Quick answers
- Which hospitals does Steven Montague work at?
- Medicare's official clinician data lists Steven Montague at 1 hospital: Mercy Hospital South. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Steven Montague see patients?
- Medicare's clinician data lists 10 practice locations, including Saint Louis, MO, Santee, CA and San Diego, CA. Call before your visit to confirm the address.
- What is Steven Montague's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Steven Montague accept Medicare assignment?
- Yes. Medicare's clinician data says Steven Montague 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 Steven Montague?
- (314) 525-4440, as listed in official Medicare / NPI Registry data.
- What is Steven Montague's NPI number?
- 1245878255. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Steven Montague works
Medicare's Facility Affiliation Data lists Steven Montague at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital SouthSaint Louis, MO · Acute Care Hospital · CCN 260077
Practice locations
Addresses where Steven Montague is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 10; the Medicare profile lists all.
- 10050 Kennerly Rd, Suite 25200Saint Louis, MO 63128 (314) 525‑4440
- 10538 Mission Gorge Rd, Suite 100Santee, CA 92071 (619) 456‑0033
- 1740 Rosecrans StSan Diego, CA 92106 (619) 790‑7800
- 2975 Sycamore DrSimi Valley, CA 93065 (805) 955‑6000
- 5671 Balboa AveSan Diego, CA 92111 (858) 800‑2880
Group practices
Medicare enrollment lists Steven Montague as a member of these groups (CMS data updated 2026-10-02).
- Mercy Clinic Surgical Specialists LLC182 clinicians in the group
- Somagen Healthcare Inc53 clinicians in the group
- Synergy Observation Specialists PC38 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245878255 |
| 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