Quick answers
- Which hospitals does John D. Cha work at?
- Medicare's official clinician data lists John D. Cha at 3 hospitals: Mercy General Hospital, Mercy San Juan Medical Center and Methodist Hospital of Sacramento. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John D. Cha see patients?
- Medicare's clinician data lists 3 practice locations, including Yorba Linda, CA, Rancho Cordova, CA and Pasadena, CA. Call before your visit to confirm the address.
- What is John D. Cha's specialty?
- Medicare lists Hospitalist as the primary specialty.
- Does John D. Cha accept Medicare assignment?
- Medicare's clinician data says John D. Cha may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is John D. Cha's NPI number?
- 1548616337. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John D. Cha works
Medicare's Facility Affiliation Data lists John D. Cha at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy General HospitalSacramento, CA · Acute Care Hospital · CCN 050017
- Mercy San Juan Medical CenterCarmichael, CA · Acute Care Hospital · CCN 050516
- Methodist Hospital of SacramentoSacramento, CA · Acute Care Hospital · CCN 050590
Practice locations
Addresses where John D. Cha is enrolled with Medicare (CMS data updated 2026-10-02).
- 20525 Via LeridaYorba Linda, CA 92887
- 3400 Data DrRancho Cordova, CA 95670
- 393 E Walnut St 3rd Fl, Phr Group Provider Enrollment UnitPasadena, CA 91188
Specialties
- Hospitalistprimary
Other hospitalists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1548616337 |
| 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