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KIRSCHENBAUM & SIELER LLC
NPI 1629885264
Orthopaedic Surgery - Hand Surgery in East Brunswick, NJ

Active since December 17, 2024
557 CRANBURY ROAD, SUITE 10, EAST BRUNSWICK, NJ 08816(732) 238-8800(732) 238-8246 Get Directions Write a Review

NPPES record last updated: December 15, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 15, 2025, Dec 17, 2024 (2 updates tracked since 2024).

About Kirschenbaum & Sieler Llc NPPES

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

KIRSCHENBAUM & SIELER LLC (NPI 1629885264) is a healthcare organization registered as a hand surgery in East Brunswick, New Jersey and active in the NPI registry since December 2024. The organization lists David Kirschenbaum, Owner, as its authorized official.

NPPES Registry Identity

NPI1629885264
Entity TypeOrganization
Primary Taxonomy207XS0106X
Legal Business NameKIRSCHENBAUM & SIELER LLC
Location Address557 CRANBURY ROAD, SUITE 10East Brunswick, NJ 08816
Mailing Address557 Cranbury Road, Suite 10East Brunswick, NJ 08816 · (732) 238-8800 · Fax (732) 238-8246
Phone(732) 238-8800
Fax(732) 238-8246
Organization SubpartNo
Authorized OfficialDavid KirschenbaumOwner · (732) 238-8800
Enumeration DateDecember 17, 2024
Last NPPES UpdateDecember 15, 20252 updates tracked since enumeration
NPPES CertifiedDecember 15, 2025
✔ NPI 1629885264 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Hand SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207XS0106X
Definition
An orthopaedic surgeon trained in the investigation, preservation and restoration by medical, surgical and rehabilitative means of all structures of the upper extremity directly affecting the form and function of the hand and wrist.
557 CRANBURY ROAD, East Brunswick, NJ 08816
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kirschenbaum & Sieler Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Kirschenbaum & Sieler LLC, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

David Kirschenbaum, M.D.
Orthopedic Surgery
NPI 1639274061
2186 STATE ROUTE 27 SUITE 1A
North Brunswick, NJ 08902
(732) 422-1222
✔ PECOS✔ Accepts Medicare5.8 mi
Shawn Sieler, M.D.
Orthopedic Surgery
NPI 1457446916
2186 STATE HIGHWAY 27 SUITE 1A
North Brunswick, NJ 08902
(732) 422-1222
✔ PECOS✔ Accepts Medicare5.8 mi

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

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 Kirschenbaum & Sieler LLC's NPI number?

The NPI number for Kirschenbaum & Sieler LLC is 1629885264. It was assigned to this organization in the NPPES registry on December 17, 2024.

Where is Kirschenbaum & Sieler LLC located?

Kirschenbaum & Sieler LLC is located at 557 Cranbury Road Suite 10, East Brunswick, NJ 08816. The listed phone number is (732) 238-8800.

What is Kirschenbaum & Sieler LLC's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Hand Surgery, with taxonomy code 207XS0106X.

Is Kirschenbaum & Sieler LLC enrolled in Medicare?

Yes. Kirschenbaum & Sieler LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Kirschenbaum & Sieler LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Orthopedic Surgery, reassign their Medicare billing to Kirschenbaum & Sieler LLC. A 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 the clinician's services. Of these, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Kirschenbaum & Sieler LLC was last updated on December 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.