Fraternidad-Muprespa Organization Chart
Management Committee
Carmen Rueda Hernandez.Managing Director
Graduated in Information Sciences, Advertising and Public Relations from the Complutense University of Madrid, she has a Master's degree in Occupational Risk Prevention from the University of Salamanca, a Higher Technician in Safety, Hygiene and Ergonomics and a Master's Degree in Sustainability and Corporate Social Responsibility from UNED. Likewise, he has completed his training with strategic management and digital transformation programs in business schools.
He has a solid professional career and extensive knowledge of the Entity, with more than twenty years of experience in positions of responsibility. She joined Fraternidad-Muprespa in 2002 as Provincial Director of Zamora. He later held the Provincial Directorate of Madrid (2013) and the Territorial Directorate of Madrid-Grandes Mutualistas (2020). Since November 2024, he has been at the head of the Central Territorial Directorate-Large Mutualists, a responsibility he held at the time of his appointment.
Before joining the Entity, he developed his professional career in the fields of business management and human resources, an experience that, together with his career at
In July 2026 she was appointed Managing Director of Fraternidad-Muprespa.
Pedro Serrera Cobos.Secretary General 
Senior Telecommunications Engineer from the Polytechnic University of Madrid, he has a Master's Degree in Financial Economic Management from the Center for Financial Studies (CEF), and a PADE, Senior Business Management Program, from IESE.
He participated, from the technology area, in the merger between La Fraternidad and Muprespa in 1999, to join the new entity in 2002,
He has faced challenges from various positions, as director of the Information Systems Center (CIO), leading the digital transformation of the entity and since 2011 as a member of the Management Committee as deputy general director of Information Systems and Services. In 2015, the Purchasing and Services and Works departments were added to its responsibilities, and in 2024 the Contracting department.
In his career, the participation in the construction and provision of the new Fraternidad-Muprespa Hospital in Madrid stands out, inaugurated in 2019 after having achieved the LEED Health Care Platinum certificate.
He has been Secretary General of Fraternidad-Muprespa since July 1, 2025.
Esteban Mate de Miguel.Deputy Director General of Management
Graduate in Physical Sciences, specialty in Applied Physics, from the Autonomous University of Madrid (1999).
In 2023, he completed a Senior Business Management Program (PADE) at IESE.
Previously, he had graduated in Leadership and Transformation in Healthcare Organizations from Deusto Business School (2016) and had completed a Master's Degree in Strategic Management and Innovation Management from the Carlos III University of Madrid (2011). He also completed a Higher Course in Business Intelligence from the School of Industrial Organization (2006) and a Postgraduate Course in Business Intelligence and Knowledge Management from the UOC (2004).
Esteban began his professional career in 1998 at NTT Data and in 2003 he moved to Fraternidad-Muprespa to lead Business Intelligence projects. In 2007, he was appointed Director of Organization from where he implemented the Public Sector Contracts Law, defined the first two Strategic Plans of the Mutual Fund and introduced good practices typical of entities that wanted to face the 21st century with responsibility.
In 2015, he was appointed Deputy Director General of Management from where he leads health policies and the economic benefits granted by the Mutual Fund.
Natalia Fernández Laviada.Deputy Director General of Prevention, Quality and Communication
Graduate in Law (1993). Pursuing a doctorate in the advanced computing, energy and plasmas program at the UCO (2026).
During 2022-2023, he completed an Executive Master's Degree in Corporate Reputation from the University of Navarra. Complete advanced leadership development program, management of business intangibles, ESG, competencies and subjects for senior management and boards of directors.
Master in Occupational Risk Prevention in the three specialties (2000-2002). University postgraduate degree in Organization and Innovation in Business Management (2004). University postgraduate degree in Direction and Management of Health and Social Services (2010). Title of Expert in Social Security (2013). International Master in Protocol and IR (2014). Master Mental health at work (2024)
In 2002 he began his professional career at Fraternidad-Muprespa with technical and management functions until leading the provincial management of Cantabria in 2009.
