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RHEUMATOLOGY SPECIALISTS OF CONNECTICUT, INC.
NPI 1720534811
Internal Medicine - Rheumatology in South Windsor, CT

Active since August 29, 2016
1504 SULLIVAN AVE, SOUTH WINDSOR, CT 06074(860) 432-8400(860) 432-8430 Get Directions Write a Review

NPPES record last updated: April 23, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Apr 23, 2026, Jun 9, 2021, Apr 22, 2021 and 3 more (6 updates tracked since 2016).

About Rheumatology Specialists Of Connecticut, Inc. NPPES

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

RHEUMATOLOGY SPECIALISTS OF CONNECTICUT, INC. (NPI 1720534811) is a healthcare organization registered as a rheumatology in South Windsor, Connecticut and active in the NPI registry since August 2016. The organization maintains 2 additional practice locations and lists Timothy Quan, Owner, as its authorized official.

NPPES Registry Identity

NPI1720534811
Entity TypeOrganization
Primary Taxonomy207RR0500X
Legal Business NameRHEUMATOLOGY SPECIALISTS OF CONNECTICUT, INC.
Location Address1504 SULLIVAN AVESouth Windsor, CT 06074-2711
Mailing Address1504 Sullivan AveSouth Windsor, CT 06074-2711 · (860) 432-8400 · Fax (860) 432-8430
Phone(860) 432-8400
Fax(860) 432-8430
Organization SubpartNo
Authorized OfficialTimothy QuanOwner · (860) 432-8400
Enumeration DateAugust 29, 2016
Last NPPES UpdateApril 23, 20266 updates tracked since enumeration
NPPES CertifiedApril 23, 2026
✔ NPI 1720534811 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in CT · 037380
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.
Also ListedNon-Pharmacy Dispensing SiteTaxonomy 332900000X
1504 SULLIVAN AVE, South Windsor, CT 06074
Open in Google Maps ↗

Secondary Practice Locations 2

Location 12701 Tamarack AveSouth Windsor, CT 06074-5562 · Phone (860) 432-8400
Location 2399 Farmington Ave Ste Ll2Farmington, CT 06032-1936 · Phone (860) 432-8400 · Fax (860) 432-8430

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

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 Specialists Of Connecticut, Inc. 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 Rheumatology Specialists Of Connecticut, Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Timothy Quan, M.D.
Rheumatology
NPI 1649227208
1504 SULLIVAN AVE
South Windsor, CT 06074
(860) 432-8400
✔ PECOS✔ Accepts MedicareSame address

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 Rheumatology Specialists Of Connecticut, Inc.'s NPI number?

The NPI number for Rheumatology Specialists Of Connecticut, Inc. is 1720534811. It was assigned to this organization in the NPPES registry on August 29, 2016.

Where is Rheumatology Specialists Of Connecticut, Inc. located?

Rheumatology Specialists Of Connecticut, Inc. is located at 1504 Sullivan Ave, South Windsor, CT 06074. The listed phone number is (860) 432-8400.

What is Rheumatology Specialists Of Connecticut, Inc.'s specialty?

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

Is Rheumatology Specialists Of Connecticut, Inc. enrolled in Medicare?

Yes. Rheumatology Specialists Of Connecticut, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Rheumatology Specialists Of Connecticut, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Rheumatology) reassigns their Medicare billing to Rheumatology Specialists Of Connecticut, Inc.. 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.

What insurance does Rheumatology Specialists Of Connecticut, Inc. accept?

Health plans from Anthem Blue Cross and Blue Shield list Rheumatology Specialists Of Connecticut, Inc. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Rheumatology Specialists Of Connecticut, Inc. was last updated on April 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.