Zest Pediatrics of Fox Chapel

Zest Pediatrics of Fox Chapel Pediatric office designed for parents to provide a personal, supportive, and accessible experience. She is always learning from them!

Dr. Hayley Hellstern is a board-certified pediatrician and fellow of the American Academy of Pediatrics (AAP). She was born and raised in Annapolis, MD and earned her Bachelor’s degree in Neuroscience from Johns Hopkins University. Between college and medical school, she spent several years in Pittsburgh (thanks to her husband, who had established roots in the city while attending college at Carne

gie Mellon University). While in Pittsburgh, she volunteered in the Child Life Department at Children’s Hospital of Pittsburgh, where she spent her days playing with children whose families were unable to be by their side while they were in the hospital. Dr. Hellstern then moved to Colorado to attend medical school at Rocky Vista University College of Osteopathic Medicine. She and her husband were thrilled to return to Pittsburgh for her pediatric residency at UPMC Children’s Hospital of Pittsburgh, where Dr. Hellstern was selected as one of two residents in her class to partake in the Pediatric Advocacy, Leadership, and Service track. After several years in a “traditional” pediatric office, Dr. Hellstern realized she was not able to spend enough time with each of her patients and their families. She desired a practice model that allowed her to check in with her patients after-hours and provide them timely guidance when ill. Since her childhood, she dreamt of becoming a doctor who was “part of the family” – the way she always viewed her own pediatrician. She is thrilled to join Zest Pediatrics in a direct pediatric care model where she can provide the unique, specialized care each patient deserves. While Dr. Hellstern absolutely loves caring for children of all ages, she holds a special place in her heart for newborns and breastfeeding medicine. It brings her immense joy to journey with parents as they navigate the new world of parenting. She knows it takes a village to raise a child, and she would love to be part of yours! Outside of the office, she currently serves as an Early Career Representative for the Pennsylvania Chapter of the AAP, and is a member of the Advocacy and School Health Committees. She is also a member of the Pennsylvania Breastfeeding Coalition. Dr. Hellstern is the mother to two energetic, adventurous children who love to keep her on her toes. She and her family enjoy long walks around their neighborhood, watching hockey games (best NHL team is a heated topic in their family), and exploring the many playgrounds Pittsburgh has to offer.

September always sneaks up on us, doesn't it? One week the kids are sleeping in and eating popsicles at noon — and the n...
09/02/2026

September always sneaks up on us, doesn't it?

One week the kids are sleeping in and eating popsicles at noon — and the next, we're packing lunches at 6 a.m. and wondering why everyone is suddenly so cranky.

Here's what we want parents to know: that crankiness? It's real, and it's normal. The shift back to structure affects sleep cycles, digestion, mood, and behavior — sometimes all at once.

What to watch for in the first few weeks of fall:
▪More meltdowns or emotional outbursts than usual
▪Stomachaches in the morning (often anxiety, not illness)
▪Trouble falling asleep even when tired
▪Increased hunger or decreased appetite

Most kids adjust within 2–3 weeks. But if you're seeing persistent symptoms — or something just feels off — that's exactly what we're here for. At Zest, there's always time to talk it through.



💬 Questions about your child's adjustment? Text us directly — no nurse triage line, no waiting. That's the Zest difference.

Back-to-school anxiety shows up differently across ages — but it's real at every stage from kindergarten to senior year....
08/17/2026

Back-to-school anxiety shows up differently across ages — but it's real at every stage from kindergarten to senior year. Here's how it can look at every age, and how to handle it!

▪Early Elementary: Separation anxiety, clinginess, tears at drop-off → Extra transition time, a special goodbye ritual, lots of reassurance
▪Late Elementary: Stomach aches, sleep trouble, worry about fitting in → Validate feelings, problem-solve together, maintain routine
▪Middle School: Social anxiety, fear of judgment, middle school stress → Listen without minimizing, don't rush to fix it
▪High School: Performance pressure, identity, college stress → Normalize struggle, watch for isolation or mood changes

At any age: if anxiety is significantly disrupting daily life, let's talk. That's exactly what your Zest Pediatrician is for.

The Most Important School Supply You're Not Buying...Backpacks? ✔️School supplies? ✔️New shoes? ✔️ But the most importan...
08/14/2026

The Most Important School Supply You're Not Buying...

Backpacks? ✔️
School supplies? ✔️
New shoes? ✔️

But the most important thing your child needs this school year isn't on a shopping list—it's sleep 😴

As pediatricians, we see it every August: summer bedtimes linger, but school mornings come early. Sleep affects far more than energy—it supports learning, memory, mood, immune health, and emotional regulation.

Zest's sleep recommendations by age:
Ages 5–9: 10–12 hours/night
Ages 10–12: 9–11 hours/night
Teens (13–17): 8–10 hours/night

A few simple tips:
✔ Start shifting bedtime earlier now—10–15 minutes every few nights.
✔ Turn off screens at least 60 minutes before bed.
✔ Keep wake-up times consistent, even on weekends.

A well-rested child is better prepared to learn, grow, and thrive. If sleep has been a struggle, your Zest pediatrician is here to help!

August is in full swing, and that means one thing at Zest Pediatrics: back-to-school season is officially HERE! Whether ...
08/12/2026

August is in full swing, and that means one thing at Zest Pediatrics: back-to-school season is officially HERE!

