About Us/Bios

Oh My Girls! is the first-ever health club designed exclusively for girls, ages 8 -18. Our focus is physical, nutritional, psychological, cognitive and social well being. OMG! creates an environment that aims to put the fun back in girlhood while guiding its members toward healthful and successful living in a most challenging time.

The center was founded by two mothers of young girls who are professionally credentialed in the areas of psychology, counseling, physical fitness, life coaching and law. It has a full commercial kitchen, physical fitness room, a make-your-own smoothie bar, and a small boutique for selling apparel and accessories. Most unique to the center is a circular-shaped workshop room designed to promote one on one, face-to-face communication during its classes which run the gamut from building positive body image to navigating the challenges of middle school.

Oh My Girls! offers a variety of uniquely-styled fitness classes specifically geared for the bodies and minds of developing girls and taught by instructors with extensive experience working with children. Oh My Girls! staff of teaching chefs lead healthy cooking classes that go beyond just teaching cooking skills. Our chefs educate girls in areas such as nutrition, healthy food choices, self-sufficiency in the kitchen and recipe calculations.

OMG's mission is to create a revolution in girlhood at a time when it is most needed. The owners of the center aim to make Oh My Girls! the ultimate stepping stone for every girl to reach her full potential!


Starlight Camp
Girl Scouts of America
Crestwood Country Day
Luhi Summer Camp
Timber Lake Camp
Tyler Hill Camp
Temple Sinai of Roslyn
Temple Beth Sholom of Roslyn
Our Lady of Mercy Academy
Shelter Rock Church
North Shore Family Guidance Center
Krav Maga Center of America
Long Island University Nutrition Program


Lisa Rosen, Psy.DLisa Rosen, Psy.D
Founder and President

Lisa Rosen, Psy.D, is the founder and President of Oh My Girls! LLC. Lisa received her B.A. in Psychology from the University of Pennsylvania and both her Masters and Doctorate in Clinical Psychology at Ferkauf Graduate School of Psychology in New York. After completing her Doctorate, Lisa was hired as a rehabilitation psychologist at the world renown Rusk Institute of Rehabilitation in New York City. There, Lisa worked with patients of all ages suffering from the psychological effects of physical injuries, illness and chronic pain. This work inspired her to teach others about the importance of the mind-body connection, as it relates to overall well being. Over the last ten years, Lisa has become a strong advocate for fitness and nutritional health for maturing girls. Her passion for fitness, healthy eating and the mind-body connection were the inspiration behind Oh My Girls! With a vision of providing a fun and fantastic space where girls can feed their bodies and fuel their minds and spirits, Lisa has created the first healthy living center of its kind where tween and teen girls can develop into vibrant, grounded, healthy and successful young women.

Claire Lieber-SaulClaire Lieber-Saul
Co-Founder and Vice President, Yoga and Zumba® Instructor

Claire Lieber-Saul is a Certified Life Coach, attorney and licensed Zumba® instructor. Since childhood she has studied dance, yoga, meditation, stress-management and nutrition. Claire has a special interest in the external and internal physiological benefits of stress management, particularly as it relates to healthy childhood development. In addition to her formal dance training in ballet, jazz, modern and tap, Claire also studied ballroom and Latin dance at various social dancing schools both in New York and California. Claire's love for Latin and jazz dance comes through in her Zumba® classes, where she fuses funky dance steps with fitness-oriented movement. Her special passion is turning young children onto the rhythmic beauty of Latin music and building their self-esteem through developing a lifelong love of physical self-expression. Claire’s passion for dance, physical fitness and wellness clearly comes through in her compassionate, creative, inspiring and informative teaching style.

Janine OdellJanine Odell - Head Chef

Chef Janine holds a Masters Degree in Nutrition from C.W Post College and for many years headed up the cooking program at a local children's cooking school. In addition she is a TA in a Special Ed classroom in ACDS, Plainview. With a specialty on GI disorders and cross contamination, Chef Janine has an very strong grasp of issues such as gluten intolerance and food allergens, two very common areas of concern in the OMG! kitchen. She is a fanatic when it comes to using and finding the best ways of cooking to suit each individuals needs and has created an abundance of specially tailored and delicious recipes accordingly. Janine's incredible sensitivity, understanding and love of children comes through loud and clear in the kitchen where she establishes an instant rapport with our OMG! girls.


