General Preventive Medicine and Public Health
Certified by the American Board of Preventive Medicine (ABPM).

Acupuncture research and policy
Planning Chairman, NIH Consensus Conference on Acupuncture;

Founding Member, American Academy of Medical Acupuncture (AAMA);

Fellow of the National Academy of Acupuncture & Oriental Medicine (NAAOM)

Addiction Medicine
Medical Director, Office of Pharmacologic & Alternative Therapies (OPAT), Center for Substance Abuse Treatment (CSAT), Substance Abuse & Mental Health Services Administration (SAMHSA), United States Public Health Service (USPHS)

Medical Toxicology
Dr. Trachtenberg's areas of expertise in Medical Toxicology are:

1) Pharmacology and Toxicology of alternative & complementary health practices (ACHP); and

2) Behavioral Toxicology (AKA Addiction Medicine). There is currently no American Board of Medical Specialties (ABMS) recognized certification in Addictions for MD's who are not psychiatrists, other than Medical Toxicology. Dr. Trachtenberg's board eligibility in toxicology was granted by the ABMS, based on his experience in the treatment of addictions and drug detoxification. Dr. Trachtenberg is currently working with the American Board of Preventive Medicine (ABPM) and the American Society for Addiction Medicine (ASAM) to create an ABMS board certification in Addiction Medicine, but this will take several more years to achieve.

Clinical Epidemiology & Health Policy
Completed Fellowships at the University of California at San Francisco (UCSF) in Clinical Epidemiology (Mellon Scholar) and in Health Policy (Pew Fellow).

Phytomedicine
Certified as a Professional Herbalist by the American Herbalist Guild.