Quick answers
- Which hospitals does Karissa N. Arca work at?
- Medicare's official clinician data lists Karissa N. Arca at 1 hospital: Mayo Clinic Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Karissa N. Arca see patients?
- Medicare's clinician data lists 1 practice location in Scottsdale, AZ. Call before your visit to confirm the address.
- What is Karissa N. Arca's specialty?
- Medicare lists Neurology as the primary specialty.
- Does Karissa N. Arca accept Medicare assignment?
- Yes. Medicare's clinician data says Karissa N. Arca 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 Karissa N. Arca?
- (480) 301-8000, as listed in official Medicare / NPI Registry data.
- What is Karissa N. Arca's NPI number?
- 1235526955. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Karissa N. Arca works
Medicare's Facility Affiliation Data lists Karissa N. Arca at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mayo Clinic HospitalPhoenix, AZ · Acute Care Hospital · CCN 030103
Practice locations
Addresses where Karissa N. Arca is enrolled with Medicare (CMS data updated 2026-10-02).
- 13400 E Shea BlvdScottsdale, AZ 85259 (480) 301‑8000
Group practices
Medicare enrollment lists Karissa N. Arca as a member of this group (CMS data updated 2026-10-02).
- Mayo Clinic Arizona1,626 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Scottsdale
Clinicians with the same Medicare primary specialty in Scottsdale, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235526955 |
| 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