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Contact your local Product Specialist

David Wemans

Director International Sales & Marketing

David is passionate about driving regeneration, science and connecting minds and hands. With more than a decade working at Geistlich David has built long lasting relationships with clinicians, scientists, researchers as well as sales and marketing professionals around the world. As a multilingual team player with a positive, proactive, ambitious, and a creative attitude David wants to get to know you and to shape the regenerative future with you.

Phone: +41414925649

David Wemans
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Steven Kramer

International Product Manager Sports Med.

Steven joined the medical industry in 2016. As a product manager with a strong “doing”-philosophy, he is keen on working closely with the surgeons to get the best possible inputs from what the customer needs. Find Steven on the tennis court or discuss with him about cars and motorcycles during a hike in the mountains!

Phone: +41414925375

Steven Kramer
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Arpad Kassa

Sen. International Sales Manager Sports Med.

Arpad is part of the medical industry for more than 20 years and with Geistlich since 2015.

As part of the international sales team he manages the distributor markets in Sports Med. Over the years he continuously grow his network, build new and lasting relationships to key opinion leaders, business partners and researchers.

Trust and loyalty, being part of an ambitious and motivated team, exploring new pathways and strategies are the key to his success.

Get in touch with Arpad, become part of the regenerative world.

Phone: +41414926709

Arpad Kassa
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Evelyne Hasler, PhD

Sen. International Scientific Education Manager Sports Med.

Evelyne has been in orthoregeneration for over 20 years. During this time, she has built long-standing relationships with pioneers and opinion leaders in the field of meniscus and cartilage regeneration and has gained a high level of expertise.
In 2019, she joined Geistlich as Medical Education Manager and enjoys organizing educational programs for regeneration experts to exchange knowledge and ideas.

Evelyne loves to do sports and is passionate about helping surgeons to restore their patients joint function using regenerative techniques such that the patients can lead an active lifestyle.
Evelyne looks forward to meeting you at a Geistlich event.

Phone: +41414925341

Evelyne Hasler
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Lukas Allamand

Key Account Manager Switzerland

Lukas is the Key Account Manager responsible for Switzerland. He very much appreciates being part of a family business that focuses on research and development. He is also inspired by Geistlich Pharma's core values and long history. With his patient nature, Lukas always has an open ear to discuss cases and solutions for your clinic and support you on your path to regeneration.

Phone: +41414926850

Lukas Allamand
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Stefanie Brauer

Key Account Manager North Germany

Stefanie has been in charge of Niedersachsen, Schleswig-Holstein, Hamburg and Bremen area since 2016.
Since her two children are already grown up, she can dedicate herself to cartilage regeneration with a lot of joy and commitment.
As a balance, Stefanie dances salsa, rides her bike a lot and takes care of her Oldtimer.
She would be happy to visit you in your clinic or to take your contact.

Stefanie Brauer

Harald Schröder

Key Account Manager South Germany

Harry, with over 20 years of experience in the field of sports medicine, specializes in always having the best solutions for you and your patient regarding joint/cartilage therapy for orthopedic surgeons.
He is always open to discussing cases and solutions to clinical problems specific to your case.
In his spare time, Harry is an avid scuba diver.

Harald Schröder

Marcelo Roggembaum

National Sales & Marketing Manager Brazil

Marcelo Roggembaum is the National Sales and Marketing Manager in São Paulo, Brazil. He started working at Geistlich in 2015 and his main passion is his daughter Julia. Also, he is into arts and race cars.
As a hobby, Marcelo is practicing road cycling to keep his mind and body in constant regenerative mood. Pleased to serve Geistlich and you - always at your service!

Marcelo Roggembaum

Paula Ferreira

Key Account Manager Brazil

Paula works for Geistlich since 2022 as Key Account Manager in Brazil. She is always willing to help you with the best solutions for bone and cartilage regeneration. In her free time she likes to go to the beach, to visit her family, especially her nephew. Also, she likes to spend time with her friends and enjoying the nature.

Paula Ferreira

Filippo Baldini

National Sales Manager Italy

Filippo is working at Geistlich since 2009 and is responsible for Regenerative Technologies in Italy with more than 25 years of experience in the field of medicine. He is used to work with surgeons in finding solutions for clinical cases. In his free time he loves being with his family in the mountains for trekking and mountain biking. Do not hesitate in contacting him if you have any questions.

Filippo Baldini