Radiology Partners

What Radiology Partners does

Radiology Partners is a national, physician-led and physician-owned radiology practice founded in 2012 and headquartered (with its Mosaic Clinical Technologies subsidiary) in Nashville, Tennessee. The company operates through more than 80 affiliated local practices, deploying over 4,000 radiologists to serve more than 3,400 hospitals and healthcare facilities across 30+ U.S. states, reading 55+ million imaging studies annually. Its vRad subsidiary is the largest teleradiology services provider in the U.S., with 688 radiologists reading 8.9 million studies per year. The firm reports a 99.5% client retention rate and accounts for approximately 28% of all resolved No Surprises Act IDR line-item claims nationally.

Radiology Partners generates revenue through multiple streams: professional radiology interpretation services billed to hospitals, clinics, and imaging centers under long-term enterprise contracts; payor contracting and network access arrangements with major insurers (Cigna, Florida Blue, BCBS Tennessee, BCBS Arizona); practice partnership and management services for affiliated practices; subscription-based technology commercialization through its wholly-owned subsidiary Mosaic Clinical Technologies (MosaicOS and Mosaic Reporting); and out-of-network payment recovery via the No Surprises Act IDR process (136,784 disputes initiated Jan-Jul 2024, with median prevailing offers at 610-631% of qualifying payment amounts).

The company's core technology stack is centered on MosaicOS, a fully cloud-native and AI-native operating system for radiology built on AWS HealthImaging infrastructure and powered by proprietary vision-language foundation models developed by Cognita Imaging — acquired for $80 million in November 2025. MosaicOS integrates diagnostic technologies, AI-powered reporting (Mosaic Reporting), natural dictation, and structured reporting, with adjunct modules including Cognita CXR (first FDA Breakthrough Device Designation for a generative vision-language model in radiography), Merlin (abdominal CT vision-language model), Mosaic Drafting, and Mammo Enhance Heart. The company has partnerships with Aidoc (clinical AI), AWS HealthImaging (cloud infrastructure), IKS Health (workflow tools), Stanford Radiology's AIDE Lab (AI safety research), RADPAIR (generative AI), and DataFirst (data migration), and runs a recruiting and community motion anchored on the Transform, SOAR, and RP Night Out programs. Radiology Partners is privately held, has raised over $1.4 billion in disclosed growth equity (plus additional SEC-registered exempt offerings), and is led by co-founders Rich Whitney (Chairman and CEO) and Dr. Anthony Gabriel (President and COO).

Name

Radiology Partners

Legal name

Radiology Partners, Inc.

Website

https://radpartners.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Radiology Partners is a national, physician-led radiology practice operating through 4,000+ radiologists and 80+ affiliated practices to serve 3,400+ hospitals and healthcare facilities across 30+ U.S. states, with an AI-native technology stack (MosaicOS) and proprietary vision-language foundation models.

Ownership category

akta.pro rank

Headquarters

HQ city

El Segundo

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Radiology Services: Core revenue stream from interpretive diagnostic imaging services delivered to hospitals, clinics, imaging centers, and referring physicians across 3,400+ healthcare facilities. Long-term enterprise contracts with hospitals and health systems; payor contracting for in-network access. Recurring service-based revenue.
2. Healthcare Technology and AI Services: Revenue from Mosaic Clinical Technologies' MosaicOS platform, Mosaic Reporting, and Cognita Imaging AI solutions sold to external healthcare organizations. SaaS-style platform offering powered by proprietary foundation models.
3. Teleradiology Services: Revenue from vRad teleradiology platform, the largest teleradiology services provider in the U.S., employing over 500 physicians and reading 8.9 million studies annually. Commercial offering to external practices (in addition to internal use).
4. Practice Partnership and Practice Management Support: Revenue from acquired and affiliated radiology practices, including billing, finance, payor contracting, IT infrastructure, clinical support, leadership development, and recruitment services provided to local practices.
5. No Surprises Act IDR Dispute Resolution Revenue: Revenue tied to out-of-network payment disputes initiated under the federal No Surprises Act Independent Dispute Resolution process. RP initiated 136,784 disputes between January and July 2024, achieving median prevailing offers at 631% of QPA in Q1 2024 and 610% in Q2 2024 (Georgetown analysis).

Pricing tiers

Go-to-market motion5 records

Distribution channels5 records

Marketing channels8 records

Core offering

Radiology Partners is a national, physician-led radiology practice that delivers diagnostic imaging interpretation services to more than 3,400 hospitals, clinics, and imaging centers across the U.S. through affiliated local practices. It also commercializes MosaicOS, a cloud-native and AI-native operating system for radiology (developed by its Mosaic Clinical Technologies subsidiary), along with AI-native reporting (Mosaic Reporting) and the vRad teleradiology platform.

