Quick answers
- Which hospitals does Lily Chen work at?
- Medicare's official clinician data lists Lily Chen at 4 hospitals: Adventist Health St Helena, Providence Queen of the Valley Medical Center, Providence Santa Rosa Memorial Hospital and Sonoma Valley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lily Chen see patients?
- Medicare's clinician data lists 2 practice locations, including Petaluma, CA and Napa, CA. Call before your visit to confirm the address.
- What is Lily Chen's specialty?
- Medicare lists Undefined Physician Type (Specify) as the primary specialty, and also Cardiovascular Disease (Cardiology), Internal Medicine and Interventional Cardiology.
- Does Lily Chen accept Medicare assignment?
- Yes. Medicare's clinician data says Lily 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.
- Does Lily Chen offer telehealth?
- Medicare's clinician data says Lily Chen offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Lily Chen?
- (707) 763-0802, as listed in official Medicare / NPI Registry data.
- What is Lily Chen's NPI number?
- 1861819815. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lily Chen works
Medicare's Facility Affiliation Data lists Lily 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 St HelenaSaint Helena, CA · Acute Care Hospital · CCN 050013
- Providence Queen of the Valley Medical CenterNapa, CA · Acute Care Hospital · CCN 050009
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · CCN 050174
- Sonoma Valley HospitalSonoma, CA · Acute Care Hospital · CCN 050090
Practice locations
Addresses where Lily Chen is enrolled with Medicare (CMS data updated 2026-10-02).
- 141 Lynch Creek Way, Suite CPetaluma, CA 94954 (707) 763‑0802
- 3443 Villa Ln, Suite 2Napa, CA 94558 (707) 253‑8280
Group practices
Medicare enrollment lists Lily Chen as a member of this group (CMS data updated 2026-10-02).
- Providence Medical Foundation1,466 clinicians in the group
Specialties
- Undefined Physician Type (Specify)primary
- Cardiovascular Disease (Cardiology)also
- Internal Medicinealso
- Interventional Cardiologyalso
Find other Undefined Physician Type (Specify) doctors in California →
Other physicians in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Geisel School Of Medicine At Dartmouth |
| Graduation year | 2014 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1861819815 |
| 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