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

Jerrie J Posthumus, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1164463899

Jerrie J Posthumus, CRNA is a Certified Registered Nurse Anesthetist (CRNA) in Flossmoor, Illinois. Qualified in 1982, 44 years ago. Practices with Lake Anesthesia Associates, an 8-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
44
Licensed in
IL
In the registry since
2006
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

See every abbreviation used in this directory →

Practice location Address checks out

19624 Governors Hwy
Flossmoor, IL 60422-2077
Phone: (708) 798-5838
Fax: (708) 798-5865
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 209.002718 (IL)

Record details

NPI number1164463899
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorNo
NPI enumeratedJune 10, 2006
Last updated in NPPESDecember 27, 2011

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1982 (44 years in practice)
Group practice Lake Anesthesia Associates — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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