Leader in hair restoration since 1970

DHI Global Medical Group has been dedicated solely to the education research, diagnosis and treatment of hair and scalp disorders for 48 years, and has helped more than 200,000 delighted patients across 65 locations worldwide.

During these 48 years, DHI Global Medical Group has been a leader in the evolution of the hair restoration industry by setting new standards and introducing innovative techniques and medical treatments.



Mr Costas P. Giotis Founded DHI Global Medical Group. The first DHI clinic was in Palo Alto, CA



DHI opens it's first clinic in Europe, DHI Athens. 

On the photo: Mr. Kostas P. Giotis with his son, at his first office at DHI Athens


DHI Global Medical Group expands to France.

On the image: DHI introduces hair loss medical diagnosis on French media.


DHI introduce micro grafting, one of the firtst microsurgery basaid hair replacement techniques.


Workshop with Prof. R. Nordstorm, writer of the first book about hair displantation.


Prof. Y.C.Kim awarded by DHI chairman Mr. K.P.Giotis for his reasearch at University of Korea.


Prof. J.C.Kim, Mr. K.P.Giotis and Mr. R.Shiell, ISHR past president.


Pr. O' Tar Norwood presents for first time the Norwood scales at DHI Athens.


DHI becomes the first hair clinic to be awarded with the ISO 9002 Certification, a quality assurance designation that demonstrates our commitment to a consistent level of quality recognized under international standars.


Dr. J.C. Choi and Y.C. Kim, investors of "Choi Transplanter"


Dr. O'Tar Norwood at the 4th DHI Hair Workshop


DHI Global Medical Group introduces the DHI implanter, allowing for improvements in follicle viability.


SHF (Single Hair Follicle) technique introduced at DHI Clinics and incorporated as an enhancement of the Direct IN Technique.


DHI Medical Group develops FUE (Follicular Unit Extracntion) in conjunction with some of the firnest doctors in the Hair Restoration industry


Mr. K.P. Giotis at the Face congress, in Milan


Direct IN Technique was developed in response to surgical innovations in hair replacament. In this procedure, up to 2.000 follicles were implanted in a out-patient session of up to 6 hours.


DHI Total Care System is launched, briging together extensive research, advanced diagnosis, superior treatment and the promise of lifetime support to our clients.


DHI Athens Clinic was certified with ISO 9001:2008 from TUV AUSTRIA HELLAS a prestigious European Organization.


DHI Medical Group introduced the Direct Hair Implantation, a minimally invasive technique, that sets new higher and quality standards in the field of Hair Restoration worldwide.


New VIP Clinc in Glasqow, central DHI Clinic for Scotland and North England


New DHI Building in London's most prestigious medical district, the Harley St. Area, serves as DHI's world Headquarters and Training Center.


DHI Medical Group continues to lead and innovate in hair restoration science, contributing results and abstracts about current research and upcoming breakthroughs which it regularly shares and presents at the most prestigious hair science conferences around the world. In January 2012, DHI London Clinic renewed the Certification of Care Quality Commision. In November 2012, DHI Athens Clinic was certified with an ISO 9001:2008 certificate from TUV AUSTRIA HELLAS.


On July 25, 2013 DHI Global Medical Group signed an agreement  with Walnut Healthcare, a group company of Mr Raaja Kanwar of Apollo Group a $6.6Bn group head quartered in India, having diversified businesses across the globe, and granting exclusive rights to Walnut to expand the DHI franchise internationally in Asia, Africa and South America. DHI Global Medical Group had granted a Master Franchise for India to another group company of Mr Kanwar in 2010. 


DHI Academy Masters Meeting 2013


New VIP Clinic in Thessaloniki, central DHI Clinic for North Greece.


A new PRP protocol was developed and Direct-MPG was introduced with great success.


DHI signs association agreement with Urban Retreat at Harrods and expands to USA, Nepal, Philippines and Afghanistan. 


DHI Global Medical Group strengthens partnerships with public universities in Europe and actively contribute to courses.


DHI receives European and US patents for the new Direct Hair Implantation instruments. 

European Business Awards 2015

DHI Global Medical Group received EBA national award in customer focus category.


DHI Scotland has been recognized with an annual award based on patient service excellence ratings from healthcare search engine