Quick answers
- Which hospitals does James P. Tomas work at?
- Medicare's official clinician data lists James P. Tomas at 4 hospitals: Community Hospital of San Bernardino, Redlands Community Hospital, San Gorgonio Memorial Hospital and St Bernardine Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James P. Tomas see patients?
- Medicare's clinician data lists 5 practice locations, including Banning, CA, Grand Terrace, CA and San Jacinto, CA. Call before your visit to confirm the address.
- What is James P. Tomas's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does James P. Tomas accept Medicare assignment?
- Yes. Medicare's clinician data says James P. Tomas 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 P. Tomas?
- (951) 849-4761, as listed in official Medicare / NPI Registry data.
- What is James P. Tomas's NPI number?
- 1902040819. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James P. Tomas works
Medicare's Facility Affiliation Data lists James P. Tomas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Community Hospital of San BernardinoSan Bernardino, CA · Acute Care Hospital · CCN 050089
- Redlands Community HospitalRedlands, CA · Acute Care Hospital · CCN 050272
- San Gorgonio Memorial HospitalBanning, CA · Acute Care Hospital · CCN 050054
- St Bernardine Medical CenterSan Bernardino, CA · Acute Care Hospital · CCN 050129
Practice locations
Addresses where James P. Tomas is enrolled with Medicare (CMS data updated 2026-10-02).
- 11555 /2 Potrero RdBanning, CA 92220 (951) 849‑4761
- 11980 Mount Vernon AveGrand Terrace, CA 92313 (909) 864‑1097
- 23119 Soboba Rd, Soboba Indian Health ClinicSan Jacinto, CA 92583 (951) 654‑0803
- 264 N Highland Springs Ave, Suite 3bBanning, CA 92220 (951) 769‑9776
- 401 E Highland Ave, Suite 551San Bernardino, CA 92404 (909) 882‑9150
Group practices
Medicare enrollment lists James P. Tomas as a member of these groups (CMS data updated 2026-10-02).
- Nephrology Associates Medical Group Inc64 clinicians in the group
- Riverside-San Bernardino County Indian Health Inc46 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Banning
Clinicians with the same Medicare primary specialty in Banning, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902040819 |
| 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