Katherine Lynn Erstad, NP
NPI 1497033609ActiveIndividual· Nurse Practitioner· Appleton, WI
Nurse Practitioner (NP) with Fox Valley Surgical Associates Ltd, practicing in Appleton, Wisconsin. Enrolled in Medicare as practitioner - nurse practitioner. Sequel Med Tech, LLC was the largest of 3 companies reporting payments in 2025, $52.85 in all, mostly food and beverage. Lists Thedacare Regional Med Ctr - Neenah and 1 other hospital as hospital affiliations.
Overview
| NPI | 1497033609 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Jul 22, 2011 |
| Last updated in NPPES | Nov 13, 2024 |
| Certified by provider | Nov 13, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 4894-33 | WI |
| Nurse Practitioner, Family | 363LF0000X | TEMP | TX |
| Nurse Practitioner, Family | 363LF0000X | 4894 | 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 - Nurse Practitioner (WI) |
|---|
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Fox Valley Surgical Associates LtdAppleton, WI · 35 clinicians
Hospital affiliations
- Thedacare Regional Med Ctr - NeenahNeenah, WI
- Thedacare Regional Medical Center - Appleton IncAppleton, WI
Industry payments (Open Payments)
- 2025$52.85 · 3 payments from 3 companies
- 2024$20.90 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sequel Med Tech, LLC | $20.78 | 1 |
| Exact Sciences Corporation | $18.28 | 1 |
| Insulet Corporation | $13.79 | 1 |
What the 2025 payments were for
- Food and Beverage$52.85 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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