Quick answers
- Where does Kathleen O'Sullivan see patients?
- Medicare's clinician data lists 2 practice locations, including Copiague, NY and Bay Shore, NY. Call before your visit to confirm the address.
- What is Kathleen O'Sullivan's specialty?
- Medicare lists Occupational Therapist in Private Practice as the primary specialty.
- Does Kathleen O'Sullivan accept Medicare assignment?
- Yes. Medicare's clinician data says Kathleen O'Sullivan 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 Kathleen O'Sullivan?
- (631) 842-4606, as listed in official Medicare / NPI Registry data.
- What is Kathleen O'Sullivan's NPI number?
- 1124610977. 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 Kathleen O'Sullivan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1160 Montauk HwyCopiague, NY 11726 (631) 842‑4606
- 85 W Main St, Suite 202Bay Shore, NY 11706 (631) 206‑3130
Group practices
Medicare enrollment lists Kathleen O'Sullivan as a member of this group (CMS data updated 2026-10-02).
- Professional Occupational and Physical Therapy, PLLC495 clinicians in the group
Specialties
Find other clinicians: Occupational Therapist in Private Practice, New York →
Other occupational therapists in Copiague
Clinicians with the same Medicare primary specialty in Copiague, NY — not a recommendation.
Clinician information
| Graduation year | 2020 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124610977 |
| 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