Doctor profile · Federal record

Dr. KATHERINE ERSTAD, NP

Nurse Practitioner · Family Nurse Practitioner · Family Nurse Practitioner · APPLETON, WI

  • NPI 1497033609
  • Accepts Medicare
  • 15 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
145 W CALUMET ST
APPLETON, WI 549154934
(920) 967-4141
fax (833) 972-1585

Credentials & registration

NPPES · NUCC
NPI registered
July 2011 — 15 yrs on file
Profile last updated
November 13, 2024
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
363L00000X — NUCC code
State licenses (3)
Wisconsin #4894-33 · Texas #TEMP · Wisconsin #4894

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1497033609. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$21
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Exact Sciences Corporation 1 $20.90

By nature of payment

Food and Beverage
$21

Hospital affiliations

CMS Hospital Compare

Methodology · sources used on this page

All figures on this page come from publicly available federal datasets. We do not edit, score, or summarise the underlying data. Profile generated May 20, 2026.

NPPES Provider identifiers and practice info May 11, 2026
Open Payments Industry payments to providers (Sunshine Act) May 11, 2026
Medicare Procedure Utilization Services and allowed amounts by HCPCS May 11, 2026
Medicare Part D Prescription drug claims May 11, 2026
CMS MIPS Quality performance scores May 11, 2026
OIG LEIE Federal exclusion / sanctions list May 11, 2026

Information based on publicly available federal data. Not medical advice. Report incorrect data ›