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

MS. Maria E Onak, APN-CNP

Individual provider Adult Health Nurse Practitioner · NPI 1700074754

MS. Maria E Onak, APN-CNP is a Nurse Practitioner in Glenview, Illinois. Graduated from Rush Medical College of Rush University in 2007, 19 years ago. Practices with Endeavor Health Medical Group, a 3,348-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
19
Trained at
Rush Medical College of Rush University
Licensed in
IL
In the registry since
2007
Specialties on file
3
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Practice location Address checks out

2100 Pfingsten Rd
Glenview, IL 60026-1301
Phone: (847) 503-4222
Fax: (847) 503-5110
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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 209006771 (IL)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence 209006771 (IL)
Gerontology Nurse Practitioner Taxonomy 363LG0600X · Licence 209006771 (IL)

Record details

NPI number1700074754
Entity typeIndividual (Type 1)
GenderFemale
Credentials APN-CNP
Sole proprietorNo
NPI enumeratedOctober 3, 2007
Last updated in NPPESMay 5, 2026
Certification dateMay 5, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduated 2007 (19 years in practice)
Group practice Endeavor Health Medical Group — 3348 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Glenview