Quick answers
- Which hospitals does Ruhong Ma work at?
- Medicare's official clinician data lists Ruhong Ma at 2 hospitals: Sharp Memorial Hospital and Tri-City Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ruhong Ma see patients?
- Medicare's clinician data lists 8 practice locations, including Tehachapi, CA, Santee, CA and Delano, CA. Call before your visit to confirm the address.
- What is Ruhong Ma's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Hospitalist.
- Does Ruhong Ma accept Medicare assignment?
- Yes. Medicare's clinician data says Ruhong Ma 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 Ruhong Ma?
- (661) 823-3000, as listed in official Medicare / NPI Registry data.
- What is Ruhong Ma's NPI number?
- 1063679587. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ruhong Ma works
Medicare's Facility Affiliation Data lists Ruhong Ma at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sharp Memorial HospitalSan Diego, CA · Acute Care Hospital · CCN 050100
- Tri-City Medical CenterOceanside, CA · Acute Care Hospital · CCN 050128
Practice locations
Addresses where Ruhong Ma is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 1100 Magellan DrTehachapi, CA 93561 (661) 823‑3000
- 120 Town Ctr PkwySantee, CA 92071 (619) 662‑4100
- 1401 Garces HwyDelano, CA 93215 (661) 725‑4800
- 1637 3rd AveChula Vista, CA 91911 (619) 662‑4100
- 1637 3rd Ave, Suite BChula Vista, CA 91911 (619) 662‑4100
Group practices
Medicare enrollment lists Ruhong Ma as a member of these groups (CMS data updated 2026-10-02).
- Sharp Rees-Stealy Medical Group Inc884 clinicians in the group
- Centro de Salud de la Comunidad de San Ysidro, Inc.297 clinicians in the group
- Hospitalist Medicine Physicians of California Inc123 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
Other internal medicine doctors in Tehachapi
Clinicians with the same Medicare primary specialty in Tehachapi, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Edward Via Col Of Osteo Medicine-Virginia Campus |
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063679587 |
| 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