PhD Stefan Hammel, born in 1967, works as a child and family therapist, hypnotherapist, and as chaplain in a general hospital and a psychiatric hospital. 

He is the leader of the Institute of Hypno-Systemic Consultation (Hypno-Systemische Beratung) in Kaiserslautern, Germany. He leads seminars on therapeutic storytelling, therapeutic utilisation, hypnotherapy and hypno-systemic strategies, as well as a 36 day hypnotherapy training following Milton Erickson including systemic skills and narrative techniques .

He was trained at the renowned institutes for Systemic Therapy in Heidelberg (International Society of Systemic Therapy "IGST" and Helm-Stierlin-Institut) and in the German Milton Erickson Society. He is an associated Member of the Milton Erickson Society in Germany.

PhD Stefan Hammel has been doing presentations and workshops on international conventions such as... 

• Psychoonkologie (kbs), Bad Neuenahr, Germany 2013,
• Zukunftskongress METAFORUM Abano Terme, Italy 2014
• Milton-Erickson-Convention (MEG), Bad Orb, Germany 2010
• META Conference, Black Mountain, NC, USA 2011
• Milton-Erickson-Conventions (MEG), Bad Kissingen 2011-2018
• Congress on Suicide Prevention (IMHEL) Luxembourg 2013
• Congress on Family Therapy (VPA) Graz, Austria 2013
• Congress on Couple Therapy (VPA) Linz, Austria 2014
• Congress on Storytelling (VPA) Vienna 2015
• Convention on Therapy with Parts (Trenkle Org.) in Heidelberg 2015
• Convention on Therapeutic Sculptures (SySt) Munich 2015
• European Congress on Hypnosis (ESH) Sorrento, Italy 2014
• 20th World Congress on Hypnosis (ISH) Paris 2015
• Ego State World Congress (MEISA), Cape Town, South Africa 2016
• Convention on Children's Therapy (Trenkle Org.) in Heidelberg 2016
• Convention on Systemic Therapy Frankfurt (DGSH) 2016
• Convention on Systemic Therapy Heidelberg (WISL) 2016
• Festival of Therapeutic Storytelling (hsb), Germany 2016, 2018, 2022, 2024, 2025
• European Congress on Hypnosis (ESH) Manchester, UK, 2017
• META Conference, Black Mountain, NC, USA 2018
• Convention "At Eye Level" by the Milton-Erickson-Institute Innsbruck 2018
• Convention on Therapy with Parts (Trenkle Org.), Heidelberg 2018
• European Congress on Hypnosis (ESH) Antalya, 2023: The Art of Therapeutic Storytelling (Info: https://esh2023.org/)
• 9th World Congress on Mind Training for Excellence in Sport & Life / MentalesStärken, Würzburg, Germany: How the real becomes unreal and the unreal becomes real - Therapeutic modeling as work at the limits of the possible
• SMSH Annual Conference 2023, Balsthal, Switzerland, 2023: Therapeutic storytelling - Using clients' metaphors/ No fear of fear - Favorite interventions in working with anxiety-ridden clients (Info: www.smsh.ch)

In 2026, seminars and congress workshops with Stefan Hammel are planned in:

