WEST SIDE GI, LLC
NPI 1588938682
Clinic/Center - Ambulatory Surgical in New York, NY
About West Side Gi, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WEST SIDE GI, LLC (NPI 1588938682) is a healthcare organization registered as an ambulatory surgical in New York, New York and active in the NPI registry since March 2012. The organization holds a CLIA Waiver certificate valid through March 26, 2027 and lists Christine Frasco, Director, Human Resources, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
West Side Gi, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
58Medicare enrollment records show 58 clinicians reassign Medicare billing to West Side Gi, LLC, which bills Medicare for the services they deliver. Of these, 24 practice within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 3
Nearest to this location (20)
See all 58New York, NY 10003
New York, NY 10003
Brooklyn, NY 11212
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 33D2040438
Westside Gi LLC · New York, NYAreas of Expertise CMS Part B claims 6
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.
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 West Side Gi, LLC's NPI number?
The NPI number for West Side Gi, LLC is 1588938682. It was assigned to this organization in the NPPES registry on March 7, 2012.
Where is West Side Gi, LLC located?
West Side Gi, LLC is located at 619 W 54th St 8th Floor, New York, NY 10019. The listed phone number is (212) 874-3384.
What is West Side Gi, LLC's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Ambulatory Surgical, with taxonomy code 261QA1903X.
Is West Side Gi, LLC enrolled in Medicare?
Yes. West Side Gi, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through West Side Gi, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 58 clinicians in 3 Medicare specialties reassign their Medicare billing to West Side Gi, 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. The largest specialties are Anesthesiology (56), Interventional Pain Management (1) and Pain Management (1). Of these, 24 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does West Side Gi, LLC hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 33D2040438) is associated with this NPI, valid through March 26, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for West Side Gi, LLC was last updated on January 7, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# West Side Gi, Llc · NPI 1588938682
Ambulatory Surgical organization in New York, New York. Organization record, active in the CMS NPPES registry since March 7, 2012.
## Identity
- **NPI:** 1588938682 (Entity type: Organization)
- **Enumerated:** March 7, 2012
- **Primary specialty:** Clinic/Center - Ambulatory Surgical · taxonomy 261QA1903X
- **Organization subpart:** No
- **Authorized official:** Christine Frasco, DIRECTOR, HUMAN RESOURCES
## Practice location
- **Address:** 619 W 54TH ST, 8TH FLOOR, New York, NY 10019-3545
- **Phone:** (212) 874-3384 · **Fax:** (646) 873-6600
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 58 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Anesthesiology (56), Interventional Pain Management (1), Pain Management (1); 24 practice within 10 miles; [full list](https://npiprofile.com/npi/1588938682/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 7, 2020
- **Other identifiers:** Other A300077871 (NY)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1588938682) · Data from the CMS NPPES public registry.