Dr. Bartlomiej Berger, M.D.
Specialist in gynaecology, gynaecological endocrinology and reproductive medicine

Dr. Berger, M.D., who has been a senior doctor at the MVZ PAN Institute since January 2020, studied human medicine at the Rheinische Friedrich-Wilhelms-Universität and passed his second state examination in 2009. He then worked as an assistant doctor in the gynaecological clinic of the Cuxhaven Hospital and in the Clinic for Gynaecology and Reproductive Medicine of the RWTH Aachen University Hospital. In Aachen he also completed his training as a specialist in gynaecology with a focus on gynaecological endocrinology and reproductive medicine. 

Dr. Mirko Dannhof
Specialist in gynaecology, gynaecological endocrinology and reproductive medicine

Dr. Dannhof, M.D. who has been working as head doctor at the MVZ PAN Institute since 2003, studied human medicine in Frankfurt am Main, where he received his doctorate in 1992 at the University Women's Hospital. He completed his residency in obstetrics and gynaecology at the local Northwest Hospital from 1993 to 1999. After moving to the Klinikum Schwäbisch-Gmünd, where he worked as a senior doctor, he qualified further with a focus on gynaecological endocrinology and reproductive medicine.

In 2003 Dr. Dannhof moved to Cologne, joined the group practice Dres. Palm, Sasse and Pütz and took over his position in the PAN clinic. In 2006, he received the authorisation for further training in the field of gynaecological endocrinology and reproductive medicine. In 2012, Dr. Dannhof was appointed by the German Accreditation Body as an expert in the field of reproductive medicine and has also been a member of the Sector Committee Medical Laboratories of Division 3 of the German Accreditation Body since 2013.

Dr. Dr. Johan Denil, MD
Specialist in Urology and andrology 

Dr. Dr. Denil, a specialist in andrology and urology with a focus on andrology, fertility and microsurgical techniques, has been a member of the medical team of the urology department of the PAN Clinic since 1999. Together with our fertility centre he looks after patients and their partners. Mr. Denil, MD, studied biomedicine at the Catholic University of Leuven, Belgium, before moving to the University of Michigan, USA, to work scientifically and clinically in the field of andrology. 

Priv. Doz. Dr. Dolores Foth
Specialist in gynaecology, gynaecological endocrinology and reproductive medicine

Dr. Dolores Foth, chief doctor at the MVZ PAN Institute since 2010 and head of our Clinical Endometriosis Centre since 2013, studied human medicine at the Ernst Moritz Arndt University of Greifswald, where she received her doctorate in 1993. She completed her training as a specialist in gynaecology and obstetrics at the clinic and polyclinic there. After a research stay in North Carolina, USA, she qualified further in the field of gynaecological endocrinology and reproductive medicine. From 1999 to 2010, she worked first as a specialist, then as a senior doctor for gynaecology and obstetrics in the Department of Reproductive Medicine and Endocrinology in the Clinic and Polyclinic for Gynaecology and Obstetrics at the University of Cologne, where she also became head of the functional area for gynaecological endocrinology and reproductive medicine in 2004. In 2003, she received the authorisation to teach gynaecology and obstetrics, in 2004 the authorisation for optional further training in gynaecological endocrinology and reproductive medicine and in 2008 the authorisation for further training in gynaecological endocrinology. Since 2010 she has been working in the group practice Drs. Palm and Partner.

Dr. Julia Holtschmidt, M.D.
Specialist in gynaecology, gynaecological endocrinology and reproductive medicine

Dr. Julia Holtschmidt, chief doctor at the MVZ PAN Institute, studied human medicine at the Technical University of Dresden, the Justus Liebig University of Gießen and the Albertus Magnus University of Cologne. After completing her studies in 2006, she worked as an assistant doctor in the department of gynaecology and obstetrics at the Maltester Hospital Bonn/Rhein-Sieg and the St. Elisabeth Hospital Cologne-Hohenlind before moving to the PAN Clinic in 2012 and qualifying as a specialist in gynaecological endocrinology and reproductive medicine. 

