Quick answers
- Does Joshua T. Thornhill Iv accept Medicare assignment?
- Yes. Medicare's clinician data says Joshua T. Thornhill Iv accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Joshua T. Thornhill Iv's NPI number?
- 1013977974. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Joshua T. Thornhill Iv is enrolled with Medicare (CMS data updated October 2, 2026).
- 2 Medical Park Rd, Suite 506Columbia, SC 29203 (803) 540‑1000
Group practices
Medicare enrollment lists Joshua T. Thornhill Iv as a member of this group (CMS data updated October 2, 2026).
- Prisma Health Medical Group-Midlands1,068 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Columbia
Clinicians with the same Medicare primary specialty in Columbia, SC — not a recommendation.
Other clinicians in Prisma Health Medical Group-Midlands
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Eastern Virginia Medical School |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013977974 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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