Quick answers
- Which hospitals does Kaiwen Sun work at?
- Medicare's official clinician data lists Kaiwen Sun at 1 hospital: Sharp Chula Vista Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Kaiwen Sun see patients?
- Medicare's clinician data lists 4 practice locations, including Yuba City, CA, San Diego, CA and Chula Vista, CA. Call before your visit to confirm the address.
- What is Kaiwen Sun's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Kaiwen Sun accept Medicare assignment?
- Yes. Medicare's clinician data says Kaiwen Sun 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.
- Does Kaiwen Sun offer telehealth?
- Medicare's clinician data says Kaiwen Sun offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Kaiwen Sun?
- (530) 715-2900, as listed in official Medicare / NPI Registry data.
- What is Kaiwen Sun's NPI number?
- 1255891479. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Kaiwen Sun works
Medicare's Facility Affiliation Data lists Kaiwen Sun at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sharp Chula Vista Medical CenterChula Vista, CA · Acute Care Hospital · CCN 050222
Practice locations
Addresses where Kaiwen Sun is enrolled with Medicare (CMS data updated 2026-10-02).
- 1233 Plumas StYuba City, CA 95991 (530) 715‑2900
- 412 Washington StSan Diego, CA 92103 (619) 616‑2100
- 765 Medical Ctr CtChula Vista, CA 91911
- 980 Fulton AveSacramento, CA 95825 (530) 715‑2900
Group practices
Medicare enrollment lists Kaiwen Sun as a member of these groups (CMS data updated 2026-10-02).
- Cardiovascular Institute of San Diego Inc22 clinicians in the group
- Heart and Vascular Centers of America17 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Nebraska College Of Medicine |
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1255891479 |
| 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