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LONG ISLAND ARTHRITIS AND RHEUMATISM MEDICAL PC
NPI 1134438823
Internal Medicine - Rheumatology in Massapequa, NY

Active since September 29, 2010
200 BOUNDARY AVE, SUITE 200, MASSAPEQUA, NY 11758(516) 439-0380(631) 271-9155 Get Directions Write a Review

NPPES record last updated: September 29, 2010. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Long Island Arthritis And Rheumatism Medical Pc NPPES

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

LONG ISLAND ARTHRITIS AND RHEUMATISM MEDICAL PC (NPI 1134438823) is a healthcare organization registered as a rheumatology in Massapequa, New York and active in the NPI registry since September 2010. The organization lists Olena Guzhva, Owner, as its authorized official.

NPPES Registry Identity

NPI1134438823
Entity TypeOrganization
Primary Taxonomy207RR0500X
Legal Business NameLONG ISLAND ARTHRITIS AND RHEUMATISM MEDICAL PC
Location Address200 BOUNDARY AVE, SUITE 200Massapequa, NY 11758-1152
Mailing AddressPo Box 222202Great Neck, NY 11022-2202 · (516) 439-0380 · Fax (631) 271-9155
Phone(516) 439-0380
Fax(631) 271-9155
Organization SubpartNo
Authorized OfficialOlena GuzhvaOwner · (516) 439-0380
Enumeration DateSeptember 29, 2010
✔ NPI 1134438823 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in NY · 251871
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
200 BOUNDARY AVE, Massapequa, NY 11758
Open in Google Maps ↗

Other Identifiers 1

Other251871NY · License

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)

Long Island Arthritis And Rheumatism Medical Pc 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 Long Island Arthritis And Rheumatism Medical PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Olena Guzhva, MD
Rheumatology
NPI 1174779359
60 QUEENS ST STE 100
Syosset, NY 11791
(516) 277-8490
✔ PECOS✔ Accepts Medicare7.7 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 Long Island Arthritis And Rheumatism Medical PC's NPI number?

The NPI number for Long Island Arthritis And Rheumatism Medical PC is 1134438823. It was assigned to this organization in the NPPES registry on September 29, 2010.

Where is Long Island Arthritis And Rheumatism Medical PC located?

Long Island Arthritis And Rheumatism Medical PC is located at 200 Boundary Ave Suite 200, Massapequa, NY 11758. The listed phone number is (516) 439-0380.

What is Long Island Arthritis And Rheumatism Medical PC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Long Island Arthritis And Rheumatism Medical PC enrolled in Medicare?

Yes. Long Island Arthritis And Rheumatism Medical PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Long Island Arthritis And Rheumatism Medical PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Rheumatology) reassigns their Medicare billing to Long Island Arthritis And Rheumatism Medical PC. 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 Long Island Arthritis And Rheumatism Medical PC was last updated on September 29, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.