Psychologist | Clinical Psychology

Melissa Xanthopoulos, PH.D.

3440 Market St, Suite 200, Philadelphia, Pennsylvania, 19104-3325

About Melissa Xanthopoulos

Melissa Xanthopoulos is a psychologist based in Philadelphia, Pennsylvania who is specialized in Clinical Psychology. Active license number of Melissa Xanthopoulos is PS016280 for Clinical Psychology in Pennsylvania. Her current practice location is 3440 Market St, Suite 200, Philadelphia. Patients can contact her at 215-590-7532 or can fax her at 215-590-4251. Melissa Xanthopoulos, PH.D., specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1801074380.

Melissa Xanthopoulos is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Melissa Xanthopoulos'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 Melissa Xanthopoulos
Specialization Clinical Psychology
Credentials PH.D.
Gender Female
Practice Address: 3440 Market St, Suite 200
Philadelphia, PA - 19104-3325
Fax 215-590-4251

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 Number1801074380
NPI Enumeration Date: 06 Feb, 2008
NPI Last Update On: 04 Sep, 2012

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 Melissa Xanthopoulos are as mentioned below.

License NumberSpecializationStateStatus
PS016280Clinical Psychology PennsylvaniaPrimary

Mailing Address

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

Melissa Xanthopoulos
3440 Market St, Suite 410
Philadelphia, PA - 19104-3325
Phone: 215-590-7532
Fax: 215-590-4251

Book an Appointment with Melissa Xanthopoulos

To schedule an appointment, contact Melissa Xanthopoulos at 3440 Market St, Suite 200, Philadelphia, Pennsylvania or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Melissa Xanthopoulos:

Melissa Xanthopoulos is a psychologist specializing in Clinical Psychology. She is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Melissa Xanthopoulos 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.

Melissa Xanthopoulos practices at 3440 Market St, Suite 200, Philadelphia, Pennsylvania, 19104-3325.

To schedule an appointment with Melissa Xanthopoulos, please contact the office at 215-590-7532.

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