Quick answers
- Where does Francesca Maffei see patients?
- Medicare's clinician data lists 2 practice locations, including San Mateo, CA. Call before your visit to confirm the address.
- What is Francesca Maffei's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Francesca Maffei accept Medicare assignment?
- Yes. Medicare's clinician data says Francesca Maffei 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 Francesca Maffei's NPI number?
- 1447619168. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Francesca Maffei is enrolled with Medicare (CMS data updated 2026-10-02).
- 22 W 39th Ave, Hos316msSan Mateo, CA 94403
- 222 W 39th AveSan Mateo, CA 94403
Group practices
Medicare enrollment lists Francesca Maffei as a member of this group (CMS data updated 2026-10-02).
- County of San Mateo310 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in San Mateo
Clinicians with the same Medicare primary specialty in San Mateo, CA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1447619168 |
| 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
- 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