Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

HALEY BRIELLE ZAK
NPI 1881507879
Physician Assistant in Downers Grove, IL

Active since September 23, 2026
555 31ST ST, DOWNERS GROVE, IL 60515(630) 971-6080 Get Directions Write a Review

NPPES record added: September 23, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About Haley Brielle Zak NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HALEY BRIELLE ZAK (NPI 1881507879) is an individual physician assistant in Downers Grove, Illinois and active in the NPI registry since September 2026.

NPPES Registry Identity

NPI1881507879
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameHALEY BRIELLE ZAK
Location Address555 31ST STDowners Grove, IL 60515-1235
Mailing Address555 31st StDowners Grove, IL 60515-1235
Sole ProprietorNo
Enumeration DateSeptember 23, 2026
NPPES CertifiedSeptember 23, 2026
✔ NPI 1881507879 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
555 31ST ST, Downers Grove, IL 60515

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Student in an Organized Health Care Education/Training Program
555 31ST ST
DOWNERS GROVE, IL 60515
Student in an Organized Health Care Education/Training Program
555 31ST ST
DOWNERS GROVE, IL 60515
Student in an Organized Health Care Education/Training Program
555 31ST ST
DOWNERS GROVE, IL 60515
Physician Assistant
555 31ST ST
DOWNERS GROVE, IL 60515
Student in an Organized Health Care Education/Training Program
555 31ST ST
DOWNERS GROVE, IL 60515
Student in an Organized Health Care Education/Training Program
555 31ST ST
DOWNERS GROVE, IL 60515
Student in an Organized Health Care Education/Training Program
555 31ST ST
DOWNERS GROVE, IL 60515
Pharmacist
555 31ST ST, AH 355
DOWNERS GROVE, IL 60515

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Haley Zak's NPI number?

The NPI number for Haley Zak is 1881507879. It was assigned to this individual provider in the NPPES registry on September 23, 2026.

Where is Haley Zak located?

Haley Zak practices at 555 31st St, Downers Grove, IL 60515. The listed phone number is (630) 971-6080.

What is Haley Zak's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

When was this NPI record last updated?

The NPPES record for Haley Zak was last updated on September 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.