About 1-OAK
One of a Kind Clinical Research Center LLC provides comprehensive clinical research services to patients alongside healthcare providers across three locations: Scottsdale, Arizona; Houston, Texas; and Napa, California. We offer in-person, virtual, and travel trial opportunities to ensure accessible participation in groundbreaking medical research.
Founded in 2021 by Alexandria Clark, BSE and Anna Fehr, RN BSN, 1-OAK was built on a vision to transform clinical research accessibility. We believe that both physicians and patients deserve better access to the benefits and opportunities that clinical trials provide.
Since our founding, our team has grown to include dedicated research coordinators, research nurses, Sub-Investigators, and Principal Investigators across multiple specialties. Each team member shares our commitment to providing exceptional care while advancing medical science.
Anna Fehr RN BSN CCRC
Co-Founder and CEO
Anna earned her BSN as a Sigma Theta Tau Honor Society member, specializing in critical care oncology, and is a certified research coordinator. She brings over 12 years of research experience across immunology, pulmonology, oncology, psychology, gastroenterology, sleep, and neurology. In 2021, she co-founded 1-OAK, where she now serves managing clinical trial workflow and leading the team.
Co-Founder
Alexandria graduated from ASU in 2018 with a degree in Biomedical Engineering and gained early research experience coordinating in the Autism and Aging Lab, where she discovered her passion for blending patient care with medical advancement. In 2021, she co-founded 1-OAK alongside Anna with a vision to bring a fresh perspective to pharmaceutical care.
Ryleigh Alfonso
Research Manager
RRyleigh serves as the Clinical Research Lead at 1-OAK, bringing over six years of clinical research experience and more than ten years in healthcare. She earned her BS in Biological Sciences with a concentration in Genetics and Cell Biology from Arizona State University. Her experience spans Phase II-IV clinical trials across pulmonology, cardiology, gastroenterology, rheumatology, wound care, podiatry, and general medicine. She leads clinical trial operations, regulatory compliance, and research staff while remaining committed to advancing innovative therapies and improving patient outcomes.
Regulatory specialist
Nikki joined One of a Kind Clinical Research Center in August 2023 as a regulatory assistant. She specializes in ensuring that all research conducted at the center meets the highest standards and regulatory requirements. With experience speaking on various regulatory panels, she is dedicated to supporting rigorous, compliant research that advances innovative medical treatments.
Meet Your Arizona Team
Lilian Le
Clinical Research Coordinator
Lilian is an Arizona native currently pursuing her nursing degree at Scottsdale Community College after studying Physiology and Medical Science at the University of Arizona. Inspired by her experience as a first-generation Vietnamese American serving as her family’s translator during medical appointments, she developed a passion for patient care early on, beginning her healthcare career as a CNA. She brings experience in women’s health, emergency medicine, and internal medicine, serving as a patient liaison, medical assistant, and medical scribe. Outside of work, Lilian enjoys traveling, discovering new coffee shops, and staying active through Pilates and weightlifting.
Dora Le
Clinical Research Coordinator
Dora joined One of a Kind Clinical Research Center as a Clinical Research Coordinator after earning her Master of Public Health in Health Services Administration from the University of Arizona. She brings experience in both academic and industry research settings, along with a background as a Medical Assistant and Licensed Nursing Assistant. Passionate about translational research, Dora is committed to improving equitable access to clinical trials and connecting diverse patient populations with innovative therapies. Outside of work, she enjoys exploring local cafés and bakeries, baking, and reading.
Sophia Pitmann
Clinical Research Coordinator I
Originally from Atlanta, Sophia earned her Bachelor of Science from the University of Arizona with dual majors in Neuroscience & Cognitive Science and Psychological Sciences. She recently began her career as a Clinical Research Coordinator and is passionate about advancing patient care through clinical research. Sophia brings enthusiasm, attention to detail, and a collaborative approach to every study. Outside of work, she enjoys reading, traveling, staying active, and spending time with her cat, Toby.
Mason Sandoval
Clinical Research Assistant
Originally from Long Beach, California, I am currently pursuing my bachelor’s degree in general science. I enjoy working with patients and take pride in providing compassionate care while helping others feel comfortable and supported. Outside of school, I enjoy staying active through fitness, spending time with friends and family, and hanging out with my dog, Mamba.
Meet Your California Team
Clinical Research Coordinator
Michelle joined 1-OAK in July 2024, bringing 15 years of diverse healthcare experience in education, training, and clinical operations across phlebotomy, medical assisting, and transfusion and transplantation services. Now transitioning into clinical research, she is passionate about advancing studies in allergies and asthma to make a meaningful impact on the local community and improve patient outcomes.
Meet Your Texas Team
Clinical Research Coordinator
Joseph joined 1-OAK as a Clinical Research Coordinator in 2026. Raised in Houston, he received his Bachelor of Science at the University of Houston graduating summa cum laude. Joseph began his research experience in psychology research and interventional studies in 2023 at UH and has a strong background in psychology, personality, and couples research. He likes going to the gym and staying active with activities like hiking and scuba diving.
Clinical Research Coordinator I
Scottsdale, AZ:
602-820-6906
9825 N 95th St 105B Scottsdale AZ 85258
M-F: 0800am- 0300pm
Napa, CA:
707-819-0357
1100 Pear Tree Ln Napa CA 94558
M-F: 0800am- 0300pm
Houston, TX:
346-847-9375
19701 Kingwood Dr Bldg 5 Kingwood TX 77339
M-F: 0900am- 0400pm