Quick answers
- Which hospitals does Jonathan B. Buck work at?
- Medicare's official clinician data lists Jonathan B. Buck at 5 hospitals: Good Samaritan Regional Hlth Center, SSM Health Depaul Hospital St Louis, SSM Health Saint Louis University Hospital, SSM St Joseph Health Center and St Joseph's Medical Center of Stockton. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan B. Buck see patients?
- Medicare's clinician data lists 3 practice locations, including Bridgeton, MO, Stockton, CA and Richmond Heights, MO. Call before your visit to confirm the address.
- What is Jonathan B. Buck's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Hospitalist.
- Does Jonathan B. Buck accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan B. Buck 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 Jonathan B. Buck?
- (314) 344-6000, as listed in official Medicare / NPI Registry data.
- What is Jonathan B. Buck's NPI number?
- 1861847790. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan B. Buck works
Medicare's Facility Affiliation Data lists Jonathan B. Buck at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Good Samaritan Regional Hlth CenterMount Vernon, IL · Acute Care Hospital · CCN 140046
- SSM Health Depaul Hospital St LouisBridgeton, MO · Acute Care Hospital · CCN 260104
- SSM Health Saint Louis University HospitalSaint Louis, MO · Acute Care Hospital · CCN 260105
- SSM St Joseph Health CenterSaint Charles, MO · Acute Care Hospital · CCN 260005
- St Joseph's Medical Center of StocktonStockton, CA · Acute Care Hospital · CCN 050084
Practice locations
Addresses where Jonathan B. Buck is enrolled with Medicare (CMS data updated 2026-10-02).
- 12303 De Paul DrBridgeton, MO 63044 (314) 344‑6000
- 1800 N California StStockton, CA 95204 (209) 943‑2000
- 6420 Clayton RdRichmond Heights, MO 63117 (314) 768‑8000
Group practices
Medicare enrollment lists Jonathan B. Buck as a member of these groups (CMS data updated 2026-10-02).
- Inpatient Specialists of California PC385 clinicians in the group
- Sound Physicians of Illinois LLC193 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
Other internal medicine doctors in Bridgeton
Clinicians with the same Medicare primary specialty in Bridgeton, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861847790 |
| 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