Quick answers
- Which hospitals does David P. Ruby work at?
- Medicare's official clinician data lists David P. Ruby at 1 hospital: Dignity Health - Arizona General Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David P. Ruby see patients?
- Medicare's clinician data lists 1 practice location in Glendale, AZ. Call before your visit to confirm the address.
- What is David P. Ruby's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does David P. Ruby accept Medicare assignment?
- Yes. Medicare's clinician data says David P. Ruby 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 David P. Ruby?
- (888) 732-3317, as listed in official Medicare / NPI Registry data.
- What is David P. Ruby's NPI number?
- 1912921917. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David P. Ruby works
Medicare's Facility Affiliation Data lists David P. Ruby at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Dignity Health - Arizona General HospitalLaveen, AZ · Acute Care Hospital · CCN 030136
Practice locations
Addresses where David P. Ruby is enrolled with Medicare (CMS data updated 2026-10-02).
- 5171 W Olive AveGlendale, AZ 85302 (888) 732‑3317
Group practices
Medicare enrollment lists David P. Ruby as a member of this group (CMS data updated 2026-10-02).
- Tec Emergency Physicians of Arizona, LLC153 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Glendale
Clinicians with the same Medicare primary specialty in Glendale, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1912921917 |
| 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