Psychologist | Clinical Psychology

Dr. Daniel Francis O'neill, PSY.D.

2938 Columbia Ave, Manor West Commons Suite 302, Lancaster, Pennsylvania, 17603-7000

About Dr. Daniel Francis O'neill

Dr. Daniel Francis O'neill is a psychologist based in Lancaster, Pennsylvania who is specialized in Clinical Psychology. Active license number of Dr. Daniel Francis O'neill is PS005051L for Clinical Psychology in Pennsylvania. His current practice location is 2938 Columbia Ave, Manor West Commons Suite 302, Lancaster. Patients can contact him at 717-314-3298. Dr. Daniel Francis O'neill, PSY.D., specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1710149422.

Dr. Daniel Francis O'neill 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

Dr. Daniel Francis O'neill'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. Daniel Francis O'neill
Specialization Clinical Psychology
Credentials PSY.D.
Gender Male
Practice Address: 2938 Columbia Ave, Manor West Commons Suite 302
Lancaster, PA - 17603-7000

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 Number1710149422
NPI Enumeration Date: 25 Jun, 2008
NPI Last Update On: 25 Jun, 2008

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. Daniel Francis O'neill are as mentioned below.

License NumberSpecializationStateStatus
PS005051LClinical 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.

Dr. Daniel Francis O'neill
1026 Flagstone Ct,
Lancaster, PA - 17603-9457
Phone: 717-314-3298

Book an Appointment with Dr. Daniel Francis O'neill

To schedule an appointment, contact Dr. Daniel Francis O'neill at 2938 Columbia Ave, Manor West Commons Suite 302, Lancaster, Pennsylvania or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Dr. Daniel Francis O'neill:

Dr. Daniel Francis O'neill 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, Dr. Daniel Francis O'neill 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. Daniel Francis O'neill practices at 2938 Columbia Ave, Manor West Commons Suite 302, Lancaster, Pennsylvania, 17603-7000.

To schedule an appointment with Dr. Daniel Francis O'neill, please contact the office at 717-314-3298.

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