Psychologist | Clinical Psychology

Dr. John D. Sweetland, PH.D.

1400 Wantagh Ave, Suite 212, Wantagh, New York, 11793-2257

About Dr. John D. Sweetland

Dr. John D. Sweetland is a psychologist based in Wantagh, New York who is specialized in Clinical Psychology. Active license number of Dr. John D. Sweetland is 006461 for Clinical Psychology in New York. His current practice location is 1400 Wantagh Ave, Suite 212, Wantagh. Patients can contact him at 516-889-9190. Dr. John D. Sweetland, PH.D., specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1932128444.

Dr. John D. Sweetland 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. John D. Sweetland'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. John D. Sweetland
Specialization Clinical Psychology
Credentials PH.D.
Gender Male
Practice Address: 1400 Wantagh Ave, Suite 212
Wantagh, NY - 11793-2257

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 Number1932128444
NPI Enumeration Date: 18 Jul, 2006
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. John D. Sweetland are as mentioned below.

License NumberSpecializationStateStatus
006461Clinical Psychology New YorkPrimary

Other Medical Identifiers

Other professional identifiers associated with Dr. John D. Sweetland such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
0023096OtherNew YorkGHI

Mailing Address

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

Dr. John D. Sweetland
Po Box 496, 53 Hewlett Ave.
Point Lookout, NY - 11569-0496
Phone: 516-889-9190

Book an Appointment with Dr. John D. Sweetland

To schedule an appointment, contact Dr. John D. Sweetland at 1400 Wantagh Ave, Suite 212, Wantagh, New York or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. John D. Sweetland:

Dr. John D. Sweetland 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. John D. Sweetland 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. John D. Sweetland practices at 1400 Wantagh Ave, Suite 212, Wantagh, New York, 11793-2257.

To schedule an appointment with Dr. John D. Sweetland, please contact the office at 516-889-9190.

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