Quick answers
- Does Russell J. Warren accept Medicare assignment?
- Yes. Medicare's clinician data says Russell J. Warren accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Russell J. Warren's NPI number?
- 1598702615. 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 Russell J. Warren is enrolled with Medicare (CMS data updated October 2, 2026).
- 1515 Veterans Memorial HwyIslandia, NY 11749 (631) 323‑6022
- 167 Main StSouthampton, NY 11968 (631) 283‑4190
Group practices
Medicare enrollment lists Russell J. Warren as a member of these groups (CMS data updated October 2, 2026).
- Peyman Younesi MD PLLC92 clinicians in the group
- Manual and Sports Physical Therapy, PC7 clinicians in the group
Specialties
Find other clinicians: Physical Therapist in Private Practice, New York →
Other physical therapists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Other clinicians in Peyman Younesi MD PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PT |
|---|---|
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1598702615 |
| 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 October 2, 2026, retrieved October 29, 2026
- 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