Meet Our Staff

Staff by location

Fairfax
Leesburg (Lansdowne)
Manassas
Reston
Michelle Dickerson, LPC, LMFT
Rita Buccieri, M.Ed., CSAC
Yuri Coronado Prieto, CSAC
Chris Leibowitz, LCSW, CSAC
Dawn C. Brower, M.S., CSAC, SAP
Kara Sheehan, LPC, ATR
Alexandra Roberts, LPC
Anu Mathew, PMHNP
Darris Wallner, LPC
Rebecca Mello, LCSW
Kristin Bultman, LCSW
Jenn McCue, LCSW
Luke Brogan, MSW
Olivia King, M.A.
Matt Partlow, MSW
Jessica Kreisler, LCSW, CSAC-S
Hannah Thornton, MSW
Alia Haddad, M.A.
Kevin Clark, M.S., CSAC
Samer Yafi, CSAC
Sydney Collo
Lisa Bloch Yafi
Mariana Garcia
Liz Fernandez, LPC

All Clinicians

Anu Mathew, PMHNP, psychiatric nurse practitioner at ACTIVV in Fairfax, Virginia
Portrait of Jose Flores-Colon at ACTIVV Mental Health
Portrait of Rebecca Mello at ACTIVV Mental Health
Portrait of Darris Wallner at ACTIVV Mental Health

Rebecca Mello
LCSW

Clinical Director, Therapist

Darris Wallner
LPC

Clinical Supervisor, Therapist

Portrait of Michelle Dickerson at ACTIVV Mental Health
Portrait of Kara Sheehan at ACTIVV Mental Health

Michelle Dickerson
LPC, MFT

Kara Sheehan
LPC, ATR

Portrait of Kristin Bultman at ACTIVV Mental Health

Clinical Supervisor, Therapist

Clinical Supervisor, Therapist

Portrait of Liz Fernandez at ACTIVV Mental Health
Lindsay Moody

Kristin Bultman
LCSW

Therapist

Liz Fernandez
LPC

Therapist

Portrait of Alexandra Roberts at ACTIVV Mental Health
Portrait of Jenn McCue at ACTIVV Mental Health

Alexandra Roberts
LPC

Therapist

Jenn McCue
LCSW

Therapist

Portrait of Kelly Hoskins at ACTIVV Mental Health
Portrait of Sarah Carter at ACTIVV Mental Health
Sky Simmons, M.A.

Kelly Hoskins
LCSW

Therapist

Therapist

Sarah Carter
LPC

Portrait of Rita Buccieri at ACTIVV Mental Health
Portrait of Luke Brogan at ACTIVV Mental Health

Rita Buccieri
M.Ed., CSAC

Resident Therapist

Luke Brogan
MSW

Resident Therapist

Portrait of Olivia King at ACTIVV Mental Health
Portrait of Jessica Kreisler at ACTIVV Mental Health

Olivia King
M.A.

Resident Therapist

Jessica Kreisler
MSW

Resident Therapist

Portrait of Matt Partlow at ACTIVV Mental Health
Portrait of Hannah Thornton at ACTIVV Mental Health
Portrait of Kevin Clark at ACTIVV Mental Health
Kelly Hoskins, LCSW

Resident Therapist

Resident Therapist

Portrait of Dawn Brower at ACTIVV Mental Health
Portrait of Yuri Coronado Prieto at ACTIVV Mental Health
Portrait of Samer Yafi at ACTIVV Mental Health

Yuri Coronado Prieto
CSAC

Substance Use Counselor

Samer Yafi
CSAC

Substance Use Counselor

Portrait of Mariana Garcia at ACTIVV Mental Health
Portrait of Lindsay Moody at ACTIVV Mental Health

Psychiatric Mental Health Nurse Practitioner

Anu Mathew
PMHNP

Psychiatric Mental Health Nurse Practitioner

Jose Flores-Colon
PMHNP

Sarah Carter, LPC

Matt Partlow
MSW

Therapist

Hannah Thornton
MSW

Resident Therapist

Portrait of Alia Haddad at ACTIVV Mental Health

Alia Haddad
M.A.

Sky Simmons
M.A.

Kevin Clark
M.S., CSAC

Resident Therapist

Dawn C. Brower
M.S., CSAC, SAP

Resident Therapist

Master’s Level Counseling Intern

Mariana Garcia

Lindsay Moody

Master’s Level Counseling Intern

Administrative Staff

Portrait of Chris Leibowitz at ACTIVV Mental Health

Chris Leibowitz
LCSW, CSAC

CEO, Therapist

Portrait of Lisa Bloch Yafi at ACTIVV Mental Health
Portrait of Sydney Collo at ACTIVV Mental Health
Jose Flores-Colon, PMHNP

Lisa Bloch Yafi

Practice Coordinator

Sydney Collo

Operations Manager

Staff by location

Fairfax
Leesburg (Lansdowne)
Manassas
Reston