Mason Health Evergreen Clinic
Opening Feb. 2, 2026
Mason Health-Evergreen Clinic
- M-Th: 6:45 a.m. to 4 p.m.
- Closed for Lunch: 12 p.m. - 12:45 p.m.
- Closed Friday-Sun

Arriving on time for your scheduled appointment is important in addressing your health care needs. Please notify Mason Health as soon as you know you will need to change or cancel your appointment. You are required to cancel your appointment at least one business day prior to your scheduled appointment because of high patient demands. Your ability to schedule future appointments will change because of missed appointments or cancellations.
If you have questions about our No-Show and Cancellation policy, please call the clinic or download a copy of the No-Show and Cancellation Policy as indicated below.
Clinic Providers
Mat Kummerfeldt, PA-C
Mat Kummerfeldt is a Primary Care provider who joined Mason Health in 2023. He believes that the role of the Primary Care provider is to educate patients about maintaining good health, provide timely access to healthcare, identify illness early and intervene quickly and appropriately to provide the best outcome possible.
Carlos Rubio-Reyes, MD
Dr. Rubio-Reyes is a board-certified family medicine physician who graduated from the Universidad Autónoma de Guadalajara Facultad de Medicina in Guadalajara, Mexico, and New York Medical College in 2013. He obtained his residency training at University of Missouri Health Care and has been in practice since 2017. He is fluent in Spanish and looks forward to reaching out to the Hispanic community.
Patient Forms & Information