Quick answers
- Which hospitals does Gregory M. Giancana work at?
- Medicare's official clinician data lists Gregory M. Giancana at 1 hospital: Banner - University Medical Center Phoenix. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory M. Giancana see patients?
- Medicare's clinician data lists 2 practice locations, including Phoenix, AZ. Call before your visit to confirm the address.
- What is Gregory M. Giancana's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Gregory M. Giancana accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory M. Giancana 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 Gregory M. Giancana?
- (602) 839-2000, as listed in official Medicare / NPI Registry data.
- What is Gregory M. Giancana's NPI number?
- 1093456071. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory M. Giancana works
Medicare's Facility Affiliation Data lists Gregory M. Giancana at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Banner - University Medical Center PhoenixPhoenix, AZ · Acute Care Hospital · CCN 030002
Practice locations
Addresses where Gregory M. Giancana is enrolled with Medicare (CMS data updated 2026-10-02).
- 1111 E McDowell RdPhoenix, AZ 85006 (602) 839‑2000
- 1300 N 12th St, Suite 508Phoenix, AZ 85006 (602) 839‑3927
Group practices
Medicare enrollment lists Gregory M. Giancana as a member of these groups (CMS data updated 2026-10-02).
- Banner - University Hospital Based Physicians LLC339 clinicians in the group
- Banner - University Primary Care Physicians LLC45 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Phoenix
Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093456071 |
| 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