What Quantum Radiology does

Quantum Radiology, P.C. is the largest private practice radiology group in Georgia and one of the largest in the United States, headquartered at 790 Church Street, Suite 400, Marietta, GA. Founded in 1995 through the strategic alliance of Cobb Radiology Associates (1969) and Radiology Associates of Marietta (1951), the practice is 100% physician-owned and operated, governed as a partnership with an executive team comprising a CEO, CFO, COO, Controller, and directors of business intelligence, HR, IT, and marketing. Quantum has been a founding member of Strategic Radiology and runs the wholly-owned Quantum Physician Services (QPS) consulting subsidiary alongside the jointly-operated Q3D 3D imaging lab.

The practice employs 80+ fellowship-trained radiologists organized across nine subspecialties (advanced body, breast, cardiac, interventional, musculoskeletal, neuroradiology, nuclear medicine/PET, pediatric, and thoracic imaging), interpreting and performing more than 1.4 million exams annually across eight WellStar Health System hospitals (including trauma and stroke centers) and 91+ outpatient diagnostic centers spanning the metro Atlanta area. Technology stack includes 3T MRI, CT, PET/CT, SPECT-CT, digital mammography with 3D tomosynthesis, ultrasound, fluoroscopy, the proprietary Q3D 3D post-processing service, and AI-augmented interpretation in breast imaging and cardiothoracic case management. Specialized offerings include a Mobile Breast Center providing onsite 3D screening mammography to corporate partners, the Wellstar STAT Lung Cancer Clinic (a national model with 10,000+ patient visits), and emerging interventional procedures such as Genicular Artery Embolization and Genicular Nerve Ablation.

Revenue is generated through two primary streams: professional radiology interpretation and diagnostic imaging services billed to patients and commercial/government insurance payers, and direct self-pay patient services priced on a published unit basis (e.g., screening mammogram $330, endovenous laser $3,500). GTM is enterprise-field-sales-driven: the flagship channel is the long-standing WellStar strategic partnership, supplemented by a physician referral network supported by online ordering guides, a corporate-wellness channel for the Mobile Breast Center, and a minor management-consulting revenue line through QPS. Customer concentration is overwhelmingly on WellStar Health System, with smaller exposure to direct-pay patients and corporate wellness clients.

Name

Quantum Radiology

Legal name

Quantum Radiology, P.C.

Website

https://quantumradiology.com

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

51–100 employees

Short description

Quantum Radiology is the largest private practice radiology group in Georgia, providing subspecialized diagnostic imaging across 8 WellStar hospitals and 91+ outpatient centers, with 80+ fellowship-trained radiologists interpreting 1.4M+ exams annually.

Ownership category

akta.pro rank

Product category

Diagnostic Imaging Services

NAICS

Diagnostic Imaging Centers (621512)

SIC

Services-Offices & Clinics Of Doctors Of Medicine (8011)

akta.pro primary industry

Radiology Imaging Centers (X-ray/CT/MRI/Ultrasound) (HLAFAKAA)

akta.pro secondary industries

Advanced Imaging & Specialty Radiology Centers (PET/CT, Nuclear Medicine, Interventional Radiology) (HLAFAKAB), Nuclear Medicine & Molecular Imaging (SPECT/PET) (HLAHABAE), Interventional Radiology & Image-Guided Therapy Systems (HLAHABAG)

Keywords

• Diagnostic imaging services
• Radiology interpretation
• Mammography screening
• Interventional radiology
• Medical imaging centers

Headquarters

HQ city

Marietta

HQ country

United States

HQ region

North America

Offices16 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Radiology Services: Professional radiology interpretation and diagnostic imaging services billed to patients and insurance providers. Services include CT, MRI, PET/CT, mammography, ultrasound, X-ray, nuclear medicine, and interventional radiology procedures at hospital and outpatient imaging center locations.
2. Self-Pay Patient Services: Direct patient payment for imaging services including mammography and various diagnostic procedures at published self-pay rates.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Quantum Radiology provides professional radiology interpretation and diagnostic imaging services across metro Atlanta, delivering 24/7 subspecialized radiology coverage for WellStar Health System's 8 hospitals and 91+ outpatient imaging centers. The practice interprets over 1.4 million exams annually across modalities including CT, MRI, PET/CT, mammography, ultrasound, nuclear medicine, and interventional procedures, staffed by 80+ fellowship-trained radiologists across 9 subspecialties.

Product overview

Quantum Radiology is a comprehensive radiology practice offering a broad portfolio of medical imaging services across the Atlanta metro area. The company provides core imaging modalities including CT, MRI, Mammography, Nuclear Medicine/PET, Ultrasound, and X-ray/Fluoroscopy, complemented by advanced services like the Q3D 3D imaging post-processing lab. The practice is organized into subspecialty divisions covering Advanced Body Imaging, Breast Imaging, Cardiac Imaging, Interventional Radiology, Musculoskeletal Imaging, Neuroradiology, Pediatric Imaging, and Thoracic Imaging. Unique offerings include a Mobile Breast Center for onsite corporate mammography screening, and specialized interventional procedures such as Genicular Artery Embolization and Genicular Nerve Ablation for knee pain. The practice also operates Quantum Physician Services as a management consulting arm. The company integrates artificial intelligence in breast imaging and cardiothoracic imaging workflows to augment radiologist interpretation.

