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

Mrs. Catherine Aler

Individual provider Nurse Practitioner · NPI 1134584964

Mrs. Catherine Aler is a Nurse Practitioner in Naperville, Illinois. Qualified in 2004, 22 years ago. Practices with Endeavor Health Medical Group, a 3,348-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
22
Licensed in
IL
In the registry since
2015

Practice location Address checks out

801 S Washington St
Naperville, IL 60540-7430
Phone: (630) 527-3000
Show map & directions

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

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 209.005434 (IL)

Record details

NPI number1134584964
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedDecember 21, 2015
Last updated in NPPESDecember 21, 2015
Mailing address12550 Larkspur Ln, Plainfield, IL 60585-5545

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Endeavor Health Medical Group — 3348 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Naperville