Product overview

Radiology Partners operates a platform-plus-modules architecture centered on MosaicOS, a fully cloud-native and AI-native operating system developed by Mosaic Clinical Technologies, its wholly-owned technology and AI services subsidiary. MosaicOS is the foundation upon which multiple AI-powered modules are delivered, including Mosaic Reporting (real-time AI-native radiology reporting), Cognita CXR (generative vision-language AI for chest X-ray interpretation with FDA Breakthrough Device Designation), Merlin (vision-language model for abdominal CT), Mosaic Drafting (AI-generated preliminary reports), and Mammo Enhance Heart (AI-enabled breast cancer and cardiovascular screening). MosaicOS also serves as the integration backbone for the Rad to Rad Learning peer-learning content and Clinical Value Team clinical pathways. Beyond the MosaicOS platform, Radiology Partners offers its core clinical radiology services through affiliated local practices, the AI-integrated vRad teleradiology platform, and large-scale Aidoc clinical AI deployments across its network spanning 30 states with access to over 55 million annual imaging studies.

Differentiator

Problem solved

Functional benefit

Brands

• Mosaic Clinical Technologies™: Wholly-owned technology and AI services division of Radiology Partners, operating the MosaicOS imaging intelligence platform and home to the Cognita Imaging AI foundation models.
• MosaicOS™
• Mosaic Reporting™
• Cognita Imaging (Cognita CXR / Cognita Chest X-Ray)
• vRad (Virtual Radiologic)
• Matrix at RP

Products and services

• Professional Radiology Services Diagnostic imaging interpretation, 24/7 subspecialty coverage, follow-up programs, peer learning, value-based care delivery, care coordination, payor contracting, billing, IT infrastructure and recruitment services provided to hospitals, health systems, and independent radiology practices across the U.S.
• MosaicOS A proprietary, fully cloud-native and AI-native operating system for radiology that integrates diagnostic technologies, AI-powered tools, and smart workflows into a single scalable solution. Sold to external healthcare organizations by Mosaic Clinical Technologies.
• Mosaic Reporting AI-native radiology reporting solution that constructs reports in real time as radiologists interpret medical images, organizing findings, structuring reports, and enabling targeted edits via intelligent extraction from natural dictation.
• vRad Teleradiology Platform AI-enabled teleradiology platform providing real-time analytics for radiology groups; the largest teleradiology services provider in the U.S. with 500+ physicians reading 8.9 million studies annually. Offered commercially to external practices in addition to internal deployment.
• Mammo Enhance Heart AI-enabled women's preventative health program offering combined breast cancer and cardiovascular disease risk screening.
• Cognita CXR Generative vision-language AI model that interprets chest X-rays and generates comprehensive preliminary reports integrated into existing radiology workflows. First generative VLM in radiography to receive FDA Breakthrough Device Designation.

Quantifiable outcome

• Up to 52% increased detection rates from Cognita AI models
• +8 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability11 records

Feature9 records

Partnerships

17 partnerships are on record, tiered minor, flagship and core.

• Larry Hogan (Former Maryland Governor; Board Director)minorOthers · 1 May 2026Former Maryland Governor Larry Hogan (62nd governor, 2015-2023; chaired National Governors Association) appointed to Board of Directors, bringing public health expertise, healthcare policy perspective, and personal experience as a cancer survivor.
• Stanford Radiology AI Development and Evaluation (AIDE) LabflagshipStrategic or Co-development Partner · 28 January 2026Strategic partnership to develop AI assessment and monitoring methods for medical imaging. Combines Stanford's academic rigor with RP's operational AI experience across thousands of clinical sites; research conducted at Stanford involves RP radiologists and data science teams. Plans to publish peer-reviewed findings.
• DataFirstcoreTechnology or Integration · 1 December 2025Strategic partnership to support data migration and expansion efforts across the US healthcare radiology sector. DataFirst provides exclusive data migration services and showcased new imaging workflow technology at RSNA 2025.
• Florida Blue (Mori, Bean and Brooks)minorChannel Partner/ Reseller/ Distributor · 20 November 2025MBB (RP-affiliated practice) extended agreement with Florida Blue to enhance statewide access to radiology services across Florida.
• Cognita Imaging Inc.flagshipStrategic or Co-development Partner · 18 November 2025Mosaic Clinical Technologies (RP's technology and AI division) acquired Cognita Imaging, a Stanford researcher-founded stealth-mode pioneer in vision-language models for radiology, for $80 million. Early validation across 100+ radiologists and 95,000 X-rays and head CTs showed up to 52% increased detection rates, 4x reduction in diagnostic errors, and up to 76% read-time savings. Cognita now powers MosaicOS and Mosaic Reporting as the AI division of Mosaic Clinical Technologies.
• Cigna (Empire State Radiology)minorChannel Partner/ Reseller/ Distributor · 15 November 2025In-network agreement with Cigna for Empire State Radiology, an RP-affiliated practice, beginning November 15, 2025. Improves access for patients and hospitals in Rockville Centre, New York.
• John Chiminski (Board Director)minorOthers · 29 July 2025John Chiminski appointed to Radiology Partners' Board of Directors (July 29, 2025).
• Envision HealthcarecoreChannel Partner/ Reseller/ Distributor · 30 April 2025April 30, 2025 announcement that RP would support continuity of patient care, client service, and team stability in Envision Healthcare's radiology services transition.
• Cigna Healthcare (Singleton Associates)minorChannel Partner/ Reseller/ Distributor · 23 April 2025Multi-year agreement to expand access to radiology care across Texas via Singleton Associates, P.A., an RP-affiliated practice.
• RADPAIRcoreStrategic or Co-development Partner · 2 December 2024Strategic partnership focused on building intelligent connections and generative AI solutions for radiology to address the specialty's critical capacity challenges. Combines clinical expertise with generative AI product development.
• IKS HealthcoreTechnology or Integration · 1 October 2024October 2024 collaboration to deploy AI-driven workflow tools for over 3,900 radiologists across the RP network.
• Amazon Web Services (AWS) - HealthImagingcoreTechnology or Integration · 27 November 2023Radiology Partners launched an AI integration platform with AWS HealthImaging, addressing fragmented AI adoption by providing a unified platform for rapid deployment of AI. Provides cloud-native medical imaging data infrastructure for MosaicOS.
• BlueCross BlueShield of Tennessee (Radiology Alliance)minorChannel Partner/ Reseller/ Distributor · 26 September 2023Multi-year agreement finalized September 26, 2023 between BlueCross BlueShield of Tennessee and Radiology Alliance (RP-affiliated practice).
• Blue Cross and Blue Shield of Arizona (Sonoran Radiology)minorChannel Partner/ Reseller/ Distributor · 3 May 2023New contract agreement signed May 3, 2023 between Sonoran Radiology (RP-affiliated practice) and Blue Cross and Blue Shield of Arizona.
• Dr. Andrew Litt (Board Director)minorOthers · 1 May 2023Dr. Andrew Litt added to Radiology Partners Board of Directors (May 2023), supporting continued emphasis on elevating radiologists at every level of leadership.
• AidoccoreTechnology or Integration · 6 April 2021RP selected Aidoc as its AI partner to accelerate the adoption of AI as the standard of care in radiology. Described as the largest clinical deployment of AI in healthcare at the time, affecting as many as 40 million annual exams across 30 states. Collaboration includes new clinical programs, AI-based radiology services, real-world data, post-market surveillance, marketing, distribution, and physician education.
• RAD-AID InternationalminorGTM or Marketing Partner · 10 March 2020Global health partnership announced March 10, 2020. Supports medically underserved communities at home and abroad; includes RP radiologist participation in RAD-AID Tanzania and Guyana service trips.

