Psychologist | Clinical Psychology

Dr. Martin Joseph Brennan, PHD

278 Hamilton Rd, Rockville Centre, New York, 11570-2227

About Dr. Martin Joseph Brennan

Dr. Martin Joseph Brennan is a psychologist based in Rockville Centre, New York who is specialized in Clinical Psychology. Active license number of Dr. Martin Joseph Brennan is 009990-1 for Clinical Psychology in New York. His current practice location is 278 Hamilton Rd, Rockville Centre. Patients can contact him at 516-594-0848 or can fax him at 212-493-5594. Dr. Martin Joseph Brennan, PHD, specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1649313339.

Dr. Martin Joseph Brennan 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

Dr. Martin Joseph Brennan'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 Dr. Martin Joseph Brennan
Specialization Clinical Psychology
Credentials PHD
Gender Male
Practice Address: 278 Hamilton Rd,
Rockville Centre, NY - 11570-2227
Fax 212-493-5594

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 Number1649313339
NPI Enumeration Date: 14 Feb, 2007
NPI Last Update On: 08 Jul, 2007

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 Dr. Martin Joseph Brennan are as mentioned below.

License NumberSpecializationStateStatus
009990-1Clinical Psychology New YorkPrimary

Other Medical Identifiers

Other professional identifiers associated with Dr. Martin Joseph Brennan such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
009990-1OtherNew YorkNYS PSYCHOLOGIST LICENSE

Mailing Address

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

Dr. Martin Joseph Brennan
278 Hamilton Rd,
Rockville Centre, NY - 11570-2227
Phone: 516-594-0848
Fax: 212-493-5594

Book an Appointment with Dr. Martin Joseph Brennan

To schedule an appointment, contact Dr. Martin Joseph Brennan at 278 Hamilton Rd, Rockville Centre, New York or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Martin Joseph Brennan:

Dr. Martin Joseph Brennan 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, Dr. Martin Joseph Brennan 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.

Dr. Martin Joseph Brennan practices at 278 Hamilton Rd, Rockville Centre, New York, 11570-2227.

To schedule an appointment with Dr. Martin Joseph Brennan, please contact the office at 516-594-0848.

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