Dipl. Biol.Manuel Kernbach
Dipl. Biologist, Laboratory for Andrology and Reproductive Medicine

Mr. Manuel Kernbach, graduate biologist at the andrology and reproductive medicine laboratory of the MVZ PAN Institute at the PAN Klinik am Neumarkt, studied biology at the University of Cologne. After completing his studies, he worked in the research and development department of a well-known biotechnology and biomedicine company. He has been working in the andrology and reproductive medicine laboratory at the MVZ PAN Institute since 2017. Mr Kernbach became deputy laboratory manager in 2018 and took over as laboratory manager in 2021.

In 2020, he completed the specialist qualification in "Human Reproductive Biology" (AGRBM). He has been a "Clinical Embryologist" since 2021 and a "Senior Clinical Embryologist" (ESHRE) since 2024.

Dr. Aysegül Klapperich, M.D.
Specialist for human genetics

Dr. Aysegül Klapperich, specialist in human genetics at the MVZ PAN Institute, studied human medicine at Marmara University in Istanbul. After completing her studies in 2013 and obtaining a German licence to practise medicine, she worked as an assistant doctor in the Department of Human Genetics at Ruhr University Bochum, where she obtained her doctorate and further qualified as a specialist in human genetics. After completing her clinical year of specialist training at the LVR Clinic in Bonn, she obtained her specialist title in 2019. She has been working at the MVZ PAN Institute and the MVZ Human Genetics Cologne since 2020.

Dipl. Psych. Andrea Langness
Psychological Psychotherapist

Ms Andrea Langness is a psychological psychotherapist at the MVZ PAN Institute and accompanies people on their therapeutic journey with great empathy and professional competence. She completed her psychology studies at RWTH Aachen University, followed by training as a behavioural therapist at the Cologne Teaching Institute for Behavioural Therapy (KLVT). She gained practical experience at the LVR Clinic in Langenfeld and in the outpatient department of the KLVT, among other places. After receiving her licence to practise, she worked in a private practice and also trained in psychological counselling for infertility – a topic that is particularly close to her heart. Ms Langness has been part of the team at the MVZ PAN Institute since 2019, supporting patients in finding individual solutions to their mental health challenges.

Dr. Georg Mansmann
Specialist for Internal Medicine, Endocrinology and Diabetology

Dr. Georg Mansmann studied human medicine in Cologne and Montpellier, France. He spent his time as an assistant doctor at the Department of Hematology and Oncology at the University Hospital of Cologne, where he was the scientific coordinator of the Malignant Lymphoma Competence Network. In 2001, he moved to the Clinic for Endocrinology, Diabetology and Rheumatology at the University Hospital Düsseldorf as an assistant doctor. He is a specialist in internal medicine with a focus on endocrinology and diabetology and has numerous special qualifications.  

Prof Dr. med. Dirk Müller-Wieland
Specialist in internal medicine, endocrinology, diabetology and metabolis

Prof. Dirk Müller-Wieland, MD, studied medicine in Hamburg. He completed his specialist training as an internist with a focus on endocrinology, diabetology and metabolism at the Medical Core Clinic and Polyclinic (Director: Prof. Dr. H. Greten) of the UKE in Hamburg and at Clinic II and Polyclinic for Internal Medicine (Director: Prof. Dr. W. Krone) of the University of Cologne. In 2006, he moved to the First Medical Clinic at the Asklepios Clinic St. Georg in Hamburg as chief physician. From 2017 to 2019, he was president of the German Diabetes Society (DDG). 

Dr. Sassan Nazari
Specialist in urology and andrology

Dr. Sassan Nazari, specialist in urology and andrology at the PAN Clinic and Fellow of the European Board of Urology, studied medicine at Semmelweis University in Budapest, Hungary, and at Christian Albrecht University in Kiel. From 1999, he worked as a research assistant in the urology department at the University of Cologne, where he also obtained his doctorate in 2003. He has been part of the medical team in our urology department since 2004.

