Dr. Patrick Michael Grehan
PH.D. | Clinical Psychologist | 28+ years Exp
721 Franklin Ave, Garden City
New York, 11530-4524
516-256-9250 Maps & DirectionsDr. Patrick Michael Grehan is a Garden City, New York based psychologist with 28 years of experience in Clinical Psychology. He completed his graduation in 1998. He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Dr. Patrick Michael Grehan is 014194 for Clinical Psychology in New York. His current practice location is 721 Franklin Ave, Garden City. Patients can reach him at 516-256-9250. Dr. Patrick Michael Grehan is PH.D. in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1407924368.
Dr. Patrick Michael Grehan 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.
Complete Profile:
Dr. Patrick Michael Grehan speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
| Name: | Dr. Patrick Michael Grehan |
| Specialization: | Clinical Psychology |
| Gender: | Male |
| Credentials: | PH.D. |
| Experience: | 28+ years |
| Medical School Attended: | Other |
| Graduation Year: | 1998 |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 721 Franklin Ave, Garden City,
New York, 11530-4524 |
| Phone: | 516-256-9250 |
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.
| PAC ID: | 1850494394 |
| Enrollment ID: | I20070321000385 |
| NPI Number: | 1407924368 |
| NPI Enumeration Date: | 30 Nov, 2006 |
| NPI Last Update On: | 21 Jun, 2013 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Patrick Michael Grehan are as mentioned below.
| License Number | Specialization | State | Status | |
| 014194 | Clinical Psychology | New York | Primary | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Dr. Patrick Michael Grehan
721 Franklin Ave,
Garden City, New York |
| Zip: | 11530-4524 |
| Phone Number: | 516-256-9250 |
Patients can reach Dr. Patrick Michael Grehan at
721 Franklin Ave, Garden City, New York or can
call to book an appointment on 516-256-9250.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.