Health Care Systems GmbH

Making patient data smart

HCSG offers solutions for digital precision medicine.

We combine medical data with psychosocial data creating actionable information and risk predictions to improve individual health outcomes. Our highly flexible IT platform allows large scale implementation for a multitude of patient conditions and care situations.


Our highly flexible IT platform allows large scale implementation for a multitude of patient conditions and care situations.


We combine medical data with psychosocial data. We create actionable information and risk predictions to improve individual health outcomes.


HCSG offers digital solutions for digital precision medicine.


Precision Medicine

US National Institute of Health:

“Precision Medicine refers to the tailoring of medical treatment to the individual characteristics of each patient. It does not literally mean the creation of drugs or medical devices that are unique to a patient, but rather the ability to classify individuals into subpopulations that differ in their susceptibility to a particular disease, in the biology and/or prognosis of those diseases they may develop, or in their response to a specific treatment. Preventive or therapeutic interventions can then be concentrated on those who will benefit, sparing expense and side effects for those who will not.”



HCSG - solutions for digital precision medicine


Solution of choice

Powerful technology to allow digital precision medicine at large scale

HCSG builds on a highly flexible IT platform which allows customization for a multitude of different patient conditions and care situations. The software is designed to integrate a variety of external systems and devices. Its enterprise level architecture supports both pilot studies and large scale implementations.

Disease areas

Our platform supports multiple chronic conditions, as the workflows can be adapted to the needs of the chronically ill in various health care environments. One core requirement is always addressed: Helping participants to change their behavior for a healthier life.

Full support package

Intelligent solutions require adaptation to the specific needs for each area of application. We provide full support in all relevant areas including technical expertise, medical knowledge, fulfillment of legal and regulatory aspects, under consideration of local customs for coaching and psychosocial stratification.


Multiple Data Sources

We can connect any third party data source to our platform, e.g. databases or devices. Additionally, we offer proprietary software to run a gateway used for transmission of patient data. It is designed to assure connectivity with all devices using established standards. We exploit latest technology to improve patients’ lives.

Full support package

Intelligent solutions have to be adapted to the specific needs for each area of application. Our partners can expect full support in all relevant areas. Besides technical expertise we support them with medical knowledge, fulfillment of legal and regulatory aspects, and consider local customs for coaching and psychosocial stratification.

Regulatory requirements

Our partners in the health insurance, pharmaceutical and medical device industries operate in highly regulated environments. Consequently, our services are built on certified and validated operating procedures and IT solutions. In close collaboration with our partners we create effective and efficient solutions meeting regulatory requirements, such as data protection or drug safety. This includes patient communication, data base validation, work flow documentation or employee training.

Medical needs

Based on our extensive experience in discussing complex medical matters in specific patient settings and health care environments, we are able to support our customers with program design. Our platform has demonstrated its flexibility in clinical trials and outcome studies, e.g. through extension of the range of symptoms we are monitoring.

Local customs

Health care systems and health care delivery vary from country to country. We adapt our services accordingly, e.g. by taking into account patient communication, physician involvement, or integration of locally established best practices into the solution design.


Partner of choice

“Going beyond the pill” using outcome-based contracts

Health Care Systems GmbH has emerged with corvadis® as the partner of choice to pave the way for new payment schemes used by the industry in collaboration with payors.

Partner for payors

Payors have always thoroughly assessed the results of their investments in secondary prevention programs like corvadis®, with positive results.

Partner for industry

Pharmaceutical and medical device manufacturers increasingly realize that the way they currently charge their products will move away from a pay-per-use basis to a result-oriented structure based on the medical outcomes and cost savings achieved.

Who we are

Professionals with more than 15 years' experience

Health Care Systems GmbH is comprised of professionals with more than 15 years' experience in the relevant industries: IT, medicines, consulting in Health Care with special emphasis on payors, the Pharmaceutical Industry and consumer goods.


Dr. Josef M.E. Leiter, Co-Founder

Josef is driven to improve quality and efficiency of health care delivery. He is a medical entrepreneur who built several successful companies in areas such as telemedicine, dental care and home care services. Josef was a partner of McKinsey & Co., Research Assistant Professor at the Mount Sinai School of Medicine in New York, NY


Dr. Alexander Molnar, Co-Founder

Alexander believes that digital precision medicine will help individuals to improve their health. He is a medical entrepreneur and has built and managed several successful companies with a focus on health care IT. Previously, Alexander was a consultant at McKinsey & Co. He holds a doctorate in microbiology and was a research and clinical fellow in Cardiology at the Ludwig Maximilians University Munich.


Karim Derouiche, Partner

Karim leverages payor and industry relations with the value brought by HCSG. He has been focusing on telehealth since 2012 and held previously roles as board member of a laboratory diagnostics firm, as Managing Director for Novartis Pharma Singapore and as European Head of Hospital Business for Procter & Gamble. He has a degree in Business Administration.


Dr. Christian Kloss, Managing Partner

Christian is excited by bridging health technology, the latest thinking in medicine and behavioral science Christian started his career as a Medical Doctor. He then consulted Health Care clients for McKinsey before becoming Medical Head Europe for a diagnostic company, as well as Managing Director of a leading eHealth company in Europe.


Sandra Rosendahl, Chief Operating Officer

Sandra is committed to training and to managing operations. Prior to joining HCSG, Sandra has been leading the operations of Europe’s largest eHealth enterprise and held the role as HR Manager DACH for a global medical diagnostics firm. Sandra holds degrees in Organization and Leadership Development from Koblenz/Landau University and in nursing care science and is also a certified nurse.


Robert Krütten, CFO & Partner

Robert co-founded several companies, amongst others Europe’s largest tele-medical corporation and acted as their CFO. Prior to joining HCSG, Robert held various senior executive financial positions for private and public companies. Robert earned a degree in finance and taxation and holds an MBA.


Lorenz Lehmann, CTO

Lorenz holds a master’s degree in computer science and has a strong knowledge in software development, product management and leadership. He is passionate about complementing healthcare with technology to increase efficiency and improve patient outcomes. Before joining HCSG he worked as a management consultant at BCG Platinion and built an AI & Big Data platform for the Pharmaceutical industry from ground up a Veeva Systems.


Dr. Patrick Bregenhorn, Medical Director

Today, medicine is more than ever an interdisciplinary task. Digitalization not only presents a historic challenge, but also the opportunity to ensure the best professional and ethically required care for patients. By integrating a wide variety of disciplines, new and better solutions for patients, relatives and actors in the healthcare system are possible.When it comes to implementation, Patrick's work as a doctor in the field of anesthesia and emergency medicine, his degree in business administration with a strong focus on engineering (mechanical engineering) at the Technical University of Munich and his many years of experience in management consultancies (lean thinking, personnel development) are beneficial for all involved.

Health Care Systems GmbH
Wolfratshauser Straße 42
82049 Pullach i. Isartal

T: +49 (0) 89 / 444 889 100
F: +49 (0) 89 / 444 889 350

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