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Professional. Dedicated. Innovative.

Meet Our Team

VALLEY MRI AND RADIOLOGY INC is a medical practice of board certified radiologists that have served the San Joaquin, Calaveras and Stanislaus counties for more than 25-years. We have a long history of radiology experience in the valley that brings skill to all of our professional interactions.

Our offices provide diagnostic services that include MRI/MRA (both High Field and High Field Open), 64-splice CT, Ultrasound,2D and 3D Mammography with Digital Tomosynthesis, Fluoroscopy and X-Ray.

Our main Stockton Office is located at 546 E. Pine Street in Stockton, Ca. The Valley MRI Stockton facility is our flagship Medical Imaging Center founded in 1991 by Dr. Aubrey Federal. 

For more information or to schedule please contact our Stockton office at (209) 467-1000.

Our Lodi Office, located at 801 S. Ham Lane in Suites Q & R in Lodi, CA was founded in 2001, bringing our medical imaging services to Lodi and the surrounding communities.

The Lodi office offers the GE High Field MRI, 64-Slice CT,  2D-Mammography, Ultrasound & X-Ray.

For more information or to schedule please contact our Lodi office at (209)366-1000. 

We have recently added 3 new locations in Stockton (Brookside Area), Manteca and Modesto. All three offices will be providing diagnostic ultrasounds and are offering same day appointments.

Our Stockton Brookside office performs 3D mammography with digital tomosynthesis on a Genius 3D Hologic Digital Mammography Machine with Smart Curve.

Charles A. Stillman D.O. – Radiologist

CEO/Board Certified Radiologist

Charles A. Stillman, DO, FACR, our CEO and owner, is a board certified radiologist and served 5 decades in the US Army with one combat tour where he earned the Bronze Star. Dr. Stillman retired as a full-bird Colonel in 2021. He started with Valley MRI in 2010 and took over the practice from Dr. Aubrey Federal in 2016.

Daniel S. Dietrich M.D. – Radiologist

Board Certified Radiologist

Daniel S. Dietrich, MD is a board certified radiologist and has been with Valley MRI since 2008.

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