Tamara Jo Obrien, CNP
NPI 1619213527ActiveIndividual· Nurse Practitioner, Family· Mankato, MN
Nurse Practitioner, Family (CNP) with Mayo Clinic Health System-Southwest Minnesota Region and 2 other groups, practicing in Mankato, Minnesota. Their prescriptions cost Medicare Part D more than their services did: $2,477,568 for 1,074 claims, against $37,050 paid for services in 2024. Pfizer Inc. reported $26.00 in payments in 2025, mostly education. Lists Mayo Clinic Health System - Mankato and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1619213527 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CNP |
| Sole proprietor | No |
| NPI issued | Dec 20, 2012 |
| Last updated in NPPES | Jun 26, 2023 |
| Certified by provider | Jun 26, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | R1290592 | MN |
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 - Nurse Practitioner (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 220 |
|---|---|
| Services billed | 749 across 12 procedure codes |
| Paid by Medicare | $37,050 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,074 · 1,843 30-day fills |
|---|---|
| Patients | 205 |
| Total drug cost | $2,477,568 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Mayo Clinic Health System-Southwest Minnesota RegionMankato, MN · 661 clinicians
- Mayo Clinic Health System-Southeast Minnesota RegionAustin, MN · 551 clinicians
- Northfield HospitalFarmington, MN · 121 clinicians
Hospital affiliations
- Mayo Clinic Health System - MankatoMankato, MN
- Mayo Clinic Health System - WasecaWaseca, MN
- Mayo Clinic Health System New PragueNew Prague, MN
- Mayo Clinic Health System St. JamesSt James, MN
- Northfield HospitalNorthfield, MN
Industry payments (Open Payments)
- 2025$26.00 · 1 payment from 1 company
- 2024$36.94 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $26.00 | 1 |
What the 2025 payments were for
- Education$26.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 44 family nurse practitioners in Mankato · All family nurse practitioners in Minnesota