Quick answers
- Which hospitals does Samuel Ko work at?
- Medicare's official clinician data lists Samuel Ko at 1 hospital: St Joseph's Medical Center of Stockton. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Samuel Ko see patients?
- Medicare's clinician data lists 1 practice location in Sacramento, CA. Call before your visit to confirm the address.
- What is Samuel Ko's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Samuel Ko accept Medicare assignment?
- Yes. Medicare's clinician data says Samuel Ko 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 Samuel Ko's NPI number?
- 1790826279. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Samuel Ko works
Medicare's Facility Affiliation Data lists Samuel Ko at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Joseph's Medical Center of StocktonStockton, CA · Acute Care Hospital · CCN 050084
Practice locations
Addresses where Samuel Ko is enrolled with Medicare (CMS data updated 2026-10-02).
- 2800 L StSacramento, CA 95816
Group practices
Medicare enrollment lists Samuel Ko as a member of this group (CMS data updated 2026-10-02).
- Sutter Valley Medical Foundation2,500 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Sacramento
Clinicians with the same Medicare primary specialty in Sacramento, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790826279 |
| 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