Quick answers
- Where does Massiel Grullon see patients?
- Medicare's clinician data lists 2 practice locations, including Far Rockaway, NY and Riverhead, NY. Call before your visit to confirm the address.
- What is Massiel Grullon's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Massiel Grullon accept Medicare assignment?
- Yes. Medicare's clinician data says Massiel Grullon 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 Massiel Grullon offer telehealth?
- Medicare's clinician data says Massiel Grullon offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Massiel Grullon?
- (516) 792-1600, as listed in official Medicare / NPI Registry data.
- What is Massiel Grullon's NPI number?
- 1912248675. 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 Massiel Grullon is enrolled with Medicare (CMS data updated 2026-10-02).
- 1612 Central Ave, Suite 201Far Rockaway, NY 11691 (516) 792‑1600
- 170 Old Country RdRiverhead, NY 11901 (631) 208‑4460
Group practices
Medicare enrollment lists Massiel Grullon as a member of these groups (CMS data updated 2026-10-02).
- Vantage Medical Associates PC83 clinicians in the group
- Suffolk Primary Health LLC61 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Far Rockaway
Clinicians with the same Medicare primary specialty in Far Rockaway, NY — not a recommendation.
Clinician information
| Graduation year | 2012 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1912248675 |
| 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