United States Diagnostic Imaging Services - Market Share Analysis, Industry Trends & Statistics, Growth Forecasts (2026 - 2031)

According to Mordor Intelligence, the united states diagnostic imaging services market size was valued at USD 193.69 billion in 2025 and is estimated to grow from USD 203.09 billion in 2026 to reach USD 257.35 billion by 2031, at a CAGR of 4.85% during the forecast period (2026-2031).

This report is Segmented by Modality (X-Ray, CT, MRI, Ultrasound, Mammography, Nuclear), Application (Oncology, Cardiology, Neurology, Orthopedics, Women's Health, General), Site of Care (Hospital, Freestanding, Community, Mobile), Delivery Model (Owned, JV, Managed, Teleradiology), Payor (Commercial, Medicare, Self-Pay, Others). The Market Forecasts are Provided in Terms of Value (USD).

United States Diagnostic Imaging Services Market Trends and Insights

Aging Chronic-Disease Imaging Volumes

The US diagnostic imaging services market has a durable demand floor because chronic disease prevalence remains high in adults age 45 and older, and those conditions often require repeated imaging across diagnosis, monitoring, and follow-up care. Heart disease, cancer, COPD, and stroke all become more common with age, which means imaging demand rises not only because the population is aging, but also because older patients tend to move through several imaging pathways at the same time. This pattern supports study growth across CT, MRI, nuclear imaging, ultrasound, and X-ray, because multimorbidity increases the number of scans attached to a single episode of care. The US diagnostic imaging services market therefore benefits from a patient mix where recurring surveillance matters as much as first diagnosis, especially in oncology, cardiology, and neurology. That demand base is difficult to displace because it is linked to long-cycle care needs rather than discretionary procedure use.

Screening-Led Early Diagnosis Demand

The US diagnostic imaging services market is also benefiting from broader screening pathways that enlarge the pool of patients entering imaging earlier in the care journey. The 2024 USPSTF breast cancer screening update lowered the recommended start age to 40 for biennial mammography, which should support a larger screening population over time. A 2024 JAMA Network Open study also showed that broader age-based lung cancer screening could prevent 26,124 deaths annually and be 6 times more cost-effective than current screening approaches, which points to further procedure upside if eligibility expands in future policy cycles. These changes favor operators with strong outpatient screening capacity, because mammography, CT, and follow-on imaging referrals tend to build around dense, convenient access points. Solis Mammography's October 2025 acquisition of the St. Louis Breast Center shows how specialized screening providers are expanding into additional metropolitan areas to capture that volume growth.

Radiologist And Technologist Shortages

Workforce shortage remains one of the clearest structural constraints on the US diagnostic imaging services market. Research published in the American Journal of Neuroradiology in April 2025 reported 31,825 ACR Career Center listings against 10,180 anticipated diagnostic radiology residency graduates through the NRMP period reviewed, which implies a large mismatch between demand and training output. The pressure is most visible in advanced imaging and subspecialty reads, where delays can reduce throughput, stretch turnaround times, and weaken referral retention. This is one reason the US diagnostic imaging services market is leaning more heavily on automation, centralized reading platforms, and network models that can move studies across a broader clinician base. The shortage also tilts bargaining power toward larger organizations that can offer better compensation, deeper support teams, and more flexible reading arrangements.

Other drivers and restraints analyzed in the detailed report include:

1. AI-Enabled Workflow and Scan Productivity
2. Virtual Direct Supervision for Contrast Imaging
3. Reimbursement And Margin Pressure

For complete list of drivers and restraints, kindly check the Table Of Contents.

Segment Analysis

X-ray accounted for 28.31% of revenue in 2025, which kept it as the largest modality in the US diagnostic imaging services market because it remains essential across emergency care, orthopedics, and chest evaluation. The segment's scale rests on procedure breadth rather than on high ticket pricing, which means revenue share remains strong even though CT and MRI often generate more value per exam. This wide clinical footprint gives X-ray a stabilizing role in the US diagnostic imaging services market because it supports both acute and routine imaging demand across hospitals and outpatient sites. AI adoption is also beginning to improve throughput in this modality, especially where report generation and documentation can be standardized. SimonMed Imaging's December 2025 partnership with Lunit to deploy multimodal foundation models for chest X-ray report generation shows that even high-volume, lower-ticket categories are becoming part of the next operating model.

Computed Tomography is the fastest-growing modality, with the US diagnostic imaging services market size for CT projected to expand at a 6.38% CAGR through 2031. CT is gaining share of incremental study growth because it sits at the center of lung screening, cardiovascular imaging, trauma evaluation, and many oncology pathways. RadNet reported a 17.7% year-on-year increase in CT procedural volumes in Q1 2026, while same-center CT volumes rose 4.7%, which indicates that demand is growing both organically and through network expansion. MRI is also expanding on the back of neurological, musculoskeletal, and cardiac use, and RadNet stated that same-center MRI volume rose 10.0% in Q1 2026. Ultrasound and mammography remain important growth supports because they benefit from portability, lower patient friction, and stronger preventive screening use, while SimonMed's January 2025 partnership with Siemens Healthineers for liver disease screening reflects continued modality-specific investment in ultrasound workflows.

Oncology represented 33.24% of revenue in 2025, giving it the largest application position in the US diagnostic imaging services market. That leadership reflects the longitudinal structure of cancer care, where patients often move through staging, restaging, treatment response monitoring, and recurrence surveillance across several modalities. The segment also benefits from the way screening expansion feeds downstream advanced imaging, especially when suspicious findings generate follow-up CT, MRI, ultrasound, or nuclear imaging. Oncology volumes therefore support both baseline utilization and higher-value cross-sectional procedures across provider networks. Radiology Partners' October 2025 launch of Mammo Enhance Heart also shows how screening infrastructure can be used to widen clinical value capture from existing imaging touchpoints.

Neurology and Spine is the fastest-growing application, with the US diagnostic imaging services market size for this segment expected to rise at a 7.52% CAGR through 2031. MRI demand is a major driver because stroke workup, multiple sclerosis follow-up, degenerative spine disease, and cognitive decline assessment all depend on repeated imaging over time. Cardiology imaging remains an important adjacent volume stream, but the ASNC-reported Tc-99m pyrophosphate shortage in early 2025 showed how nuclear cardiology can be disrupted by supply issues outside provider control. Orthopedics and musculoskeletal imaging continue to provide high-frequency demand because aging patients and outpatient joint procedures support recurring diagnostic needs. Women's Health and Obstetrics also stand to gain from expanded screening and supplemental follow-up pathways, while General Imaging remains a dependable base because emergency departments and primary care referrals continue to generate broad study volume.

List of Companies Covered in this Report:

1. Akumin
2. Capitol Imaging Services
3. CommonSpirit Health
4. Envision Radiology
5. HCA Healthcare
6. LucidHealth
7. Lumexa Imaging
8. MedQuest Imaging
9. Outpatient Imaging Affiliates
10. Radiology Partners
11. RadNet
12. RAYUS Radiology
13. Rezolut
14. Shared Medical Services
15. SimonMed Imaging
16. Solis Mammography
17. Tenet Healthcare
18. The US Oncology Network
19. Touchstone Medical Imaging
20. vRad

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support