Quick answers
- Where does Marissa Cossio see patients?
- Medicare's clinician data lists 2 practice locations, including Sparks, NV and Mission Viejo, CA. Call before your visit to confirm the address.
- What is Marissa Cossio's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Marissa Cossio accept Medicare assignment?
- Medicare's clinician data says Marissa Cossio may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Marissa Cossio's NPI number?
- 1801753801. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Marissa Cossio is enrolled with Medicare (CMS data updated 2026-10-02).
- 1107 Longspur WaySparks, NV 89441
- 26522 La Alameda, Suite 380Mission Viejo, CA 92691
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Sparks
Clinicians with the same Medicare primary specialty in Sparks, NV — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1801753801 |
| 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
- 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