6425 Lynch Canyon Road
    Mt. Mesa, CA 93240

Voice: (760) 379-8630   
Fax: (760) 379-7658   

Our Staff

Cindy, Melinda 
and Tricia

 

Welcome to our new website for the Sienna Wellness Institute.

Please pardon us while we are under construction.  Check back soon to learn more about our professional and caring staff members.


Dr. Holly Spohn-Gross
 DPM

 

Dr. Robert Gross
DO

 

James Gutzman
 PA-C, FNP, RN

 

Our  compassionate staff looks forward to to helping you with your healthcare needs. 

 

Please call (760) 379-8630 for an appointment. 
Walk-ins welcome! 

 

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   6425 Lynch Canyon Road,    
Mt. Mesa, CA 93240

Voice: (760) 379-8630   
 Fax: (760) 379-7658

 

Dr. Robert Gross, DO
Dr. Holly Spohn-Gross, DPM
James Gutzman, PA-C, FNP, RN