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MS2 Team

Emilio S. Belaval MD, FAAEM

Dr. Belaval is the President of Medical Strategies & Management Systems, LLC “MS2” and also serves as Senior VP for Emergency Excellence, LLC “EmEx”. He has extensive healthcare leadership and management experience as a former ED Chairman, Medical Director and CMO. As a consultant, Dr. Belaval has introduced several hospitals to business enterprise change methodologies and helped develop some of the most efficient Hospital operations in the country. Dr. Belaval has lectured and published articles on patient flow redesign and Hospital change management and routinely advises and collaborates with other healthcare consulting firms on patient flow redesign projects. He is Board Certified in Emergency Medicine and completed his training at Boston Medical Center.


Rollie Perea RN, MSN, NP

Mr. Perea has over 26 years of clinical experience both as a nurse, and as a nurse practitioner in both Emergency and Critical Care settings. In addition, he has been Urgent Care Nurse Manager, Clinical Nurse Specialist, and ED Clinical Director. Rolando has also worked in the Healthcare IT industry as a Senior Consultant and currently works as an eICU Critical Care NP. He has been an adjunct faculty for both UMass Medical School NP program and MGH Institute of Health Professions and has Visiting Scholar status at Boston College’s School of Nursing. He has been a regional and national speaker on various healthcare topics and holds leadership positions with a national nursing organization. He graduated with his BSN from Boston College, MSN from MGH-IHP and is pursuing his DNP in nursing administration. Rolando has extensive expertise in implementing change management processes, EMR implementation and nursing mentorship.


aSandra MacKenzie MSN, CRNP

Sandra MacKenzie CRNP has extensive clinical and hospital administrative experience as a former nurse, Charge Nurse, Nurse Manager, Nursing Supervisor and as an Advanced Nurse Practitioner working in ED, ICU and Outpatient settings. Besides being a Senior Consultant with MS2, Ms. MacKenzie is active in clinical practice and is part of the nursing faculty at the University of RI where she still teaches. Ms. MacKenzie obtained her MSN and NP degrees from the University of RI with honors.

Kevin O'Connell MD, FACEP

Dr. O'Connell is a former Emergency Department Chairman and Hospital Chief Medical Officer with experience in Quality Assurance Programs, medical staff conflict resolution, and Hospital regulatory compliance. Dr. O'Connell is still active in practice and, as an MS2 consultant, he helps clients with regulatory and Medical Staff related issues. Dr. O'Connell attended medical school at the University of Chicago, and completed his emergency medicine training at the University of Massachusetts Medical Center.



Monique Savoie MBA

Ms. Savoie serves as General Business Manager and Customer Support Coordinator for MS2. She has extensive experience in business and systems analysis, database management, financial and budget analysis, SDLC and project management. She also has experience in provider insurance company credentialing and insurance contract negotiations as well as medical coding and billing. Monique has a Bachelors Degree in Psychology, Associates Degree in Computer Programming and a MBA with a concentration in Healthcare Systems Management. As Client Support Coordinator for MS2 Monique provides communications, data management and other non-clinical support to our clients.



aEnrique Vazquez MD, MBA

Dr. Vazquez has extensive healthcare leadership and management experience. He has worked as Vice President for Medical Affairs as well as Chief Quality and Informatics Officer. He is extensively trained in the Lean Six Sigma methodology and is a certified Lean Six Sigma in Healthcare facilitator. As a consultant, he has successfully applied the Lean Six Sigma methodology, human factor engineering and high reliability principles to various process improvement initiatives. Dr. Vazquez is board certified in Internal Medicine and Rheumatology and is actually completing additional certifications in Health Information Technology and Health Information Exchange. He also works on a part-time basis for the Joint Commission as a hospital physician surveyor.


gJoseph Twanmoh MD, MBA

Dr. Twanmoh is the Senior VP of the Mid-Atlantic Division of MS2 and is in charge of leading and supervising our consulting teams in this region. Dr. Twanmoh is a Lean certified physician with expertise in change management and has over 20 years of leadership and management experience turning around Emergency Departments, redesigning hospital processes, and improving patient flow.

During his career, Joseph has acted as a Medical Director, ED Chairman, and as the Director for Health Systems Innovation for the Northern Division of one of the Largest ED contract management firm in the US.

Joseph is a graduate of the UMDNJ-Robert Wood Johnson Medical School and received his MBA from the Johns Hopkins University Carey School of Business. He is past president of the Maryland Chapter of the American College of Emergency Physicians, serves on the Practice Committee for the American College of Emergency Physicians, and is a fellow of both, the American College of Emergency Physicians and the American Academy of Emergency Medicine.



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