Conditions Treated by Dr. John Zhang, PHD

• Acne
• Acute Insomnia
• Allergies
• Anal and Rectal Cancer
• Anxiety
• Appendix Cancer
• Arthritis
• Asthma
• Atopic Dermatitis (Eczema)
• Benign Exertional Headache
• Bile Duct Cancer
• Blood Cancer
• Bone Cancer
• Brain and Nervous System Cancer (incl. Gliomas, Astrocytoma, Schwannoma, Medulloblastoma, Chordoma)
• Breast Cancer
• Breathing-Related Sleep Disorders
• Cancer
• Chronic Headache
• Circadian Rhythm Sleep Disorder
• Cluster Headache
• Colorectal Cancer
• Cough Headache
• Depression
• Diabetes
• Digestive Disorders
• Drug-Induced Insomnia
• Elbow Pain
• Endocrine Cancer
• Endogenous Insomnia
• ENT Cancer