Quick answers
- Which hospitals does Stephanie Castillo work at?
- Medicare's official clinician data lists Stephanie Castillo at 1 hospital: Mercy Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stephanie Castillo see patients?
- Medicare's clinician data lists 3 practice locations, including Madera, CA, Gustine, CA and Merced, CA. Call before your visit to confirm the address.
- What is Stephanie Castillo's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Stephanie Castillo accept Medicare assignment?
- Yes. Medicare's clinician data says Stephanie Castillo 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 Stephanie Castillo?
- (559) 664-4000, as listed in official Medicare / NPI Registry data.
- What is Stephanie Castillo's NPI number?
- 1083147730. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stephanie Castillo works
Medicare's Facility Affiliation Data lists Stephanie Castillo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Medical CenterMerced, CA · Acute Care Hospital · CCN 050444
Practice locations
Addresses where Stephanie Castillo is enrolled with Medicare (CMS data updated 2026-10-02).
- 344 E 6th StMadera, CA 93638 (559) 664‑4000
- 489 5th StGustine, CA 95322 (209) 854‑3728
- 850 W Olive Ave, Suite AMerced, CA 95348 (209) 437‑9410
Group practices
Medicare enrollment lists Stephanie Castillo as a member of these groups (CMS data updated 2026-10-02).
- Community Health Centers of America117 clinicians in the group
- Camarena Health82 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Madera
Clinicians with the same Medicare primary specialty in Madera, CA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083147730 |
| 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