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Keeping kids healthy—it’s what we do
Our pediatricians and pediatric nurse practitioners treat babies, toddlers, children, teens and young adults. And it’s our mission for every child in our care to grow up happy, healthy and fit.

Why choose a Cohen Children's pediatrician?

For more than 35 years, the pediatricians of Cohen Children’s have provided family-oriented pediatric services and comprehensive well-care to children across Queens, Nassau and Suffolk counties. We pride ourselves on getting to know all our patients and their families, allowing for individualized attention and personalized care. Our experienced, board-certified physicians and nurse practitioners work in association with the nationally recognized pediatric experts at Cohen Children’s Medical Center, one of the nation’s preeminent pediatric hospitals, to bring the most advanced and compassionate care to our community.

About us

At Mount Sinai General Pediatrics, our experienced staff—consisting of providers, nurses, and medical office workers—offers comprehensive medical care for infants, children, and adolescents. Our considerate staff works with your family from your first contact with the medical team to make every visit to our office a pleasant and encompassing experience.

All our doctors are certified by the American Board of Pediatrics. We follow the American Academy of Pediatrics and the Centers for Disease Control (CDC) guidelines regarding vaccinations. Vaccinations are important for the safety of your child as well as the children they may come in contact with. 

We are open seven days a week, with evening and weekend appointments available for well visits and same-day sick appointments. 

We make every effort to make sure you and your family are comfortable and informed about your child’s medical needs. Our providers feel that it is important for families to be involved in the care of their child in order to have a trusting relationship with their healthcare team, so we work hard to provide educational and knowledgeable information to our patients at every visit and encourage our patients to ask any questions they may have.

We have everything you need to be prepared for your visit, including downloadable forms and a list of what to bring with you.

Learn more

Your community doctor—with access to top resources

When you choose one of our general pediatric locations, you also gain seamless access to our specialty services at Cohen Children’s Medical Center—ranked among the nation’s best children’s hospitals by U.S. News & World Report every year since 2007. Cohen Children’s has a broad array of pediatric specialty services so that our patients get the excellent care they deserve. These resources also help your pediatrician or nurse practitioner care for even the most complicated cases.

You’re our partner in care

Children are our patients, but parents are our partners—we involve parents in the decision-making process every step of the way. Because only you can decide what’s best for your child. And when kids are old enough, we involve them, too, so they can get a head start on making smart choices about their health.

Our pediatricians

Marjorie Blasi Serotoff, MD

Specialties: Pediatrics

Stuart Mark Berman, MD

Specialties: Pediatrics

Laura Beatriz Bennett, MD

Specialties: Pediatrics

Tinting Yeouting Cheng, MD

Specialties: Pediatrics

Celso Acelar Hofilena, MD

Specialties: Pediatrics

Mitsu Anne Low Kee, MD

Specialties: Pediatrics

Allison Leigh Lasner, MD

Specialties: Pediatrics

Allison Mangini, DO

Specialties: Pediatrics

Lisa Maria Meehan, MD

Specialties: Pediatrics

Rebecca Kerner Papa, MD

Specialties: Pediatrics

Jennifer Lyn Reinitz, MD

Specialties: Pediatrics
Lillian Lawton-Hernandez, NP

Lillian Lawton-Hernandez, NP

Tracy Peterson, RPA

Tracy Peterson, RPA

Cohen Children's Northwell Health Physician Partners General Pediatrics at Mount Sinai
5505 Nesconset HighwayMount Sinai, NY 11766
A Cohen Children’s newsletter

Kids First

Our publication focuses exclusively on kids’ health and treatments available and includes expert advice and patient stories.

Read the latest issue
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