Quick answers
- Which hospitals does Anthony T. Sonn work at?
- Medicare's official clinician data lists Anthony T. Sonn at 5 hospitals: Hermann Area District Hospital, Mercy Hospital Lincoln, Mercy Hospital South, Mercy Hospital St Louis and Mercy Hospital Washington. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Anthony T. Sonn see patients?
- Medicare's clinician data lists 3 practice locations, including Saint Louis, MO and Saint Charles, MO. Call before your visit to confirm the address.
- What is Anthony T. Sonn's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Interventional Cardiology.
- Does Anthony T. Sonn accept Medicare assignment?
- Yes. Medicare's clinician data says Anthony T. Sonn 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.
- Does Anthony T. Sonn offer telehealth?
- Medicare's clinician data says Anthony T. Sonn offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Anthony T. Sonn?
- (636) 447-1827, as listed in official Medicare / NPI Registry data.
- What is Anthony T. Sonn's NPI number?
- 1265489561. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Anthony T. Sonn works
Medicare's Facility Affiliation Data lists Anthony T. Sonn at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hermann Area District HospitalHermann, MO · Critical Access Hospital · CCN 261314
- Mercy Hospital LincolnTroy, MO · Critical Access Hospital · CCN 261319
- Mercy Hospital SouthSaint Louis, MO · Acute Care Hospital · CCN 260077
- Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · CCN 260020
- Mercy Hospital WashingtonWashington, MO · Acute Care Hospital · CCN 260052
Practice locations
Addresses where Anthony T. Sonn is enrolled with Medicare (CMS data updated 2026-10-02).
- 10012 Kennerly RdSaint Louis, MO 63128
- 1820 Zumbehl Rd, Suite 120Saint Charles, MO 63303 (636) 447‑1827
- 625 S New Ballas RdSaint Louis, MO 63141
Group practices
Medicare enrollment lists Anthony T. Sonn as a member of this group (CMS data updated 2026-10-02).
- Mercy Clinic Heart and Vascular LLC113 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Missouri →
Other cardiologists in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Missouri, Kansas City, School Of Medicine |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1265489561 |
| 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