Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Karen G. Loniewski, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1417917360

Karen G. Loniewski, CRNA is a Certified Registered Nurse Anesthetist (CRNA) in Ann Arbor, Michigan. Qualified in 1991, 35 years ago. Practices with Regents of the University of Michigan, a 3,271-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
35
Licensed in
MI
In the registry since
2006
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

1500 E Medical Center Dr 1H247 University Hospital
Ann Arbor, MI 48109-5048
Phone: (734) 936-4280
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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 4704159014 (MI)

Record details

NPI number1417917360
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedMarch 24, 2006
Last updated in NPPESJanuary 11, 2022
Certification dateJanuary 11, 2022

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Regents Of The University Of Michigan — 3271 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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