Psychiatrist | Child & Adolescent Psychiatry

Lily G Millen, DO

300 Longwood Ave, Boston, Massachusetts, 02115-5724

About Lily G Millen

Lily G Millen is a psychiatrist based in Boston, Massachusetts who is specialized in Child & Adolescent Psychiatry. Active license number of Lily G Millen is 1016231 for Child & Adolescent Psychiatry in Massachusetts. Her current practice location is 300 Longwood Ave, Boston. Patients can contact her at 617-355-6000. Lily G Millen, DO, specializes in Child & Adolescent Psychiatry and her NPI number (Unique professional ID assigned by NPPES) is 1609404607.

Lily G Millen has done additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

Practice Information

Lily G Millen'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 Lily G Millen
Specialization Child & Adolescent Psychiatry
Credentials DO
Gender Female
Practice Address: 300 Longwood Ave,
Boston, MA - 02115-5724

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 Number1609404607
NPI Enumeration Date: 27 Mar, 2020
NPI Last Update On: 02 May, 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 Lily G Millen are as mentioned below.

License NumberSpecializationStateStatus
1016231Child & Adolescent Psychiatry MassachusettsPrimary

Mailing Address

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

Lily G Millen
300 Longwood Ave,
Boston, MA - 02115-5724
Phone: 617-355-6000

Book an Appointment with Lily G Millen

To schedule an appointment, contact Lily G Millen at 300 Longwood Ave, Boston, Massachusetts or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Lily G Millen:

Lily G Millen is a psychiatrist specializing in Child & Adolescent Psychiatry. She has done additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

Yes, Lily G Millen 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.

Lily G Millen practices at 300 Longwood Ave, Boston, Massachusetts, 02115-5724.

To schedule an appointment with Lily G Millen, please contact the office at 617-355-6000.

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