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Northern Inyo Associates Pediatrics

Trusted Care Providers for Children & Adolescents

As the sole group of pediatric specialist in the Bishop area, we feel a responsibility for every child in our community. We partner with families to promote a healthy lifestyle for children so that they can achieve their greatest potential.

Keeping children healthy takes an entire community. We work closely with the school district, early childhood intervention specialists, the health department, WIC, mental health services, and many others in the community who help care for and support children and their families.

We offer the following services:

  • Preventative care from newborn through age 18 years
  • Evaluation and treatment of pediatric patients with acute illness
  • Management and care coordination for pediatric patients with chronic medical conditions
  • Allergy testing for environmental and food allergies.
  • Walk-in services for established patients including immunizations, blood pressure checks, weight checks, fluoride varnish treatments, WIC forms, anemia testing, hearing screening for patients more than 4 years and age appropriate vision testing for patients more than 9 months.

Our pediatricians also care for infants and children who are admitted to Northern Inyo Hospital.

We accept most major insurance including Medi-Cal plans. Also ask about discounts for cash pay and local residency. Call (760) 873-6373.

After Hours Services

If your child needs medical assistance outside of our regular hours (8am to 5pm Mon thru Sat), we offer an after hours advice line through a partnership with Triage Logic. This URAC accredited physician-led phone service allows patients to speak with nurses and medical professionals through the phone or other smart device. For more information, visit or

Meet Our Providers

Charlotte Helvie, MD, FAAP, Medical Director of Pediatrics, NIHD

Dr. Helvie has helped care for children and adolescents in the Bishop area for over a decade. She completed her undergraduate training in California and medical training in Virginia before moving to Bishop where she lives with her husband and two sons. When not at work she enjoys a myriad of outdoor activities including hiking, climbing, and skiing.

Kristin Meredick, MD, FAAP, MBA

Dr. Meredick is the newest pediatrician to our practice. Originally from Chicago, she completed her undergraduate degree in St. Louis and medical training and pediatric residency in Miami. Though new to the area, she is very excited to get to know our community and our pediatric population. In her free time, she enjoys skiing, mountain biking and hiking.

Colleen McEvoy, Certified Pediatric Nurse Practitioner (C-PNP)

Colleen, who hails from New York, enjoys the outdoors and moved to Bishop in 2015. She is a graduate of the University of California, San Francisco and has been a Certified Pediatric Nurse Practitioner since 2006. She has a particular interest in adolescent medicine and runs the school based health clinic at Bishop Union High School. She has also spent time in Mexico, studying Spanish and working in clinics there.

Tammy Loy, NP

Tami currently serves as a Nurse Practitioner at NIA Pediatrics. She has been a Pediatric Nurse Practitioner since 2013 and a registered nurse since 2008.

Before joining NIHD, she was a Pediatric Emergency Room Nurse Practitioner in Michigan and a staff nurse in the Neonatal Intensive Care Unit. Tami obtained her Master’s degree in Nursing at the Loma Linda School of Nursing and her Bachelor’s degree in Nursing from Mount St. Mary’s College. Tami is a wife, and the mother of two. She is passionate about providing care that addresses each child’s unique needs, and she feels privileged to be part of their journey as they grow and thrive.

Anne Gasior, MD

Dr. Gasior has been in Bishop since 1999 after completing her training in Family Practice at Ventura County Medical Center. She worked for Toiyabe Indian Health Project for a number of years delivering and caring for newborns, children and adults. She joined the Northern Inyo healthcare team in 2013 providing care for patients at the Rural Health Clinic and recently expanded her practice in pediatric care working closely with the local pediatricians. Dr. Gasior trained with Dr. Beck prior to his retirement in order to continue providing allergy testing and treatment specific to our local plants and environment. She lives in Bishop with her husband and much loved dogs. She enjoys being outside and gardening.