Dr. William Martin Greenstadt is a psychologist based in New York, New York with 63 years of experience in Psychoanalysis. He completed his graduation from New York University School Of Medicine in 1963. 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. William Martin Greenstadt is 000338-1 for Psychoanalysis in New York. His current practice location is 232 Madison Ave, Suite 1308, New York. Patients can contact him at 212-686-9256 or can fax him at 212-686-4104. Dr. William Martin Greenstadt, PH.D., specializes in Psychoanalysis and his NPI number (Unique professional ID assigned by NPPES) is 1922021559.
Dr. William Martin Greenstadt is a practitioner of psychoanalysis which includes methods of eliciting from patients their past emotional experiences and their role in influencing their current mental life, in order to discover the conflicts and mechanisms by which their pathologic mental state has been produced and to furnish hints for psychotherapeutic procedures, the method employs free association, recall and interpretation of dreams and interpretation of transference and resistance phenomena. Psychoanalysis psychologist is an individual who is educated with a doctorís degree in psychoanalysis or psychology, trained at an established psychoanalytic institute, and practices or adheres to the principles of psychoanalysis. Psychoanalysis is a form of psychotherapy and a system of investigation for determining and understanding mental processes, which was originally conceived by Sigmund Freud. Psychoanalysis involves the analysis and interpretation of dreams, resistances, and transferences, and uses free association and catharsis. Clinical practice requires licensure.
Practice Information
Dr. William Martin Greenstadt'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. William Martin Greenstadt
Specialization Psychoanalysis
Credentials PH.D.
Accepts Medicare Assignment Yes
Experience 63+ years
Medical School Attended New York University School Of Medicine
Graduation Year 1963
Gender Male
Practice Address: 232 Madison Ave, Suite 1308 New York, NY - 10016-2901
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.
PAC ID
3476600347
Enrollment ID
I20090409000675
NPI Number1922021559
NPI Enumeration Date: 25 Jul, 2006
NPI Last Update On: 11 Sep, 2025
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. William Martin Greenstadt are as mentioned below.
License NumberSpecializationStateStatus
000338-1Psychoanalysis
New YorkPrimary
002936-1General Psychology
New YorkSecondary
Other Medical Identifiers
Other professional identifiers associated with Dr. William Martin Greenstadt such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
0001099299OtherNew YorkMHN VENDOR NO.
0097451OtherNew YorkGHI PROVIDER NUMBER
Mailing Address
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.
Dr. William Martin Greenstadt 232 Madison Avenue, Suite 1308 New York, NY - 10016 Phone: 212-686-9256 Fax: 212-686-4104
Book an Appointment with Dr. William Martin Greenstadt
To schedule an appointment, contact Dr. William Martin Greenstadt at 232 Madison Ave, Suite 1308, New York, New York or call the phone number listed below.
Below are some commonly asked questions about Dr. William Martin Greenstadt:
Dr. William Martin Greenstadt is a psychologist specializing in Psychoanalysis. He is a practitioner of psychoanalysis which includes methods of eliciting from patients their past emotional experiences and their role in influencing their current mental life, in order to discover the conflicts and mechanisms by which their pathologic mental state has been produced and to furnish hints for psychotherapeutic procedures, the method employs free association, recall and interpretation of dreams and interpretation of transference and resistance phenomena. Psychoanalysis psychologist is an individual who is educated with a doctorís degree in psychoanalysis or psychology, trained at an established psychoanalytic institute, and practices or adheres to the principles of psychoanalysis. Psychoanalysis is a form of psychotherapy and a system of investigation for determining and understanding mental processes, which was originally conceived by Sigmund Freud. Psychoanalysis involves the analysis and interpretation of dreams, resistances, and transferences, and uses free association and catharsis. Clinical practice requires licensure.
Dr. William Martin Greenstadt completed his education (PH.D.) from New York University School Of Medicine in 1963.
Dr. William Martin Greenstadt has approximately 63 years of experience in Psychoanalysis.
Yes, Dr. William Martin Greenstadt accepts Medicare assignment, meaning the provider participates in Medicare and accepts Medicare-approved amounts for eligible services.
Yes, Dr. William Martin Greenstadt 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. William Martin Greenstadt practices at 232 Madison Ave, Suite 1308, New York, New York, 10016-2901.
To schedule an appointment with Dr. William Martin Greenstadt, please contact the office at 212-686-9256.
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