Quick answers
- Which hospitals does Bryan Contreras work at?
- Medicare's official clinician data lists Bryan Contreras at 2 hospitals: Northwest Medical Center and Oro Valley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Bryan Contreras see patients?
- Medicare's clinician data lists 3 practice locations, including Tucson, AZ. Call before your visit to confirm the address.
- What is Bryan Contreras's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Bryan Contreras accept Medicare assignment?
- Yes. Medicare's clinician data says Bryan Contreras 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 Bryan Contreras?
- (520) 742-4139, as listed in official Medicare / NPI Registry data.
- What is Bryan Contreras's NPI number?
- 1578549457. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Bryan Contreras works
Medicare's Facility Affiliation Data lists Bryan Contreras at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northwest Medical CenterTucson, AZ · Acute Care Hospital · CCN 030085
- Oro Valley HospitalOro Valley, AZ · Acute Care Hospital · CCN 030114
Practice locations
Addresses where Bryan Contreras is enrolled with Medicare (CMS data updated 2026-10-02).
- 1701 W Saint Marys Rd, Suite 125Tucson, AZ 85745 (520) 742‑4139
- 7566 N La Cholla Blvd, Suite ATucson, AZ 85741 (520) 742‑4139
- 7566 N La Cholla Blvd ATucson, AZ 85741
Group practices
Medicare enrollment lists Bryan Contreras as a member of this group (CMS data updated 2026-10-02).
- Arizona Gastroenterology Ltd8 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Tucson
Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578549457 |
| 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