Psychologist | Clinical Psychology

William Lamb

3535 Market St, 2nd Floor, Philadelphia, Pennsylvania, 19104-3309

About William Lamb

William Lamb is a psychologist based in Philadelphia, Pennsylvania who is specialized in Clinical Psychology. Active license number of William Lamb is PS017827 for Clinical Psychology in Pennsylvania. His current practice location is 3535 Market St, 2nd Floor, Philadelphia. Patients can contact him at 215-898-1173. William Lamb NPI number (Unique professional ID assigned by NPPES) is 1639538408.

William Lamb 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

William Lamb'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 William Lamb
Specialization Clinical Psychology
Gender Male
Practice Address: 3535 Market St, 2nd Floor
Philadelphia, PA - 19104-3309

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 Number1639538408
NPI Enumeration Date: 22 Feb, 2016
NPI Last Update On: 22 Feb, 2016

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 William Lamb are as mentioned below.

License NumberSpecializationStateStatus
PS017827Clinical 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.

William Lamb
3535 Market St, 2nd Floor
Philadelphia, PA - 19104-3309

Book an Appointment with William Lamb

To schedule an appointment, contact William Lamb at 3535 Market St, 2nd Floor, Philadelphia, Pennsylvania or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about William Lamb:

William Lamb is a psychologist specializing in Clinical Psychology. He 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, William Lamb 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.

William Lamb practices at 3535 Market St, 2nd Floor, Philadelphia, Pennsylvania, 19104-3309.

To schedule an appointment with William Lamb, please contact the office at 215-898-1173.

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