Quick answers
- Which hospitals does William D. Gregorie Iv work at?
- Medicare's official clinician data lists William D. Gregorie Iv at 1 hospital: Erlanger Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William D. Gregorie Iv see patients?
- Medicare's clinician data lists 1 practice location in Chattanooga, TN. Call before your visit to confirm the address.
- What is William D. Gregorie Iv's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does William D. Gregorie Iv accept Medicare assignment?
- Yes. Medicare's clinician data says William D. Gregorie Iv 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 William D. Gregorie Iv?
- (423) 778-7000, as listed in official Medicare / NPI Registry data.
- What is William D. Gregorie Iv's NPI number?
- 1104025832. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William D. Gregorie Iv works
Medicare's Facility Affiliation Data lists William D. Gregorie Iv at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Erlanger Medical CenterChattanooga, TN · Acute Care Hospital · CCN 440104
Practice locations
Addresses where William D. Gregorie Iv is enrolled with Medicare (CMS data updated 2026-10-02).
- 975 E 3rd StChattanooga, TN 37403 (423) 778‑7000
Group practices
Medicare enrollment lists William D. Gregorie Iv as a member of this group (CMS data updated 2026-10-02).
- Tennessee River Physicians, PLLC66 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Chattanooga
Clinicians with the same Medicare primary specialty in Chattanooga, TN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of South Carolina School Of Medicine |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104025832 |
| 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