Quick answers
- Which hospitals does Mark Anton A. Arganda work at?
- Medicare's official clinician data lists Mark Anton A. Arganda at 2 hospitals: Kaiser Foundation Hospital-Moreno Valley and Kaiser Foundation Hospital, Riverside. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Anton A. Arganda see patients?
- Medicare's clinician data lists 3 practice locations, including Riverside, CA and Moreno Valley, CA. Call before your visit to confirm the address.
- What is Mark Anton A. Arganda's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Mark Anton A. Arganda accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Anton A. Arganda 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 Mark Anton A. Arganda?
- (951) 353-2000, as listed in official Medicare / NPI Registry data.
- What is Mark Anton A. Arganda's NPI number?
- 1144895954. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark Anton A. Arganda works
Medicare's Facility Affiliation Data lists Mark Anton A. Arganda at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation Hospital-Moreno ValleyMoreno Valley, CA · Acute Care Hospital · CCN 050765
- Kaiser Foundation Hospital, RiversideRiverside, CA · Acute Care Hospital · CCN 050686
Practice locations
Addresses where Mark Anton A. Arganda is enrolled with Medicare (CMS data updated 2026-10-02).
- 10800 Magnolia AveRiverside, CA 92505 (951) 353‑2000
- 27300 Iris AveMoreno Valley, CA 92555 (951) 243‑0811
- 27350 Iris AveMoreno Valley, CA 92555 (866) 984‑7483
Group practices
Medicare enrollment lists Mark Anton A. Arganda as a member of this group (CMS data updated 2026-10-02).
- Southern California Permanente Medical Group11,293 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Riverside
Clinicians with the same Medicare primary specialty in Riverside, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144895954 |
| 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