Psychiatrist

Peter J Siekmeier, M.D.

115 Mill Street #310a, Mclean Hospital, Belmont, Massachusetts, 02478

About Peter J Siekmeier

Peter J Siekmeier is a psychiatrist based in Belmont, Massachusetts who is specialized in Psychiatry. Active license number of Peter J Siekmeier is 158642 for Psychiatry in Massachusetts. His current practice location is 115 Mill Street #310a, Mclean Hospital, Belmont. Patients can contact him at 617-855-3588. Peter J Siekmeier, M.D., specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1477590156.

Peter J Siekmeier 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.

Practice Information

Peter J Siekmeier'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 Peter J Siekmeier
Specialization Psychiatry
Credentials M.D.
Gender Male
Practice Address: 115 Mill Street #310a, Mclean Hospital
Belmont, MA - 02478

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 Number1477590156
NPI Enumeration Date: 01 Jun, 2006
NPI Last Update On: 13 Jul, 2026

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 Peter J Siekmeier are as mentioned below.

License NumberSpecializationStateStatus
158642Psychiatry MassachusettsPrimary

Mailing Address

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

Peter J Siekmeier
115 Mill Street #310a, Mclean Hospital
Belmont, MA - 02478
Phone: 617-855-3588

Book an Appointment with Peter J Siekmeier

To schedule an appointment, contact Peter J Siekmeier at 115 Mill Street #310a, Mclean Hospital, Belmont, Massachusetts or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Peter J Siekmeier:

Peter J Siekmeier is a psychiatrist specializing in Psychiatry. He 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.

Yes, Peter J Siekmeier 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.

Peter J Siekmeier practices at 115 Mill Street #310a, Mclean Hospital, Belmont, Massachusetts, 02478.

To schedule an appointment with Peter J Siekmeier, please contact the office at 617-855-3588.

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