Mental Health Therapist

Katherine Joan Decker, MA

824-826 Boylston Street, Suite 100b, Brookline, Massachusetts, 02467

About Katherine Joan Decker

Katherine Joan Decker is a therapist based in Brookline, Massachusetts who is specialized in Mental Health Counselor. Her current practice location is 824-826 Boylston Street, Suite 100b, Brookline. Patients can reach her at 617-468-4624. Katherine Joan Decker is MA in Mental Health Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1023934239.

Katherine Joan Decker is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Practice Information

Katherine Joan Decker speciality, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Katherine Joan Decker
Specialization Mental Health Counselor
Credentials MA
Gender Female
Practice Address: 824-826 Boylston Street, Suite 100b
Brookline, MA - 02467

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1023934239
NPI Enumeration Date: 24 Jun, 2026
NPI Last Update On: 24 Jun, 2026

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Katherine Joan Decker are as mentioned below.

License NumberSpecializationStateStatus
Mental Health Counselor Primary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Katherine Joan Decker
824-826 Boylston Street, Suite 100b
Brookline, MA - 02467

Book an Appointment with Katherine Joan Decker

To schedule an appointment, contact Katherine Joan Decker at 824-826 Boylston Street, Suite 100b, Brookline, Massachusetts or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Katherine Joan Decker:

Katherine Joan Decker is a therapist specializing in Mental Health Counselor. She is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Yes, Katherine Joan Decker is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Katherine Joan Decker practices at 824-826 Boylston Street, Suite 100b, Brookline, Massachusetts, 02467.

To schedule an appointment with Katherine Joan Decker, please contact the office at 617-468-4624.

Reviews & Feedback

Have you visited Katherine Joan Decker? Share your experience to help others looking for a Mental Health Counselor in Brookline, MA.

Read Reviews / Give Feedback
**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.