Quick answers
- Which hospitals does Marina E. Coskinas work at?
- Medicare's official clinician data lists Marina E. Coskinas at 2 hospitals: College Hospital Costa Mesa and Providence St. Joseph Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marina E. Coskinas see patients?
- Medicare's clinician data lists 2 practice locations, including Costa Mesa, CA and Riverside, CA. Call before your visit to confirm the address.
- What is Marina E. Coskinas's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Marina E. Coskinas accept Medicare assignment?
- Medicare's clinician data says Marina E. Coskinas may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Marina E. Coskinas?
- (949) 642-2734, as listed in official Medicare / NPI Registry data.
- What is Marina E. Coskinas's NPI number?
- 1407682875. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marina E. Coskinas works
Medicare's Facility Affiliation Data lists Marina E. Coskinas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- College Hospital Costa MesaCosta Mesa, CA · Acute Care Hospital · CCN 050543
- Providence St. Joseph HospitalOrange, CA · Acute Care Hospital · CCN 050069
Practice locations
Addresses where Marina E. Coskinas is enrolled with Medicare (CMS data updated 2026-10-02).
- 301 Victoria StCosta Mesa, CA 92627 (949) 642‑2734
- 5900 Brockton AveRiverside, CA 92506 (800) 992‑0901
Group practices
Medicare enrollment lists Marina E. Coskinas as a member of this group (CMS data updated 2026-10-02).
- Evagelos Coskinas MD a Medical Corporation4 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Costa Mesa
Clinicians with the same Medicare primary specialty in Costa Mesa, CA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1407682875 |
| 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