Quick answers
- Which hospitals does Alva Dillon work at?
- Medicare's official clinician data lists Alva Dillon at 4 hospitals: Memorial Hospital at Gulfport, Memorial Hospital Biloxi, Singing River Gulfport and Singing River Health System. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alva Dillon see patients?
- Medicare's clinician data lists 1 practice location in Gulfport, MS. Call before your visit to confirm the address.
- What is Alva Dillon's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Alva Dillon accept Medicare assignment?
- Yes. Medicare's clinician data says Alva Dillon 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 Alva Dillon?
- (228) 863-8836, as listed in official Medicare / NPI Registry data.
- What is Alva Dillon's NPI number?
- 1699775171. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alva Dillon works
Medicare's Facility Affiliation Data lists Alva Dillon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Memorial Hospital at GulfportGulfport, MS · Acute Care Hospital · CCN 250019
- Memorial Hospital BiloxiBiloxi, MS · Acute Care Hospital · CCN 250007
- Singing River GulfportGulfport, MS · Acute Care Hospital · CCN 250123
- Singing River Health SystemPascagoula, MS · Acute Care Hospital · CCN 250040
Practice locations
Addresses where Alva Dillon is enrolled with Medicare (CMS data updated 2026-10-02).
- 4500 W Railroad StGulfport, MS 39501 (228) 863‑8836
Group practices
Medicare enrollment lists Alva Dillon as a member of this group (CMS data updated 2026-10-02).
- Memorial Hospital at Gulfport474 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Gulfport
Clinicians with the same Medicare primary specialty in Gulfport, MS — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1974 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699775171 |
| 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