About Mosaic Diagnostics

Formerly The Great Plains Laboratory

 

Over 25 years of pioneering functional medicine testing.

 

Our Mission

Deliver the industry’s most respected diagnostics, research, and educational support providing practitioners with actionable data from a partner they can trust resulting in informed, science-based diagnostic and wellness strategies tailored to each patient’s unique challenges and environment.

Our History

For over 25 years, we have been pioneering functional medicine testing. First as Great Plains Laboratory and now as Mosaic Diagnostics, our comprehensive testing solutions help identify the root causes of chronic health conditions. If you liked us as Great Plains Laboratory, you’re going to love ​working with us as Mosaic Diagnostics.

A Partner You Can Trust

Our commitment to ensuring accuracy, reliability, and quality in all our tests, combined with our efforts to educate and support practitioners, make MosaicDX a leader in functional medicine testing.

About Mosaic Diagnostics

Quality

Rely on our CLIA-certified and clinically validated tests for confidence in your lab results.

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Accuracy

Trust our experienced clinical teams to deliver accurate and reliable test results in a timely manner.

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Expertise

Benefit from a wealth of expertise accumulated over 25+ years of research and data analysis.

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Empowerment

Strengthen practitioners’ ability to uncover the root cause of health issues through education and clinical guidance.

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Support

Personalized support tailored to meet the unique needs of your practice and patients.

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Convenience

A straightforward, uncomplicated testing process that minimizes hassle and maximizes efficiency.

Leadership Team

Scott Mattivi, CEO

Scott Mattivi

Chief Executive Officer

Nichole Johnson

Chief Operating Officer

Jay Feldman

Chief Information Officer

David Knecht

Chief Financial Officer

Tim Arndt

VP, North American Sales

Mary Gallagher

SVP, Marketing

Meet Our Clinical Development Team

At MosaicDX, we prioritize your success in applying clinical insights provided by our testing. That’s why our clinical support team, consisting of medical doctors, naturopathic doctors, doctors of clinical nutrition, and registered dietitians, is here to assist you every step of the way.

With an active MosaicDX practitioner account, you gain access to one-on-one virtual consults with our clinical educators.

  • Result Interpretation: Gain a deeper understanding of test results and their implications for personalized patient care.
  • Follow-Up Testing Strategies: Receive guidance on implementing effective follow-up testing strategies based on patient results.
  • Test Selection and Application: Get recommendations on selecting the most appropriate tests for your patients’ specific needs and applying them effectively.
  • Additional Testing Options: Discover a range of supplementary testing options that can further broaden your clinical insights and enhance patient care.

Teresa McBride, ND

Director of Clinical Development
Dr. McBride is a board-certified naturopathic physician with over 25 years’ experience in various settings including clinical practice, medical education, research, and laboratory diagnostics she brings unique and practical insight to Mosaic’s product and educational offerings. Driven by the belief that healthcare should be more than just disease management, she is committed to finding ways to improve healthcare through novel solutions and efficacious treatments. Her consulting practice centers around personalized care employing nutrition, lifestyle modifications, as well as botanical and homeopathic medicines to effectively address both acute and chronic conditions.

Michelle Maddux, ND

Senior Manager, Clinical Development
Dr Michelle Maddux received her Doctorate of Naturopathic Medicine from Sonoran University of Health Sciences (formerly SCNM) and her Bachelor of Science in Business Management from the University of Phoenix. She has completed additional training in integrative and functional medicine, laboratory medicine, eating disorders, meditation, yoga, and mindfulness. Her clinical practice focuses on teaching highly functioning women to take care of themselves no matter how messy life gets. Dr. Maddux has been an educator in the Functional and Integrative laboratory space for over a decade and is happy to continue learning and sharing knowledge as part of the Mosaic Diagnostics team.

Sasha Taylor, ND

Manager, Clinical Development
Dr. Sasha Taylor is a multi-state licensed naturopathic doctor with a clinical focus in hormonal, gastrointestinal and thyroid concerns as well as pediatric neurodevelopmental conditions such as autistic disorders and ADHD. She emphasizes teaching as empowerment when working with patients and practitioners alike while teaming up to investigate the root cause. She received her Doctorate in Naturopathic Medicine from Sonoran University of Health Sciences (formerly SCNM) after earning dual Bachelor of Science degrees in Nutritional Sciences and Kinesiology from the Pennsylvania State University.

Andrea Patin,
ND, CG

Clinical Educator
Dr. Andrea Patin earned her Doctorate of Naturopathic Medicine from Sonoran University of Health Sciences and her Biomedical Sciences degree from Texas A&M University. She holds an ASCP certification in Cytogenetics with prior experience in the biopharmaceutical and nutraceutical industries. Her current practice focuses on hormonal and genetic conditions addressing issues that affect mental, emotional, and physical health.

Karleen Sickinger, NMD

Clinical Educator
Dr. Karleen Sickinger received her doctorate from Southwest College of Naturopathic Medicine and is a board-certified naturopathic physician. She has been in clinical practice for the past 10 years, helping patients with chronic health conditions through the use of specialty lab testing, education, and various treatment modalities.
Lindsay Goddard MS, RDN Select

Lindsay Goddard, MS, RD, LD/N

Manager, Clinical Dev.
Lindsay Goddard is a Registered and Licensed Dietitian (RD, LD/N), with a Master’s in Nutrition, and a Bachelor’s in Biology with a concentration in Human Physiology and Ecology. She also has advanced training in Toxicology from the University of South Florida and is certified in Integrative and Functional Nutrition. She has worked in a variety of settings such as hospitals, universities, and outpatient clinics, specializing in gastroenterology, pediatrics, genetics, and physiatry, integrating both functional and conventional approaches. After years of being in the field, she decided to shift gears and work for a laboratory to help support and educate providers from a different avenue. She has been with MosaicDX (formerly Great Plains Laboratory) for over 5 years and enjoys shedding light on the connections and interactions between the body, the environment, and nutrition.