Quick answers
- Which hospitals does Mallory R. Simmons work at?
- Medicare's official clinician data lists Mallory R. Simmons at 4 hospitals: Abbott Northwestern Hospital, Mount Sinai South Nassau, Northwestern Memorial Hospital and Our Lady of the Lake Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mallory R. Simmons see patients?
- Medicare's clinician data lists 9 practice locations, including Oceanside, NY, New Orleans, LA and Chicago, IL. Call before your visit to confirm the address.
- What is Mallory R. Simmons's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does Mallory R. Simmons accept Medicare assignment?
- Yes. Medicare's clinician data says Mallory R. Simmons 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 Mallory R. Simmons?
- (516) 632-3000, as listed in official Medicare / NPI Registry data.
- What is Mallory R. Simmons's NPI number?
- 1174168686. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mallory R. Simmons works
Medicare's Facility Affiliation Data lists Mallory R. Simmons at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Abbott Northwestern HospitalMinneapolis, MN · Acute Care Hospital · CCN 240057
- Mount Sinai South NassauOceanside, NY · Acute Care Hospital · CCN 330198
- Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · CCN 140281
- Our Lady of the Lake Regional Medical CenterBaton Rouge, LA · Acute Care Hospital · CCN 190064
Practice locations
Addresses where Mallory R. Simmons is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.
- 1 Healthy WayOceanside, NY 11572 (516) 632‑3000
- 2000 Canal StNew Orleans, LA 70112 (504) 702‑3000
- 251 E HuronChicago, IL 60611
- 251 E Huron StChicago, IL 60611
- 2925 Chicago AveMinneapolis, MN 55407 (651) 262‑7633
Group practices
Medicare enrollment lists Mallory R. Simmons as a member of these groups (CMS data updated 2026-10-02).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
- Allina Health System3,842 clinicians in the group
- Louisiana State University School of Medicine in New Orleans Faculty G447 clinicians in the group
- Icahn School of Medicine at Mount Sinai176 clinicians in the group
- Anesthesiology Group Associates Inc155 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), New York →
Other nurse anesthetists in Oceanside
Clinicians with the same Medicare primary specialty in Oceanside, NY — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174168686 |
| 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