What i would like to ask is: do you see Medicine Buddha as a real being
Someone asked this of my teacher at a Medicine Buddha teaching and he answered yes, the Medicine Buddha was a real person who through his practice and vows became enlightened.
able to physically heal someone under certain circunstances (like, deep recitation of His name, long practice, etc)?
Again yes, his practice can be used to physically heal. There are a number of versions though and the preparations for the ritual are quite elaborate. His practice can range from a simple devotional type to full higher yoga tantra.
Other question is: can you recitate His name to heal other people?
Yes, but what do you mean by heal? If somebodies life force (which is based on karma) is finished then the healing may not have physical implications but mental implications (which ultimately are of greater importance). That is that they may die or not be healed of their disease but their mind will not be overcome by negative emtions like hatred, ignorance, fear of death etc... This will assist them greatly during the bardo of death and may help them gain a positive rebirth.
Anyone here as ever see His powers healing someone (be it yourself or other people)?
No, for me Sangye Menla is more an inspirational figure, both in my professional and personal life I try to apply the practices contained in his twelve great vows to guide my life and how I deal with people. These practices defintely have a healing effect!
THE TWELVE VOWS OF THE MEDICINE BUDDHA
Having considered the countless sufferings and illnesses of beings, the bodhisattva "Master of Remedies" (Bhaishajyaguru) developed a very great love and a very great desire for helping them all. He progressed on the spiritual path, formulated twelve great wishes and finally attained the state of Medicine Buddha.
1. To spread his light in innumerable worlds and to make others equal to him.
2. To illuminate all beings plunged into darkness.
3. To fulfil the need of each and everyone with equanimity.
4. To bring those who have strayed back onto the Mahayana path.
5. To bring those who have faith in him along to follow his discipline.
6. To cure every being suffering from physical difficulties or mental affliction.
7. To cure all those physically or mentally ill, and to provide friends, family and a home to those without and to guide them towards Complete Awakening.
8. To make that disadvantaged women can be reborn as free humans until Complete Awakening.
9. To protect beings from illusion, to show them the right view and the bodhisattva path towards Complete Awakening.
10. To save those who are in distress, imprisoned or sentenced to death.
11. To feed the hungry ones, give water to the thirsty ones.
12. To provide clothes to the naked or needy ones.
Translated from French by the Karmapa Translation Committee, Kundrol Ling, 29/04/2004. Original translation from the French in "Dharma - Compassion et medecine "; Ref. D.G. Diffusion : Autor Kollectiv; Editor/Label: Prajna; EAN: 9782905188601; Kalu Rinpoche
PS see here for the sutra http://www.buddhanet.net/pdf_file/medbudsutra.pdf