Welcome to Our Practice

Welcome to the pediatric practice of Drs. Mark Gilchrist, Lisa Sevigny, Sheila Galvin, and Anita Shah in Chelmsford, Massachusetts.

In this practice, we have a strong commitment to patient and parent education. We believe that parenting can be more fun and more effective if you are informed and prepared. We believe that an informed patient or parent is a valuable ally in our attempt to provide the best health care. But, no educational material can replace the direct patient care you receive in our office.

Here for you 24/7/365, even evenings!

In addition to extended hours, including evenings, we provide 100% of our own on-call coverage.  That means if you have a question any time, day or night, weekday, weekend or holiday, a member of our clinical staff is always on call to answer your questions!  If you have a medical emergency that cannot wait until we are in the office during regular business hours, the on-call doctor can be reached at 978-988-1888.

FLU Vaccine is now available, please call to schedule an appointment for our clinics 978-250-4081

COVID Vaccines:

Covid Vaccine is now being offered for children ages 5-11. We strongly recommend the immunization for ALL eligible individuals.  Pfizer Covid Vaccines are now available to be given at the office.  VACCINES ARE GIVEN BY APPOINTMENT ONLY, Please call the office to schedule an appointment.  For more information on COVID-19 Vaccines for Children please visit the CDC website here: CDC Covid Vaccine

FOR MORE INFORMATION ON Pfizer-BioNTech COVID-19 Vaccine click:  Click Here

After you have received your vaccine register for V-safe: Click Here

Annual Physicals:

All patients over the age of two should have a comprehensive well-child exam every year.  In addition to the enormous health benefits of routine screening, these annual visits are required for participation in many scholastic and sports programs.

If your child is not up to date on his or her physical exam, call our office to set up an appointment.  We require all patients to have an annual exam.

Please be aware of our Holiday hours: The office is closed on New Years Day, Memorial Day, Independence Day (July 4th), Labor Day, Thanksgiving and Christmas

Featured Articles

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Meet our Doctors

  • Dr.
    Mark G. Gilchrist
    MD, FAAP
    Doctor

    Dr. Mark is a graduate of Chelmsford High School. He graduated with honors from the University of Miami and received his MD from Loyola University Chicago Stritch School of Medicine. He completed his pediatric residency at Arnold Palmer Hospital for Women and Children in Orlando, Florida. Currently, he has served as Chief of Pediatrics at Lowell General Hospital. Dr. Mark is the medical advisor for The Paul Center in Chelmsford, as well as the Greater Lowell Family YMCA. He currently serves as the vice chair of the Board of Directors of the Lowell General Physician Hospital Organization. He has also served as chairman of the Board of Directors of The Boys and Girls Club of Greater Lowell.

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  • Dr.
    Lisa M. Sevigny
    MD, FAAP
    Doctor

    Dr. Lisa Sevigny is a graduate of Tufts University School of Medicine and did her pediatric residency training at the Children's Hospital of Philadelphia. She joined the practice in July of 2001. Board certified in pediatrics, she has a strong interest in special needs children. Dr. Sevigny is married to a Lowell General Hospital emergency room physician and they have a son, Freddy, and a daughter, Keiko.

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  • Dr.
    Sheila M. Galvin
    MD, FAAP

    Dr. Lisa Sevigny is a graduate of Tufts University School of Medicine and did her pediatric residency training at the Children's Hospital of Philadelphia. She joined the practice in July of 2001. Board certified in pediatrics, she has a strong interest in special needs children. Dr. Sevigny is married to a Lowell General Hospital emergency room physician and they have a son, Freddy, and a daughter, Keiko.

    Read More
  • Dr.
    Anita R. Shah
    MD, FAAP

    Dr. Anita Shah is a graduate of the University of Kentucky College of Medicine. She completed her training at Children's Medical Center of Dallas. She was part of a group practice in Dallas, Texas and has since relocated to Massachusetts in September of 2017. An Avid traveler, aspiring chef and fitness enthusiast, she is a wonderful addition to our practice.

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Testimonials

  • "Everyone at the office is great!"
    Amy S.
  • "Dr. Gilchrist is a fantastic pediatrician."
    Steve
  • "Always has time for questions, makes the kids comfortable. Great staff!"
    KBW
  • "Have had nothing but amazing interactions with everyone at this office. Not only is everyone super bubbly, they take us right on time, and they have even stayed open late in order for us to get there to check out our son when we had a concern."
    Rebecca R.

Our Location

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Hours of Operation

We open Monday - Friday at 7:30 am, Saturdays at 8:00 am

Monday:

Open at 7:30 am

Tuesday:

Open at 7:30 am

Wednesday:

Open at 7:30 am

Thursday:

Open at 7:30 am

Friday:

Open at 7:30 am

Saturday:

Open at 8:00 am

Sunday:

Closed