Quick answers
- Where does James M. Callas see patients?
- Medicare's clinician data lists 2 practice locations, including Temple, TX and Austin, TX. Call before your visit to confirm the address.
- What is James M. Callas's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does James M. Callas accept Medicare assignment?
- Yes. Medicare's clinician data says James M. Callas 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 James M. Callas?
- (254) 298-2682, as listed in official Medicare / NPI Registry data.
- What is James M. Callas's NPI number?
- 1316933401. 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 James M. Callas is enrolled with Medicare (CMS data updated 2026-10-02).
- 1905 SW H K Dodgen Loop, Ascension Medical Group TempleTemple, TX 76502 (254) 298‑2682
- 3707 S 2nd St, 100 Ascension Medical Group Seton OrthopediAustin, TX 78704 (512) 246‑4488
Group practices
Medicare enrollment lists James M. Callas as a member of this group (CMS data updated 2026-10-02).
- Seton Family of Doctors792 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Temple
Clinicians with the same Medicare primary specialty in Temple, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of The South Medical Department |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316933401 |
| 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 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