Medical Research Leader
for Over 24 Years

Patients in Our Database

Successful Trials

Qualified and Experienced Staff

Our Mission: Diablo Clinical Research is committed to advancing health through medical research and community service.

Our staff is comprised of highly experienced and professionally trained team members. Learn more about our staff and our experience.

Commitment to Excellence

Our relationship with our sponsor/CRO partners and patients is critical to our success. Click below to see what our customers have to say about our work.


“All queries were answered in the required timeline. This site does not compromise quality due to quantity – you even accepted a transfer subject even though recruitment goals were already exceeded! Congratulations, your team is doing an extraordinary job.”

-Pfizer, DCR Partner


“Documentation is meticulously kept and organized. The pharmacy binder is well maintained and very well organized. The pharmacist’s attention to detail is commendable and necessary for the pharmacy and drug accountability.”

-ViroMed/Helixmith, DCR Partner


“I’ve been doing studies with Diablo for over 10 years and I have always been respected for my time and services.”

-DCR Patient


 “Easy to find all docs and all included in regulatory binder. I give them a 5/5 on queries being answered in a timely manner.”

-Sanofi, DCR Partner


“This was a great experience. The study drug proved to be very beneficial for me and was something I would not have had the opportunity to try outside of this study. Lana was AMAZING! Always accessible and responded to any emails very quickly. I really enjoyed working with her on this study and would be glad to do so again if the opportunity arises. Dr. Stacey was also great to work with. It was a very pleasant experience.”  

-DCR Patient


“It is always a pleasure to visit here. Everyone is friendly, accommodating, and accessible.” 

Insulet, DCR Partner


“Diablo Clinical Research is always such a pleasure to work with, and the study drug greatly improved my quality of life.”

DCR Patient 


“Easy to locate data throughout source. Staff closed out queries while CRA on site. Staff is awesome and so helpful.” 

-Xeris, DCR Partner


“The doctors, coordinators and other staff members were all professional and pleasant to work with at the same time. They seemed very committed to quality and accuracy in carrying out the processes related to the research study.”

DCR Patient


“SC, PI and regulatory personnel are always available, friendly, professional and thorough. I send queries usually weekly and SC and the EDC team always respond accurately and in a timely manner. Source document – I’d say near perfect design and accurateness and completion. Thank you for consistently being exceptional!”

-Bristol Myers Squibb, DCR Partner

State of the Art Facilities

Our 14,000 square foot facility gives us the capability to perform Phase 1-3 drug studies and device studies. We have the space and equipment to perform both in-patient and out-patient studies.  Also, we are located close to 2 international airports (SFO and OAK) and close to public transportation (BART and bus) for easy access for our partners and patients. 

Contact Us

2255 Ygnacio Valley Road, Suite M
Walnut Creek, CA 94598

(925) 930-7267

We Do More

Excellent Patient Healthcare: Diablo Clinical Research provides patients with high quality health care in a comfortable, professional, and confidential environment.

Valuable Study Data: Diablo Clinical Research provides sponsors with accurate and timely data to support new and improved therapies for a variety of health issues.

Community Service: Diablo Clinical Research provides free education and screening services to help the public stay informed about their health and well-being.

Diablo Clinical Research