With over 20 years of medical experience and a passion for personalized, root-cause wellness care. Board certified since 2008, she earned her Master of Science in Nursing from Texas Woman’s University and later completed her MBBS at the University of Science, Arts, and Technology of Montserrat.
Mary Katherine takes a whole-person, integrative approach to health, blending evidence-based medicine with functional and wellness-focused strategies. Her clinical background includes urgent care, emergency medicine, orthopedic spine care, hormone optimization, pain management, and integrative wellness, allowing her to support both acute needs and complex, chronic conditions. Since 2020, she has also served as a Professor in the Health Sciences Department at Southern California University, teaching bachelor’s- and master’s-level courses in pathophysiology, chronic disease of aging, embryology, and human development. She has contributed to the academic field through the publication of two scholarly articles and by helping develop and redesign advanced health science curricula.
Mary Katherine is known for her compassion, empathy, and ability to truly listen. She partners with each patient to create individualized, lab-guided wellness plans designed to restore balance, optimize health, and support long-term vitality.
We believe that symptoms are signals—not inconveniences to ignore or suppress. Our approach to care is centered on listening, asking better questions, and using data to understand how different systems in the body are connected.
Rather than offering one-size-fits-all solutions, I focus on education, partnership, and individualized care that empowers patients to take an active role in their health.
Many of the patients we work with have tried multiple treatments without lasting relief. Functional medicine allows us to move beyond symptom management and look at underlying contributors such as hormones, gut health, inflammation, nutrient status, and lifestyle factors.
This approach creates clarity and direction—especially for those who feel dismissed or frustrated by unanswered questions.
We commonly work with individuals who:
This practice serves individuals seeking clarity, education, and long-term wellness support.
Appointments are unhurried and collaborative. You can expect to be listened to, educated, and supported throughout your care. Virtual and in-person visits are available to meet your needs.
EXCELLENT Based on 181 reviews Posted on Susie AlbertsonTrustindex verifies that the original source of the review is Google. She was great! So very thorough and very good at explaining my labs to me. Got me great supplements to start!Posted on Kody EvansTrustindex verifies that the original source of the review is Google. Straight to Wellness has been a tremendous help. Mary Katherine is amazing at listening to your needs and helping you with your wellness. Highly recommend!Posted on Hannah SeatonTrustindex verifies that the original source of the review is Google. Great customer service from Penny!Posted on Justin NeumanTrustindex verifies that the original source of the review is Google. Go see Penny she will definitely get you taken care of!Posted on Sissy NeumanTrustindex verifies that the original source of the review is Google. Wonder customer service go see Penny she will get you fixed up!Posted on Tonya HicksTrustindex verifies that the original source of the review is Google. Absolutely wonderful experience! Straight 2 U Wellness went above and beyond. Penny was incredibly knowledgeable of services provided and in answering all my questions. The service was quick, and easy and exceeded my expectations. Definitely be back!Posted on Saxton BarnettTrustindex verifies that the original source of the review is Google. Penny was very helpful and awesome!Posted on Natividad Martinez IIITrustindex verifies that the original source of the review is Google. Great business and wonderful receptionist. Penny gave me good information and knowledge that i was looking for, for the questions i had asked. Overall great customer service/ support.Posted on Ethan PashaTrustindex verifies that the original source of the review is Google. Penny is the best there!Posted on Bonsai TreeTrustindex verifies that the original source of the review is Google. 5 Star service ! The lady Penny shires was so nice and was super helpful overall 10/10 experience and left feeling refreshed!!