Lisa A. Zittergruen, M.D.
NPI 1043446149ActiveIndividual· Family Medicine· Decorah, IA
Family Medicine (M.D.) with Winneshiek Medical Center, practicing in Decorah, Iowa. Their prescriptions cost Medicare Part D more than their services did: $241,163 for 3,898 claims, against $8,449 paid for services in 2024. Lists Winnmed as a hospital affiliation.
Overview
| NPI | 1043446149 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 3, 2009 |
| Last updated in NPPES | Mar 17, 2021 |
| Certified by provider | Mar 17, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MD-39307 | IA |
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 (IA); Practitioner - Family Practice (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 54 |
|---|---|
| Services billed | 139 across 15 procedure codes |
| Paid by Medicare | $8,449 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,898 · 8,225 30-day fills |
|---|---|
| Patients | 280 |
| Total drug cost | $241,163 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Family Practice |
| Secondary specialties | Obstetrics/Gynecology |
Medical group
- Winneshiek Medical CenterDecorah, IA · 101 clinicians
Hospital affiliation
- WinnmedDecorah, IA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 27 family medicine physicians in Decorah · All family medicine physicians in Iowa