Psychologist | Cognitive & Behavioral Psychology

Dr. Seth Jefferson Gillihan, PHD

355 Lancaster Ave, Building E, 2nd Floor, Haverford, Pennsylvania, 19041-1547

About Dr. Seth Jefferson Gillihan

Dr. Seth Jefferson Gillihan is a psychologist based in Haverford, Pennsylvania who is specialized in Cognitive & Behavioral Psychology. Active license number of Dr. Seth Jefferson Gillihan is PS016766 for General Psychology in Pennsylvania. His current practice location is 355 Lancaster Ave, Building E, 2nd Floor, Haverford. Patients can contact him at 610-649-3265 or can fax him at 610-537-5059. Dr. Seth Jefferson Gillihan, PHD, specializes in Cognitive & Behavioral Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1922245943.

Dr. Seth Jefferson Gillihan has variety of professional responsibilities, including assessment (identifying, diagnosing, and conceptualizing problems experienced by individuals or groups), intervention (creating, implementing and evaluating interventions designed to induce positive change) and consultation. Cognitive Behavioral Psychologists also participates in research, education, training, and clinical practice including a range of issues and populations.

Practice Information

Dr. Seth Jefferson Gillihan'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. Seth Jefferson Gillihan
Specialization Cognitive & Behavioral Psychology
Credentials PHD
Gender Male
Practice Address: 355 Lancaster Ave, Building E, 2nd Floor
Haverford, PA - 19041-1547
Fax 610-537-5059

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 Number1922245943
NPI Enumeration Date: 13 Jan, 2009
NPI Last Update On: 10 Aug, 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 Dr. Seth Jefferson Gillihan are as mentioned below.

License NumberSpecializationStateStatus
PS016766General Psychology PennsylvaniaPrimary
Cognitive & Behavioral Psychology Secondary

Mailing Address

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

Dr. Seth Jefferson Gillihan
355 Lancaster Ave, Building E, 2nd Floor
Haverford, PA - 19041-1547
Phone: 610-649-3265
Fax: 610-537-5059

Book an Appointment with Dr. Seth Jefferson Gillihan

To schedule an appointment, contact Dr. Seth Jefferson Gillihan at 355 Lancaster Ave, Building E, 2nd Floor, Haverford, Pennsylvania or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Dr. Seth Jefferson Gillihan:

Dr. Seth Jefferson Gillihan is a psychologist specializing in General Psychology. He is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability by psycheducational evaluation, therapy, remediation, and consultation.

Yes, Dr. Seth Jefferson Gillihan 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. Seth Jefferson Gillihan practices at 355 Lancaster Ave, Building E, 2nd Floor, Haverford, Pennsylvania, 19041-1547.

To schedule an appointment with Dr. Seth Jefferson Gillihan, please contact the office at 610-649-3265.

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