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SYDNEY SEIFERT
NPI 1306376926
Social Worker - Clinical in New York, NY

Active since June 15, 2017PECOS Enrolled
25 CENTRAL PARK W APT 1U, NEW YORK, NY 10023(917) 822-8485 Get Directions Write a Review

NPPES record last updated: November 10, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 10, 2023, Jul 21, 2022, Jun 15, 2017 (3 updates tracked since 2017).

About Sydney Seifert NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SYDNEY SEIFERT (NPI 1306376926) is an individual clinical provider in New York, New York, licensed in New York (116231801) and active in the NPI registry since June 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1306376926
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameSYDNEY SEIFERT
Location Address25 CENTRAL PARK W APT 1UNew York, NY 10023-7214
Mailing Address25 Central Park W Apt 1uNew York, NY 10023-7214 · (917) 822-8485
Phone(917) 822-8485
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateJune 15, 2017
Last NPPES UpdateNovember 10, 20233 updates tracked since enumeration
NPPES CertifiedSeptember 25, 2023
✔ NPI 1306376926 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in NY · 116231801
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
25 CENTRAL PARK W APT 1U, New York, NY 10023
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sydney Seifert is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8325481252
PECOS Enrollment IDI20240212000099
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Sydney Seifert reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sydney Seifert Lcsw PLLC
Same address
Clinical
25 CENTRAL PARK W APT 1U
New York, NY 10023
  • Reassigned Medicare billing, New York enrollment
NPI 1134908569 (917) 822-8485

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 1 hour 90837
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.
299 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10023 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $65.69 – $198.19
Typical copayment $0.00 (range $16.42 – $49.54)
Most-billed visit code NA
Established Patient
$81.44 typical visit price
range $21.20 – $160.66
Typical copayment $20.36 (range $5.30 – $40.16)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RUTH A. RICHTER MD
Psychiatry & Neurology (Psychiatry)
25 CENTRAL PARK W APT 1U
NEW YORK, NY 10023
New York County (917) 409-8310
DR. SARA GLASS PHD, LCSW
Social Worker (Clinical)
25 CENTRAL PARK W APT 1U
NEW YORK, NY 10023
New York County (516) 405-0362
SYDNEY SEIFERT LCSW PLLC
Social Worker (Clinical)
25 CENTRAL PARK W APT 1U
NEW YORK, NY 10023
New York County (917) 822-8485
TANNER KALEB WILLIAMS LMSW
Social Worker
25 CENTRAL PARK W APT 1U
NEW YORK, NY 10023
New York County (646) 665-3390
LUNA PARADISE LMSW
Social Worker
25 CENTRAL PARK W APT 1U
NEW YORK, NY 10023
New York County (914) 350-4067
BENJAMIN ZELINSKI LCSW
Social Worker (Clinical)
25 CENTRAL PARK W APT 1U
NEW YORK, NY 10023
New York County (929) 525-4032
KAREN HIRSCHKORN NPP
Nurse Practitioner (Psychiatric/Mental Health)
25 CENTRAL PARK W APT 1U
NEW YORK, NY 10023
New York County (212) 247-7771
GOLDIE JUNIK LCSW
Social Worker (Clinical)
25 CENTRAL PARK W APT 1U
NEW YORK, NY 10023
New York County (646) 339-5567

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sydney Seifert's NPI number?

The NPI number for Sydney Seifert is 1306376926. It was assigned to this individual provider in the NPPES registry on June 15, 2017.

Where is Sydney Seifert located?

Sydney Seifert practices at 25 Central Park W Apt 1U, New York, NY 10023. The listed phone number is (917) 822-8485.

What is Sydney Seifert's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Sydney Seifert enrolled in Medicare?

Yes. Sydney Seifert is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sydney Seifert's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sydney Seifert reassigns Medicare benefits to Sydney Seifert Lcsw PLLC (New York, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sydney Seifert's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sydney Seifert was last updated on November 10, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.