Quick answers
- Which hospitals does Iun In A. Chen work at?
- Medicare's official clinician data lists Iun In A. Chen at 2 hospitals: Petaluma Valley Hospital and Providence Santa Rosa Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Iun In A. Chen see patients?
- Medicare's clinician data lists 2 practice locations, including Petaluma, CA and Rohnert Park, CA. Call before your visit to confirm the address.
- What is Iun In A. Chen's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Iun In A. Chen accept Medicare assignment?
- Yes. Medicare's clinician data says Iun In A. 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 Iun In A. Chen?
- (707) 559-7500, as listed in official Medicare / NPI Registry data.
- What is Iun In A. Chen's NPI number?
- 1114288412. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Iun In A. Chen works
Medicare's Facility Affiliation Data lists Iun In A. Chen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Petaluma Valley HospitalPetaluma, CA · Acute Care Hospital · CCN 050136
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · CCN 050174
Practice locations
Addresses where Iun In A. Chen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1179 N McDowell BlvdPetaluma, CA 94954 (707) 559‑7500
- 5900 State Farm Dr, Suite 200Rohnert Park, CA 94928 (707) 559‑7600
Group practices
Medicare enrollment lists Iun In A. Chen as a member of this group (CMS data updated 2026-10-02).
- Petaluma Health Center Inc73 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Petaluma
Clinicians with the same Medicare primary specialty in Petaluma, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Rutgers New Jersey Medical School |
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1114288412 |
| 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