"Doctor is In" Experts

Ian Kerner, Founder

Ian Kerner is a New York Times best-selling author of numerous books including She Comes First, Passionista and The Big Fun Sexy Sex Book amongst others. To read more about Ian's print books, please click here. Ian appears frequently on the TODAY Show and also writes a weekly sex column for CNN. Ian is certified as a sexuality counselor by AASECT (the American Association of Sexuality Educators, Counselors) and frequently addresses issues that are common to the "American bedroom." He lives with his wife and two sons (and a pit-bull named Jitterbug) in New York City.

If you'd like to ask Ian a sex/relationship question please post it in the Good in Bed expert forum.

To contact Ian with a media inquiry, please email him at ian@iankerner.com.

Click here to read Ian's weekly CNN column "Sex and You"

Check out Ian's "Good in Bed Guide to 52 Weeks of Amazing Sex."

See what Ian has been talking about in the Good in Bed Forums.

Check out Ian's "Good in Bed Guide to Overcoming Premature Ejaculation."

View some of Ian's television appearances.

Read more about Ian's print books.

Madeleine Castellanos


A psychiatrist specializing in sex therapy with couples and individuals, Madeleine Castellanos, M.D. is committed to helping others learn about their own sexuality and how to achieve physical and emotional balance in their sex lives.  In addition to being an Assistant Professor of Psychiatry at Albert Einstein College of Medicine, she has dedicated her private practice to the specialty of sex therapy and sexology for those couples and individuals wanting to address any difficulties they have in the area of sexuality, or enhance their sex life and their experience of sex.  She is a member of the American Association of Sexuality Educators, the Society for Sex Therapy and Research, and the International Society for the Study of Women's Sexual Health.  For more information, please visit ReclaimYourSexuality.com.

See what Madeleine has been talking about.

Check out Madeleine's eBook "A Woman's Guide to Male Sexual Issues"

Check out Madeleine's eBook " A Men's Guide to Male Sexual Issues"

Debby Herbenick

DebbyHerbenick.jpgDebby Herbenick, PhD, MPH is a Research Scientist and Associate Director of The Center for Sexual Health Promotion at Indiana University and a sexual health educator at The Kinsey Institute for Research in Sex, Gender and Reproduction. Her research is largely focused on women's and men's sexual function, sexual pleasure and enhancement. She is also the author of Because It Feels Good: A Woman's Guide to Sexual Pleasure and Satisfaction.

See what Debby has been talking about.

Check out Debby's eBook, the "Good in Bed Guide to Anal Pleasuring."


Hilda Hutcherson

hhutcherson.jpgDr. Hilda Hutcherson M.D. received her undergraduate degree from Stanford University and her medical degree from Harvard Medical School. A renown gynecologist, Dr. Hilda's devotion to women's empowerment and education is supported by appearances on Oprah, Rachel Ray Show, 20/20, Today, Good Morning America, ABC Nightly News and numerous others.  She is the author of 3 books: Having Your Baby: A Guide for African American WomenWhat Your Mother Never Told You About Sex, and Pleasure: A Woman's Guide to Getting the Sex You Want, Need and Deserve. She is married and has 4 children.

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Check out Hilda's Good in Bed Guide to "Sex and the Baby Years."


Joe Kort

JoeKort.jpgPsychotherapist, coach and author Joe Kort, Ph.D, MSW, MA has been in practice since 1985. He is the Director of The Center for Relationship and Sexual Health, which can be found at crsh.com. He specializes in Gay Affirmative Psychotherapy as well as IMAGO Relationship Therapy, which is a specific program involving communication exercises designed for couples to enhance their relationship and for singles to learn relationship skills. It is based on the books Getting The Love You Want and Keeping The Love You Find by Dr. Harville Hendrix. Dr. Kort is also a Board Certified Sexologist specializing in sex therapy and sexual identity. He is also a Certified Sexual Addiction therapist. For more about Joe, please visit joekort.com.

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Justin Lehmiller

Dr. Justin Lehmiller Dr. Justin J. Lehmiller received his Ph.D. in Social Psychology from Purdue University and currently teaches in the Department of Psychology at Harvard University. He conducts research on topics including secret romances, prejudice and stigma, sexual orientation, and friends with benefits. Dr. Lehmiller has published over 20 scholarly works to date, including articles in some of the leading journals on sex and relationships, several book chapters, and a textbook (A Social Psychology Research Experience). His research has been featured prominently in numerous media outlets, including Psychology Today, The Globe and Mail, Men's Health, and The Sunday Times. In addition, he has appeared on several episodes of the television program Taboo on the National Geographic Channel to talk about sex and love from a scientific standpoint. Learn more about Dr. Lehmiller and follow his blog at http://www.lehmiller.com.

