Quick answers
- Which hospitals does Marius C. Viseroi work at?
- Medicare's official clinician data lists Marius C. Viseroi at 2 hospitals: El Camino Health and Tri-City Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marius C. Viseroi see patients?
- Medicare's clinician data lists 5 practice locations, including Long Beach, CA, Sacramento, CA and Oceanside, CA. Call before your visit to confirm the address.
- What is Marius C. Viseroi's specialty?
- Medicare lists Critical Care (Intensivists) as the primary specialty, and also Internal Medicine and Pulmonary Disease.
- Does Marius C. Viseroi accept Medicare assignment?
- Yes. Medicare's clinician data says Marius C. Viseroi 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 Marius C. Viseroi?
- (562) 491-9000, as listed in official Medicare / NPI Registry data.
- What is Marius C. Viseroi's NPI number?
- 1669886933. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marius C. Viseroi works
Medicare's Facility Affiliation Data lists Marius C. Viseroi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- El Camino HealthMountain View, CA · Acute Care Hospital · CCN 050308
- Tri-City Medical CenterOceanside, CA · Acute Care Hospital · CCN 050128
Practice locations
Addresses where Marius C. Viseroi is enrolled with Medicare (CMS data updated 2026-10-02).
- 1050 Linden AveLong Beach, CA 90813 (562) 491‑9000
- 2825 Capitol AveSacramento, CA 95816 (916) 887‑1230
- 3907 Waring Rd, Suite 2Oceanside, CA 92056 (760) 941‑0221
- 4002 Vista WayOceanside, CA 92056 (760) 724‑8411
- 815 Pollard RdLos Gatos, CA 95032 (408) 378‑6131
Group practices
Medicare enrollment lists Marius C. Viseroi as a member of these groups (CMS data updated 2026-10-02).
- Cep America - Intensivists PC125 clinicians in the group
- Pulmonary Specialists of North County Inc4 clinicians in the group
Specialties
Find other Critical Care (Intensivists) doctors in California →
Other critical care doctors in Long Beach
Clinicians with the same Medicare primary specialty in Long Beach, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669886933 |
| 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