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About Us

Meet Our Team

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  • Anton Kuznetsov
    Anton Kuznetsov
    Chief Executive Officer – CEO
  • Erika N. Kane, M.D. F.A.S.A.M.
    Erika N. Kane, M.D. F.A.S.A.M.
    Chief Medical Officer
  • Nicole Diffenderfer
    Nicole Diffenderfer
    Chief Human Resources Officer
  • Keonna Armstrong
    Keonna Armstrong
    Vice President of the Revenue Cycle
  • Dr. Joseph H. O’Leary, MD
    Dr. Joseph H. O’Leary, MD
    Medical Director
  • Matt Baker
    Matt Baker
    Vice President of Growth
  • Genevieve King
    Genevieve King
    Vice President of Operations and Compliance
  • Kaitlin McCarthy
    Kaitlin McCarthy
    Director of Admissions
  • Eric Shapiro
    Eric Shapiro
    Chief Financial Officer
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Kolmac Integrated Behavioral Health Centers is a network of intensive outpatient (IOP) addiction treatment centers in Maryland, Pennsylvania, northern Virginia, and Washington, DC. The Kolmac Model – developed by George Kolodner, M.D. more than 50 years ago – provides easier access to treatment, greater program flexibility, and dramatically lower costs traditional inpatient programs – with equal success and effectiveness. In addition to providing all three phases of addiction treatment, including detoxification, rehabilitation, and continuing care, Kolmac offers treatment for co-occurring psychiatric disorders, education and support for family members, and helpful resources for referring professionals.

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Eric Shapiro
Chief Financial Officer

Eric Shapiro serves as the Chief Financial Officer for Kolmac Integrated Behavioral Health and Concerted Care Group (CCG). Eric earned his Bachelor of Business Administration from James Madison University. He makes sure that integrity, diligence, and perseverance are the core values that drive his team and himself to provide a sound platform for Kolmac and CCG’s clinicians to treat its patients.

Eric began his finance career in 1991, in various positions in finance within the Baltimore metro healthcare market,

including Genesis Healthcare, Ashley Addiction Treatment, and St. Agnes Hospital.

In his past time, Eric makes sure that he is available for his travels and tries out different recipes to hone his gourmet cooking.