorn, WI
- Aurora Medical Center KenoshaKenosha, WI
- Aurora Memorial Hospital BurlingtonBurlington, WI
Other facilities
- Aurora at HomeHome health agency · Milwaukee, WI
- Aurora at HomeHospice · Wauwatosa, WI
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records