PEDIATRICS

Compassionate Pediatric Care for

Your Child

Meet Our

Providers

GLHS-Efren-Aganon-2025

Efren C. Aganon,
MD

GLHS-Alexander-Mast-2025

Alexander Mast,
DO

GLHS-Thomas-Zegarski-2025

Thomas Zegarski,
MD

At Grand Lake Pediatrics, we provide expert, compassionate care tailored to your child’s unique health needs. Our board-certified physicians are dedicated to keeping children healthy in a warm, family-friendly environment. As part of Grand Lake Health System, we offer trusted experience and personal care—conveniently located in the Grand Lake area. Proudly rooted in the community, we’re honored to be the region’s preferred choice for pediatric care from infancy through adolescence.

We provide the following clinical services for your child’s health and your peace of mind:

  • Acute Care
  • Allergy Injections
  • Behavioral Consultations
  • Developmental Screenings
  • Foster Care and Title IV-E Agency Assessments
  • Hearing & Vision Screenings
  • In-Office Vaccinations including the “Vaccine for Children” Program
  • Inpatient Hospital and Nursery Care
  • Nutrition Education
  • Same-Day Sick Appointments
  • School & Sport Physicals
  • Well Child Exams

Plan Your

Visit

We are currently accepting new patients! Give us a call today at
419-394-9579 or send a message to your provider through the FollowMyHealth Patient Portal to schedule an appointment.

St. Marys Office
Hours:

Monday-Thursday:
8:00 AM – 4:30 PM

Friday:
8:00 AM – 3:00 PM

Celina Office
Hours:

Monday:
9:00 AM – 4:00 PM

Wednesday:
8:00 AM – 4:30 PM

Friday:
8:00 AM – 2:30 PM

Wapakoneta Office
Hours:

Thursday:
8:00 AM – 4:30 PM