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

Julia Ruth Hallack, APRN, CNP

Individual provider Critical Care Medicine Registered Nurse · NPI 1861218190

Julia Ruth Hallack, APRN, CNP is a Nurse Practitioner in Chicago, Illinois. Qualified in 2025, 1 year ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group and accepts Medicare assignment. Licensed in Illinois and Ohio.

Years since qualifying
1
Licensed in
IL, OH
In the registry since
2024
Specialties on file
4
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
CNP — Certified Nurse Practitioner
A certified nurse practitioner.

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Practice location Address checks out

675 N Saint Clair St Ste 19-100
Chicago, IL 60611-5969
Phone: (312) 664-3278
Fax: (312) 695-5774
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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 209032172 (IL)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence 041.541613 (IL)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence RN.490237 (OH)
Acute Care Nurse Practitioner Taxonomy 363LA2100X · Licence 209.032172 (IL)

Record details

NPI number1861218190
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN , CNP
Sole proprietorYes
NPI enumeratedDecember 3, 2024
Last updated in NPPESJune 24, 2025
Certification dateJune 24, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2025 (1 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

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