About Dr. Masotto
Dr. Masotto focuses on utilizing state-of-the-art imaging technologies to provide accurate diagnoses and guide patient care decisions. As a specialist in diagnostic radiology, he collaborates with other healthcare professionals to interpret imaging results and develop comprehensive treatment plans. With expertise in a wide range of imaging modalities and procedures, Dr. Masotto ensures patients receive precise diagnostic information to support their healthcare journey. Fluent in both English and Spanish, he serves a diverse patient population with compassionate, culturally sensitive care. He is currently accepting new patients at his three Orange practice locations.
Expertise and Recognition
- Castle Connolly Top Hospital Affiliation: Affiliated with Kaiser Permanente Orange County – Anaheim Medical Center, recognized for excellence in patient care and medical outcomes
- Board Certification: American Board of Radiology
- Extensive Experience: Over 23 years of clinical practice
- Specialty Focus: Diagnostic radiology, medical imaging interpretation, abdominal imaging, interventional procedures
- Multilingual Care: Provides care in English and Spanish to serve diverse patient populations
Contact Information
- Office Phone: (714) 538-6731
- Practice Locations: Orange, CA
- NPI Number: 1033118336
- Languages Spoken: English, Spanish
Education & Training
Dr. Masotto’s extensive medical training prepared him to provide expert diagnostic radiology services across multiple imaging specialties.
Medical School & Residency
- Medical Degree: Creighton University School of Medicine
- Residency (Diagnostic Radiology): Loma Linda University Medical Center / Loma Linda University Medical Center Program
- Residency (Internal Medicine): Veterans Affairs Medical Center
Certification
- Board Certification: American Board of Radiology
Services and Conditions
Dr. Masotto provides comprehensive diagnostic imaging services using advanced technologies to support accurate diagnosis and treatment planning.
Medical Procedures Performed
A core focus of his practice includes a wide range of diagnostic imaging procedures:
- Screening Services: Abdominal Aortic Aneurysm (AAA) Screening, Bone Density Measurement / DXA Scan
- Specialized Imaging: Abdominal Imaging, Abdominal Radiology Consultation, Angiography, Arthrography
- Diagnostic Studies: Barium Swallow, Bone Biopsy
- Comprehensive Radiology: Advanced imaging interpretation and consultation services
For detailed information about specific procedures, please contact Dr. Masotto’s office.
Medical Conditions Diagnosed
As a comprehensive Diagnostic Radiologist, Dr. Masotto uses advanced imaging technologies to diagnose a wide range of medical conditions, including:
- Abdominal disorders and abnormalities
- Aortic aneurysms
- Bone and joint conditions
- Vascular diseases
- Gastrointestinal conditions
- Osteoporosis and bone density concerns
- Internal organ abnormalities
- Musculoskeletal injuries and disorders
For a complete list of conditions diagnosed or to discuss your specific imaging needs, please contact Dr. Masotto’s office for more information or to schedule a consultation.
Insurance and Affiliations
Accepted Insurances
Dr. Masotto’s practice accepts a wide variety of major insurance plans, including:
- Medicare
- Medicaid
- UnitedHealthcare
- Kaiser Permanente
- CVS Health (formerly Aetna)
- Blue Shield of California
- Elevance Health Inc. (formerly Anthem)
- CalOptima
- Monarch HealthCare
- Providence Health Plans
- Scan Health Plan
- St. Joseph Health System (CA)
- All Other Third Party insurers
Please call the office at (714) 538-6731 to verify your specific insurance coverage before scheduling your appointment.
Practice Locations
Location 1: Orange Office (Main St)
Address: 363 S Main St, Suite 115, Orange, CA 92868 Phone: (714) 538-6731
Location 2: Orange Office (Chapman Ave)
Address: 2501 E Chapman Ave, Orange, CA 92869
Location 3: Orange Office (Stewart Dr)
Address: 1100 W Stewart Dr, Orange, CA 92868
All locations offer the same high-quality care and comprehensive diagnostic radiology services. Call to schedule an appointment at the location most convenient for you.
Hospital Affiliations
- Kaiser Permanente Orange County – Anaheim Medical Center (Anaheim, CA) – A Castle Connolly Top Hospital recognized for excellence in patient care and medical procedures
- Providence St. Joseph Hospital Orange (Orange, CA)
To schedule an appointment with Dr. Mark Masotto, call (714) 538-6731 today.

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