BK and our dedicated team of expert instructors is committed to creating safer workplaces. Each team member brings unique skills, real-world experience, and a passion for empowering organizations to proactively address and prevent workplace violence.

Tzviel “BK” Blankchtein

Founder / Lead Instructor

Recognized as an expert in protective services, institutional and corporate security consulting, tactical planning, and instruction, Tzviel “BK” Blankchtein brings a wealth of global experience to his engagements.

BK launched the Masada Group in 2007. Developing a multi-channel business, BK personally shaped the organization, one being healthcare consulting, regulatory compliance, and security training.

The business expanded into the healthcare space, providing risk management, personal protection, and security programs for major healthcare systems, including MedStar Health, Johns Hopkins, Sinai Hospital, Northeast Georgia Health System, Emory University, and Walter Reed National Military Medical Center, BK has provided both proactive and reactive strategies based on institutional needs, risk mitigation opportunities, and talent development requirements.

Interested in becoming an instructor?

Are you passionate about workplace safety and violence prevention? Join our dedicated instructors committed to making a difference in the healthcare industry. We always seek individuals with the expertise and enthusiasm to contribute to our WVP Program.

Find Your Perfect Course

Masada Healthcare, a workplace violence prevention training leader, delivers virtual and in-person classes
designed for healthcare organizations, offering solutions to enhance workplace safety.


Courage Care: Virtual Training

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Courage Care: 4-Hour Training In-Person

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Courage Care: 8-Hour Training In-Person

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Safe Care: Hospital Emergency Response Training

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Safe Care: Safety & Security