Our People

We think that It’s What’s Inside That Counts is much more than just a clever tag line. It speaks to who we are as people, what we do, and what we stand for. Everything the SDMI team does is about delivering the best possible experience to our patients.  We know healthcare can be scary. That’s why, when you arrive, we will welcome you with a warm smile to let you know how glad we are to see you; we’ll answer all your questions and concerns and hold your hand during your procedure; and most importantly, we will make you feel like a loved member of the family.

Blond woman in black scrubs sitting at a desk in front of a computer while smiling
Several smiling seated patients in the waiting room with empty seats between them

Our Facilities

Abundant with natural light, well-managed and spotlessly clean - we pay attention to the details because we know how important every aspect of your visit is to your overall experience.

Our Technology

Is image really everything? We would argue that, in radiology [and your diagnosis], ACCURACY is everything. That’s why we invest each year in acquiring the latest breakthroughs in imaging technology. Would anything else be good enough when it comes to finding the answers you need? We don’t think so, either.

Full view of Signa Pioneer brand PET and CT scan machine in medical examination room

Our Mission & Vision

To deliver an EXCEPTIONAL patient experience and accurate results through compassion and cutting edge technology, and be the medical imaging provider of choice for every patient and physician, and the employer of choice for our community.

For decades, SDMI has been breaking new ground in the medical imaging industry.

In 1958, Dr. Leon Steinberg moved to Las Vegas to open Sunrise Hospital’s first radiology department in Southern Nevada. Through this experience, he saw a need for a more patient-friendly option for medical imaging and aimed to build such a practice. With his son, Dr. David Steinberg and Dr. Mark Winkler, as his partners, Dr. Leon opened the first SDMI office in 1988. Their standards of excellence in patient care and technology have brought national and international recognition. Today, the commitment to deliver top-notch care wrapped around a positive patient experience has never been stronger. With more than 30 years under their belt, the number one priority in this family-owned business is to make sure that every patient is treated as a VIP.

Three smiling male professionals that work for SDMI wearing polos or dress shirts

Our Team

Our team of more than 550 radiologists, technologists and staff are specialty trained in more than 2,000 procedures, ranging from screening mammograms to port placements for chemotherapy. No matter which type of imaging study your physician has referred you for, our talented and compassionate team will make you feel well cared for and properly informed by using the very best imaging equipment and providing top quality care.

Our team of radiologists are all accredited by the American Board of Radiology and are members of the American College of Radiology. Most are sub-specialized in the area of study in which they performed their fellowship training, such as Interventional Radiology, Musculoskeletal, Women's Imaging or Pediatric Radiology.

Interested in joining our team?
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David L. Steinberg, MD
Managing Partner
Neuroradiology
PET/CT Oncology
Cardiology
Mark L. Winkler, MD
Partner
Musculoskeletal
Neuroradiology
PET/CT Oncology
Cardiology
Lien Specialists
George D. Momii, MD
Diagnostic Radiology
Neuroradiology
PET/CT Oncology
Women’s Imaging
Cardiology
Lien Specialists
Michael M. Kawaguchi, MD
Musculoskeletal, Cardiovascular Imaging, Women's Imaging & PET/CT Oncology
Musculoskeletal
PET/CT Oncology
Women’s Imaging
Cardiology
Lien Specialists
David G. Browne, MD
Neuroradiology & PET/CT Oncology
Neuroradiology
PET/CT Oncology
Lien Specialists
David T. Kuo, DO MBA
Interventional Radiology, PET/CT, Women's Imaging, Cardiovascular Imaging
PET/CT Oncology
Women’s Imaging
Cardiology
Interventional
Lien Specialists
Saul Ruben, MD
PET/CT Oncology & SDMI Thyroid Panel
PET/CT Oncology
Interventional
Thyroid Panel
Alison M. Nguyen, MD
Musculoskeletal
Musculoskeletal
Lien Specialists

Staying Ahead of Technology

Revolutionize diagnostic capabilities with our cutting-edge Advanced Imaging Analysis powered by AI. Designed to empower radiologists, our AI-driven tools enable faster and more effective cancer detection across multiple modalities, including Mammography (Mammo), Magnetic Resonance Imaging (MRI), Computed Tomography (CT), and Positron Emission Tomography (PET). Our advanced support extends to specialized areas such as Brain imaging analysis, providing comprehensive solutions for intricate studies. We harness the power of AI to enhance the precision and efficiency of radiological interpretations, ensuring timely and accurate insights that make a significant impact on patient care.

All Services

Become a member of
Team SDMI

Think you have what it takes to join our dedicated team? Click below to view open positions and apply online.

Open Positions