Quick answers
- Which hospitals does Robert Massingill work at?
- Medicare's official clinician data lists Robert Massingill at 2 hospitals: CHRISTUS Shreveport-Bossier Health System and Willis Knighton Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert Massingill see patients?
- Medicare's clinician data lists 1 practice location in Bossier City, LA. Call before your visit to confirm the address.
- What is Robert Massingill's specialty?
- Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
- Does Robert Massingill accept Medicare assignment?
- Yes. Medicare's clinician data says Robert Massingill 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 Robert Massingill?
- (318) 681-1600, as listed in official Medicare / NPI Registry data.
- What is Robert Massingill's NPI number?
- 1770587461. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert Massingill works
Medicare's Facility Affiliation Data lists Robert Massingill at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- CHRISTUS Shreveport-Bossier Health SystemShreveport, LA · Acute Care Hospital · CCN 190041
- Willis Knighton Medical CenterShreveport, LA · Acute Care Hospital · CCN 190111
Practice locations
Addresses where Robert Massingill is enrolled with Medicare (CMS data updated 2026-10-02).
- 1701 Jimmie Davis HwyBossier City, LA 71112 (318) 681‑1600
Group practices
Medicare enrollment lists Robert Massingill as a member of this group (CMS data updated 2026-10-02).
- CHRISTUS Trinity Clinic Texas1,540 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
Other hematologist-oncologists in Louisiana
Clinicians with the same Medicare primary specialty in Louisiana — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Louisiana State University School Of Medicine In Shreveport |
| Graduation year | 1969 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770587461 |
| 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