Rheumatology & Allergy Institute of Connecticut

What Rheumatology & Allergy Institute of Connecticut does

Rheumatology & Allergy Institute of Connecticut, LLC is a private, independent medical practice headquartered at 361 Main Street in Manchester, Connecticut. The practice specializes in adult rheumatology and allergy/immunology, diagnosing and treating chronic autoimmune and inflammatory conditions such as rheumatoid arthritis, lupus, Sjogren's syndrome, vasculitis, scleroderma, connective tissue diseases, osteoporosis, and tendonitis, as well as allergy and immunology conditions including environmental and food allergies, asthma, eczema, hay fever, hives, and immunodeficiency disorders. Patients are adults aged 18 and older who are referred or self-schedule consultations, allergy shots, and therapeutic injections.

The practice operates an integrated clinical model with on-site diagnostic and therapeutic infrastructure that distinguishes it from typical single-modality clinics. Capabilities include digital X-ray, dual-energy X-ray absorptiometry (DXA) for bone density assessment, diagnostic ultrasound, and an infusion center for biologic therapies such as belimumab (Benlysta) for lupus. Barbara Kage, MD, FACR, is certified in rheumatic musculoskeletal ultrasonography and personally performs all ultrasound-guided therapeutic injections, which represents a specialized procedural capability within the practice. Leadership consists of two physicians (Reinhard Kage, MD, Ph.D. and Barbara Kage, MD, FACR) and one physician assistant (Donna Duffy, PA-C).

The business model is a fee-for-service professional services practice, billing through insurance arrangements and direct patient payments. Go-to-market is direct-to-consumer: patients schedule appointments via phone or an online request form on the practice website. The practice also operates a content marketing function through an educational blog with over 60 articles covering treated conditions, and leverages patient testimonials as a top-of-funnel trust signal. No institutional investment, parent company, or partnership arrangements are disclosed, and the practice operates as an independent LLC with no public listing.

Name

Rheumatology & Allergy Institute of Connecticut

Legal name

Rheumatology and Allergy Institute of Connecticut, LLC

Website

https://allergyinstitute.org

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Rheumatology & Allergy Institute of Connecticut is a private medical practice in Manchester, CT, providing adult rheumatology, allergy, and immunology care with on-site diagnostics (X-ray, DXA, ultrasound) and an infusion center. It serves local patients aged 18+ with autoimmune, inflammatory, and allergic conditions under a fee-for-service model.

Ownership category

akta.pro rank

Product category

Rheumatology & Allergy Medical Practice

NAICS

Offices of Physicians (62111), Offices of Physicians (except Mental Health Specialists) (621111), Ambulatory Health Care Services (621)

SIC

Services-Offices & Clinics Of Doctors Of Medicine (8011), Services-Specialty Outpatient Facilities, Nec (8093)

akta.pro industry

PRIMARYHLAKAAAA

Allergy & Immunology Clinics

Healthcare & Life Sciences/Specialist Medical Practice/Allergy & Immunology

SECONDARYHLAKAAAJ

Autoimmune/Immune Dysregulation Specialty Clinics

Healthcare & Life Sciences/Specialist Medical Practice/Allergy & Immunology

SECONDARYHLAKAAAL

Allergy & Immunology Diagnostic Testing Centers (Skin/Challenge/PFT)

Healthcare & Life Sciences/Specialist Medical Practice/Allergy & Immunology

SECONDARYHLAIACAF

Pulmonology & Allergy Specialty Pharmaceuticals

Healthcare & Life Sciences/Pharmaceuticals/Specialty Pharmaceuticals

Keywords

• Rheumatology services
• Allergy treatment
• Immunology care
• Diagnostic imaging
• Infusion therapy

Headquarters

HQ city

Manchester

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Patient Care Services: Fee-for-service medical practice providing rheumatology, allergy, and immunology care. The practice serves rheumatology patients ages 18 and older, treating conditions such as arthritis, osteoporosis, tendonitis, rheumatoid arthritis, lupus, Sjogren's Syndrome, other connective tissue diseases, vasculitis, and other autoimmune inflammatory disorders. Allergy services include treatment for allergies, asthma, eczema, food allergies, insect allergies, hay fever, hives, and immunodeficiency.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Rheumatology & Allergy Institute of Connecticut is a private medical practice in Manchester, CT that provides specialty care in rheumatology and allergy/immunology. The practice offers physician consultations, on-site diagnostic imaging (digital X-ray, DXA bone density, diagnostic ultrasound), and an in-office infusion center for biologic and other IV therapies, serving adult patients with autoimmune, inflammatory, musculoskeletal, and allergic conditions.

