Quick answers
- Which hospitals does Stacey N. Massignan work at?
- Medicare's official clinician data lists Stacey N. Massignan at 3 hospitals: Novato Community Hospital, Providence Santa Rosa Memorial Hospital and UCSF Health St. Mary's Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stacey N. Massignan see patients?
- Medicare's clinician data lists 3 practice locations, including Santa Rosa, CA, Novato, CA and San Francisco, CA. Call before your visit to confirm the address.
- What is Stacey N. Massignan's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Stacey N. Massignan accept Medicare assignment?
- Yes. Medicare's clinician data says Stacey N. Massignan 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 Stacey N. Massignan?
- (707) 546-3210, as listed in official Medicare / NPI Registry data.
- What is Stacey N. Massignan's NPI number?
- 1801155056. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stacey N. Massignan works
Medicare's Facility Affiliation Data lists Stacey N. Massignan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Novato Community HospitalNovato, CA · Acute Care Hospital · CCN 050131
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · CCN 050174
- UCSF Health St. Mary's HospitalSan Francisco, CA · Acute Care Hospital · CCN 050457
Practice locations
Addresses where Stacey N. Massignan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1165 Montgomery DrSanta Rosa, CA 95405 (707) 546‑3210
- 180 Rowland WayNovato, CA 94945 (415) 209‑1300
- 900 Hyde StSan Francisco, CA 94109 (415) 353‑6000
Group practices
Medicare enrollment lists Stacey N. Massignan as a member of these groups (CMS data updated 2026-10-02).
- Providence Medical Foundation1,466 clinicians in the group
- Cep America - California1,292 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Santa Rosa
Clinicians with the same Medicare primary specialty in Santa Rosa, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Stony Brook, School Of Medicine |
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801155056 |
| 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