Heidi B. Koss, LMHC


Heidi Koss, MA, LMHC, is a psychotherapist in private practice in Redmond, WA. She specializes in perinatal (pregnancy and postpartum) mood disorders, birth trauma, sexual abuse, and parent adjustment issues. Heidi has been the WA State Coordinator for Postpartum Support International www.postpartum.net, and has volunteered for over 20 years with Perinatal Support Washington www.perinatalsupport.org. She served as past board member for PATTCh – the Prevention and Treatment of Traumatic Childbirth, www.pattch.org. Heidi is active leading trainings for clinicians on appropriate assessment and treatment options for perinatal mood disorders and birth trauma. She leads monthly clinical consult groups mentoring mental health care providers to develop their competency and expertise in perinatal mental health issues. Heidi was a co-founder of the Northwest Association for Postpartum Support (NAPS, www.napsdoulas.com) a postpartum doula organization as well as the recipient of the Doulas of North America (DONA) Penny Simkin Doula Spirit and Mentorship Award. Prior to her psychotherapy career, Heidi was a Postpartum Doula and Certified Lactation Educator for 12 years.

Additional Information

PSI Perinatal Mental Health 2-Day Certificate Course Yes

PSI/2020 Mom Online Maternal Mental Health Certificate Course No

PSI Advanced Perinatal Mental Health Course Yes

Provider type/license # WA Licensed Mental Health Counselor/#LH60334364

Additional specialized Perinatal Mental Health training completed Teach/Facilitate Advanced Perinatal Mental Health Consult Groups, Teach 2 day certification courses,


7918 168th Ave NE
Suite 116
Redmond, Washington 98052
United States

I am in the corner office directly across from the flagpole of Redmond Elementary School, at the intersection of NE 80th St and 168th Ave NE

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Fax: 425-908-7919

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  • Perinatal Mental Health
  • Birth Trauma
  • Sexual Abuse
  • Parenting
  • Pregnancy
  • Postpartum
  • Marriage/Relationship transition to parenting issues


Monday 9am - 5pm Tuesday 9am - 5pm Wednesday 10am - 8pm Thursday 9am - 4pm Friday hours vary

We want you to know you are not alone and you are not to blame. Help is available. You will get better.

24-Hr Helpline: call 1.800.944.4773 or text 503.894.9453

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