Doctor profile · Federal record

Dr. Mackenzie Barker, APNP, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner · Oshkosh, WI

  • NPI 1467135814
  • 3 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4030 Treffert Drive
Oshkosh, WI 54901
(920) 235-4910
fax (920) 237-2051
Mailing address
Po Box 9
Winnebago, WI 549850009

Credentials & registration

NPPES · NUCC
NPI registered
August 2023 — 3 yrs on file
Specialty taxonomy
363LP0808X — NUCC code
State license (1)
Wisconsin #14367-33

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1467135814. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$156
Transactions
6
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Alkermes, INC. 4 $125.85
Teva Pharmaceuticals USA, INC. 2 $29.78

By nature of payment

Food and Beverage
$156

Frequently asked questions

Auto-generated from federal data
What is Dr. Mackenzie Barker's medical specialty?
Dr. Mackenzie Barker practices Psychiatric/Mental Health Nurse Practitioner in Oshkosh, WI.
Where does Dr. Mackenzie Barker practice?
Dr. Mackenzie Barker practices at 4030 Treffert Drive, Oshkosh, WI 54901. Office phone: 9202354910.
What is Dr. Mackenzie Barker's NPI?
Dr. Mackenzie Barker's National Provider Identifier (NPI) is 1467135814, issued by NPPES.