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

Jennifer Hass

Individual provider Anesthesiology Physician · NPI 1477915080

Jennifer Hass practises Anesthesiology in Waukesha, Wisconsin. Graduated from Medical College of Wisconsin in 2016, 10 years ago. Practices with Anex, SC, a 37-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
10
Trained at
Medical College of Wisconsin
Licensed in
WI
In the registry since
2016
Specialties on file
2
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Practice location Address checks out

725 American Ave
Waukesha, WI 53188-5031
Phone: (262) 544-2011
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 68525-20 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 68525-20 (WI)

Record details

NPI number1477915080
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMarch 23, 2016
Last updated in NPPESMay 2, 2026
Certification dateMay 2, 2026

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2016 (10 years in practice)
Group practice Anex, S.C. — 37 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 patients146
Services billed 171 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 Anex, SC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 37 clinicians in the practice; 12 are shown here.

Other providers in Waukesha