Quick answers
- Which hospitals does Frank Chen work at?
- Medicare's official clinician data lists Frank Chen at 5 hospitals: Adventist Health and Rideout, Adventist Health Simi Valley, Adventist Health St Helena, Adventist Health Ukiah Valley and Glendale Adventist Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Frank Chen see patients?
- Medicare's clinician data lists 31 practice locations, including Willits, CA, Saint Helena, CA and Harrison, NJ. Call before your visit to confirm the address.
- What is Frank Chen's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Frank Chen accept Medicare assignment?
- Yes. Medicare's clinician data says Frank Chen 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 Frank Chen?
- (707) 459-6801, as listed in official Medicare / NPI Registry data.
- What is Frank Chen's NPI number?
- 1891149852. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Frank Chen works
Medicare's Facility Affiliation Data lists Frank Chen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health and RideoutMarysville, CA · Acute Care Hospital · CCN 050133
- Adventist Health Simi ValleySimi Valley, CA · Acute Care Hospital · CCN 050236
- Adventist Health St HelenaSaint Helena, CA · Acute Care Hospital · CCN 050013
- Adventist Health Ukiah ValleyUkiah, CA · Acute Care Hospital · CCN 050301
- Glendale Adventist Medical CenterGlendale, CA · Acute Care Hospital · CCN 050239
Practice locations
Addresses where Frank Chen is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 31; the Medicare profile lists all.
- 1 Marcela DrWillits, CA 95490 · Willits Hospital Inc (707) 459‑6801
- 10 Woodland RdSaint Helena, CA 94574 · St. Helena Hospital (707) 963‑3611
- 1100 Frank E Rodgers Blvd S, Apt 4Harrison, NJ 07029 · Rideout Memorial Hospital (888) 225‑0628
- 1100 Frank E Rodgers Blvd S, Apt 433Harrison, NJ 07029 (888) 225‑0628
- 115 Mall DrHanford, CA 93230 · Hanford Community Hospital (559) 582‑9000
Group practices
Medicare enrollment lists Frank Chen as a member of these groups (CMS data updated 2026-10-02).
- USC Care Medical Group Inc1,380 clinicians in the group
- Ukiah Adventist Hospital135 clinicians in the group
- Seven Star Hospital Associates Inc126 clinicians in the group
- Advanced Radiology and Interventional Associates Inc104 clinicians in the group
- Glendale Adventist Medical Center103 clinicians in the group
- Adventist Health Clearlake Hospital Inc.87 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Willits
Clinicians with the same Medicare primary specialty in Willits, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891149852 |
| 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