Quick answers
- Which hospitals does Mark Sison work at?
- Medicare's official clinician data lists Mark Sison at 5 hospitals: Adventist Health Hanford, Clovis Community Medical Center, Fresno Surgical Hospital, Kaweah Health Medical Center and Saint Agnes Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Sison see patients?
- Medicare's clinician data lists 2 practice locations, including Fresno, CA. Call before your visit to confirm the address.
- What is Mark Sison's specialty?
- Medicare lists Physical Medicine and Rehabilitation as the primary specialty.
- Does Mark Sison accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Sison 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 Mark Sison?
- (559) 290-7051, as listed in official Medicare / NPI Registry data.
- What is Mark Sison's NPI number?
- 1275777583. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark Sison works
Medicare's Facility Affiliation Data lists Mark Sison at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health HanfordHanford, CA · Acute Care Hospital · CCN 050121
- Clovis Community Medical CenterClovis, CA · Acute Care Hospital · CCN 050492
- Fresno Surgical HospitalFresno, CA · Acute Care Hospital · CCN 050708
- Kaweah Health Medical CenterVisalia, CA · Acute Care Hospital · CCN 050057
- Saint Agnes Medical CenterFresno, CA · Acute Care Hospital · CCN 050093
Practice locations
Addresses where Mark Sison is enrolled with Medicare (CMS data updated 2026-10-02).
- 1630 E Herndon AveFresno, CA 93720 (559) 290‑7051
- 2335 E Kashian LnFresno, CA 93701
Group practices
Medicare enrollment lists Mark Sison as a member of these groups (CMS data updated 2026-10-02).
- Community Foundation Medical Group283 clinicians in the group
- Sierra Pacific Orthopaedic Center Medical Group, Inc.27 clinicians in the group
Specialties
Find other Physical Medicine and Rehabilitation doctors in California →
Other rehabilitation doctors in Fresno
Clinicians with the same Medicare primary specialty in Fresno, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275777583 |
| 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