Pioneer is the largest independent provider of fixed and flexible Imaging services. We provide diagnostic testing for a growing number of healthcare providers. Pioneer offers a complete panel of testing, including OB/GYN, general, vascular, cardiac ultrasounds and  3D/4D/HD live ultrasounds along with other Imaging needs.

Since our beginning in 2006, Pioneer has become the leading provider of community, and office-based diagnostic Imaging Center in California. We offer the best in emerging technology, in both Imaging and communications. While managing our own free-standing locations, we are engaged in partnerships with sole practitioners, small and large office-based office groups, and hospital-based physicians, offering a full montage of Service.


Our scheduling department is available from the hours of 08:00 am to 05:00 pm.

They can be reached toll free at

Randy S.
I needed emergency venous and arterial imaging with published test results immediately due to scheduled surgery on Monday, December 28th. Sameena, the CEO, arranged for her technician to come in on Saturday, December 26, the day after Christmas, and perform the service. Sameena understood and seemed genuinely concerned about the immediacy of my needs and went well beyond that which one would normally expect.The technician was great and the procedure went well. They pre-heated the room for me to ensure I was completely comfortable and even the gel was pre-heated. I’ll certainly use this facility if the need arises.
Nancy M.
This company is awesome. They operate out of a physician’s office so there is no registration necessary. The wait time is practically zero. You are in an out within 45 minutes, and the technician is excellent. Report comes quickly to the doctor. I highly recommend Pioneer Diagnostics.