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

William S McWhirter

Individual provider Registered Nurse · NPI 1285345660

William S McWhirter is a Certified Registered Nurse Anesthetist (CRNA) in Chicago, Illinois. Qualified in 2022, 4 years ago. Practices with Northstar Anesthesia of Illinois, LLC, a 406-clinician group and accepts Medicare assignment. Licensed in Illinois and Missouri.

Years since qualifying
4
Licensed in
IL, MO
In the registry since
2022
Specialties on file
2

Practice location Address checks out

2900 N Lake Shore Dr
Chicago, IL 60657-5640
Phone: (773) 665-3000
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 209.026960 (IL)
Registered Nurse Taxonomy 163W00000X · Licence 2017025334 (MO)

Record details

NPI number1285345660
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedDecember 7, 2022
Last updated in NPPESApril 24, 2023
Certification dateApril 24, 2023
Mailing address1105 Highland Dr, Aurora, MO 65605-2044

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Northstar Anesthesia Of Illinois, Llc — 406 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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