Dr. Stefan Palm
Specialist in gynaecology, gynaecological endocrinology and reproductive medicine

Dr. Palm, medical director of the MVZ PAN Institute and the PAN Clinic, studied human medicine at the Ludwig-Maximilians University in Munich, where he received his doctorate in 1972.
After his licence to practice medicine in 1973, he worked as a research assistant at the Surgical Clinic of the University of Munich. In 1976/77 he was a fellow at the C. S. Mott centre for Human Growth and Development at Wayne State University in Detroit, USA. Back in Germany, he worked as a research assistant at the University Women's Hospital in Munich, where he qualified as a specialist in gynaecology and obstetrics in 1984. Since 1981 he has been a member of the working group for extracorporeal fertilisation there: Follicular micromilieu and in-vitro fertilisation (DFG funding). 

In 1988, Dr. Palm settled in Cologne, where he established the Centre for Gynaecological Endocrinology and Reproductive Medicine in the joint practice in the Haubrichforum. In 1989, he acquired the authorisation for further training in gynaecology and obstetrics. In 1997, she completed further training in the areas of specialist knowledge for laboratory examinations in gynaecology and obstetrics as well as in gynaecological endocrinology and reproductive medicine. In 1999 he founded the PAN Klinik am Neumarkt with an interdisciplinary centre for gynaecological endocrinology and reproductive medicine (gynaecology, urology/andrology, human genetics and psychosomatics). In 2002, he laid the foundation stone for the PAN Institute for Endocrinology and Reproductive Medicine and thereby for today's MVZ PAN Institute, which is recognised as a clinical training centre.   

Theresa Reckers
M.Sc. Biologist, Andrology and Reproductive Medicine Laboratory

Ms Theresa Reckers, embryologist at the MVZ PAN Institute, studied life sciences at the University of Münster. After completing her studies, she worked as a biologist in the IVF laboratory at Bonn University Hospital. She has been working in the andrology and reproductive medicine laboratory at the MVZ PAN Institute since July 2024.

Priv. Doz. Dr. Torsten Schmidt
Specialist in gynaecology, fertility surgery (MIS III)

Dr. Torsten Schmidt, Deputy Medical Director of the PAN Clinic since 2011, studied human medicine in Greifswald and completed his training as a specialist in pathology and gynaecology and obstetrics in Greifswald and Cologne. From 1997 to 2003 he worked as a senior doctor in the field of endoscopic surgery and endometriosis treatment and as a personnel doctor at the University Women's Hospital in Cologne. At the same time, he established himself as a gynaecologist in the Centre for Operative Gynaecological Endoscopy at the PAN Clinic in 2002. He received his teaching licence in 2011.  

Dr. rer. nat. Carlo Schmitz
M.Sc. Biotechnologe, Laboratory for Andrology and Reproductive Medicine

Dr Carlo Schmitz, embryologist at the MVZ PAN Institute, studied biotechnology at RWTH Aachen University, where he obtained his doctorate in 2019. After completing his doctorate, he spent two more years at the University Hospital RWTH Aachen as a research assistant, conducting research on the molecular mechanisms of fertilisation. Since July 2021, he has been working in the andrology and reproductive medicine laboratory at the MVZ PAN Institute. Mr Schmitz is currently undergoing further training to obtain the professional qualification ‘Human Reproductive Biology’ (AGRBM).

Dr. Susanne Stemmler, M.D.
Specialist in human genetics

Dr. Susanne Stemmler, physician at the MVZ PAN Institute, studied human medicine at Ruhr University Bochum. After completing her studies in 2000, she initially worked as a doctor in training in the Department of Gynaecology and Obstetrics at Marien Hospital in Herne and then as an assistant doctor in the Department of Gynaecology and Obstetrics at EN-Süd-Klinikum Schwelm. In October 2002, she moved to the Department of Human Genetics at Ruhr University Bochum, where she qualified as a specialist in human genetics and, after passing her specialist examination in 2007, was also involved in further training before moving to the PAN Clinic in 2017. Since 2020, she has also been working at the MVZ for Human Genetics in Cologne. 

Dr. Maike Warnstedt
Certified biologist, andrology and reproductive medicine laboratory, deputy medical device safety officer

Dr Maike Warnstedt, certified biologist at the andrology and reproductive medicine laboratory of the MVZ PAN Institute at the PAN Clinic on Neumarkt. 
Deputy laboratory manager until June 2014.
Qualified as an ESHRE Senior Clinical Embryologist in 2017.