Chief Executive Officer
Sandra T. Mann, PsyD
303-756-9052 Ext. 110

Chief Financial Officer
Don Fetherman
303-756-9052 Ext. 108

Development Director
Marsena (Mars) Holsopple
303-756-9052 Ext. 111

Manager, Finance
Lynn Ross
303-756-9052 Ext. 120

Children First Director
Tiernen Archibald, LCSW
303-756-9052 Ext. 167

Clinical Training Coordinator/ Fellow
Jessie Lieb, MSW
303-756-9052 Ext. 183

Compliance Coordinator/ Fellow
Caroline Matthes, MSW
303-756-9052 Ext. 159

Integrated Care Coordinator/ Senior Fellow
Paige Dvorak, LPCC
303-756-9052 Ext. 156

Access Center Coordinator/ Fellow
Sarah McCune, MA
303-756-9052 Ext. 141

IT Coordinator/ Senior Fellow
Stephanie Dunlap, LSW
303-756-9052 Ext. 154

Children First Senior Clinical Fellow
Maxwell Murray, LPCC
303-756-9052 Ext. 177

Lead Administrative Assistant
Yoshiko Miyamoto, MA
303-756-9052 Ext. 130

Annabel Nakalema
303-756-9052 Ext. 113

Board of Directors

Tamara K. Vincelette, Esq. – President
Attorney – Tamara K. Vincelette, P.C. 

David Telpner – Vice President
Senior Business Development Manager, T-Mobile

Richard Altman, MD
Assistant Professor of Medicine, University of Colorado Denver

Marshall Aster
Retired, CFO, Food Bank of the Rockies

Kayla Casteel
Manager/Commercial Banking Associate at Commerce Bank

Joel Ramiro Chapa, PsyD
Retired, Kaiser Permanente

Renee Cohen
Broker Associate at Coldwell Banker

Eric Cornejo
Retired, Financial Services

Chad Gillam
Special Counsel/Attorney, Hall & Evans, LLC

Bragg Hemme
Healthcare Shareholder at Polsinelli

John Laukkanen, LCSW
Colorado Department of Helathcare Policy and Finance

Sandra T. Mann, PsyD
Chief Executive Officer, Maria Droste Counseling Center

Demetrius Parker
Talent Acquisition Manager, Jeffco

Kim Stromgren, LPC
Maria Droste Group Practice Liaison


We welcome volunteers who are willing to share their creative ideas and gifts. Some of the areas volunteers can help with include:

  • Administrative Projects
  • Computer Projects
  • Marketing
  • Fundraising
  • Grant Writing
  • Good Will Ambassadors

Please contact Marsena (Mars) Holsopple 303-756-9052 Ext. 111 for volunteer opportunities.

Because of confidentiality and liability issues, we do not offer volunteer positions working with clients. If you are interested in a clinical internship, please visit our training page.