Quick answers
- Which hospitals does Ralph L. Dagraca work at?
- Medicare's official clinician data lists Ralph L. Dagraca at 2 hospitals: Hoag Orthopedic Institute and Providence St. Joseph Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ralph L. Dagraca see patients?
- Medicare's clinician data lists 2 practice locations, including Orange, CA and Pomona, CA. Call before your visit to confirm the address.
- What is Ralph L. Dagraca's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Ralph L. Dagraca accept Medicare assignment?
- Yes. Medicare's clinician data says Ralph L. Dagraca 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 Ralph L. Dagraca?
- (714) 744-8700, as listed in official Medicare / NPI Registry data.
- What is Ralph L. Dagraca's NPI number?
- 1861430456. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ralph L. Dagraca works
Medicare's Facility Affiliation Data lists Ralph L. Dagraca at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hoag Orthopedic InstituteIrvine, CA · Acute Care Hospital · CCN 050769
- Providence St. Joseph HospitalOrange, CA · Acute Care Hospital · CCN 050069
Practice locations
Addresses where Ralph L. Dagraca is enrolled with Medicare (CMS data updated 2026-10-02).
- 1100 W Stewart DrOrange, CA 92868 (714) 744‑8700
- 1798 N Garey AvePomona, CA 91767 (909) 865‑9500
Group practices
Medicare enrollment lists Ralph L. Dagraca as a member of this group (CMS data updated 2026-10-02).
- Allied Anesthesia Medical Group Inc191 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Orange
Clinicians with the same Medicare primary specialty in Orange, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861430456 |
| 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