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

Individual provider Certified Registered Nurse Anesthetist · NPI 1396024931

Carri Ann Grennan, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Chicago, Illinois. Qualified in 2005, 21 years ago. Practices with Pacific Valley Medical Group, a 104-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
21
Licensed in
IL
In the registry since
2011
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

5145 N California Ave
Chicago, IL 60625-3661 Not confirmed with CMS for 10 years — call before visiting
Phone: (773) 878-8200
Fax: (773) 293-8804
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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 209.008958 (IL)

Record details

NPI number1396024931
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedAugust 14, 2011
Last updated in NPPESJuly 15, 2016

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Pacific Valley Medical Group — 104 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Colleagues at Pacific Valley Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 104 clinicians in the practice; 12 are shown here.

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