Mark S. Skier, M.D.
NPI 1346234812ActiveIndividual· Internal Medicine· Bayview, WI
Internal Medicine (M.D.) in Bayview, Wisconsin, trained at Albert Einstein College of Medicine of Yeshiva University (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $932,688 for 10,979 claims, against $58,872 paid for services in 2024.
Overview
| NPI | 1346234812 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 9, 2005 |
| Last updated in NPPES | Jun 26, 2025 |
| Certified by provider | Jun 26, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 34018 | 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 | 183 |
|---|---|
| Services billed | 752 across 25 procedure codes |
| Paid by Medicare | $58,872 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,979 · 25,258 30-day fills |
|---|---|
| Patients | 757 |
| Total drug cost | $932,688 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Albert Einstein College of Medicine of Yeshiva University |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Aurora Advanced Healthcare, Inc.Milwaukee, WI · 1,124 clinicians
- Aamg Reach PLLCKenosha, WI · 51 clinicians
Hospital affiliations
- Aurora Medical CenterGrafton, WI
- Aurora St Lukes Medical CenterMilwaukee, WI
- West Allis Memorial HospitalWest Allis, 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
Other internal medicine physicians in Bayview
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