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

Elizabeth Anne O'Brien, FNP-BC, PMHNP-BC

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1992243265

Elizabeth Anne O'Brien, FNP-BC, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner in Chicago, Illinois. Practices as a sole proprietor and works from 2 locations. Licensed in Illinois and Missouri.

Licensed in
IL, MO
In the registry since
2017
Specialties on file
2
What do these letters mean?
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.
PMHNP-BC — Psychiatric-Mental Health Nurse Practitioner, Board Certified
A board-certified psychiatric nurse practitioner.

See every abbreviation used in this directory →

Practice location Address checks out

213 W Institute Pl Ste 500
Chicago, IL 60610-8792
Phone: (630) 283-2107
Fax: (630) 559-7619
Show map & directions

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

Additional practice locations (1)

  • 1 Childrens Pl, Saint Louis, MO 63110-1002 — (314) 286-1700

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 277002791 (IL)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 2017002570 (MO)

Record details

NPI number1992243265
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-BC , PMHNP-BC
Sole proprietorYes
NPI enumeratedFebruary 7, 2017
Last updated in NPPESFebruary 26, 2026
Certification dateFebruary 26, 2026

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