NPPES file of Aug 9, 2026

Sydney Seifert

Clinical Social Worker · New York, NY

Sydney Seifert is a clinical social worker with a practice address in New York, New York, and NPI 1306376926, issued on Jun 15, 2017. Check the license (New York 116231801, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1306376926
Name
Sydney Seifert
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
116231801 NY
Self-reported in NPPES; status is on the state search
Practice location
25 Central Park W Apt 1U, New York, NY 10023
Phone
(917) 822-8485
Enumerated
Jun 15, 2017
Record last updated
Nov 10, 2023
Medicare enrollment
Enrolled (PECOS I20240212000099); may accept Medicare assignment
Telehealth
Offers telehealth (CMS)
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 25 Central Park W Apt 1U

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

  1. Sara Glass, PHD, LCSWClinical Social Worker1104179977
  2. Karen Hirschkorn, NPPPsychiatric/Mental Health Nurse Practitioner1790986479
  3. Goldie Junik, LCSWClinical Social Worker1831769439
  4. Luna Paradise, LMSWSocial Worker1376327445
  5. Ruth Richter, MDPsychiatry Physician1003940578
  6. Tanner Williams, LMSWSocial Worker1225875248

Verify Sydney Seifert in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 116231801
    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
Find the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Sydney Seifert among 29,293 clinical social worker records in New York

Sydney Seifert is one of 29,293 clinical social worker records with a practice address in New York. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2017, is newer than 67% of them.

  • NPI issued2017 · 67% of these records are older, 30% newer
  • In a Medicare fileNo · 8% of these records are
  • In the CMS Doctors and Clinicians fileYes · 17% of these records are
  • Graduated2016 · median 2001 among the 5,004 with a school on file
  • Record last updated2023 · 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 1041C0700X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6,908 clinical social worker records list a practice address in New York

They are 6,908 of the 98,468 NPPES records with a practice address in New York, and 29,293 clinical social worker records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical social worker records with the nearest ZIP codes

  1. Lynne Alterman, LCSWNew York, NY 100231437119344
  2. Janet Berk, LCSWNew York, NY 100231972566511
  3. Donna Bersch, LCSWNew York, NY 100231740251776
  4. Lee Chew, L.C.S.W.New York, NY 100231760450076
  5. Linda Grunbaum, LCSWNew York, NY 100231255377644
  6. Brigitte Lifschitz, LCSWNew York, NY 100231881697167
  7. Erna Neumann, ANP; PMHNP; PMHNPNew York, NY 100231487617122
  8. Michael Penn, LCSWNew York, NY 100231801874607

Common questions

What is Sydney Seifert's NPI number?

Sydney Seifert's National Provider Identifier (NPI) is 1306376926, issued on Jun 15, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Sydney Seifert located?

The NPPES record lists a practice address at 25 Central Park W Apt 1U, New York, NY, 10023. Phone: (917) 822-8485. Providers update this record themselves, so call before visiting.

How can I verify Sydney Seifert's license?

NPPES lists New York license number 116231801, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity 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. 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.