Quick answers
- Which hospitals does Matthew Quinterno work at?
- Medicare's official clinician data lists Matthew Quinterno at 1 hospital: Mount Sinai South Nassau. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew Quinterno see patients?
- Medicare's clinician data lists 2 practice locations, including Merrick, NY. Call before your visit to confirm the address.
- What is Matthew Quinterno's specialty?
- Medicare lists Clinical Psychologist as the primary specialty.
- Does Matthew Quinterno accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew Quinterno 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 Matthew Quinterno?
- (516) 231-1957, as listed in official Medicare / NPI Registry data.
- What is Matthew Quinterno's NPI number?
- 1285511519. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew Quinterno works
Medicare's Facility Affiliation Data lists Matthew Quinterno at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mount Sinai South NassauOceanside, NY · Acute Care Hospital · CCN 330198
Practice locations
Addresses where Matthew Quinterno is enrolled with Medicare (CMS data updated 2026-10-02).
- 124 Merrick AveMerrick, NY 11566 (516) 231‑1957
- 124 Merrick Ave, Suite 10Merrick, NY 11566
Specialties
- Clinical Psychologistprimary
Other clinical psychologists in Merrick
Clinicians with the same Medicare primary specialty in Merrick, NY — not a recommendation.
Clinician information
| Credential | PSY |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285511519 |
| 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