Mary Thornsen

Professional Counselor


  500 Cascade West Pkwy Se, Grand Rapids
     Michigan, 49546-2164
  616-502-3480    Maps & Directions
Mary Thornsen is a Grand Rapids, Michigan based counselor who is specialized as Professional Counselor. Active license number of Mary Thornsen is 6401018817 for Professional Counselor in Michigan. Her current practice location is 500 Cascade West Pkwy Se, Grand Rapids. Patients can book an appointment with her at 616-502-3480.
Mary Thornsen is a licensed mental health practitioner trained to help individuals, couples, and groups address emotional, psychological, and behavioral challenges. She uses talk therapy and evidence-based counseling methods to support clients in managing mental health conditions, improving relationships, and developing coping strategies for life’s difficulties.
Complete Profile:
Mary Thornsen speciality, credentials, practice address, contact phone number and fax are as below. Patients can directly walk in or can call on the below given phone number for appointment.
Name: Mary Thornsen
Specialization: Professional Counselor
Gender:Female
Accepts Medicare Assignment:No
Practice Address:500 Cascade West Pkwy Se, Grand Rapids,
Michigan, 49546-2164
Phone:616-502-3480
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 Number: 1033714308
NPI Enumeration Date: 03 Dec, 2020
NPI Last Update On: 06 Nov, 2025

Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Mary Thornsen are as mentioned below.
License NumberSpecializationStateStatus
6401018817Professional Counselor MichiganPrimary
6401018817Mental Health Counselor MichiganSecondary
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address: 17307 Franklin Ave,
Spring Lake, Michigan
Zip: 49456-1896
Phone Number: 616-502-3480
Patients can reach Mary Thornsen at 500 Cascade West Pkwy Se, Grand Rapids, Michigan or can call to book an appointment on 616-502-3480.
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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 09 February, 2026.