Inga VoloshinInga Voloshin - Chef

Chef Inga trained at the Institute of Culinary Education, a classical culinary arts school in New York City. Her multifaceted nature has enabled her to do everything in the food world from catering to media to restaurant work. Her passion for wellness through diet, has now led her to even further studies: as of the Fall of 2012 she will be enrolled in Brooklyn College's nutrition program. Ever the artist in presentation and food design, it is no wonder that Inga also holds a BA in Film Studies from Hunter College. Her articles and recipes have been published in Hemp.com, Bromography.com, and Chile Pepper Magazine and she loves to share her own obsessions with "all things food, health, and motherhood" on her blog: ingasindulgence.blogspot.com/?m=1. Inga adds her own "sweetness" to every recipe she cooks, making her food delicious for our OMG! girls to eat and her company wonderful for our them to be in!

Jane Ronis - Chef

Jane Ronis, the founder of Chef for Night in 2001, specializes in the interactivity and educational experience of food and how it enhances the emotional connection between people. An educator by nature and a Chef by calling, Jane has run wildly successful programs at Sur la Table, Manhasset Schools Saturday Series, and she was the recipient of a grant from the Port Washington Education Foundation for her Magic School Bus Pretzel Chemistry Workshop. Additionally, her in-home and event space catering service and cook along parties are considered by her customers to be second to none. Her approach to delicious food preparation is accessible and warm. She prides herself on making her classes memorable, creative and most important fun even for those who didn’t think they liked to cook. Jane holds an MFA in theatre. Her years as a theatre professional enhance her ability to entertain while teaching. You can reach Jane at This email address is being protected from spambots. You need JavaScript enabled to view it. and learn more about Chef for a Night on her website coming this month at www.Chefforanight.net.

Jenna VanekJenna Vanek - Chef and Fitness Instructor

Chef Jenna is a Certified Family and Consumer Sciences Teacher, with a specialty in Nutrition, Food Science and Child Development. Jenna is one of those people that truly "walks the walk": her love of cooking, fitness and positive outlook are a part of her every day, healthful lifestyle which tends to be very is contagious to all around her. Jenna's joyful, warm and super energetic nature, combined with her enthusiasm for working with children, makes her a wonderful addition to both the OMG! kitchen and fitness room.



Lisa Pappania Lisa Pappania- Pastry Chef

Bio Coming Soon






Jenna VanekGabrielle DiBiase- Fitness Instructor

Gabrielle DiBiase is a middle school danceline coach for Commack Middle School. She is a certified Zumba instructor and is currently in her first season as an NHL New Jersey Devils Dancer. Gabrielle has been dancing competitively for over ten years and has been a part of the Nationally ranked Commack Varsity Cougarettes. While attending Hofstra University, Gabrielle majored in Italian and had a double minor in Spanish and Marketing. At Hofstra she was a member of the Nationally ranked Hofstra University Dance Team, and graduated from the university in May of 2013.  


Lori ZwickLori Zwick - Yoga Instructor

Lori is a NY State Certified N-6 teacher who has been teaching for 15 years – 7 in elementary school and the past 8 in preschool. She began her yoga practice 5 years ago and was hooked by the profound sense of calm and openness that she felt from practicing. After introducing yoga to her preschoolers and seeing them beg for it again and again, Lori decided that she wanted to teach yoga to children. After an 18 month process, she is now a Certified YogaKids Facilitator (CTYKF). For the last 5 summers, she has been happily bringing the gift of yoga to children at the summer camp program where she teaches during the year, as well as in afterschool programs at two private schools on Long Island. In addition to fitness benefits, her classes offer children the tools to navigate the hurry-up world we are living in as well as helping them develop a sense of well-being and connectedness to each other and the natural world that surrounds them.

