Doctor profile · Federal record

Dr. Brett Maag

Certified Registered Nurse Anesthetist (CMS: Certified Registered Nurse Anesthetist (CRNA)) · Dubuque, IA

  • NPI 1184020877
  • Accepts Medicare
  • MIPS 97.7 / 100 · 2023
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1515 Delhi St, Suite 300
Dubuque, IA 520016320
(563) 557-5991
fax (563) 589-4078

Credentials & registration

NPPES · NUCC
NPI registered
November 2014 — 12 yrs on file
Profile last updated
December 31, 2014
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
367500000X — NUCC code
State license (1)
Iowa #D138951

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184020877. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
56
Distinct HCPCS
3
Medicare allowed
$7,505
HCPCS Description Services Patients Avg allowed
01402 Anesthesia for procedure for total knee joint replacement 19 18 $307
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 19 18 $60
76942 Ultrasonic guidance for needle placement 18 18 $29

In context: peer comparison

Among 6 peers in Dubuque Certified Registered Nurse Anesthetist, average services per provider: 22. This provider delivers 2.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$41
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
ConvaTec INC. 2 $40.72

By nature of payment

Food and Beverage
$41

Frequently asked questions

Auto-generated from federal data
What is Dr. Brett Maag's medical specialty?
Dr. Brett Maag practices Certified Registered Nurse Anesthetist in Dubuque, IA.
Where does Dr. Brett Maag practice?
Dr. Brett Maag practices at 1515 Delhi St, Dubuque, IA 520016320. Office phone: 5635575991.
What is Dr. Brett Maag's NPI?
Dr. Brett Maag's National Provider Identifier (NPI) is 1184020877, issued by NPPES.
Does Dr. Brett Maag accept Medicare assignment?
Yes. Dr. Brett Maag accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brett Maag commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for procedure for total knee joint replacement (HCPCS 01402); Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (HCPCS 64447); Ultrasonic guidance for needle placement (HCPCS 76942). Source: CMS Medicare Physician & Other Practitioners file.