Quick answers
- Which hospitals does James Esther work at?
- Medicare's official clinician data lists James Esther at 3 hospitals: Mercy Hospital St Louis, Missouri Baptist Medical Center and St Lukes Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James Esther see patients?
- Medicare's clinician data lists 2 practice locations, including Chesterfield, MO and Saint Louis, MO. Call before your visit to confirm the address.
- What is James Esther's specialty?
- Medicare lists Rheumatology as the primary specialty, and also Internal Medicine.
- Does James Esther accept Medicare assignment?
- Yes. Medicare's clinician data says James Esther 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 James Esther?
- (314) 205-6444, as listed in official Medicare / NPI Registry data.
- What is James Esther's NPI number?
- 1609838309. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James Esther works
Medicare's Facility Affiliation Data lists James Esther at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · CCN 260020
- Missouri Baptist Medical CenterSaint Louis, MO · Acute Care Hospital · CCN 260108
- St Lukes HospitalChesterfield, MO · Acute Care Hospital · CCN 260179
Practice locations
Addresses where James Esther is enrolled with Medicare (CMS data updated 2026-10-02).
- 226 S Woods Mill Rd, Suite 43wChesterfield, MO 63017 (314) 205‑6444
- 7212 Balson AveSaint Louis, MO 63130
Group practices
Medicare enrollment lists James Esther as a member of these groups (CMS data updated 2026-10-02).
- Aging Well Health Care, LLC238 clinicians in the group
- Chesterfield Internal Medicine and Rheumatology, LLC8 clinicians in the group
Specialties
- Rheumatologyprimary
- Internal Medicinealso
Other rheumatologists in Chesterfield
Clinicians with the same Medicare primary specialty in Chesterfield, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 1976 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609838309 |
| 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