Alie KleinAlie Klein - Yoga Instructor

Alie earned her Master’s Degree in Education in 1998 and has been a middle school counselor in the Carle Place Schools for the past 13 years. Combining her passion for yoga and working with children, Alie earned her certification to teach kids yoga through the Yoga Rocks! Kids program in 2006. Thereafter, in 2009, she earned her 200 hour adult certification with Yogaworks, NYC. Alie began teaching at the former Yoga Rocks! Studio in Oyster Bay and in various schools. She currently teaches children of all ages and has helped establish a yoga program at The Danc’in Place in Carle Place, NY. Alie also began a children's yoga program at The Cold Spring Harbor Library. Alie’s light-hearted teaching style encourages students to move forward in a safe environment, while experiencing their connection between body, mind, and spirit. She is quick to find the humor in any situation, a quality that is always a bit hit with our OMG girls and we are so lucky to have such a qualified and compassionate children's teacher and counselor in our fitness room.

Diana Vargas-SinghDiana Vargas-Singh, 200-RYT, C-YRKT - Fitness Instructor

Diana is a certified Yoga Instructor trained in Family Yoga and Special Needs Yoga. She teaches children's yoga classes through The Nassau County Girl Scouts, Nassau BOCES, and multiple private schools across Long Island. Diana's classes focus on breathing exercises, yoga stretches and stress and life coping tools that many tween and teen girls so need. Diana's personal use of yoga for stress management while practicing law instilled a strong conviction that yoga can dramatically change your inner life. She shares this conviction gently and wonderfully with our OMG! girls. It is a testimony to how wonderful a teacher (and mother) she is that all three of Diana's children love to practice yoga with her.

Anna KhesinAnna Khesin - Registered Dietician

Anna Khesin is a Registered Dietitian who is on a mission to awaken an appetite for healthy living in others. Her peppy and warm disposition allows her to connect with individuals of all ages. She is particularly enthusiastic about working with young girls to help form healthy habits that will allow them to transition into adolescence and adulthood with their best foot forward. Currently, Anna is a clinical dietitian for a sub-acute and skilled nursing unit in Queens, NY. She is also the founder and host of a health and wellness radio show, HealthFluential, set to go live in late 2014. Anna completed her dietetic internship through Long Island University, Post campus and is continuing to pursue her master’s degree in nutrition at Post.

Linda MandelbaumLinda Mandelbaum- Certified Health Coach

Linda Mandelbaum is a Certified Health Coach fully credited by the American Association of Drugless Practioners. She is a Certified Lifestyle Educator in First Line Therapy with Metagenics. Linda has completed Food as Medicine which is a program that supports integrateing nutrition into clinical practice. Her goal is to build confidence and self-esteem in pre-teenagers, teenagers and adolescents through education in nutrition, exercise, and healthy lifestyle choices that empower her clients to create and sustain healthy lifestyles. Linda has been in in private practice as a Health & Wellness Coach for adolescents, starting in 2009 to present. She developed Strong Bodies, Strong Minds, a holistic wellness program for youth aged 8 to 16. Linda is an amazingly non-judgmental, understanding, supporting and loving coach. We are thrilled to have be a part of Lose to Gain L2G with Oh My Girls. For more information on her private coaching check out her website www.theteenhealthcoach.com

Jane GolubJane Golub - Registered Nurse, Educator and Adolescent Risk Specialist

Jane Golub is a Registered Nurse and educator based on Long Island. Her professional experience is in adolescent risk behavior prevention, counseling, school health education and research. She conducts programs for parents and for students of all ages on health related topics such as positive parent-child communication, father-daughter and mother-daughter relationships, girl empowerment, body image and self-esteem, relational aggression (female bullying), gender bias, sexuality, relationship skills, conflict resolution and peer pressure. Jane has an extrememly kind, compassionate and very "real" way about her that will make all OMG! girls feel wonderfully at ease while discussing these most important subjects. Oh My Girls! is so pleased to be able to offer Jane's unique and most important work to their offerings.

