Marian Spiess, MA, LPCC, LADC, is a dually licensed clinician with experience in community-based mentalhealth care, co-occurring treatment services, and adolescent autism services. She brings a blend ofclinical expertise and leadership experience, and she enjoys helping build systems that improve outcomesfor clients while supporting strong, sustainable clinical programs. Marian has a special interest inpolicy development, [...]
Amari Rivers, MSW LGSW
I began working in the substance use field when I was 20 years old, and from there, I knew that it was afield that I wanted to work in as a mental health professional. I may be young, but my experience has ranged from working as a recovery specialist to now as an MHP over [...]
Charlie Martinson, BA, LADC-S
Charlie earned his bachelor’s degree from Southwest Minnesota State University, with a major in psychology, and an LADC certificate from Ridgewater College. Charlie has worked in the field of Chemical Dependency for over 10 years with experience in both residential and outpatient settings. Charlie utilizes a client-centered approach tailoring a treatment plan specifically to individuals. [...]
Diederik Durst, LADC, LPCC Intern
Diederik is currently completing his clinical practicum at Progress Valley, where he provides both individual therapy and counseling, as well as facilitates group sessions focused on co-occurring disorders, addiction recovery, and psychoeducation.Prior to joining Progress Valley, Diederik worked for two and a half years at Fairview Riverside on an intensive inpatient unit for children and [...]
Janelle Mellgren, LADC-S
Janelle has been a Licensed Alcohol and Drug Counselor (LADC) for over a decade serving in roles such as clinician, clinical supervisor, and program manager in co-occurring disorder treatments. Currently, Janelle is pursuing her master’s degree in Counseling and Psychological Services, with the goal of obtaining her Licensed Professional Clinical Counselor (LPCC) licensure. Throughout her [...]
