Internal Medicine in Ballwin, MO
27 active Internal Medicine providers practice in Ballwin, Missouri according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.
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| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1902884844 | Anthony Masi | Individual | Sleep Medicine (Internal Medicine) Physician | Ballwin, MO |
| 1508932195 | Binwant Singh | Individual | Internal Medicine Physician | Ballwin, MO |
| 1174591374 | Christine Sigman | Individual | Internal Medicine Physician | Ballwin, MO |
| 1174597454 | David Rosenberg | Individual | Rheumatology Physician | Ballwin, MO |
| 1831166263 | David Schlitt | Individual | Internal Medicine Physician | Ballwin, MO |
| 1306815451 | David Schoenwalder | Individual | Internal Medicine Physician | Ballwin, MO |
| 1386610376 | James Ketchum | Individual | Internal Medicine Physician | Ballwin, MO |
| 1982618856 | Mahmoud El-Sayed | Individual | Critical Care Medicine (Internal Medicine) Physician | Ballwin, MO |
| 1588631238 | Michael Schoenwalder | Individual | Internal Medicine Physician | Ballwin, MO |
| 1528081783 | Pascale Salem | Individual | Hematology & Oncology Physician | Ballwin, MO |
Frequently asked questions
How many Internal Medicine providers are in Ballwin, MO?
The latest NPPES snapshot lists 27 active Internal Medicine providers with a practice address in Ballwin, Missouri.
How do I check a Internal Medicine provider's NPI in Ballwin?
Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.
Source: CMS NPPES (public data). Snapshot 2026-07-10.