Quick answers
- Which hospitals does Peter Fonseca work at?
- Medicare's official clinician data lists Peter Fonseca at 4 hospitals: SSM Health Depaul Hospital St Louis, SSM St Clare Health Center, SSM St Joseph Health Center and SSM St Joseph Hospital West. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Peter Fonseca see patients?
- Medicare's clinician data lists 4 practice locations, including Saint Louis, MO, Bridgeton, MO and Lake St Louis, MO. Call before your visit to confirm the address.
- What is Peter Fonseca's specialty?
- Medicare lists Thoracic Surgery as the primary specialty, and also Cardiac Surgery and General Surgery.
- Does Peter Fonseca accept Medicare assignment?
- Yes. Medicare's clinician data says Peter Fonseca 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 Peter Fonseca?
- (314) 770-0991, as listed in official Medicare / NPI Registry data.
- What is Peter Fonseca's NPI number?
- 1760483101. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Peter Fonseca works
Medicare's Facility Affiliation Data lists Peter Fonseca at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- SSM Health Depaul Hospital St LouisBridgeton, MO · Acute Care Hospital · CCN 260104
- SSM St Clare Health CenterFenton, MO · Acute Care Hospital · CCN 260081
- SSM St Joseph Health CenterSaint Charles, MO · Acute Care Hospital · CCN 260005
- SSM St Joseph Hospital WestLake Saint Louis, MO · Acute Care Hospital · CCN 260200
Practice locations
Addresses where Peter Fonseca is enrolled with Medicare (CMS data updated 2026-10-02).
- 1035 Bellevue Ave, Suite 500Saint Louis, MO 63117
- 12277 De Paul DrBridgeton, MO 63044 (314) 770‑0991
- 400 Medical Plz, Suite 100Lake St Louis, MO 63367 (636) 639‑8600
- 711 Veterans Memorial PkwySaint Charles, MO 63303
Group practices
Medicare enrollment lists Peter Fonseca as a member of this group (CMS data updated 2026-10-02).
- SSM Medical Group Inc568 clinicians in the group
Specialties
- Thoracic Surgeryprimary
- Cardiac Surgeryalso
- General Surgeryalso
Other thoracic surgeons in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Saint Louis University School Of Medicine |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1760483101 |
| 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