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

Mary E Wassilak, WHNP-BC

Individual provider Women's Health Nurse Practitioner · NPI 1811138944

Mary E Wassilak, WHNP-BC is a Nurse Practitioner in Geneva, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2007, 19 years ago. Practices with Central Dupage Physician Group, a 1,094-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
19
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL
In the registry since
2009
Specialties on file
3

Practice location Address checks out

351 Delnor Dr Ste 204
Geneva, IL 60134-4226
Phone: (630) 208-0784
Fax: (630) 938-9190
Show map & directions

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

Additional practice locations (1)

  • 680 N Lake Shore Dr, Chicago, IL 60611-4546 — (312) 943-3300

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 209006774 (IL)
Women's Health Nurse Practitioner Taxonomy 363LW0102X · Licence 209.006774 (IL)
Obstetrics & Gynecology Nurse Practitioner Taxonomy 363LX0001X · Licence 209006774 (IL)

Record details

NPI number1811138944
Entity typeIndividual (Type 1)
GenderFemale
Credentials WHNP-BC
Sole proprietorNo
NPI enumeratedMarch 19, 2009
Last updated in NPPESOctober 6, 2023
Certification dateOctober 6, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2007 (19 years in practice)
Group practice Central Dupage Physician Group — 1094 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount