Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Brett Maag

Individual provider Certified Registered Nurse Anesthetist · NPI 1184020877

Brett Maag is registered under Certified Registered Nurse Anesthetist (CRNA) in Dubuque, Iowa. Qualified in 2014, 12 years ago. Practices with Southwest Health Center Inc, a 113-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
12
Licensed in
IA
In the registry since
2014
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Practice location Address checks out

1515 Delhi St Ste 300
Dubuque, IA 52001-6320 Not confirmed with CMS for 11 years — call before visiting
Phone: (563) 557-5991
Fax: (563) 589-4078
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence D138951 (IA)

Record details

NPI number1184020877
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedNovember 7, 2014
Last updated in NPPESDecember 31, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Southwest Health Center Inc — 113 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients24
Services billed 43 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Southwest Health Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 113 clinicians in the practice; 12 are shown here.

Other providers in Dubuque