Psychiatrist

Dr. Darren Mast, DO

5501 Old York Rd Ste 1, Philadelphia, Pennsylvania, 19141-3098

About Dr. Darren Mast

Dr. Darren Mast is a psychiatrist based in Philadelphia, Pennsylvania who is specialized in Psychiatry. Active license number of Dr. Darren Mast is OT022681 for Psychiatry in Pennsylvania. His current practice location is 5501 Old York Rd Ste 1, Philadelphia. Patients can contact him at 215-456-9850. Dr. Darren Mast, DO, specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1548944853.

Dr. Darren Mast 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

Dr. Darren Mast'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. Darren Mast
Specialization Psychiatry
Credentials DO
Gender Male
Practice Address: 5501 Old York Rd Ste 1,
Philadelphia, PA - 19141-3098

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 Number1548944853
NPI Enumeration Date: 15 Jun, 2023
NPI Last Update On: 16 Jun, 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 Dr. Darren Mast are as mentioned below.

License NumberSpecializationStateStatus
OT022681Psychiatry PennsylvaniaPrimary

Mailing Address

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

Dr. Darren Mast
5501 Old York Rd Ste 1,
Philadelphia, PA - 19141-3098
Phone: 215-456-9850

Book an Appointment with Dr. Darren Mast

To schedule an appointment, contact Dr. Darren Mast at 5501 Old York Rd Ste 1, Philadelphia, Pennsylvania or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Darren Mast:

Dr. Darren Mast 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, Dr. Darren Mast 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. Darren Mast practices at 5501 Old York Rd Ste 1, Philadelphia, Pennsylvania, 19141-3098.

To schedule an appointment with Dr. Darren Mast, please contact the office at 215-456-9850.

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