In 2011 she was appointed deputy general director of Organization and Network, responsible for the management perimeter of the organization, network, mutualists, large companies and national territorial coordination; directing and promoting the new organizational and methodological architecture of the entity (procedures, strategic plans, compliance and communication channels with STK)
In 2015, she was appointed deputy general director of Prevention, Quality and Communication, designing the evolution of the prevention model for professional contingencies - mutual assistance provision - and the culture of health for mutual members, and expanding the management systems in quality, compliance, sustainability and ecological transition.
Institutional spokesperson representing the mutual insurance company in hundreds of interventions at congresses, roundtables and forums on Occupational Health, Health, Diversity and Equality, Leadership, Social Security and Mutual Insurance.
Forget Guadalupe Arenas Romasanta. Deputy Director General of Information Systems and Security
Higher Industrial Engineer in the Mechanical-Construction branch from the Polytechnic University of Madrid. She also has several master's degrees: in Occupational Risk Prevention in the three specialties; in Planning and Design of Health Centers from the Open University of Catalonia; and in Information Systems Management and Business Technology from Nebrija University.
He joined Fraternidad-Muprespa in 1999, to the Fraternidad-Muprespa External Prevention Service. In 2009 she joined Central Services as Head of Maintenance and General Services of the former Central Hospital. After its demolition, in 2014 he joined the Works Department to participate in the construction of the new Fraternidad-Muprespa Habana Hospital. In 2018 he became the head of the Production, Systems and Communications Department within the same Subdirectorate of Information Systems and Services, which he has held since July 1, 2025.
Marta Carretero Martín. Director of the Legal Advice and Services Center
Belonging to the Illustrious Bar Association of Madrid, she graduated in Law from the Autonomous University of Madrid, and is certified as an expert in Social Security by the University of Castilla-La Mancha. His professional development in the world of Law began as a notary officer in Madrid.
After this initial stage he went on to practice law in multidisciplinary offices, specializing in Social and Administrative Litigation jurisdiction, assuming defense in procedures whose functional jurisdiction he has addressed from first instance courts and Superior Courts of Justice throughout the national territory, to the National Court and the Supreme Court.
Linked to Fraternidad-Muprespa since 2019, she has served as a Social Security control lawyer, assuming the procedural defense and advice of the entity. In 2023, she was appointed Deputy Director of the Center for Legal Advice and Services until November 2024, when she took over as Director of the Center.
Manuel Porrua García.Director of the Human Resources and CSR center
Degree in Law from the Distance University of Madrid, degree in Research and Market Techniques from the Open University of Catalonia and a diploma in Statistics from the Complutense University of Madrid. Executive Master in Human Resources (Garrigues), Senior Professional in Human Resources – International (SPHRi), Master in Innovation Management (La Salle) and Master in Information Systems Management (IDE-CESEM).
He started at
Arturo Ruiz Díez.Financial and Services Center Director
Higher Industrial Engineer from the Polytechnic University of Madrid.
He began his professional career in information systems consulting, always in the financial field. In 2004 he joined Fraternidad-Muprespa as project director of the new economic information system. He subsequently held different positions in the general subdirectorate of Information Systems and Services. In 2008 he was appointed director of the Payments, Accounting Records and Inventory department and since October 2019 he has been director of the Financial Accounting center, thus continuing his link with the economic area in the development of financial systems and their integration into the Social Security accounting system.
Remunerations
The remuneration of the Managing Director and the rest of the staff who perform executive functions at 71.8 of the Consolidated Text of the General Law of Social Security (in the wording given to it by Law 35/2014, of December 26, which modifies the Consolidated Text of the General Law of Social Security, in relation to the legal regime of the Mutual Insurance Companies for Work Accidents and Occupational Diseases of Social Security).
The regime of said remunerations is pending regulatory development (fifth final provision of Law 35/2014).
