Quick answers
- Which hospitals does Fen Jiang work at?
- Medicare's official clinician data lists Fen Jiang at 2 hospitals: Providence Centralia Hospital and Providence Mission Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Fen Jiang see patients?
- Medicare's clinician data lists 4 practice locations, including Fullerton, CA and Mission Viejo, CA. Call before your visit to confirm the address.
- What is Fen Jiang's specialty?
- Medicare lists Medical Oncology as the primary specialty.
- Does Fen Jiang accept Medicare assignment?
- Yes. Medicare's clinician data says Fen Jiang 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 Fen Jiang offer telehealth?
- Medicare's clinician data says Fen Jiang offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Fen Jiang?
- (714) 992-5350, as listed in official Medicare / NPI Registry data.
- What is Fen Jiang's NPI number?
- 1831312289. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Fen Jiang works
Medicare's Facility Affiliation Data lists Fen Jiang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence Centralia HospitalCentralia, WA · Acute Care Hospital · CCN 500019
- Providence Mission HospitalMission Viejo, CA · Acute Care Hospital · CCN 050567
Practice locations
Addresses where Fen Jiang is enrolled with Medicare (CMS data updated 2026-10-02).
- 1950 Sunny Crest Dr, Suite 2900Fullerton, CA 92835 (714) 992‑5350
- 26800 Crown Valley PkwyMission Viejo, CA 92691
- 27700 Medical Ctr RdMission Viejo, CA 92691 (949) 364‑1400
- 27799 Medical Ctr RdMission Viejo, CA 92691
Group practices
Medicare enrollment lists Fen Jiang as a member of this group (CMS data updated 2026-10-02).
- Providence Medical Foundation1,466 clinicians in the group
Specialties
- Medical Oncologyprimary
Other oncologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1831312289 |
| 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