Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mary Ann Teister, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1801920624

Mary Ann Teister, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Evanston, Illinois. Qualified in 1984, 42 years ago. Practices with Endeavor Health Medical Group, a 3,348-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
42
Licensed in
IL
In the registry since
2007
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

2650 Ridge Ave Anesthesiology Rm 3905
Evanston, IL 60201-1718 Not confirmed with CMS for 19 years — call before visiting
Phone: (847) 570-2760
Fax: (847) 570-2921
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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 (IL)

Record details

NPI number1801920624
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedMarch 15, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1984 (42 years in practice)
Group practice Endeavor Health Medical Group — 3348 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 patients117
Services billed 117 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 Endeavor Health Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3348 clinicians in the practice; 12 are shown here.

Other providers in Evanston