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Amy Levine

AmyLevine.jpgAmy Levine is a sexologist, sex coach and certified sexuality educator with over 15 years of experience.  She received her Master's Degree in Human Sexuality from New York University, and certification from the American Association of Sexuality Educators, Counselors, and Therapists (AASECT). Amy coaches singles and couples addressing dating dilemmas, communication, sexual difficulties, increasing sexual satisfaction, and more. Learn more about Amy at www.igniteyourpleasure.com

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Logan Levkoff

LoganLevkoff.jpgLogan Levkoff Ph.D is a recognized expert on human sexuality, relationships, and sexual health. She frequently appears on television including Good Morning AmericaThe Today Show, The Rachael Ray Show, and CNN, and her work with teens and parents has been featured in The New York Times. Logan is the author of Third Base Ain't What it Used to Be: What Your Kids are Learning About Sex Today and How to Teach Them to Become Sexually Healthy Adults (NAL/Penguin) and is an AASECT certified sex educator. She received her Ph.D. in Human Sexuality, Marriage, and Family Life Education from New York University and an M.S. in Human Sexuality Education from the University of Pennsylvania. She lives in New York City with her husband, son, and daughter. For more information, check out www.loganlevkoff.com or follow her on Twitter @LoganLevkoff.

See what Logan has been talking about.

 Check out Logan's eBook "How to Get Your Wife to Have Sex With You."


Kristen Mark

kristenmark.jpgKristen Mark, Ph.D., M.P.H. is a sex and relationships researcher and assistant professor at University of Kentucky. She is also the survey director, author of Sex Trends, and a managing editor for Good in Bed, and a blogger for Kinsey Confidential, Psychology Today, and Huffington Post. Kristen teaches graduate-level classes at University of Kentucky in the areas of health, sexuality and relationships, and research methodology. She completed her PhD in health behavior at Indiana University, has a master's degree in biostatistics, a master's degree in human development, and a bachelor's degree in psychology with a specialization in LGBT studies. Kristen's research focuses on sexuality in the context of relationships, sexual desire and desire discrepancies, and sexual pleasure and satisfaction. Learn more information about Kristen at www.kristenmark.com.

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Emily Nagoski

EmilyNagoski.jpgEmily Nagoski has a Ph.D. in Health Behavior, with a concentration in Human Sexuality from Indiana University, and a Masters degree in Counseling Psychology also from IU, including a clinical internship at the Kinsey Institute Sexual Health Clinic. While at IU, Emily taught courses in both Human Sexuality and Marriage and Family Interaction. With more than a decade's experience as a sex educator and an unshockable enthusiasm for empowering others to have healthy, joyful sex, Emily brings insight and clarity to the often perplexing, always fascinating world of human sexuality. For more info about Emily, please click here.

See what Emily has been talking about.

Check out Emily's "Good in Bed Guide to Orally Pleasuring a Man"

Check out Emily's "Good in Bed Guide to Female Orgasms"

Check out Emily's "Good in Bed Guide to the Science of Successful Relationships."


Keri Peterson

Keri Peterson

Dr. Keri Peterson obtained her bachelor degree from Cornell University and received her medical degree from Mount Sinai School of Medicine. She completed post-graduate training in Internal Medicine at Mount Sinai Medical Center in New York City and is board certified in Internal Medicine. Dr. Peterson has been in private practice with a prominent medical group on the Upper East Side of Manhattan since 1999. She holds appointments at Lenox Hill Hospital and Mount Sinai Medical Center. She is a member of the American College of Physicians and the American Medical Association. With a demonstrated commitment to the advancement of medicine, Dr. Peterson has several publications in leading medical and scientific journals and has presented at distinguished medical symposiums. Dr. Peterson is a medical contributor and columnist for Women's Health Magazine and also appears frequently on the TODAY Show amongst others. 

See what Keri has been talking about.

Check out Keri's eBook, co-authored with Patty Brisben "Sexy Ever After: Intimacy Post-Cancer"

Anna Potter

AnnaTarletonPotter.jpgAnna recently earned a Masters Degree in Public Health with a focus on sexuality and health at Columbia University. She has an extensive background in safer sex, HIV and STI prevention, and reproductive rights. She has worked with youth and women of all ages, with a focus on empowering others to take responsibility for and control of their emotional and sexual health. She received her undergraduate degree from the University of North Carolina at Chapel Hill, where she created and implemented the now-annual Orgasm Awareness Day.

