Quick answers
- Which hospitals does Guillermo Gonzalez Osete work at?
- Medicare's official clinician data lists Guillermo Gonzalez Osete at 1 hospital: Holy Cross Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Guillermo Gonzalez Osete see patients?
- Medicare's clinician data lists 1 practice location in Tucson, AZ. Call before your visit to confirm the address.
- What is Guillermo Gonzalez Osete's specialty?
- Medicare lists Medical Oncology as the primary specialty, and also Hematology/Oncology.
- Does Guillermo Gonzalez Osete accept Medicare assignment?
- Yes. Medicare's clinician data says Guillermo Gonzalez Osete 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 Guillermo Gonzalez Osete?
- (520) 689-7022, as listed in official Medicare / NPI Registry data.
- What is Guillermo Gonzalez Osete's NPI number?
- 1740249986. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Guillermo Gonzalez Osete works
Medicare's Facility Affiliation Data lists Guillermo Gonzalez Osete at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Holy Cross HospitalNogales, AZ · Critical Access Hospital · CCN 031313
Practice locations
Addresses where Guillermo Gonzalez Osete is enrolled with Medicare (CMS data updated 2026-10-02).
- 3945 E Paradise Falls Dr, Suite 105Tucson, AZ 85712 (520) 689‑7022
Group practices
Medicare enrollment lists Guillermo Gonzalez Osete as a member of this group (CMS data updated 2026-10-02).
- Arizona Blood and Cancer Specialists, PLLC15 clinicians in the group
Specialties
- Medical Oncologyprimary
- Hematology/Oncologyalso
Other oncologists in Tucson
Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1976 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740249986 |
| 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