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

Aaron Zondlo

Individual provider Certified Registered Nurse Anesthetist · NPI 1023416559

Aaron Zondlo is registered under Certified Registered Nurse Anesthetist (CRNA) in Wausau, Wisconsin. Qualified in 2014, 12 years ago. Practices with Central Wisconsin Anesthesiology, a 57-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

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

425 Pine Ridge Blvd Ste 211
Wausau, WI 54401-4123
Phone: (715) 845-5505
Fax: (715) 848-2884
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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 161835-30 (WI)

Record details

NPI number1023416559
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedDecember 16, 2014
Last updated in NPPESJanuary 25, 2021
Certification dateJanuary 25, 2021

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 Central Wisconsin Anesthesiology — 57 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients90
Services billed 92 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 Central Wisconsin Anesthesiology

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 57 clinicians in the practice; 12 are shown here.

Other providers in Wausau