Teresa Ann Studer, MD
NPI 1366949026ActiveIndividual· Family Medicine· Sparta, WI
Family Medicine (MD) with Spencer Municipal Hospital, practicing in Sparta, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $725,546 for 6,074 claims, against $8,819 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 2 companies reporting payments in 2025, $42.13 in all, mostly food and beverage. Lists Lakes Regional Healthcare and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1366949026 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 10, 2018 |
| Last updated in NPPES | Feb 21, 2025 |
| Certified by provider | Feb 21, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 72017 | 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 - Family Practice (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 154 |
|---|---|
| Services billed | 230 across 22 procedure codes |
| Paid by Medicare | $8,819 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,074 · 11,298 30-day fills |
|---|---|
| Patients | 365 |
| Total drug cost | $725,546 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- Spencer Municipal HospitalSpencer, IA · 92 clinicians
Hospital affiliations
- Lakes Regional HealthcareSpirit Lake, IA
- Mayo Clinic Health System-Franciscan Medical Center IncLa Crosse, WI
- Mayo Clinic Hlth Systm Franciscan Hlthcare SpartaSparta, WI
- Palo Alto County HospitalEmmetsburg, IA
- Spencer Municipal HospitalSpencer, IA
Other facilities
- Avera at Home of Spencer HospitalHome health agency · Spencer, IA
- Avera @ Home of Spencer HospitalHospice · Spencer, IA
- Spencer Post Acute Rehabilitation CenterNursing home · Spencer, IA
Industry payments (Open Payments)
- 2025$42.13 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $22.52 | 1 |
| Dexcom, Inc. | $19.61 | 1 |
What the 2025 payments were for
- Food and Beverage$42.13 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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