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

Jeanine Elaine Sienkowski, APN

Individual provider Nurse Practitioner · NPI 1194807966

Jeanine Elaine Sienkowski, APN is a Nurse Practitioner in Downers Grove, Illinois. Qualified in 2008, 18 years ago. Practices with Advocate Health and Hospitals Corporation, a 3,079-clinician group and accepts Medicare assignment. Licensed in Illinois and Indiana.

Years since qualifying
18
Licensed in
IL, IN
In the registry since
2006
Specialties on file
3
What do these letters mean?
APN — Advanced Practice Nurse
The umbrella title some states use for nurse practitioners and other advanced practice nurses.

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Practice location Address checks out

1441 Branding Ave Ste 310
Downers Grove, IL 60515-5624
Phone: (630) 829-1038
Fax: (630) 829-1040
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 277-000761 (IL)
Nurse Practitioner Taxonomy 363L00000X · Licence 71005498A (IN)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 277-000761 (IL)

Record details

NPI number1194807966
Entity typeIndividual (Type 1)
GenderFemale
Credentials APN
Sole proprietorNo
NPI enumeratedOctober 20, 2006
Last updated in NPPESMay 5, 2023
Certification dateMay 5, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Advocate Health And Hospitals Corporation — 3079 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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