Margaret Lydia Carlson Fitzthum, RN, NP-C
NPI 1598034845ActiveIndividual· Nurse Practitioner, Family· Minneapolis, MN
Nurse Practitioner, Family (RN, NP-C) with Hennepin Healthcare System Inc and 1 other group, practicing in Minneapolis, Minnesota. Their prescriptions cost Medicare Part D more than their services did: $132,835 for 210 claims, against $2,075 paid for services in 2024. Lists Hennepin County Medical Center as a hospital affiliation.
Overview
| NPI | 1598034845 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RN, NP-C |
| Sole proprietor | Yes |
| NPI issued | Dec 15, 2011 |
| Last updated in NPPES | Dec 26, 2023 |
| Certified by provider | Dec 26, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 169610-9 | MN |
| Registered Nurse | 163W00000X | 169610-9 | MN |
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 - Nurse Practitioner (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 16 |
|---|---|
| Services billed | 45 across 13 procedure codes |
| Paid by Medicare | $2,075 |
Part D prescriptions in 2024
| Prescriptions (claims) | 210 · 230 30-day fills |
|---|---|
| Patients | 52 |
| Total drug cost | $132,835 |
| Generic share | 70% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Hennepin Healthcare System IncMinneapolis, MN · 871 clinicians
- Hennepin CountyMinneapolis, MN · 132 clinicians
Hospital affiliation
- Hennepin County Medical CenterMinneapolis, MN
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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