RHEUMATOLOGY ASSOCIATES OF LONG ISLAND, LLP
NPI 1457520140
Specialist in Melville, NY
About Rheumatology Associates Of Long Island, Llp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RHEUMATOLOGY ASSOCIATES OF LONG ISLAND, LLP (NPI 1457520140) is a healthcare organization registered as a specialist in Melville, New York and active in the NPI registry since February 2008. The organization holds an CLIA Accreditation certificate valid through February 4, 2027 and lists Lynette Byrnes, Business Administrator, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 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)
Rheumatology Associates Of Long Island, Llp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
13Medicare enrollment records show 13 clinicians reassign Medicare billing to Rheumatology Associates Of Long Island, LLP, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.
Clinicians by Medicare Specialty 3
Clinicians, nearest first (13)
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 Accreditation 33D0919928
Rheumatology Associates Of Long Island LLP · Melville, NYFrequently 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 Rheumatology Associates Of Long Island, LLP's NPI number?
The NPI number for Rheumatology Associates Of Long Island, LLP is 1457520140. It was assigned to this organization in the NPPES registry on February 27, 2008.
Where is Rheumatology Associates Of Long Island, LLP located?
Rheumatology Associates Of Long Island, LLP is located at 1895 Walt Whitman Rd, Melville, NY 11747. The listed phone number is (631) 249-9525.
What is Rheumatology Associates Of Long Island, LLP's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Rheumatology Associates Of Long Island, LLP enrolled in Medicare?
Yes. Rheumatology Associates Of Long Island, LLP is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Rheumatology Associates Of Long Island, LLP?
According to the CMS Revalidation Reassignment List (October 2026 release), 13 clinicians in 3 Medicare specialties reassign their Medicare billing to Rheumatology Associates Of Long Island, LLP. 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 Rheumatology (10), Internal Medicine (2) and Nurse Practitioner (1). Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Rheumatology Associates Of Long Island, LLP hold a CLIA laboratory certificate?
Yes. A Certificate of Accreditation (number 33D0919928) is associated with this NPI, valid through February 4, 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 Rheumatology Associates Of Long Island, LLP was last updated on February 27, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Rheumatology Associates Of Long Island, Llp · NPI 1457520140
Specialist organization in Melville, New York. Organization record, active in the CMS NPPES registry since February 27, 2008.
## Identity
- **NPI:** 1457520140 (Entity type: Organization)
- **Enumerated:** February 27, 2008
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** Lynette Byrnes, BUSINESS ADMINISTRATOR
## Practice location
- **Address:** 1895 WALT WHITMAN RD, Melville, NY 11747-3031
- **Phone:** (631) 249-9525 · **Fax:** (631) 420-1526
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 13 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Rheumatology (10), Internal Medicine (2), Nurse Practitioner (1); 1 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 27, 2008
- **Other identifiers:** Medicare PIN W86593 (NY); Medicaid 02501664 (NY)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1457520140) · Data from the CMS NPPES public registry.