Quick answers
- Which hospitals does Mary A. Shields work at?
- Medicare's official clinician data lists Mary A. Shields at 3 hospitals: Alexian Brothers Medical Center 1, Northwest Community Hospital 1 and St Alexius Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mary A. Shields see patients?
- Medicare's clinician data lists 3 practice locations, including Elk Grove Village, IL, Bartlett, IL and Schaumburg, IL. Call before your visit to confirm the address.
- What is Mary A. Shields's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mary A. Shields accept Medicare assignment?
- Yes. Medicare's clinician data says Mary A. Shields 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 Mary A. Shields?
- (847) 285-4200, as listed in official Medicare / NPI Registry data.
- What is Mary A. Shields's NPI number?
- 1922074103. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mary A. Shields works
Medicare's Facility Affiliation Data lists Mary A. Shields at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alexian Brothers Medical Center 1Elk Grove Village, IL · Acute Care Hospital · CCN 140258
- Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · CCN 140252
- St Alexius Medical CenterHoffman Estates, IL · Acute Care Hospital · CCN 140290
Practice locations
Addresses where Mary A. Shields is enrolled with Medicare (CMS data updated 2026-10-02).
- 120 E Higgins RdElk Grove Village, IL 60007 (847) 285‑4200
- 864 W Stearns RdBartlett, IL 60103 (847) 285‑4200
- 929 W Higgins RdSchaumburg, IL 60195 (847) 285‑4200
Group practices
Medicare enrollment lists Mary A. Shields as a member of these groups (CMS data updated 2026-10-02).
- Orthomidwest, PLLC547 clinicians in the group
- Barrington Orthopedic Specialists Ltd58 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Elk Grove Village
Clinicians with the same Medicare primary specialty in Elk Grove Village, IL — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2001 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1922074103 |
| 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