Quick answers
- Which hospitals does Robert B. Arashahi work at?
- Medicare's official clinician data lists Robert B. Arashahi at 4 hospitals: Banner Baywood Medical Center, Chandler Regional Medical Center, Dignity Health Arizona General Hospital and Mercy Gilbert Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert B. Arashahi see patients?
- Medicare's clinician data lists 1 practice location in Chandler, AZ. Call before your visit to confirm the address.
- What is Robert B. Arashahi's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Hospitalist.
- Does Robert B. Arashahi accept Medicare assignment?
- Yes. Medicare's clinician data says Robert B. Arashahi 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 Robert B. Arashahi?
- (888) 488-7640, as listed in official Medicare / NPI Registry data.
- What is Robert B. Arashahi's NPI number?
- 1003995457. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert B. Arashahi works
Medicare's Facility Affiliation Data lists Robert B. Arashahi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Banner Baywood Medical CenterMesa, AZ · Acute Care Hospital · CCN 030088
- Chandler Regional Medical CenterChandler, AZ · Acute Care Hospital · CCN 030036
- Dignity Health Arizona General HospitalMesa, AZ · Acute Care Hospital · CCN 030139
- Mercy Gilbert Medical CenterGilbert, AZ · Acute Care Hospital · CCN 030119
Practice locations
Addresses where Robert B. Arashahi is enrolled with Medicare (CMS data updated 2026-10-02).
- 475 S Dobson RdChandler, AZ 85224 (888) 488‑7640
Group practices
Medicare enrollment lists Robert B. Arashahi as a member of this group (CMS data updated 2026-10-02).
- Pioneer Hospitalists, PLLC50 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
Other internal medicine doctors in Chandler
Clinicians with the same Medicare primary specialty in Chandler, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003995457 |
| 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