MR. NICHOLAS EDWARD SIEBAN LCSW
NPI 1750956728
Social Worker - Clinical in Baldwin, NY

Q: What is Nicholas Sieban's NPI number?

The NPI number for Nicholas Sieban is 1750956728. It was assigned to this individual provider in the NPPES registry on May 23, 2021.

Q: What is Nicholas Sieban's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Nicholas Sieban was last updated on January 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.

Active since May 23, 2021PECOS EnrolledAccepts Medicare Assignment

2277 GRAND AVE, BALDWIN, NY 11510(516) 377-5400 Get Directions Write a Review

NPPES record last updated: January 5, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Jan 5, 2026, May 23, 2021 (2 updates tracked since 2021).

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About Mr. Nicholas Edward Sieban Lcsw NPPES

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

MR. NICHOLAS EDWARD SIEBAN LCSW (NPI 1750956728) is an individual clinical provider in Baldwin, New York, licensed in New York (099487) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1750956728

Entity TypeIndividualMale

Primary Taxonomy1041C0700X

Provider Legal NameMR. NICHOLAS EDWARD SIEBANCredential: LCSW

Location Address2277 GRAND AVEBaldwin, NY 11510-3148

Mailing Address244 E Main St Ste 119East Islip, NY 11730-2712 · (516) 587-3136

Phone(516) 377-5400

Sole ProprietorYes

Medical School CMSOtherGraduated 2020

Enumeration DateMay 23, 2021

Last NPPES UpdateJanuary 5, 20262 updates tracked since enumeration

NPPES CertifiedJanuary 5, 2026

✔ NPI 1750956728 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 · 099487

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.

2277 GRAND AVE, Baldwin, NY 11510

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Nicholas Edward Sieban Lcsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8820566862

PECOS Enrollment IDI20260507001855

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11510 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 $67.40 – $203.53

Typical copayment $0.00 (range $16.85 – $50.88)

Most-billed visit code NA

Established Patient

$83.44 typical visit price

range $21.66 – $164.45

Typical copayment $20.86 (range $5.41 – $41.11)

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.

Patient Reviews User submitted

Reviews are submitted by site visitors and approved by a human moderator before publication.

Review by D March 22, 2026

5/5

Working with Mr Nicholas Sieban in an in-person setting has been one of the most grounding and constructive mental health experiences I’ve had. Navigating PTSD, behavioral challenges, and emotional distress is not easy, but his approach made the process feel manageable and, most importantly, worthwhile. He brings a level of professionalism and emotional intelligence that is immediately noticeable.

Provider 5/5 Office Staff 5/5

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Other Providers at the Same Location NPPES 20

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

MRS. KAREN ELIZABETH ZIMMERMAN LMSW

Social Worker (Clinical)