#1Mercy Oncology Center
Based in Redding, CA
Clinical Research Sites in Shasta County, CA
The top-ranked clinical research sites serving Shasta County, CA are Mercy Oncology Center, Mercy Regional Cancer Center and Paradigm Clinical Research Center, Inc.. We list 6 clinical research sites serving Shasta County, CA. 6 of the providers shown match an active record from ClinicalTrials.gov, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Clinical Research Sites serving Shasta County, CA. 6 providers, 6 of the top 6 verified against federal or state records. Registry records checked on 2026-11-04.
Top 6 ranked clinical research sites for Shasta County
| # | Provider | Verified records | Based in | Phone |
|---|---|---|---|---|
| 1 | Mercy Oncology Center | Site on 7 active studies registered on ClinicalTrials.gov | Redding, CA | — |
| 2 | Mercy Regional Cancer Center | Site on 8 active studies registered on ClinicalTrials.gov | Shasta, CA | — |
| 3 | Paradigm Clinical Research Center, Inc. | Site on 2 active studies registered on ClinicalTrials.gov | Shasta, CA | — |
| 4 | Paradigm Clinical Research Centers, LLC | Site on 6 active studies registered on ClinicalTrials.gov | Shasta, CA | — |
| 5 | Paradigm Clinical Research - Redding | Site on 2 active studies registered on ClinicalTrials.gov | Shasta, CA | — |
| 6 | The Cardiovascular Center | Site on 3 active studies registered on ClinicalTrials.gov | Shasta, CA | — |
#2Mercy Regional Cancer Center
Based in Shasta, CA#3Paradigm Clinical Research Center, Inc.
Based in Shasta, CA#4Paradigm Clinical Research Centers, LLC
Based in Shasta, CA#5Paradigm Clinical Research - Redding
Based in Shasta, CA#6The Cardiovascular Center
Based in Shasta, CA
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Frequently asked questions
How many clinical research sites serve Shasta County?
We list 6 clinical research sites serving Shasta County, CA: 6 based there and 0 serving it from nearby. 6 of the top 6 match an active federal or state record, checked on 2026-11-04.
Which clinical research sites serve Shasta County?
The top-ranked clinical research sites serving Shasta County, CA are Mercy Oncology Center, Mercy Regional Cancer Center, Paradigm Clinical Research Center, Inc., Paradigm Clinical Research Centers, LLC and Paradigm Clinical Research - Redding. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving Shasta County are verified against official records?
6 of the top 6 match an active official record: Mercy Oncology Center (ClinicalTrials.gov), Mercy Regional Cancer Center (ClinicalTrials.gov), Paradigm Clinical Research Center, Inc. (ClinicalTrials.gov), Paradigm Clinical Research Centers, LLC (ClinicalTrials.gov) and Paradigm Clinical Research - Redding (ClinicalTrials.gov), and 1 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
How do sponsors judge a research site?
Common checks are enrollment history in the indication, experienced coordinators, IRB arrangements, start-up time and data quality. ClinicalTrials.gov shows which studies a site has been listed on.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .
Cities in Shasta County
Communities served
Anderson, Shasta Lake, Cottonwood, Happy Valley, Bella Vista, Burney, Palo Cedro, Shingletown, Centerville, Jones Valley, Shasta, Mountain Gate, Millville, Johnson Park, Fall River Mills, Lakehead, French Gulch, McArthur, Whitmore, Hat Creek, Castella, Cassel, Keswick, Montgomery Creek, Round Mountain, Oak Run, Igo, Ono, Big Bend, Old Station, Platina