Quick answers
- Which hospitals does Robert Ruelaz work at?
- Medicare's official clinician data lists Robert Ruelaz at 5 hospitals: Community Hospital of Huntington Park, Flagstaff Medical Center, Garfield Medical Center, Hollywood Presbyterian Medical Center and MercyOne North Iowa Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert Ruelaz see patients?
- Medicare's clinician data lists 11 practice locations, including Mason City, IA, Norwalk, CA and Flagstaff, AZ. Call before your visit to confirm the address.
- What is Robert Ruelaz's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Robert Ruelaz accept Medicare assignment?
- Yes. Medicare's clinician data says Robert Ruelaz 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.
- Does Robert Ruelaz offer telehealth?
- Medicare's clinician data says Robert Ruelaz offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Robert Ruelaz?
- (877) 578-3529, as listed in official Medicare / NPI Registry data.
- What is Robert Ruelaz's NPI number?
- 1881749026. 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 Ruelaz works
Medicare's Facility Affiliation Data lists Robert Ruelaz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Community Hospital of Huntington ParkHuntington Park, CA · Acute Care Hospital · CCN 050091
- Flagstaff Medical CenterFlagstaff, AZ · Acute Care Hospital · CCN 030023
- Garfield Medical CenterMonterey Park, CA · Acute Care Hospital · CCN 050737
- Hollywood Presbyterian Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050063
- MercyOne North Iowa Medical CenterMason City, IA · Acute Care Hospital · CCN 160064
Practice locations
Addresses where Robert Ruelaz is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 11; the Medicare profile lists all.
- 1000 4th St SWMason City, IA 50401
- 11865 Firestone BlvdNorwalk, CA 90650 (877) 578‑3529
- 1200 N Beaver StFlagstaff, AZ 86001 (928) 779‑3366
- 1200 N Beaver St, Attn. Managed Care ContractingFlagstaff, AZ 86001
- 1215 N Beaver St, Suite 203Flagstaff, AZ 86001 (928) 773‑2249
Group practices
Medicare enrollment lists Robert Ruelaz as a member of these groups (CMS data updated 2026-10-02).
- Northern Arizona Healthcare Corporation385 clinicians in the group
- North Iowa Mercy Clinics302 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Iowa →
Other cardiologists in Mason City
Clinicians with the same Medicare primary specialty in Mason City, IA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1881749026 |
| 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