Quick answers
- Where does Peter A. Guiney see patients?
- Medicare's clinician data lists 2 practice locations, including Hempstead, NY and Elmont, NY. Call before your visit to confirm the address.
- What is Peter A. Guiney's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Peter A. Guiney accept Medicare assignment?
- Yes. Medicare's clinician data says Peter A. Guiney 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 Peter A. Guiney?
- (516) 572-1300, as listed in official Medicare / NPI Registry data.
- What is Peter A. Guiney's NPI number?
- 1306903638. 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 Peter A. Guiney is enrolled with Medicare (CMS data updated 2026-10-02).
- 135 Main StHempstead, NY 11550 (516) 572‑1300
- 161 Hempstead TpkeElmont, NY 11003 (516) 571‑8200
Group practices
Medicare enrollment lists Peter A. Guiney as a member of this group (CMS data updated 2026-10-02).
- Harmony Health Care Long Island25 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Hempstead
Clinicians with the same Medicare primary specialty in Hempstead, NY — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306903638 |
| 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