Middlesex Orthopedic Surgeons

What Middlesex Orthopedic Surgeons does

Middlesex Orthopedic & Spine Associates (MOSA), operating under the legacy name Middlesex Orthopedic Surgeons, is a multi-specialty orthopedic medical practice headquartered in Middletown, Connecticut, and serving patients across Middlesex County and surrounding areas through 11 office locations. The practice delivers comprehensive musculoskeletal care across nine subspecialties: sports medicine, hip and knee replacement, spine, hand and upper extremity, foot and ankle, physiatry, pain management, and orthopedic oncology, augmented by diagnostic imaging (MRI, X-ray, EMG/NCS), ultrasound-guided injections, orthobiologics, urgent orthopedic walk-in care, and physical and occupational therapy. Clinical technology includes computer-navigated robotic-assisted joint replacement, minimally invasive and wide-awake surgical techniques, and the recently introduced TOUCH CMC 1 thumb joint replacement, for which MOSA is the first practice in New England.

The practice operates as a professional services organization billing through insurance, workers' compensation, and personal injury channels, with patient acquisition driven by physician referrals (including from Middlesex Hospital and Midstate Medical Center), community partnerships with athletic organizations such as Wesleyan University Athletics and Guilford High School, online scheduling, and content marketing featuring patient testimonials and physician expertise. Its clinical staff includes at least 15 fellowship-trained physicians, supported by physician assistants, nurse practitioners, physical therapists, and occupational therapists.

MOSA was formed through the merger of Middlesex Orthopedic Surgeons and Orthopedic Associates of Middletown, and the practice operates as a division of Orthopaedic & Neurosurgery Specialists under the management services organization ONS MSO, LLC d/b/a Spire Orthopedic Partners. The practice is privately held, with no disclosed venture, private equity, or public ownership, and is recognized as the largest orthopedic practice in Middlesex County, holding 15 Castle Connolly Top Doctors and Rising Stars designations in both 2025 and 2026.

Name

Middlesex Orthopedic Surgeons

Legal name

ONS MSO, LLC d/b/a Spire Orthopedic Partners

Website

https://middlesexortho.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Middlesex Orthopedic & Spine Associates (MOSA) is a multi-specialty orthopedic practice operating 11 locations across Middlesex County, Connecticut, delivering sports medicine, joint replacement, spine, hand, foot/ankle, pain management, imaging, and rehabilitation services to a broad adult patient population.

Ownership category

akta.pro rank

Product category

Orthopedic Healthcare Services

NAICS

Offices of Physicians (62111), Offices of Physical, Occupational and Speech Therapists, and Audiologists (621340)

SIC

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

akta.pro primary industry

General Orthopedics (HLAKALAA)

akta.pro secondary industries

Orthopedic Surgery (Operative Orthopedics) (HLAKALAC), Spine (Orthopedic Spine) (HLAKALAE), Hand & Upper Extremity Therapy (OT/CHT) (HSADAIAH)

Keywords

• Orthopedic medical services
• Joint replacement surgery
• Sports medicine care
• Spine surgery services
• Physical therapy rehab

Headquarters

HQ city

Middletown

HQ country

United States

HQ region

North America

Offices11 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Clinical Patient Care Services: Revenue generated from patient consultations, examinations, diagnostic services (MRI, X-ray, EMG/NCS), and surgical procedures across multiple orthopedic subspecialties including sports medicine, joint replacement, spine, hand, foot/ankle, and pain management.
2. Physical and Occupational Therapy: Revenue from rehabilitation services including physical therapy, occupational therapy, and specialized rehabilitation programs for post-surgical recovery and injury rehabilitation.
3. Workers' Compensation and Personal Injury Services: Specialized orthopedic care and rehabilitation services billed through workers' compensation and personal injury insurance for work-related injuries and accident victims.
4. Urgent Orthopedic Care: Walk-in and same-day orthopedic urgent care services for acute injuries, extended to Monday through Friday 8:00 am to 5:00 pm at the Middletown location.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Middlesex Orthopedic & Spine Associates (MOSA) is a multi-specialty orthopedic medical practice that provides diagnostic imaging, surgical, non-surgical, and rehabilitation services across nine subspecialties including sports medicine, hip and knee replacement, spine, hand and upper extremity, foot and ankle, physiatry, pain management, and orthopedic oncology. The practice also offers walk-in urgent orthopedic care, physical and occupational therapy, MRI, X-ray, ultrasound-guided injections, orthobiologics, and workers' compensation/personal injury services across multiple office locations in Connecticut.

Product overview

Middlesex Orthopedic & Spine Associates operates as a multi-specialty orthopedic practice offering a comprehensive range of musculoskeletal healthcare services. The practice provides diagnostic imaging (MRI, X-ray, EMG/Nerve Conduction Studies), treatment services (Urgent Ortho, Physical/Occupational Therapy, Ultrasound-Guided Injections, Orthobiologics), and surgical specialties covering Sports Medicine, Hip and Knee Replacement, Spine, Hand and Upper Extremity, Foot and Ankle, Physiatry, Pain Management, and Orthopedic Oncology. The practice has multiple locations across Connecticut and operates as a division of Orthopaedic & Neurosurgery Specialists under Spire Orthopedic Partners.

