Psychologist | Clinical Psychology

Mrs. Shallary Simmons Duncan, PH.D.

721 Rose St, Williamsport, Pennsylvania, 17701-1678

About Mrs. Shallary Simmons Duncan

Mrs. Shallary Simmons Duncan is a psychologist based in Williamsport, Pennsylvania who is specialized in Clinical Psychology. Active license number of Mrs. Shallary Simmons Duncan is PC001004 for Clinical Psychology in Pennsylvania. Her current practice location is 721 Rose St, Williamsport. Patients can contact her at 570-971-7729. Mrs. Shallary Simmons Duncan, PH.D., specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1003125428.

Mrs. Shallary Simmons Duncan 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

Mrs. Shallary Simmons Duncan'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 Mrs. Shallary Simmons Duncan
Specialization Clinical Psychology
Credentials PH.D.
Gender Female
Practice Address: 721 Rose St,
Williamsport, PA - 17701-1678

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 Number1003125428
NPI Enumeration Date: 04 Oct, 2010
NPI Last Update On: 04 Oct, 2010

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 Mrs. Shallary Simmons Duncan are as mentioned below.

License NumberSpecializationStateStatus
PC001004Clinical 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.

Mrs. Shallary Simmons Duncan
721 Rose St,
Williamsport, PA - 17701-1678
Phone: 570-971-7729

Book an Appointment with Mrs. Shallary Simmons Duncan

To schedule an appointment, contact Mrs. Shallary Simmons Duncan at 721 Rose St, Williamsport, Pennsylvania or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mrs. Shallary Simmons Duncan:

Mrs. Shallary Simmons Duncan 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, Mrs. Shallary Simmons Duncan 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.

Mrs. Shallary Simmons Duncan practices at 721 Rose St, Williamsport, Pennsylvania, 17701-1678.

To schedule an appointment with Mrs. Shallary Simmons Duncan, please contact the office at 570-971-7729.

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