Gender Multispecialty Service (GeMS) | Your Visit

GeMS offers consultations, assessments and care to children, teens and young adults. This process differs on the patient’s age.

For those 9 years old and younger: The GeMS-Youth (GeMS-Y) program offers consultations to gender-diverse youth and their families, a play therapy assessment, discussion of specific and general gender issues in young children and assistance accessing resources in the community.

For those 10 to 25 years old: We offer comprehensive psychological and medical assessments and individualized treatment plans. We ask that the patient be in individual therapy, which we will help to facilitate if they don’t yet have a therapist.

Please note: Our staff provides mental health services and support for patients throughout care in GeMS, but we are unable to provide ongoing therapy or emergency services. If you or your child feel unsafe, please call 911 or go to the nearest emergency room for timely care.

What to expect

At GeMS, every patient has a medical provider and a mental health provider who work together and with the rest of our team to deliver comprehensive care. You and your child will meet with both of these health care professionals throughout the course of treatment.

As part of our comprehensive gender program, we provide a variety of options for medical transition if desired by the patient. Every approach is individualized. Some of the agents we prescribe include puberty blockers, testosterone, and estrogen. The links provided in our Patient Resources page provide more detailed information on these approaches.

You may find the following downloadable documents helpful to fill out before your first visit with us:

GeMS Family Self-Report Form
GeMS Self-Report for Young Adults Form 
Guidelines for Completing Therapist Questionnaire 
Endocrine Questionnaire 

Who to call

For the following non-urgent requests, we encourage you to contact us though the MyChildren’s Patient Portal. You may also call us:

For prescriptions: The dedicated phone line for prescription refills is 617-355-7476, option 3. Please plan ahead and allow two to three business days for prescriptions to be refilled. Keep in mind that some prescriptions require prior authorization from your insurance, which requires an extra day or two.

For medical advice: Boston Children’s Endocrinology nurses are available for non-urgent advice at 617-355-7476, option 3. Please do not call the GeMS line.

For consultations and letters: We offer consultations for patients considering surgery as the next step in their gender journey. If you are seeking a letter to be eligible for surgery and have not been seen at GeMS recently, we may ask you to make an appointment to see us first. We also provide letters for name changes, passports, etc. For all letters, please send a request to your provider through the patient portal with the type of documentation you need and where it should be sent. You may also call us at the main GeMS line at 617-355-4367. Please allow three to four weeks for these to be completed.