Scale indicators16 records

Recent moves7 records

Expansion highlights6 records

Regional players

• Affidea: European leader in advanced diagnostic imaging and outpatient services, operating in 15 countries. Operates a similar multi-modality imaging and teleradiology model; relevant as a regional peer showing how scaled radiology platforms expand across borders.
• I-MED Radiology Network: Largest diagnostic imaging network in Australia, mentioned in the source data as a comparator. Operates a comparable hospital-contracted, AI-adopting radiology services model outside the U.S.

Direct peers

• Envision Healthcare: Large physician services company historically providing radiology staffing to hospitals. RP directly supported Envision's radiology services transition in April 2025, highlighting them as a structurally comparable — and historically competitive — enterprise radiology services peer.
• Akumin: U.S. operator of outpatient diagnostic imaging centers and related radiology services. Directly comparable business model (fixed-site imaging, teleradiology, and hospital contracts), and a relevant peer in the consolidation of fragmented U.S. radiology.
• US Radiology Specialists: PE-backed national radiology practice built through practice partnerships across multiple U.S. states. Closest direct competitor to Radiology Partners in the physician-led, multi-state radiology services model, with similar enterprise hospital contract motion.
• RadNet: Public U.S. operator of outpatient diagnostic imaging centers and radiology services with deep AI investments (including DeepHealth and iCAD partnerships). Comparable in providing imaging interpretation at scale, although more outpatient-centric and publicly listed.
• Rayus Radiology: National outpatient imaging center operator and radiology services provider affiliated with Wellspring Capital. Direct competitor in scaling radiology services through acquisitions and partnerships, with a comparable focus on subspecialty reads and AI-enabled workflow.

Emerging players

• Aidoc: AI-native clinical decision support company and RP's largest AI deployment partner (covering up to 40M annual exams). Direct overlap in AI-driven radiology workflows, with Aidoc supplying the AI point tools that MosaicOS/Cognita are now competing with internally.

Broad incumbents

• GE HealthCare: Broad incumbent in imaging equipment and enterprise imaging software, including AI-enabled radiology workflow tools. Competes for the same hospital budget lines RP addresses and represents both a potential channel partner and a head-to-head platform competitor.
• Philips (Enterprise Imaging / Philips HealthSuite): Global enterprise imaging and PACS incumbent whose platforms are deployed across many of the same hospitals and health systems RP serves. A broad incumbent competitor and potential partner/alternative for MosaicOS external sales.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat8 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/rad_partners
• YouTubeyoutube.com/c/RadPartners
• LinkedInlinkedin.com/company/radiology-partners
• Instagraminstagram.com/radpartners

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Subsidiaries5 records

Funding overview

Funding rounds10 records

Investors3 records

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

M&A5 records

Investments

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

Frequently asked questions about Radiology Partners