Mental Health Therapist

William Cornwell Iii

1812 E Madison St, Seattle, Washington, 98122-2843

About William Cornwell Iii

William Cornwell Iii is a therapist based in Seattle, Washington who is specialized in Mental Health Counselor. His current practice location is 1812 E Madison St, Seattle. Patients can reach him at 425-610-9403. William Cornwell Iii NPI number (Unique professional ID assigned by NPPES) is 1164730842.

William Cornwell Iii is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. He 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

William Cornwell Iii 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 William Cornwell Iii
Specialization Mental Health Counselor
Gender Male
Practice Address: 1812 E Madison St,
Seattle, WA - 98122-2843

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 Number1164730842
NPI Enumeration Date: 16 Sep, 2010
NPI Last Update On: 16 Sep, 2010

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 William Cornwell Iii 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.

William Cornwell Iii
433 31st Ave E, Upper Level
Seattle, WA - 98112-4826
Phone: 334-294-9245

Book an Appointment with William Cornwell Iii

To schedule an appointment, contact William Cornwell Iii at 1812 E Madison St, Seattle, Washington or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about William Cornwell Iii:

William Cornwell Iii is a therapist specializing in Mental Health Counselor. He is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. He 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, William Cornwell Iii is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

William Cornwell Iii practices at 1812 E Madison St, Seattle, Washington, 98122-2843.

To schedule an appointment with William Cornwell Iii, please contact the office at 425-610-9403.

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