Psychiatrist | Child & Adolescent Psychiatry | 17+ years experience

Dr. Marianne W Tateosian, D.O.

500 Commack Rd Ste 105, Commack, New York, 11725-5020

About Dr. Marianne W Tateosian

Dr. Marianne W Tateosian is a psychiatrist based in Commack, New York with 17 years of experience in Child & Adolescent Psychiatry. She completed her graduation from Nova Southeastern College Of Osteo Medicine in 2009. She is also affiliated with hospitals like She accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Dr. Marianne W Tateosian is 268594-1 for Psychiatry in New York. Her current practice location is 500 Commack Rd Ste 105, Commack. Patients can contact her at 631-632-9510 or can fax her at 631-216-8319. Dr. Marianne W Tateosian, D.O., specializes in Child & Adolescent Psychiatry and her NPI number (Unique professional ID assigned by NPPES) is 1649403874.

Dr. Marianne W Tateosian has done additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

Practice Information

Dr. Marianne W Tateosian'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. Marianne W Tateosian
Specialization Child & Adolescent Psychiatry
Credentials D.O.
Accepts Medicare Assignment Yes
Experience 17+ years
Medical School Attended Nova Southeastern College Of Osteo Medicine
Graduation Year 2009
Gender Female
Practice Address: 500 Commack Rd Ste 105,
Commack, NY - 11725-5020
Fax 631-216-8319

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.

PAC ID 8527286285
Enrollment ID I20140822000385
NPI Number1649403874
NPI Enumeration Date: 04 Sep, 2009
NPI Last Update On: 04 Aug, 2020

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. Marianne W Tateosian are as mentioned below.

License NumberSpecializationStateStatus
268594-1Psychiatry New YorkPrimary
68136Child & Adolescent Psychiatry WisconsinSecondary
Student in an Organized Health Care Education/Training Program Secondary

Hospital Affiliation

Doctors are affiliated to many hospitals whom they worked with in the past or are presently working with. One doctor can be affiliated to four to five hospitals at a time.
Hospital Name (CCN) StateHospital Type
(521341)Richland center, WICritical Access Hospital

Group Practice

Group practices are practice of medicine by a group of healthcare professionals who share their premises and other resources. Following list states all the group name with which Dr. Marianne W Tateosian is associated with along with the number of members in that group.
Organization Name (Group PAC ID) Members
Stony Brook Psychiatric Associates University Faculty Practice Corpor (7315836731)70

Mailing Address

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

Dr. Marianne W Tateosian
Po Box 1559,
Stony Brook, NY - 11790-0989
Phone: 631-444-0650
Fax: 631-638-4170

Book an Appointment with Dr. Marianne W Tateosian

To schedule an appointment, contact Dr. Marianne W Tateosian at 500 Commack Rd Ste 105, Commack, New York or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Dr. Marianne W Tateosian:

Dr. Marianne W Tateosian is a psychiatrist specializing in Psychiatry. She specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Dr. Marianne W Tateosian completed her education (D.O.) from Nova Southeastern College Of Osteo Medicine in 2009.

Dr. Marianne W Tateosian has approximately 17 years of experience in Psychiatry.

Yes, Dr. Marianne W Tateosian accepts Medicare assignment, meaning the provider participates in Medicare and accepts Medicare-approved amounts for eligible services.

Yes, Dr. Marianne W Tateosian 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. Marianne W Tateosian practices at 500 Commack Rd Ste 105, Commack, New York, 11725-5020.

To schedule an appointment with Dr. Marianne W Tateosian, please contact the office at 631-632-9510.

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