Quick answers
- Which hospitals does Mahmoud Ballout work at?
- Medicare's official clinician data lists Mahmoud Ballout at 5 hospitals: Barnes Jewish Hospital, Mercy Hospital Lebanon, Phelps County Regional Medical Center, Texas County Memorial Hospital and University of Missouri Health Care. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mahmoud Ballout see patients?
- Medicare's clinician data lists 1 practice location in Rolla, MO. Call before your visit to confirm the address.
- What is Mahmoud Ballout's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Hospitalist.
- Does Mahmoud Ballout accept Medicare assignment?
- Yes. Medicare's clinician data says Mahmoud Ballout 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 Mahmoud Ballout?
- (573) 364-9000, as listed in official Medicare / NPI Registry data.
- What is Mahmoud Ballout's NPI number?
- 1891427472. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mahmoud Ballout works
Medicare's Facility Affiliation Data lists Mahmoud Ballout 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
- Mercy Hospital LebanonLebanon, MO · Acute Care Hospital · CCN 260059
- Phelps County Regional Medical CenterRolla, MO · Acute Care Hospital · CCN 260017
- Texas County Memorial HospitalHouston, MO · Acute Care Hospital · CCN 260024
- University of Missouri Health CareColumbia, MO · Acute Care Hospital · CCN 260141
Practice locations
Addresses where Mahmoud Ballout is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 W 10th StRolla, MO 65401 (573) 364‑9000
Group practices
Medicare enrollment lists Mahmoud Ballout as a member of these groups (CMS data updated 2026-10-02).
- PCRMC Medical Group Inc120 clinicians in the group
- Phelps County Regional Medical Center116 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
Other internal medicine doctors in Rolla
Clinicians with the same Medicare primary specialty in Rolla, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891427472 |
| 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