Quick answers
- Does Ron Christian C. Crisostomo accept Medicare assignment?
- Yes. Medicare's clinician data says Ron Christian C. Crisostomo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Ron Christian C. Crisostomo's NPI number?
- 1194454900. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ron Christian C. Crisostomo works
Medicare's Facility Affiliation Data lists Ron Christian C. Crisostomo at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Adventist Health SonoraSonora, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050335
- Mark Twain Medical CenterSan Andreas, CA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 051332
- Sutter Amador HospitalJackson, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050014
Practice locations
Addresses where Ron Christian C. Crisostomo is enrolled with Medicare (CMS data updated October 2, 2026).
- 768 Mountain Ranch RdSan Andreas, CA 95249 (209) 754‑3521
Group practices
Medicare enrollment lists Ron Christian C. Crisostomo as a member of this group (CMS data updated October 2, 2026).
- Mark Twain Medical Center27 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in San Andreas
Clinicians with the same Medicare primary specialty in San Andreas, CA — not a recommendation.
Other clinicians in Mark Twain Medical Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1194454900 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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