Psychologist | Clinical Psychology

Keith William Hannan, PH.D.

12037 Floating Clouds Path, Clarksville, Maryland, 21029-1678

About Keith William Hannan

Keith William Hannan is a psychologist based in Clarksville, Maryland who is specialized in Clinical Psychology. Active license number of Keith William Hannan is 02666 for Clinical Psychology in Maryland. His current practice location is 12037 Floating Clouds Path, Clarksville. Patients can contact him at 410-707-0100. Keith William Hannan, PH.D., specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1093758591.

Keith William Hannan 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

Keith William Hannan'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 Keith William Hannan
Specialization Clinical Psychology
Credentials PH.D.
Gender Male
Practice Address: 12037 Floating Clouds Path,
Clarksville, MD - 21029-1678

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 Number1093758591
NPI Enumeration Date: 13 Jun, 2006
NPI Last Update On: 13 Jul, 2026

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 Keith William Hannan are as mentioned below.

License NumberSpecializationStateStatus
02666Clinical Psychology MarylandPrimary

Mailing Address

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

Keith William Hannan
12037 Floating Clouds Path,
Clarksville, MD - 21029-1678
Phone: 410-707-0100

Book an Appointment with Keith William Hannan

To schedule an appointment, contact Keith William Hannan at 12037 Floating Clouds Path, Clarksville, Maryland or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Keith William Hannan:

Keith William Hannan 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, Keith William Hannan 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.

Keith William Hannan practices at 12037 Floating Clouds Path, Clarksville, Maryland, 21029-1678.

To schedule an appointment with Keith William Hannan, please contact the office at 410-707-0100.

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