Doctor profile · Federal record

Dr. Mark O'Brien

Certified Registered Nurse Anesthetist (CMS: Certified Registered Nurse Anesthetist (CRNA)) · Registered Nurse · Plymouth, MN

  • NPI 1124796545
  • Accepts Medicare
  • 3 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
11505 39Th Ave N
Plymouth, MN 554411310
(612) 751-7531

Credentials & registration

NPPES · NUCC
NPI registered
August 2021 — 5 yrs on file
Profile last updated
December 12, 2023
Year of graduation
2023 — 3 yrs since
Specialty taxonomy
367500000X — NUCC code
State license (1)
Minnesota #238058-2

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124796545. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$50
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Chiesi USA, Inc. 1 $50.40

By nature of payment

Education
$50

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark O'Brien's medical specialty?
Dr. Mark O'Brien practices Certified Registered Nurse Anesthetist in Plymouth, MN.
Where does Dr. Mark O'Brien practice?
Dr. Mark O'Brien practices at 11505 39Th Ave N, Plymouth, MN 554411310. Office phone: 6127517531.
What is Dr. Mark O'Brien's NPI?
Dr. Mark O'Brien's National Provider Identifier (NPI) is 1124796545, issued by NPPES.
Does Dr. Mark O'Brien accept Medicare assignment?
Yes. Dr. Mark O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.