Psychologist | Clinical Psychology

David Mahoney

20400 Observation Dr Ste 103, Germantown, Maryland, 20876-4086

About David Mahoney

David Mahoney is a psychologist based in Germantown, Maryland who is specialized in Clinical Psychology. Active license number of David Mahoney is 04980 for Clinical Psychology in Maryland. His current practice location is 20400 Observation Dr Ste 103, Germantown. Patients can contact him at 301-873-7214. David Mahoney NPI number (Unique professional ID assigned by NPPES) is 1295090421.

David Mahoney 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

David Mahoney'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 David Mahoney
Specialization Clinical Psychology
Gender Male
Practice Address: 20400 Observation Dr Ste 103,
Germantown, MD - 20876-4086

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 Number1295090421
NPI Enumeration Date: 13 Jul, 2012
NPI Last Update On: 13 Jul, 2012

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 David Mahoney are as mentioned below.

License NumberSpecializationStateStatus
04980Clinical 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.

David Mahoney
20400 Observation Dr Ste 103,
Germantown, MD - 20876-4086
Phone: 301-873-7214

Book an Appointment with David Mahoney

To schedule an appointment, contact David Mahoney at 20400 Observation Dr Ste 103, Germantown, Maryland or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about David Mahoney:

David Mahoney 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, David Mahoney 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.

David Mahoney practices at 20400 Observation Dr Ste 103, Germantown, Maryland, 20876-4086.

To schedule an appointment with David Mahoney, please contact the office at 301-873-7214.

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