Quick answers
- Does Alexandria Mosquera accept Medicare assignment?
- Yes. Medicare's clinician data says Alexandria Mosquera accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Alexandria Mosquera's NPI number?
- 1639965197. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alexandria Mosquera works
Medicare's Facility Affiliation Data lists Alexandria Mosquera at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Peconic Bay Medical CenterRiverhead, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330107
Practice locations
Addresses where Alexandria Mosquera is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Heroes WayRiverhead, NY 11901 (631) 548‑6101
Group practices
Medicare enrollment lists Alexandria Mosquera as a member of this group (CMS data updated October 2, 2026).
- Central Suffolk Hospital95 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Riverhead
Clinicians with the same Medicare primary specialty in Riverhead, NY — not a recommendation.
Other clinicians in Central Suffolk Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| School | Touro Un Col Of Osteopathic Medicine, New York |
| Graduation year | 2025 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639965197 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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