Margaret Seide, MD
NPI 1366641151 · Psychiatry Physician · New York, NY
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Seide, MD is a Psychiatry Physician provider in New York, NY (NPI 1366641151).
Provider details
- NPI number
- 1366641151
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 22031 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-12
- Last updated
- 2014-09-24
Frequently asked questions
- What is Margaret Seide's NPI number?
- Margaret Seide's National Provider Identifier (NPI) is 1366641151, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Seide's specialty?
- Margaret Seide is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Seide located?
- Margaret Seide's practice location on file with NPPES is 475 Seaview Avenue, New York, NY 10305.
- What is Margaret Seide's phone number?
- The practice phone number listed in the NPPES registry for Margaret Seide is (718) 226-2776.
- Does Margaret Seide accept Medicare?
- Margaret Seide is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Seide's NPI active?
- Yes — Margaret Seide's NPI (1366641151) is active in the NPPES registry as of the last update on 2014-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.