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

Anne L. Siwinski, APN

Individual provider Gerontology Nurse Practitioner · NPI 1669107744

Anne L. Siwinski, APN is a Nurse Practitioner in Oak Lawn, Illinois. Qualified in 2021, 5 years ago. Practices with Cardiothoracic and Vascular Surgical Associates S C, a 47-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
5
Licensed in
IL
In the registry since
2022
What do these letters mean?
APN — Advanced Practice Nurse
The umbrella title some states use for nurse practitioners and other advanced practice nurses.

See every abbreviation used in this directory →

Practice location Address checks out

4400 W 95th St Ste 308
Oak Lawn, IL 60453-2660
Phone: (708) 346-4040
Fax: (708) 346-3287
Show map & directions

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

Specialties & licences

Gerontology Nurse Practitioner (primary) Taxonomy 363LG0600X · Licence 209025906 (IL)

Record details

NPI number1669107744
Entity typeIndividual (Type 1)
GenderFemale
Credentials APN
Sole proprietorNo
NPI enumeratedJuly 21, 2022
Last updated in NPPESDecember 1, 2022
Certification dateDecember 1, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Cardiothoracic And Vascular Surgical Associates S C — 47 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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