Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Margaret Seide, MD

Individual provider Addiction Medicine (Psychiatry & Neurology) Physician · NPI 1366641151

Margaret Seide, MD practises Psychiatry in New York, New York. Graduated from New York University School of Medicine in 2004, 22 years ago. Practices with Physician Affiliate Group of New York PC, a 1,224-clinician group and accepts Medicare assignment. Licensed in Maryland and New York.

Years since qualifying
22
Trained at
New York University School of Medicine
Licensed in
MD, NY
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

475 Seaview Ave Dept OF Behavioral Sciences
New York, NY 10305 Not confirmed with CMS for 12 years — call before visiting
Phone: (718) 226-2776
Fax: (410) 955-0152
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 275268 (NY)
Addiction Medicine (Psychiatry & Neurology) Physician Taxonomy 2084A0401X · Licence 22031 (MD)

Record details

NPI number1366641151
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 12, 2007
Last updated in NPPESSeptember 24, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolNEW YORK UNIVERSITY SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Physician Affiliate Group Of New York Pc — 1224 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients20
Services billed 21 a service is one billed item, such as a visit, a test or a procedure
Average patient age57

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Physician Affiliate Group of New York PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1224 clinicians in the practice; 12 are shown here.

Other providers in New York