Randi Zimmerman, LCSW-RRandi Zimmerman, LCSW-R - Licensed Social Worker

Randi Zimmerman, LCSW-R is a seasoned clinical psychotherapist treating children, teens and adults. She has extensive experience with a wide variety of issues and disorders such as, anxiety, depression, ADHD, OCD, trauma, sexual assault, relationship and behavioral issues. Randi is considered a specialist in field of eating disorders including anorexia, bulimia, and binge-eating disorder and overeating. Her approach is highly individualized, interactive and relational. Randi earned her Masters degree from New York University’s prestigious Shirley M. Ehrenkranz School of Social Work in Manhattan. She is a member of the National Association of Social Workers (NASW) and the National Eating Disorder Association (NEDA), and a former founder and co-chair of the Parent Action Resource Committee (PARC). Randi has been awarded a listing in the 2011-2012 Emerald Executive Registry of Who’s Who. She brings a joyful and funny approach to her signature workshop: Not Just Any Body, YOUR Body: Learning to Love It. This interactive and transformative workshop, on improving self-esteem and body image, is guaranteed to help our OMG! girls feel great about themselves.

Meagan CostelloMeagan Costello - Social Media and Marketing Advisor

Meg Costello is a full-time graduate student at Columbia University, working towards her Masters in Health Education while also interning at the Center for Student Wellness. Meg received her Bachelor's of Science in Business with concentrations in Finance and Global Management as well as her Masters in Business Administration from Binghamton University. Following college, she spent 5.5 years working at Goldman Sachs in their New York City and Salt Lake City offices. In early 2013, she quit her job on Wall Street and set out to pursue a career that combined her passion for health/wellness with a genuine desire to improve others' lives. She spent eight months working as the Business Development & Community Director at Greatist, a health and fitness start-up on a mission to change the way the world thinks about healthy living, before deciding to return to school full-time. Meg was a three-sport athlete in high school who has now found a passion for endurance and adventure sports. An avid traveler, she also loves photography, cooking, reading, writing and spending as much time outdoors as possible. She also volunteers with the Women's Sports Foundation, Girls on the Run and assistant coaches the varsity basketball team at her high school alma mater.

Dr. Jeffrey RosenDr. Jeffrey Rosen - Adolescent Sports Medicine

Dr. Jeffrey Rosen is the Orthopaedic Sports Medicine consultant to Oh My Girls! and has been instrumental in the creation of our fitness program. For the first decade of Jeffrey's career, he was the Director of Child and Adolescent Sports Medicine at the NYU Hospital for Joint Diseases and served as the orthopaedic consultant for an extensive list of athletic organizations and performance artists. Since 2008, Jeffrey has been the Chairman of the Department of Orthopaedics and Rehabilitation at New York Hospital Queens. He is Associate Professor of Orthopaedic Surgery at Weill Cornell Medical College in New York City and has written and lectured extensively on orthpaedic disorders and injuries. Jeffrey is board-certified in Orthopaedic Surgery and fellowship trained in sports medicine, specializing in the study and treatment of disorders and injuries of the knee and shoulder. He completed his undergraduate education at University of Pennsylvania and earned his medical degree from the Columbia University College of Physicians and Surgeons in New York City. He completed his residency in orthopaedic surgery at the Hospital for Joint Diseases-Orthopaedic Institute in New York and received fellowship training at the world-renowned Kerlan-Jobe Orthopaedic Clinic in Los Angeles. As a team physician for professional performers with Alvin Ailey Dance Theater, De La Guarda Dance Company and the Broadway casts of "Wicked" and "Fame Becomes Me", as well as many professional sports teams, Jeffrey is very familiar with the specific type of injuries and overuse problems faced by female athletes, dancers and performers. As a father of two active girls, he is also no stranger to the preference that many young children have to sometimes use their bodies in a way that can put their joints at risk. Oh My Girls! is so lucky to have him on board as a consultant to help direct our fitness program and to help the fitness staff ensure the best exercise experience for your Oh My Girls!

Dr. Judy MittlemanDr. Judy Mittleman - OB/GYN

Dr. Judy Mittleman is an obstetrician gynecologist on the North Shore of Long Island. She earned her MD degree from the State University of New York, Health Science Center of Brooklyn in 1993 and went on to do a residency in obstetrics and gynecology at Long Island Jewish Hospital. Upon finishing her residency in 1997, she joined a private practice at LIJ, where she remained for ten years. After giving birth to their fourth child, Dr. Mittleman took four years off to raise her family. She has lectured locally on the topics of infertility, rape and sexual abuse, medical ethics pertaining to ob/gyn, and the topic of women in medicine. She is currently in the process of starting her own practice in gynecology.

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