Psychologist | Clinical Psychology | 47+ years experience

Constance Halligan, PH.D.

5022 Dorsey Hall Dr, Suite 101, Ellicott City, Maryland, 21042-7711

About Constance Halligan

Constance Halligan is a psychologist based in Ellicott City, Maryland with 47 years of experience in Clinical Psychology. She completed her graduation in 1979. She accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Constance Halligan is 3499 for Clinical Psychology in Maryland. Her current practice location is 5022 Dorsey Hall Dr, Suite 101, Ellicott City. Patients can contact her at 410-730-7333. Constance Halligan, PH.D., specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1962543983.

Constance Halligan 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

Constance Halligan'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 Constance Halligan
Specialization Clinical Psychology
Credentials PH.D.
Accepts Medicare Assignment Yes
Experience 47+ years
Graduation Year 1979
Gender Female
Practice Address: 5022 Dorsey Hall Dr, Suite 101
Ellicott City, MD - 21042-7711

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.

PAC ID 5799823019
Enrollment ID I20091106000311
NPI Number1962543983
NPI Enumeration Date: 11 Feb, 2007
NPI Last Update On: 08 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 Constance Halligan are as mentioned below.

License NumberSpecializationStateStatus
3499Clinical Psychology MarylandPrimary

Mailing Address

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

Constance Halligan
5022 Dorsey Hall Dr, Suite 101
Ellicott City, MD - 21042-7711

Book an Appointment with Constance Halligan

To schedule an appointment, contact Constance Halligan at 5022 Dorsey Hall Dr, Suite 101, Ellicott City, Maryland or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Constance Halligan:

Constance Halligan 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.

Constance Halligan has approximately 47 years of experience in Clinical Psychology.

Yes, Constance Halligan accepts Medicare assignment, meaning the provider participates in Medicare and accepts Medicare-approved amounts for eligible services.

Yes, Constance Halligan 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.

Constance Halligan practices at 5022 Dorsey Hall Dr, Suite 101, Ellicott City, Maryland, 21042-7711.

To schedule an appointment with Constance Halligan, please contact the office at 410-730-7333.

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