Quick answers
- Which hospitals does Brian Geyer work at?
- Medicare's official clinician data lists Brian Geyer at 3 hospitals: Banner - University Medical Center Phoenix, Banner Boswell Medical Center and Dignity Health - Arizona General Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Brian Geyer see patients?
- Medicare's clinician data lists 3 practice locations, including Sun City, AZ, Phoenix, AZ and Mesa, AZ. Call before your visit to confirm the address.
- What is Brian Geyer's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Brian Geyer accept Medicare assignment?
- Yes. Medicare's clinician data says Brian Geyer 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 Brian Geyer?
- (623) 832-4000, as listed in official Medicare / NPI Registry data.
- What is Brian Geyer's NPI number?
- 1891094637. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Brian Geyer works
Medicare's Facility Affiliation Data lists Brian Geyer 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
- Banner Boswell Medical CenterSun City, AZ · Acute Care Hospital · CCN 030061
- Dignity Health - Arizona General HospitalLaveen, AZ · Acute Care Hospital · CCN 030136
Practice locations
Addresses where Brian Geyer is enrolled with Medicare (CMS data updated 2026-10-02).
- 10401 W Thunderbird BlvdSun City, AZ 85351 (623) 832‑4000
- 1111 E McDowell RdPhoenix, AZ 85006 (954) 939‑5000
- 9130 E Elliot RdMesa, AZ 85212 (888) 732‑3317
Group practices
Medicare enrollment lists Brian Geyer as a member of these groups (CMS data updated 2026-10-02).
- Tec Emergency Physicians of Arizona, LLC153 clinicians in the group
- Emergency Professional Services PC108 clinicians in the group
- Cep America- Arizona, PC93 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Sun City
Clinicians with the same Medicare primary specialty in Sun City, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Arizona College Of Medicine |
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891094637 |
| 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