Differentiator

Problem solved

Functional benefit

Brands

• Quantum Physician Services (QPS): Management consulting division offering expertise in managed care relationships, radiology workflow, operations, contracting, compliance, and recruitment
• Q3D

Products and services

• Computed Tomography (CT)
• Magnetic Resonance Imaging (MRI)
• Mammography
• Mobile Breast Center
• Nuclear Medicine/PET
• Q3D 3D Imaging Lab
• Ultrasound
• Xray/Fluoroscopy

Quantifiable outcome

• Over 1.4 Million exams interpreted annually
• +3 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature3 records

Partnerships

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

• WellStar Health SystemflagshipStrategic or Co-development PartnerMajor healthcare system partner providing comprehensive radiology coverage. Quantum Radiology provides 24/7 radiology services for 8 WellStar hospitals and 91+ outpatient imaging centers. Partnership established through decades-long relationship with one of the largest healthcare systems in the Southeast. Includes multiple stroke and trauma centers.
• Strategic RadiologycoreStrategic or Co-development PartnerQuantum Radiology is a founding member of Strategic Radiology, a collaborative network of private practice radiology groups committed to innovating and sharing best practices to serve patients and communities. Quantum serves on the Board of Strategic Radiology.
• GabbiminorGTM or Marketing PartnerPartnership for breast cancer risk assessment services for younger women ages 24-34. Gabbi provides personalized virtual service with 24/7 expert support and navigation. Quantum Radiology Mobile Breast Center refers patients for risk assessments and can order screening mammograms through the partnership.
• WellStar Health System (Q3D Partnership)coreTechnology or IntegrationQ3D 3D imaging lab formed in partnership with WellStar Health System since mid-2004. Provides cutting-edge 3D post-processing services for CT examinations including CT angiography, CT urography, CT pancreatic protocol, CT liver volume protocol, musculoskeletal CT, and 3D volumetric analysis. Dataset is reviewed by subspecialized radiologists and integrated into PACS system.
• Employers and Wellness GroupsminorChannel Partner/ Reseller/ DistributorPartnership with Atlanta metro area employers and wellness groups for onsite 3D screening mammogram services through Mobile Breast Center. Corporate wellness programs encourage healthy lifestyle and increase employee healthcare compliance by offering onsite care.

Scale indicators8 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Radiology Partners: Largest private radiology practice network in the United States. Directly comparable to Quantum Radiology as a physician-owned (now PE-backed) private practice delivering subspecialized radiology interpretation to hospital systems and outpatient centers at national scale.
• vRad (Virtual Radiologic): National teleradiology practice providing remote subspecialty interpretation to hospitals and imaging centers. Comparable to Quantum Radiology on the interpretation-services side, particularly in subspecialty reads, but competes via a remote delivery model rather than embedded local coverage.
• SimonMed Imaging: One of the largest outpatient imaging networks in the U.S., offering MRI, CT, mammography, ultrasound, and AI-augmented interpretation. Comparable to Quantum in modality breadth and outpatient-center-led model, with heavier national footprint and consumer-facing brand investment.
• US Radiology Specialists: Private radiology practice network offering subspecialized interpretation across hospital and outpatient settings. Closely comparable to Quantum in physician-ownership heritage, subspecialty depth, and large-scale teleradiology/local delivery model.
• Akumin: Outpatient diagnostic imaging operator with a network of fixed imaging centers and PET/CT capabilities. Comparable to Quantum in modality mix and outpatient-center-led delivery, but serves broader geographies rather than a single metro.
• RadNet: One of the largest U.S. outpatient diagnostic imaging networks, operating fixed-site imaging centers and AI-enabled workflows. Comparable to Quantum Radiology in its emphasis on high-volume outpatient imaging centers and modality breadth (MRI, CT, mammography, PET).

Broad incumbents

• Envision Healthcare (Radiology): Large national physician-services group historically including hospital-based radiology. Comparable as a hospital-system-facing radiology services provider at scale, but is a multi-specialty incumbent rather than a radiology-only specialist.
• MEDNAX (Radiology Solutions): Large national physician-services organization with a substantial radiology practice segment. Comparable to Quantum as a multi-specialty physician group delivering radiology services to hospital partners, but operates as a broader healthcare-services incumbent rather than a pure-play radiology group.

Others

• Strategic Radiology: Coalition of independent private radiology practices, of which Quantum Radiology is a founding member. Comparable as a peer-set aggregator — not a competitor — that provides best-practice sharing, group purchasing, and benchmarking benefits to Quantum and member practices.

Regional players

• Shields Health Solutions (Shields Imaging): Regional integrated outpatient imaging and specialty pharmacy operator in the Northeast U.S. Comparable to Quantum in its hospital-affiliated diagnostic imaging model, though operating in a different geographic footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/QuantumRadiologyAtlanta
• LinkedInlinkedin.com/company/quantum-radiology
• Instagraminstagram.com/quantumradiologyatlanta
• Xx.com/qrmobilemammo

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries2 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 Quantum Radiology