Product overview

Rheumatology and Allergy Institute of Connecticut is a full-service rheumatology, allergy, and immunology medical practice providing integrated patient care. The practice operates as a unified service offering combining rheumatology services (arthritis, osteoporosis, rheumatoid arthritis, lupus, Sjogren's Syndrome, connective tissue diseases, vasculitis, scleroderma) with allergy and immunology services (environmental allergies, food allergies, asthma, eczema, immunotherapy). On-site diagnostic capabilities including digital X-ray, DXA bone density scanning, diagnostic ultrasound, and an infusion center complement the clinical services. The practice is led by Reinhard Kage, MD, Ph.D. and Barbara Kage, MD, FACR, with support from Donna Duffy, PA-C.

Differentiator

Problem solved

Functional benefit

Products and services

• Rheumatology Consultations Specialty physician evaluation, diagnosis, and longitudinal management of autoimmune and inflammatory conditions such as rheumatoid arthritis, lupus, psoriatic arthritis, gout, vasculitis, and other connective tissue diseases for adult patients.
• Allergy and Immunology Care Specialty evaluation and treatment of allergic rhinitis, asthma, food and drug allergies, eczema, urticaria, and immune disorders, including allergy testing and immunotherapy planning for adult and adolescent patients.
• On-site Diagnostic Imaging In-office imaging services including digital X-ray, DXA bone density scanning, and diagnostic musculoskeletal ultrasound to support diagnosis and monitoring of rheumatic and bone conditions during the patient visit.
• Infusion Therapy Center On-site infusion services for biologic and IV therapies used in rheumatologic and immunologic conditions, allowing patients to receive treatment in the physician's office rather than a hospital.

Quantifiable outcome

• Patients report high satisfaction with thorough, detailed care and comprehensive diagnostic workups including blood tests and X-rays.
• +1 more outcomes

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators1 record

Recent moves4 records

Expansion highlights4 records

Direct peers

• Connecticut Asthma and Allergy Center: Independent Connecticut allergy and immunology practice offering allergy testing, immunotherapy (allergy shots), and asthma management. Comparable as a direct allergy-focused competitor in the same regional market with overlapping services including immunotherapy and biologic administration.
• Rheumatology Associates of Connecticut: Independent rheumatology specialty practice serving Connecticut patients with autoimmune and musculoskeletal conditions. Comparable as a direct specialty competitor focused on the rheumatology portion of the subject practice's service line.
• Chase Medical Associates: Independent multi-specialty medical practice in Connecticut serving adult patients with a focus on chronic disease management. Comparable as a similarly sized Connecticut independent practice competing for the same adult patient panel and insurance contracts.
• Allergy & Asthma Associates of Connecticut: Independent allergy and asthma practice serving Connecticut patients with testing, immunotherapy, and biologic treatments. Comparable as a directly competing allergy-focused practice offering similar core services including allergy shots and immunology care.

Broad incumbents

• UConn Health: State-supported academic medical center in Farmington, CT offering rheumatology and allergy specialty services alongside research and teaching. Comparable as a Connecticut specialty care competitor with institutional payer leverage and integrated hospital-based services.
• Yale New Haven Health: Major Connecticut academic health system with Yale Medicine rheumatology and allergy/immunology practices across multiple locations. Comparable as a competing specialty care provider in Connecticut with deep referral networks and academic affiliation advantages that an independent practice must compete against.
• Hartford HealthCare: Largest Connecticut-based health system operating multiple hospitals and specialty outpatient clinics, including rheumatology and allergy services. Comparable as a competing provider of adult rheumatology and immunology care in the same Connecticut market, though it operates at vastly greater scale and as a system rather than an independent specialty practice.
• Prospect Medical Holdings: Multi-state health system that operates Connecticut hospital-affiliated specialty clinics including rheumatology and immunology services. Comparable as a system-owned specialty outpatient competitor that leverages hospital referrals to capture independent practices' patient flow.

Emerging players

• AllerVie Health: National network of allergy, asthma, and immunology clinics expanding across multiple U.S. states with consolidated specialty operations. Comparable as a growing specialty platform that competes with independent allergy practices for both patients and clinical talent, signaling potential roll-up pressure on small independent practices.

Regional players

• Starling Physicians: Large Connecticut-based multi-specialty physician group with multiple offices across the state. Comparable as a regional specialty care provider with broader specialty coverage that competes for chronic-disease referrals in the same Hartford-area market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/RheumatologyAndAllergyInstitute

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Rheumatology & Allergy Institute of Connecticut