Quick answers
- Which hospitals does Mariana Leone work at?
- Medicare's official clinician data lists Mariana Leone at 3 hospitals: Crownpoint Healthcare Facility, Hilo Benioff Medical Center and Plumas District Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mariana Leone see patients?
- Medicare's clinician data lists 3 practice locations, including Quincy, CA, Hilo, HI and Crownpoint, NM. Call before your visit to confirm the address.
- What is Mariana Leone's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Mariana Leone accept Medicare assignment?
- Yes. Medicare's clinician data says Mariana Leone 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 Mariana Leone?
- (530) 283-2121, as listed in official Medicare / NPI Registry data.
- What is Mariana Leone's NPI number?
- 1659909141. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mariana Leone works
Medicare's Facility Affiliation Data lists Mariana Leone at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Crownpoint Healthcare FacilityCrownpoint, NM · Acute Care Hospital · CCN 320062
- Hilo Benioff Medical CenterHilo, HI · Acute Care Hospital · CCN 120005
- Plumas District HospitalQuincy, CA · Critical Access Hospital · CCN 051326
Practice locations
Addresses where Mariana Leone is enrolled with Medicare (CMS data updated 2026-10-02).
- 1065 Bucks Lake RdQuincy, CA 95971 (530) 283‑2121
- 1190 Waianuenue AveHilo, HI 96720 (808) 932‑3000
- Junction of Hwy 371 Navajo Rt 9Crownpoint, NM 87313 (505) 786‑5291
Group practices
Medicare enrollment lists Mariana Leone as a member of these groups (CMS data updated 2026-10-02).
- Quantum Healthcare Medical Associates Inc109 clinicians in the group
- DHHS PHS Naihs Crownpoint Hospital45 clinicians in the group
- Plumas District Hospital43 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Quincy
Clinicians with the same Medicare primary specialty in Quincy, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659909141 |
| 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