SARAH SIU MD PLLC
NPI 1144975947
Clinic/Center - Medical Specialty in Brooklyn, NY
About Sarah Siu Md Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SARAH SIU MD PLLC (NPI 1144975947) is a healthcare organization registered as a medical specialty in Brooklyn, New York and active in the NPI registry since February 2022. The organization lists Sarah Siu, Chief Executive Member, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Sarah Siu Md Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Sarah Siu MD PLLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Sarah Siu MD PLLC's NPI number?
The NPI number for Sarah Siu MD PLLC is 1144975947. It was assigned to this organization in the NPPES registry on February 21, 2022.
Where is Sarah Siu MD PLLC located?
Sarah Siu MD PLLC is located at 5318 7th Ave, Brooklyn, NY 11220. The listed phone number is (212) 858-9828.
What is Sarah Siu MD PLLC's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.
Is Sarah Siu MD PLLC enrolled in Medicare?
Yes. Sarah Siu MD PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Sarah Siu MD PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Dermatology) reassigns their Medicare billing to Sarah Siu MD PLLC. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Sarah Siu MD PLLC was last updated on February 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Sarah Siu Md Pllc · NPI 1144975947
Medical Specialty organization in Brooklyn, New York. Organization record, active in the CMS NPPES registry since February 21, 2022.
## Identity
- **NPI:** 1144975947 (Entity type: Organization)
- **Enumerated:** February 21, 2022
- **Primary specialty:** Clinic/Center - Medical Specialty · taxonomy 261QM2500X
- **Organization subpart:** No
- **Authorized official:** Sarah Siu, CHIEF EXECUTIVE MEMBER
## Practice location
- **Address:** 5318 7TH AVE, Brooklyn, NY 11220-3121
- **Phone:** (212) 858-9828
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Dermatology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 21, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1144975947) · Data from the CMS NPPES public registry.