Psychiatrist | Psychosomatic Medicine Psychiatry

Mr. John Marrero, RN

20 Weston Ln, Smithtown, New York, 11787-2422

About Mr. John Marrero

Mr. John Marrero is a psychiatrist based in Smithtown, New York who is specialized in Psychosomatic Medicine Psychiatry. Active license number of Mr. John Marrero is 720835 for Psychosomatic Medicine Psychiatry in New York. His current practice location is 20 Weston Ln, Smithtown. Patients can contact him at 516-325-8735. Mr. John Marrero, RN, specializes in Psychosomatic Medicine Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1174300115.

Mr. John Marrero specializes in the diagnosis and treatment of psychiatric disorders and symptoms in complex medically ill patients. He provide treatment to patients with acute or chronic medical, neurological, obstetrical or surgical illness in which psychiatric illness is affecting their medical care and/or quality of life such as HIV infection, organ transplantation, heart disease, renal failure, cancer, stroke, traumatic brain injury, high-risk pregnancy and COPD, among others. Patients also may be those who have a psychiatric disorder that is the direct consequence of a primary medical condition, or a somatoform disorder or psychological factors affecting a general medical condition.
Psychiatrists specializing in Psychosomatic Medicine provide consultation-liaison services in general medical hospitals, attend on medical psychiatry inpatient units, and provide collaborative care in primary care and other outpatient settings.

Practice Information

Mr. John Marrero'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 Mr. John Marrero
Specialization Psychosomatic Medicine Psychiatry
Credentials RN
Gender Male
Practice Address: 20 Weston Ln,
Smithtown, NY - 11787-2422

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 Number1174300115
NPI Enumeration Date: 13 Sep, 2023
NPI Last Update On: 13 Sep, 2023

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 Mr. John Marrero are as mentioned below.

License NumberSpecializationStateStatus
720835Psychosomatic Medicine Psychiatry New YorkPrimary

Mailing Address

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

Mr. John Marrero
20 Weston Ln,
Smithtown, NY - 11787-2422
Phone: 516-325-8735

Book an Appointment with Mr. John Marrero

To schedule an appointment, contact Mr. John Marrero at 20 Weston Ln, Smithtown, New York or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mr. John Marrero:

Mr. John Marrero is a psychiatrist specializing in Psychosomatic Medicine Psychiatry. He specializes in the diagnosis and treatment of psychiatric disorders and symptoms in complex medically ill patients. He provide treatment to patients with acute or chronic medical, neurological, obstetrical or surgical illness in which psychiatric illness is affecting their medical care and/or quality of life such as HIV infection, organ transplantation, heart disease, renal failure, cancer, stroke, traumatic brain injury, high-risk pregnancy and COPD, among others. Patients also may be those who have a psychiatric disorder that is the direct consequence of a primary medical condition, or a somatoform disorder or psychological factors affecting a general medical condition.
Psychiatrists specializing in Psychosomatic Medicine provide consultation-liaison services in general medical hospitals, attend on medical psychiatry inpatient units, and provide collaborative care in primary care and other outpatient settings.

Yes, Mr. John Marrero 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.

Mr. John Marrero practices at 20 Weston Ln, Smithtown, New York, 11787-2422.

To schedule an appointment with Mr. John Marrero, please contact the office at 516-325-8735.

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