Quick answers
- Where does Giannina M. Gallagher see patients?
- Medicare's clinician data lists 10 practice locations, including Smithtown, NY, Bay Shore, NY and Manhasset, NY. Call before your visit to confirm the address.
- What is Giannina M. Gallagher's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Giannina M. Gallagher accept Medicare assignment?
- Yes. Medicare's clinician data says Giannina M. Gallagher 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 Giannina M. Gallagher offer telehealth?
- Medicare's clinician data says Giannina M. Gallagher offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Giannina M. Gallagher?
- (631) 968-3293, as listed in official Medicare / NPI Registry data.
- What is Giannina M. Gallagher's NPI number?
- 1528345600. 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 Giannina M. Gallagher is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 10; the Medicare profile lists all.
- 226 E Middle Country RdSmithtown, NY 11787
- 280 E Main StBay Shore, NY 11706 (631) 968‑3293
- 300 Community DrManhasset, NY 11030
- 300 Community Dr LlManhasset, NY 11030 (516) 562‑2229
- 330 Community DrManhasset, NY 11030 (516) 708‑2550
Group practices
Medicare enrollment lists Giannina M. Gallagher as a member of this group (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Smithtown
Clinicians with the same Medicare primary specialty in Smithtown, NY — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1528345600 |
| 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