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ASG's Leadership
About ASG’s Leadership Team
Our leadership team is committed to delivering on the vision of ASG: to create solutions that fuel business transformation and enable our customers to seize the opportunities of the Information Technology (IT) economy.
Sara Singh M.D., FAPA
President & Chief Executive Officer
Dr. Sara Singh is certified with American Board of Internal Medicine and American Board of Psychiatry and Neurology. She is an active member of Health Information and Management Systems Society. Dr. Singh has spent the majority of her professional career in senior leadership roles with health care organizations…
Mandeep Singh PMP, CISM
Chief Operation Officer
Mandeep Singh, COO and CTO of A Square Group, is an ITIL expert and certified CIO. He excels in leading large organizations, particularly in healthcare and technology, towards modern and efficient structures. With a focus on enhancing care quality and transparency, he has successfully directed multiple government…
Jeff Turner, PMP, MBA
Vice President, Health & Federal Civilian
Jeff Turner is a seasoned Business Executive overseeing Federal contracts in Enterprise Architecture, IT, Program Management, and Partner Relations. With 25+ years of experience, he delivers full life-cycle IT solutions and manages programs for prestigious agencies. Formerly at Northrop Grumman, Jeff held…
Larry Janeshek
Chief Information Security Officer
Larry Janeshek ensures A Square Group’s information security. He manages strategy, cyber controls, threat management, and integration. With prior cybersecurity roles for corporate and government clients, he brings expertise as a former police officer and Army veteran, holding a Master’s in Cybersecurity from DePaul…
Lisa Carr, SHRM-CP, PHR
Director, Human Resources & Support Services
Lisa Carr is ASG’s Support Services director with 25+ years of HR expertise. She oversees operations and specializes in Employee Relations, Benefits, Recruiting, Compensation, and Process Improvement. She also manages facilities, IT support, payroll, and contracts.
Geoffrey Xiao
Senior Vice President, Digital Transformation
Geoffrey Xiao is a seasoned leader in AI/ML-based SaaS solutions and MLaaS architectures. He co-develops technical strategies, maintains an innovative roadmap, and supports client modernization projects. With a background in software engineering and AI/ML-based products, Geoffrey holds an MBA and a Master of…
Patrick “Dean” Papa
Program Director
Dean Papa has 20+ years of global business and technology leadership. He specializes in application and infrastructure consulting, transformation, modernization and migration, data center exit delivery, and cloud engagements. With expertise in government and Fortune 100 projects, Dean excels in strategy…
Anchulee Raongthum, MBA-HCM, MSIDT
Director of Outreach, Education & Support
Anchulee Raongthum leads learning & development and empowers cross-functional teams to excel in healthcare outreach, technical support, and program innovation. With 15+ years of experience, she has a successful track record in business development, marketing, and program/project management for government health…
Karl Laubengayer
Zach Main, PMP
Jeff Sutton
Program Manager
Jeff Sutton is a Senior Business Leader with 40+ years of IT knowledge and experience supporting multiple Government Departments (DHS, DOD, DOJ and DLA), and Fortune 500 Commercial Clients globally. He has a proven track record for success, utilizing his years of experience, high-level of customer support…
