Psychologist | Clinical Psychology

Mary Jean Shirk, PSYD

3535 Market St Ste 1230, Philadelphia, Pennsylvania, 19104-6509

About Mary Jean Shirk

Mary Jean Shirk is a psychologist based in Philadelphia, Pennsylvania who is specialized in Clinical Psychology. Active license number of Mary Jean Shirk is PS019648 for Clinical Psychology in Pennsylvania. Her current practice location is 3535 Market St Ste 1230, Philadelphia. Patients can contact her at 610-892-3800. Mary Jean Shirk, PSYD, specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1629698774.

Mary Jean Shirk 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

Mary Jean Shirk'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 Mary Jean Shirk
Specialization Clinical Psychology
Credentials PSYD
Gender Female
Practice Address: 3535 Market St Ste 1230,
Philadelphia, PA - 19104-6509

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 Number1629698774
NPI Enumeration Date: 19 Apr, 2020
NPI Last Update On: 21 Mar, 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 Mary Jean Shirk are as mentioned below.

License NumberSpecializationStateStatus
PS019648Clinical 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.

Mary Jean Shirk
3535 Market St Ste 1230,
Philadelphia, PA - 19104-6509
Phone: 610-892-3800

Book an Appointment with Mary Jean Shirk

To schedule an appointment, contact Mary Jean Shirk at 3535 Market St Ste 1230, Philadelphia, Pennsylvania or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mary Jean Shirk:

Mary Jean Shirk 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, Mary Jean Shirk 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.

Mary Jean Shirk practices at 3535 Market St Ste 1230, Philadelphia, Pennsylvania, 19104-6509.

To schedule an appointment with Mary Jean Shirk, please contact the office at 610-892-3800.

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