Quick answers
- Which hospitals does Gregory A. Ewald work at?
- Medicare's official clinician data lists Gregory A. Ewald at 5 hospitals: Barnes Jewish Hospital, Barnes-Jewish West County Hospital, Freeman Health System - Freeman West, Memorial Hospital and Missouri Baptist Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory A. Ewald see patients?
- Medicare's clinician data lists 7 practice locations, including Saint Louis, MO, Creve Coeur, MO and St Louis, MO. Call before your visit to confirm the address.
- What is Gregory A. Ewald's specialty?
- Medicare lists Advanced Heart Failure and Transplant Cardiology as the primary specialty, and also Cardiovascular Disease (Cardiology) and Internal Medicine.
- Does Gregory A. Ewald accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory A. Ewald 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 Gregory A. Ewald?
- (314) 747-3000, as listed in official Medicare / NPI Registry data.
- What is Gregory A. Ewald's NPI number?
- 1073557401. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory A. Ewald works
Medicare's Facility Affiliation Data lists Gregory A. Ewald at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Barnes Jewish HospitalSaint Louis, MO · Acute Care Hospital · CCN 260032
- Barnes-Jewish West County HospitalCreve Coeur, MO · Acute Care Hospital · CCN 260162
- Freeman Health System - Freeman WestJoplin, MO · Acute Care Hospital · CCN 260137
- Memorial HospitalBelleville, IL · Acute Care Hospital · CCN 140185
- Missouri Baptist Medical CenterSaint Louis, MO · Acute Care Hospital · CCN 260108
Practice locations
Addresses where Gregory A. Ewald is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1 Barnes Jew Hosp PlzSaint Louis, MO 63110 (314) 747‑3000
- 1020 N Mason RdSaint Louis, MO 63141
- 1020 N Mason Rd, Suite 210Creve Coeur, MO 63141 (314) 996‑3162
- 3015 N Ballas RdSaint Louis, MO 63131 (314) 747‑2066
- 3015 N Ballas Rd, Missouri Baptist HospitalSt Louis, MO 63131 (314) 996‑5601
Group practices
Medicare enrollment lists Gregory A. Ewald as a member of these groups (CMS data updated 2026-10-02).
- Washington University3,029 clinicians in the group
- Heart Care Institute LLC18 clinicians in the group
Specialties
- Advanced Heart Failure and Transplant Cardiologyprimary
- Cardiovascular Disease (Cardiology)also
- Internal Medicinealso
Find other Advanced Heart Failure and Transplant Cardiology doctors in Missouri →
Other heart failure and transplant cardiologists in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
- Kory J. Lavine, MD
- Justin Hartupee, MD
- Michael A. Katsnelson, MD
- Justin M. Vader, MD
- Joel D. Schilling, MD
- Amanda K. Verma, MD
- Jonathan D. Moreno, MD
- Ali Javaheri, MD
All heart failure and transplant cardiologists in Saint Louis →
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1073557401 |
| 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