Differentiator

Problem solved

Functional benefit

Brands

• Urgent Ortho: Urgent orthopedic care services with extended hours at the Middletown location

Products and services

• Urgent Ortho

Quantifiable outcome

• Patients able to return to active lifestyles including sports, skiing, and fitness instruction after orthopedic surgery
• +2 more outcomes

Named customers5 records

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Wesleyan University AthleticscoreStrategic or Co-development PartnerOfficial orthopedic and spine care provider for Wesleyan University Cardinals athletics program, providing sports medicine coverage and injury care for student-athletes.
• Guilford High SchoolcoreStrategic or Co-development PartnerOfficial orthopedic partner for Guilford High School athletics, providing sports medicine services and injury treatment for student-athletes.
• North Shore GymnasticsminorStrategic or Co-development PartnerSports medicine partner providing orthopedic care and injury prevention services for gymnastics athletes.
• Midstate Medical CentercoreImplementation/ SI/ Consulting PartnerHospital partner where surgical procedures including hip replacements are performed, providing surgical facilities and post-operative care coordination.
• Middlesex HospitalcoreImplementation/ SI/ Consulting PartnerRegional hospital partner providing referrals, diagnostic services, and surgical facilities for orthopedic patients.
• Spire Orthopedic PartnerscoreOthersONS MSO, LLC d/b/a Spire Orthopedic Partners is the parent company and management services organization overseeing the practice operations, marketing, compliance, and business functions.
• Orthopaedic & Neurosurgery SpecialistscoreOthersMOSA is a division of Orthopaedic & Neurosurgery Specialists, part of the Spire Orthopedic Partners network.

Scale indicators4 records

Recent moves3 records

Expansion highlights6 records

Direct peers

• OrthoVirginia: Multi-subspecialty orthopedic physician group with multiple locations, on-site MRI and physical therapy, and orthopedic urgent care. Closely comparable to MOSA in scale, integrated service-line structure, and regional physician-group operating model.
• Rothman Orthopaedic Institute: Large multi-subspecialty orthopedic practice group operating across the Mid-Atlantic with fellowship-trained surgeons, on-site imaging, therapy, and urgent orthopedic care. Directly comparable to MOSA in service breadth, physician-ownership-driven MSO model, and sports medicine partnerships.
• Twin Cities Orthopedics: Large multi-subspecialty orthopedic group with subspecialized surgeons, urgent care, imaging, and rehabilitation across the Minneapolis-St. Paul metro. Directly comparable to MOSA in its combination of general orthopedics plus subspecialty depth and vertically integrated ancillaries.
• The Centers for Advanced Orthopaedics: Multi-subspecialty orthopedic group formed by the merger of multiple regional practices in the Mid-Atlantic. Directly comparable to MOSA's merger-based scale strategy, subspecialty coverage model, and on-site ancillary services.

Broad incumbents

• Yale Medicine Department of Orthopaedics: Academic orthopedic department at Yale New Haven Hospital offering subspecialty care, sports medicine, and joint replacement across Connecticut. Overlaps directly with MOSA in subspecialty offerings and competes for complex referrals in the same geography.
• Hospital for Special Surgery (HSS): Nationally recognized orthopedic specialty hospital with deep subspecialty expertise in joint replacement, sports medicine, and spine. Comparable to MOSA's subspecialty-focused model but operates as a destination academic specialty center rather than a regional community practice.
• Hartford HealthCare Bone & Joint Institute: Hospital-affiliated orthopedic service line across central Connecticut offering joint replacement, sports medicine, spine, and hand surgery. Comparable to MOSA's broad orthopedic service mix but competes from a hospital-employed physician model rather than private practice.

Regional players

• Connecticut Orthopaedic Specialists: Multi-subspecialty orthopedic practice serving southern Connecticut with locations, on-site imaging, and orthopedic urgent care. Operates in the same Connecticut geography as MOSA and competes for the same patient base across multiple subspecialties.
• New England Baptist Hospital Orthopedics: Boston-based specialty orthopedic hospital with a regional referral base across New England for joint replacement and sports medicine. Comparable subspecialty depth to MOSA and draws patients from Connecticut for complex orthopedic cases.

Others

• Spire Orthopedic Partners: Management services organization that is the parent entity of MOSA and other affiliated orthopedic practices. Directly connected to MOSA as the operating parent and a relevant reference for the multi-practice MSO model underlying MOSA's structure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/mxorthoandspineassociates
• LinkedInlinkedin.com/company/middlesex-orthopedic-surgeons
• Instagraminstagram.com/middlesexortho
• Xx.com/MiddlesexOrtho

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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

Frequently asked questions about Middlesex Orthopedic Surgeons