• January, 17.- 18., 2026: Kaiserslautern, hsb - Hypnosystemic Training, Therapeutic Hypnosis, Seminar 4: Separating problems, connecting solutions - how does hypnotic communication work? (suitable as an introductory seminar (Seminar 0) for the “Therapeutic Storytelling” series)
• January, 23.- 24., 2026: Probable dates (final decision in December 2025) Online, (HYPSE 1): Therapeutic Storytelling: How to develop a therapeutic story – spontaneously for any situation
• January, 30th - February 1st, 2026: Berlin- Tegel, Hammel live in Berlin - in cooperation with INKUR: “Words that work: body language and therapy”
• February, 16.- 17., 2026: Kaiserslautern, hsb - Hypnosystemic training, Therapeutic storytelling, Seminar 1: How to develop a therapeutic story - spontaneously for every situation
• February, 27.- 28., 2026: Probable dates (final decision in December 2025) Online, (HYPSE 2): Writing good therapeutic stories – in 10 minutes & proven narrative structures
• March, 5.- 8., 2026:  Kaiserslautern, hsb –  Trainer seminar 7: TE - writing stories, painting, spatial design
• March, 22.- 23., 2026: Kaiserslautern, Kaiserslautern, hsb - Hypnosystemic training, Therapeutic storytelling, Seminar 2: Writing good therapeutic stories - in 10 minutes & proven narrative structures
• April, 17.-18., 2026: Probable dates (final decision in December 2025) Online (HYPSE 3): The Island of Love – Maps and Landscapes in Individual, Couples and Family Therapy
• April, 19.- 20., 2026: Kaiserslautern, hsb - Hypnosystemic training, Therapeutic Storytelling, Seminar 3: The Island of Love - Maps and Landscapes in Individual, Couple and Family Therapy
• May, 1.-2., 2026: Probable dates (final decision in December 2025) Online (HYPSE 4): Storytelling - other brief interventions, therapeutic greetings, deals & ordeals
• May, 8., 2026: Oslo, Norwegen: Introduction to the Techniques of Therapeutic Modeling (https://www.hypnoseforeningen.no)
• May, 9.-10., 2026: Oslo, Norwegen: The Art of Therapeutic Storytelling (https://www.hypnoseforeningen.no)
• May, 15.- 16., 2026: Kaiserslautern, hsb - Hypnosystemic training, Therapeutic Storytelling, Seminar 4: Therapeutic Greetings, Deals & Ordeals and other Brief Interventions
• May, 30.-31., 2026: Rejkjavik, Island: Introduction to Therapeutic Storytelling (Icelandic Hypnosis Society dfi.is)
• June, 4.- 7., 2026:  Kaiserslautern, hsb –  Trainer seminar 8: TE - Thematic seminar: Fears and compulsions
• June, 7.- 8., 2026: Kaiserslautern, hsb - Hypnosystemic training, Therapeutic Modeling, Seminar 1: Introduction to Therapeutic Modeling
• June, 27.-28., 2026: Munich, SySt, Introduction to Therapeutic Storytelling
• July, 3.-4., 2026: Probable dates (final decision in December 2025) Online (HYPSE 5): Separating problems, connecting solutions – hypnosystemic communication?
• July, 5.- 6., 2026: Kaiserslautern, Kaiserslautern, hsb - Hypnosystemic training, Therapeutic Modeling, Seminar 2: Working with symbolic figures and fragmenting and transforming burdens
• August, 21.- 22., 2026: (date change!) Kaiserslautern, hsb - Hypnosystemic training, Therapeutic Modeling, Seminar 3: Transgenerational work and integration of real and fictitious persons from the client's external world
• August, 28.-30., 2026: Glasgow, Schottland: ESH-Congress*: Introduction to Therapeutic Modeling (https://esh-hypnosis.eu/xv-esh-congress)
• September, 4.- 6., 2026: Vallendar/ Rhine-Main area: 6th International Festival of Therapeutic Storytelling: Lecture and workshop, Therapeutic Greetings and other short interventions (Info: www.erzaehl-festival.de)
• September, 10.- 13., 2026: Kaiserslautern, hsb –  Trainer seminar 9: TM - Subtraction, addition and transformation
• September, 20.- 21., 2026: Kaiserslautern, hsb - Hypnosystemic training, Therapeutic Modeling, Seminar 4: The Sofa of Happiness - Therapeutic Modeling in Couple and Family Therapy, with Teams and Groups
• September, 26.-27., 2026: Sofia, Bulgarien: Introduction to Therapeutic Modeling (Bulgarian society of hypnosis PISEL, https://pisep.org)
• October, 18.- 19., 2026: Kaiserslautern, hsb - Hypnosystemic training, Therapeutic Hypnosis, Seminar 1: Trance Inductions and Trance Phenomena in Ericksonian Hypnotherapy
• October, 23.-24., 2026: Probable dates (final decision in December 2025) Online (HYPSE 6): Therapy structure – Anamnesis – Utilisation: Transforming problems into solutions
• October, 28.-31., 2026: Rottweil: Kongress MedHyp: Hypnosystemische Therapie bei Tinnitus*
• November, 11.-14., 2026: Balsthal, Switzerland: SMSH-Jahrestagung: Hypnosystemische Therapie bei Tinnitus* (Info: www.smsh.ch)
• November,  21.- 22., 2026: Kaiserslautern, hsb - Hypnosystemic training, Therapeutic Hypnosis, Seminar 2: Therapy Structure - Anamnesis - Utilization: Transforming Problems into Solutions
• December,  3.- 6., 2026: Kaiserslautern, hsb –Trainer seminar 10: TM - Bodyguards, ministers and mythical creatures
• December,  13.- 14., 2026: Kaiserslautern, hsb - Hypnosystemic training, Therapeutic hypnosis, Seminar 3: Body language, voice and verbal implications (multi-level communication) 

He is offering seminars at renowned institutes such as Gunther Schmidt's Milton Erickson Institute in Heidelberg, the Systemic Institute IGST in Heidelberg,  and Prof. Varga von Kibéd's and Insa Sparrer's SySt-Institute in Munich.

Stefan Hammel is a member of the German Milton Erickson Society (M.E.G.).

Stefan Hammel is the author of several books. For further information please look HERE. 

His International Blog can be found on www.stefanhammel.com/blog.

His German Websites and blog can be found on www.stefanhammel.de and www.hsb-westpfalz.de.

His Online Shop can be found on www.shop.stefanhammel.de.