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ELIZABETH ANNE O'BRIEN FNP-BC, PMHNP-BC
NPI 1992243265
Nurse Practitioner - Psychiatric/Mental Health in Chicago, IL

Active since February 07, 2017PECOS Enrolled
213 W INSTITUTE PL STE 500, CHICAGO, IL 60610(630) 283-2107(630) 559-7619 Get Directions Write a Review

NPPES record last updated: February 26, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 15, 2026, Apr 25, 2024, Apr 10, 2024 and 4 more (7 updates tracked since 2017).

About Elizabeth Anne O'brien Fnp-bc, Pmhnp-bc NPPES

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

ELIZABETH ANNE O'BRIEN FNP-BC, PMHNP-BC (NPI 1992243265) is an individual psychiatric/mental health provider in Chicago, Illinois, licensed in Illinois (277002791) and active in the NPI registry since February 2017. She is enrolled in Medicare PECOS and maintains a secondary practice location in Saint Louis.

NPPES Registry Identity

NPI1992243265
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameELIZABETH ANNE O'BRIENCredential: FNP-BC, PMHNP-BC
Location Address213 W INSTITUTE PL STE 500Chicago, IL 60610-8792
Mailing Address213 W Institute Pl Ste 500Chicago, IL 60610-8792 · Fax (630) 559-7619
Phone(630) 283-2107
Fax(630) 559-7619
Sole ProprietorYes
Enumeration DateFebruary 7, 2017
Last NPPES UpdateFebruary 26, 20267 updates tracked since enumeration
NPPES CertifiedFebruary 26, 2026
✔ NPI 1992243265 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in IL · 277002791
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 2017002570 (MO)
213 W INSTITUTE PL STE 500, Chicago, IL 60610
Open in Google Maps ↗

Other Names 1

Professional Name (2)Elle O'brien Pmhnp-bc, Fnp-bc

Secondary Practice Location 1

Location 11 Childrens Pl, Dept PsychiatrySaint Louis, MO 63110-1002 · Phone (314) 286-1700 · Fax (314) 286-1777

Other Identifiers 1

Medicaid420057517MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Oscar Health, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Elizabeth Anne O'brien Fnp-bc, Pmhnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Elizabeth O'brien reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Washington University
264 mi
Multi-Specialty
660 S EUCLID AVE
Saint Louis, MO 63110
  • Reassigned Medicare billing, Missouri enrollment
  • 148 clinicians in this Medicare group
NPI 1003856592 (314) 362-5184

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60610 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

LIFEBOUND COUNSELING, PLLC
Counselor (Professional)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Cook County (773) 234-4486
STILL RIDGE COUNSELING PLLC
Counselor (Mental Health)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Cook County (708) 606-9048
LISA ANNETTE CONWAY PHD
Psychologist (Cognitive & Behavioral)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Cook County (312) 471-3910
KIERNAN WRIGHT, PLLC
Social Worker (Clinical)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Cook County (224) 335-7558
MICHEL ANTONIA CARTER
Counselor (Professional)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Cook County (773) 572-0768
OPTIMAL MENTAL HEALTH PLLC
Psychiatry & Neurology (Psychiatry)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Cook County (773) 716-3478
EMBODIED RELATIONAL HEALING PLLC
Clinic/Center (Adult Mental Health)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Cook County (734) 255-0499
BO NOORDHOFF THERAPY, PLLC
Counselor (Professional)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Cook County (708) 320-9330

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 Elizabeth O'brien's NPI number?

The NPI number for Elizabeth O'brien is 1992243265. It was assigned to this individual provider in the NPPES registry on February 7, 2017. The provider is also known as Elle O'brien Pmhnp-Bc, Fnp-Bc.

Where is Elizabeth O'brien located?

Elizabeth O'brien practices at 213 W Institute Pl Ste 500, Chicago, IL 60610. The listed phone number is (630) 283-2107.

What is Elizabeth O'brien's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Elizabeth O'brien enrolled in Medicare?

Yes. Elizabeth O'brien is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Elizabeth O'brien's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth O'brien reassigns Medicare benefits to Washington University (Saint Louis, MO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Elizabeth O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Elizabeth O'brien accept?

Health plans from Medica, Oscar Health and UnitedHealthcare list Elizabeth O'brien as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Elizabeth O'brien was last updated on February 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.