Quick answers
- Where does Jon L. Brennan see patients?
- Medicare's clinician data lists 1 practice location in Center Moriches, NY. Call before your visit to confirm the address.
- What is Jon L. Brennan's specialty?
- Medicare lists Clinical Social Worker as the primary specialty.
- Does Jon L. Brennan accept Medicare assignment?
- Yes. Medicare's clinician data says Jon L. Brennan 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 Jon L. Brennan offer telehealth?
- Medicare's clinician data says Jon L. Brennan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jon L. Brennan?
- (631) 874-0185, as listed in official Medicare / NPI Registry data.
- What is Jon L. Brennan's NPI number?
- 1659863868. 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 Jon L. Brennan is enrolled with Medicare (CMS data updated 2026-10-02).
- 234 Main StCenter Moriches, NY 11934 (631) 874‑0185
Group practices
Medicare enrollment lists Jon L. Brennan as a member of this group (CMS data updated 2026-10-02).
- Community Counseling and LCSW Services17 clinicians in the group
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Center Moriches
Clinicians with the same Medicare primary specialty in Center Moriches, NY — not a recommendation.
Clinician information
| Medical school | State University Of New York At Stony Brook, School Of Medicine |
|---|---|
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1659863868 |
| 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