Psychologist | Clinical Psychology

William Harnell

1428 Brickell Ave Ste 403, Miami, Florida, 33131-3436

About William Harnell

William Harnell is a psychologist based in Miami, Florida who is specialized in Clinical Psychology. Active license number of William Harnell is 1623 for Clinical Psychology in Arizona. His current practice location is 1428 Brickell Ave Ste 403, Miami. Patients can contact him at 305-915-5748. William Harnell NPI number (Unique professional ID assigned by NPPES) is 1124690524.

William Harnell is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

William Harnell's specialty, 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 Harnell
Specialization Clinical Psychology
Gender Male
Practice Address: 1428 Brickell Ave Ste 403,
Miami, FL - 33131-3436

Professional Identification Codes

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

NPI Number1124690524
NPI Enumeration Date: 14 Jul, 2021
NPI Last Update On: 03 Nov, 2021

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for William Harnell are as mentioned below.

License NumberSpecializationStateStatus
1623Clinical Psychology ArizonaPrimary

Mailing Address

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

William Harnell
1633 Sw Bellevue Ave,
Port Saint Lucie, FL - 34953-1104
Phone: 415-671-9995

Book an Appointment with William Harnell

To schedule an appointment, contact William Harnell at 1428 Brickell Ave Ste 403, Miami, Florida or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about William Harnell:

William Harnell is a psychologist specializing in Clinical Psychology. He is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, William Harnell is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

William Harnell practices at 1428 Brickell Ave Ste 403, Miami, Florida, 33131-3436.

To schedule an appointment with William Harnell, please contact the office at 305-915-5748.

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