NPPES file of Aug 9, 2026

Margaret Seide, MD

Psychiatry Physician · New York, NY

Margaret Seide, MD is a psychiatry physician with a practice address in New York, New York, and NPI 1366641151, issued on Jul 12, 2007. Check the license (New York 275268, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366641151
Name
Margaret Seide
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
275268 NY
22031 MD
Self-reported in NPPES; status is on the state search
Practice location
475 Seaview Avenue, New York, NY 10305
Phone
(718) 226-2776
Enumerated
Jul 12, 2007
Record last updated
Sep 24, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(410) 955-0152
Medicaid ID
036501700 MD
Medicare enrollment
Enrolled (PECOS I20141016001516); accepts Medicare assignment
Medical or professional school
New York University School Of Medicine, 2004
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 475 Seaview Avenue

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Zakaria Alameddine, M.D.Student in an Organized Health Care Education/Training Program1609442102

Verify Margaret Seide in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 275268
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

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96% fewer Medicare Part D claims than the average psychiatry physician in 2024

44 Medicare Part D claims for 19 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Margaret Seide44
  2. Specialty average1,000

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Physician Affiliate Group OF New York PCBrooklyn, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Margaret Seide among 6,589 psychiatry physician records in New York

Margaret Seide, MD is one of 6,589 psychiatry physician records with a practice address in New York. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.

  • NPI issued2007 · 35% of these records are older, 44% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated2004 · median 2002 among the 2,559 with a school on file
  • Record last updated2014 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,604 psychiatry physician records list a practice address in New York

They are 2,604 of the 98,468 NPPES records with a practice address in New York, and 6,589 psychiatry physician records in New York.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Deva Alapati, M.DStaten Island, NY 103051104945146
  2. Yelena Belyayeva, MDStaten Island, NY 103051093798597
  3. Sharon Greene, MDStaten Island, NY 103051073597928
  4. Jung Hahn, MDStaten Island, NY 103051659368769
  5. Eui-Don Joo, M.D.Staten Island, NY 103051952421612
  6. Prospero Lim, M.D.Staten Island, NY 103051609882729
  7. Swarnambal Mani, MDStaten Island, NY 103051528042272
  8. Jorge Oldan, M.D.Staten Island, NY 103051902979354

Common questions

What is Margaret Seide, MD's NPI number?

Margaret Seide, MD's National Provider Identifier (NPI) is 1366641151, issued on Jul 12, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Seide, MD located?

The NPPES record lists a practice address at 475 Seaview Avenue, New York, NY, 10305. Phone: (718) 226-2776. Providers update this record themselves, so call before visiting.

How can I verify Margaret Seide, MD's license?

NPPES lists New York license number 275268, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Margaret Seide, MD prescribe under Medicare Part D?

In 2024, Margaret Seide, MD had 44 Medicare Part D claims for 19 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.