Considered a leading authority on human sexuality

Licensed Clinical Psychologist and Sex Therapist

Former Fellow of The College of Physicians and Surgeons, Columbia University

Former Research Scientist at The HIV Center for Clinical and Behavioral Studies

Active member of American Psychological Association, The Society for the Scientific Study of Sexuality and The American Association of Sex Educators, Counselors and Therapists

Fellow of The American Academy of Clinical Sexologists and The American Board of Sexology

Author and editor of numerous articles, presentations, books, and publications

Has treated thousands of patients in diverse settings

Former Executive Producer for Thriveonline: Sexuality.

Sexuality Guide at About.com.

Sex Expert for WebMD, Thrive, and numerous other Websites.

Has appeared on several nationally syndicated television and radio programs