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

Frequently asked questions

Auto-generated from federal data
What is Dr. Katherine Erstad's medical specialty?
Dr. Katherine Erstad practices Nurse Practitioner in Appleton, WI.
Where does Dr. Katherine Erstad practice?
Dr. Katherine Erstad practices at 145 W Calumet St, Appleton, WI 549154934. Office phone: 9209674141.
What is Dr. Katherine Erstad's NPI?
Dr. Katherine Erstad's National Provider Identifier (NPI) is 1497033609, issued by NPPES.
Does Dr. Katherine Erstad accept Medicare assignment?
Yes. Dr. Katherine Erstad accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.