Quick answers
- Which hospitals does Margaret Seide work at?
- Medicare's official clinician data lists Margaret Seide at 3 hospitals: Bellevue Hospital Center, Lincoln Medical & Mental Health Center and South Brooklyn Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Margaret Seide see patients?
- Medicare's clinician data lists 3 practice locations, including Newport Beach, CA, Bronx, NY and Brooklyn, NY. Call before your visit to confirm the address.
- What is Margaret Seide's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does Margaret Seide accept Medicare assignment?
- Yes. Medicare's clinician data says Margaret Seide 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 Margaret Seide?
- (949) 877-9695, as listed in official Medicare / NPI Registry data.
- What is Margaret Seide's NPI number?
- 1366641151. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Margaret Seide works
Medicare's Facility Affiliation Data lists Margaret Seide at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bellevue Hospital CenterNew York, NY · Acute Care Hospital · CCN 330204
- Lincoln Medical & Mental Health CenterBronx, NY · Acute Care Hospital · CCN 330080
- South Brooklyn HealthBrooklyn, NY · Acute Care Hospital · CCN 330196
Practice locations
Addresses where Margaret Seide is enrolled with Medicare (CMS data updated 2026-10-02).
- 1100 Quail St, Suite 206Newport Beach, CA 92660 (949) 877‑9695
- 234 E 149 StBronx, NY 10451 (718) 579‑6101
- 2601 Ocean PkwyBrooklyn, NY 11235 (718) 616‑5356
Group practices
Medicare enrollment lists Margaret Seide as a member of these groups (CMS data updated 2026-10-02).
- Physician Affiliate Group of New York PC1,225 clinicians in the group
- Shadi Aramesh MD Apc Inc2 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Newport Beach
Clinicians with the same Medicare primary specialty in Newport Beach, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 2004 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366641151 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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