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

MS. Mary K Dahilig, APN, FNP-BC

Individual provider Nurse Practitioner · NPI 1225314990

MS. Mary K Dahilig, APN, FNP-BC is a Nurse Practitioner in Chicago, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2011, 15 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
15
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL
In the registry since
2011
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.
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

20 S Clark St Fl 11
Chicago, IL 60603-1882
Phone: (312) 926-3627
Fax: (312) 357-2284
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5999 New Wilke Rd Ste 200, Rolling Meadows, IL 60008-4502 — (847) 618-0800

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 277003870 (IL)
Nurse Practitioner Taxonomy 363L00000X · Licence 209009165 (IL)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 209009165 (IL)

Record details

NPI number1225314990
Entity typeIndividual (Type 1)
GenderFemale
Credentials APN , FNP-BC
Sole proprietorNo
NPI enumeratedOctober 26, 2011
Last updated in NPPESMay 6, 2025
Certification dateMay 6, 2025

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 2011 (15 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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