Psychologist | Clinical Psychology

Lisa Joan Diefenbach, PSY.D.

793 Old Route 119 Hwy N, Indiana, Pennsylvania, 15701-1372

About Lisa Joan Diefenbach

Lisa Joan Diefenbach is a psychologist based in Indiana, Pennsylvania who is specialized in Clinical Psychology. Active license number of Lisa Joan Diefenbach is PS015877 for Clinical Psychology in Pennsylvania. Her current practice location is 793 Old Route 119 Hwy N, Indiana. Patients can contact her at 724-465-5576 or can fax her at 724-463-3262. Lisa Joan Diefenbach, PSY.D., specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1467471128.

Lisa Joan Diefenbach 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

Lisa Joan Diefenbach'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 Lisa Joan Diefenbach
Specialization Clinical Psychology
Credentials PSY.D.
Gender Female
Practice Address: 793 Old Route 119 Hwy N,
Indiana, PA - 15701-1372
Fax 724-463-3262

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 Number1467471128
NPI Enumeration Date: 19 Jul, 2006
NPI Last Update On: 09 Jul, 2007

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 Lisa Joan Diefenbach are as mentioned below.

License NumberSpecializationStateStatus
PS015877Clinical 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.

Lisa Joan Diefenbach
793 Old Route 119 Hwy N,
Indiana, PA - 15701-1372
Phone: 724-465-5576
Fax: 724-463-3262

Book an Appointment with Lisa Joan Diefenbach

To schedule an appointment, contact Lisa Joan Diefenbach at 793 Old Route 119 Hwy N, Indiana, Pennsylvania or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Lisa Joan Diefenbach:

Lisa Joan Diefenbach 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, Lisa Joan Diefenbach 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.

Lisa Joan Diefenbach practices at 793 Old Route 119 Hwy N, Indiana, Pennsylvania, 15701-1372.

To schedule an appointment with Lisa Joan Diefenbach, please contact the office at 724-465-5576.

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