Quick answers
- Which hospitals does Marissa Casanova work at?
- Medicare's official clinician data lists Marissa Casanova at 1 hospital: Bon Secours Southside Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marissa Casanova see patients?
- Medicare's clinician data lists 5 practice locations, including Haymarket, VA, Petersburg, VA and Canton, OH. Call before your visit to confirm the address.
- What is Marissa Casanova's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Marissa Casanova accept Medicare assignment?
- Yes. Medicare's clinician data says Marissa Casanova 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 Marissa Casanova?
- (240) 686-2300, as listed in official Medicare / NPI Registry data.
- What is Marissa Casanova's NPI number?
- 1487246823. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marissa Casanova works
Medicare's Facility Affiliation Data lists Marissa Casanova at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bon Secours Southside Medical CenterPetersburg, VA · Acute Care Hospital · CCN 490067
Practice locations
Addresses where Marissa Casanova is enrolled with Medicare (CMS data updated 2026-10-02).
- 15225 Heathcote BlvdHaymarket, VA 20169 (240) 686‑2300
- 200 Medical Park BlvdPetersburg, VA 23805 (240) 686‑2300
- 4535 Dressier Rd NWCanton, OH 44718
- 8350 Colorado Blvd, Unit 160Firestone, CO 80504
- 8700 Sudley RdManassas, VA 20110 (703) 369‑8000
Group practices
Medicare enrollment lists Marissa Casanova as a member of these groups (CMS data updated 2026-10-02).
- Emergency Medicine Associates P.A., P.C.714 clinicians in the group
- Intermountain Medical Group Denver LLC568 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Haymarket
Clinicians with the same Medicare primary specialty in Haymarket, VA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487246823 |
| 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