Quick answers
- Where does Barry L. Diener see patients?
- Medicare's clinician data lists 2 practice locations, including Stony Brook, NY and Islip Terrace, NY. Call before your visit to confirm the address.
- What is Barry L. Diener's specialty?
- Medicare lists Pulmonary Disease as the primary specialty, and also Pediatric Medicine.
- Does Barry L. Diener accept Medicare assignment?
- Yes. Medicare's clinician data says Barry L. Diener 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 Barry L. Diener?
- (631) 444-7653, as listed in official Medicare / NPI Registry data.
- What is Barry L. Diener's NPI number?
- 1629366372. 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 Barry L. Diener is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Nicolls RdStony Brook, NY 11794 (631) 444‑7653
- 2701 Sunrise HwyIslip Terrace, NY 11752 (631) 638‑2375
Group practices
Medicare enrollment lists Barry L. Diener as a member of this group (CMS data updated 2026-10-02).
- Stony Brook Children's Service, University Faculty Practice Corporatio42 clinicians in the group
Specialties
- Pulmonary Diseaseprimary
- Pediatric Medicinealso
Other pulmonologists in Stony Brook
Clinicians with the same Medicare primary specialty in Stony Brook, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629366372 |
| 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