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Roshini Raj

Roshini Raj

Dr. Roshini Raj is board certified in Gastroenterology and Internal Medicine with degrees from New York University School of Medicine, and Harvard University. Currently, Dr. Raj is an attending physician at NYU Medical Center/Tisch Hospital in New York City. She also serves as an assistant professor at the NYU School of Medicine, and she has a special interest in women's health and cancer screening. She is a contributor to the Today Show and her most recent book is, What the Yuck?! The Freaky & Fabulous Truth About Your Body, in which she fields readers' most personal and provocative questions about their bodies, sex and other issues.

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Ed Ratush

EdRatush.jpgDr. Edward Ratush, M.D. is a Psychiatrist specializing in the treatment of Addictive Disorders, Treatment Resistant Depression, Adult ADHD, and Male Sexual Health and Dysfunction. He is an expert in minimizing or eliminating sexual side effects commonly encountered in psychiatric treatment. That is why in addition to medications, Dr. Ratush prescribes Yoga, Acupuncture, Biofeedback, Resonant Breathing, Hypnosis, Herbals and Supplements. In his Private Practice in SOHO New York he offers Individual and Group Psychotherapy, Medication Management, and TMS (Trans-Cranial Magnetic Stimulation) - a safe non invasive Depression treatment without any sexual side effects. For more detail about Dr. Edward Ratush, M.D. and his practice: RecoverMD.com or contact directly doc@recovermd.com.

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Lauri Romanzi

romanzi-team.jpgReconstructive pelvic surgeon and Clinical Associate Professor of Urogynecology at The New York Presbyterian Hospital Weill-Cornell School of Medicine, Lauri Romanzi, MD maintains her private practice in Manhattan. Her work with Harvard Humanitarian Initiative and other international humanitarian organizations includes fistula repair, incontinence, prolapse and uterine resuspension surgery for women in Niger, Democratic Republic of Congo and Pakistan. An active clinical researcher, she's been featured on The Dr. Oz Show, Today, Good Morning America, Playboy Radio, NY Times, Fox 5, London Times, Italian Playboy, Dr Radio, More Magazine, Telemundo, Oprah Magazine and Cosmo Radio, among others. Her Kirkus reviewed book--Plumbing and Renovations--gives readers the inside scoop on feminine fitness. Dr. Romanzi has 2 children lives in New York. For more information, please visit www.urogynics.org.

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Gail Saltz

gsaltz.jpgPsychiatrist, psychoanalyst, columnist, bestselling author, and television commentator Gail Saltz, M.D., has been called "a voice of wisdom and insight in a world of confusion and contradictions" by Tom Brokaw. Dr. Saltz is a regular health, sex, and relationship contributor to the Today show and has appeared repeatedly on The Oprah Winfrey Show, ABC's The View, Dateline, ABC's 20/20 and CNN's Larry King Live among others. Dr. Saltz is a critically-acclaimed author, and most recently wrote The Ripple Effect: How Better Sex Can Lead To a Better Life. She has also written 2 children's books, Amazing You! Getting Smart About Your Private Parts and Changing You: A Guide to Body Changes and Sexuality. An Associate Professor of Psychiatry at The New York Presbyterian Hospital Weill-Cornell School of Medicine, Dr. Saltz is a psychoanalyst with The New York Psychoanalytic Institute and has a private practice on the Upper East Side of Manhattan. She lives in New York with her husband and three daughters. For more info, please visit www.drgailsaltz.com. Gail is currently working on an upcoming Good in Bed guide.

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Andrew Trees

AndrewTrees.jpgAndrew Trees, Ph.D., is the author of Decoding Love: Why It Takes Twelve Frogs to Find a Prince and Other Revelations from the Science of Attraction as well as several other books. He holds a number of advanced degrees from the University of Virginia and appears regularly on The Today Show to discuss the latest research on sexuality and relationships. He has also appeared on the CBS Early Show, CNN and Imus in the Morning amongst others. His main areas of interests are dating and marriage, sexual attraction, and evolutionary psychology. He lives in New York City with his wife and son. To find out more, please visit andrewtrees.com

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Check out Andy's book, "A Scientific Guide to Successful Dating."

Belisa Vranich

BelisaVranich.jpgBelisa Vranich, Psy D. is a clinical psychologist and author. She is a regular guest on national television and routinely quoted in magazines and newspapers in the area of sexual health and relationships. Dr. Belisa completed her doctorate from New York University and Bellevue Hospital with focus in neuropsychology, psychiatric consultation and liaison and bilingual treatment. Dr. Belisa was the previous sex and health editor for Men's Fitness magazine, and Muscle and Fitness Hers; she has published five books (the most recent being a sexual health book for teens entitled Boys Lie from HCI press), a Dear Doctor column for The New York Daily News and is currently a columnist for The Huffington Post. Dr. Belisa has worked as a consultant for US Department of Health and Human Services and The National Mental Health Association in Washington DC. Vranich lives in New York City. Visit www.drbelisa.com for more information.

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