Quick answers
- Where does Yan Ni see patients?
- Medicare's clinician data lists 2 practice locations, including Natick, MA and Cambridge, MA. Call before your visit to confirm the address.
- What is Yan Ni's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Yan Ni accept Medicare assignment?
- Yes. Medicare's clinician data says Yan Ni 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 Yan Ni?
- (508) 808-8878, as listed in official Medicare / NPI Registry data.
- What is Yan Ni's NPI number?
- 1477619989. 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 Yan Ni is enrolled with Medicare (CMS data updated 2026-10-02).
- 223 Worcester StNatick, MA 01760 (508) 808‑8878
- 25 Carleton StCambridge, MA 02142 (617) 258‑6896
Group practices
Medicare enrollment lists Yan Ni as a member of this group (CMS data updated 2026-10-02).
- Massachusetts Institute of Technology54 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Clinician information
| Graduation year | 2000 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477619989 |
| 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