Whether you have a kindergartner heading in for the first time or a 17-year-old wrapping up their last year, Zest's back-to-school checklist applies:

☑Well-child visit scheduled (yes, even teens need this!)
☑Vaccines reviewed and up to date for their grade
☑Sports physical done for any child playing fall athletics
☑School forms, health plans & medication authorizations signed
☑Sleep schedule shifting earlier NOW — before school starts
☑Breakfast routine in place (protein matters at every age)
☑Mental health check-in: asked them what they're excited about AND nervous about?

Every age looks a little different — but the checklist applies to all school-aged kids!

⚽🏈👟 Fall Sports Season: Is Your Child Ready? 👟🏈⚽From first-time soccer players to varsity athletes — fall sports season ...
08/10/2026

⚽🏈👟 Fall Sports Season: Is Your Child Ready? 👟🏈⚽

From first-time soccer players to varsity athletes — fall sports season is here!

Here’s Zest’s pre-season checklist:
▪Sports physical — required for school athletics (middle & high school), recommended for all ages
▪Hydration: kids 5–12 need 6–8 cups daily; teen athletes need significantly more — start before practice, not during
▪Heat acclimatization: bodies at EVERY age need 10–14 days to adjust to August practice temps — first two weeks should be lower intensity
▪Sleep: ages 5–12 need 9–11 hours; teens need 8–10 — sleep IS athletic performance
▪Protein at every meal — especially important for growing athletes ages 10–17
▪Concussion awareness: teach your child at every age what to report and that it's safe to speak up

The habits built before the season starts protect athletes all the way through.

Sports physicals available now — book before August fills!

Dr. Hellstern is thrilled to partner with Yellow Bridges Speech and Sensory Development Center, LLC to provide autism ev...
07/20/2026

Dr. Hellstern is thrilled to partner with Yellow Bridges Speech and Sensory Development Center, LLC to provide autism evaluations to Pittsburgh-area families. If you know anyone who is looking for a high-quality, easy-to-schedule autism evaluation -- send them our way!

👩‍⚕️ A pediatrician brings developmental and medical expertise
🗣️ A speech-language pathologist brings functional insight
🤝 Together, they use the ADOS, the gold-standard autism assessment, to give your family a thorough, accurate picture

Three sessions. Two perspectives. One clear plan for what comes next, including referrals for therapies or resources if they’re recommended.

If you have questions before you commit, send us an email. We’re happy to walk you through exactly what to expect.

Yinz be safe out there! 😷☣️Everyone should stay inside as much as possible (and it takes a lot for Dr. H to encourage ki...
07/16/2026

Yinz be safe out there! 😷☣️

Everyone should stay inside as much as possible (and it takes a lot for Dr. H to encourage kids to stay inside).

If you or your child have asthma, pay extra close attention to your symptoms and keep an inhaler nearby.

As always, reach out to your doctor if you have any questions or are experiencing concerning symptoms!

CODE MAROON: The health department says PM2.5 air quality conditions in areas of Allegheny County are in the hazardous range Thursday.

"At this time, the health department recommends no outdoor activities this evening and potentially tomorrow." FULL STORY⬇️

Sharing some helpful information from Dr. Kristina Javier!
07/13/2026

Sharing some helpful information from Dr. Kristina Javier!

**Cyclospora: What I Want Parents to Know**

Cyclospora is a parasite that can sometimes contaminate fresh fruits and vegetables. It may cause watery diarrhea, stomach cramps, bloating, nausea, and fatigue, with symptoms often appearing about a week after exposure.

The good news is that it does not spread directly from person to person, and effective treatment is available when needed.

My top priority is keeping your child well hydrated. I recommend offering an oral rehydration solution such as Pedialyte, continuing breastfeeding if applicable, and returning to a normal diet as tolerated.

To help prevent infection, wash fresh produce thoroughly, follow local health department updates regarding any recalled items, and remember that cooking fruits and vegetables kills the parasite. Good handwashing remains essential.

Please contact me or your child’s pediatrician promptly if your child shows signs of dehydration, has persistent or worsening diarrhea, blood in the stool, or a high fever. A stool test can confirm the diagnosis and guide treatment.

At Zest Pediatrics, I’m here to help keep your family healthy and informed. 🌟

You've made it through our June series — here's the part where we bring it together!A summer rhythm isn't a schedule. It...
06/26/2026

You've made it through our June series — here's the part where we bring it together!

A summer rhythm isn't a schedule. It's a set of anchors that keep your family regulated without requiring perfection. ⚓

Here's what a summer rhythm typically looks like for our family:
▪️Morning anchor: consistent-ish wake time + breakfast together
▪️Midday anchor: lunch + outdoor time or activity before the heat peaks
▪️Afternoon anchor: downtime, creative play, or screens (within the rhythm)
▪️Evening anchor: family dinner + wind-down without screens, consistent-ish bedtime

That's it. Four loose anchors. Everything else can flex.

The research behind this is solid: it's PREDICTABILITY — not rigidity — that supports children's emotional regulation, sleep quality, and behavior. You don't need a perfect summer. You need a rhythm your family can actually keep!

If you have questions — about sleep, nutrition, movement, or anything else — that's what Zest is here for.

Direct access to your pediatrician, all summer long.
🔆 That's the Zest difference. 🔆

Address

241 Freeport Road, Suite 1
Pittsburgh, PA
15215

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