Quick answers
- Which hospitals does Patricia O'Connell work at?
- Medicare's official clinician data lists Patricia O'Connell at 2 hospitals: CHI St Alexius Health Williston and Northwestern Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Patricia O'Connell see patients?
- Medicare's clinician data lists 1 practice location in Chicago, IL. Call before your visit to confirm the address.
- What is Patricia O'Connell's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Patricia O'Connell accept Medicare assignment?
- Yes. Medicare's clinician data says Patricia O'Connell accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Patricia O'Connell?
- (312) 926-5924, as listed in official Medicare / NPI Registry data.
- What is Patricia O'Connell's NPI number?
- 1851895668. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Patricia O'Connell works
Medicare's Facility Affiliation Data lists Patricia O'Connell at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- CHI St Alexius Health WillistonWilliston, ND · Critical Access Hospital · CCN 351334
- Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · CCN 140281
Practice locations
Addresses where Patricia O'Connell is enrolled with Medicare (CMS data updated 2026-10-02).
- 251 E Huron StChicago, IL 60611 (312) 926‑5924
Group practices
Medicare enrollment lists Patricia O'Connell as a member of this group (CMS data updated 2026-10-02).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851895668 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians