Psychologist | Counseling Psychology

Dr. Cortney Del Duffy, PH.D.

306 W Superior St Ste 405, Duluth, Minnesota, 55802-5017

About Dr. Cortney Del Duffy

Dr. Cortney Del Duffy is a psychologist based in Duluth, Minnesota who is specialized in Counseling Psychology. Active license number of Dr. Cortney Del Duffy is LP6283 for Clinical Psychology in Minnesota. Her current practice location is 306 W Superior St Ste 405, Duluth. Patients can contact her at 218-203-9335. Dr. Cortney Del Duffy, PH.D., specializes in Counseling Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1740763085.

Dr. Cortney Del Duffy help people with physical, emotional and mental health issues, improve their sense of well‐being, alleviate feelings of distress and resolve crises. She also provides assessment, diagnosis, and treatment of more severe psychological symptoms.
Counseling psychologists mainly focuses on: Healthy aspects and strengths of clients (whether being seen as individuals, couples, families, groups or organizations; Environmental/situational influences (how cultural, gender and lifestyle issues shape people’s experiences and concerns); Issues of diversity and social justice (e.g., advocacy); The role of career and work in peoples’ lives.

Practice Information

Dr. Cortney Del Duffy'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. Cortney Del Duffy
Specialization Counseling Psychology
Credentials PH.D.
Gender Female
Practice Address: 306 W Superior St Ste 405,
Duluth, MN - 55802-5017

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 Number1740763085
NPI Enumeration Date: 12 Sep, 2018
NPI Last Update On: 15 Jul, 2021

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. Cortney Del Duffy are as mentioned below.

License NumberSpecializationStateStatus
LP6283Clinical Psychology MinnesotaPrimary
LP6283Counseling Psychology MinnesotaSecondary

Mailing Address

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

Dr. Cortney Del Duffy
2827 Jefferson St,
Duluth, MN - 55812-2323
Phone: 612-910-1653

Book an Appointment with Dr. Cortney Del Duffy

To schedule an appointment, contact Dr. Cortney Del Duffy at 306 W Superior St Ste 405, Duluth, Minnesota or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Cortney Del Duffy:

Dr. Cortney Del Duffy 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, Dr. Cortney Del Duffy 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. Cortney Del Duffy practices at 306 W Superior St Ste 405, Duluth, Minnesota, 55802-5017.

To schedule an appointment with Dr. Cortney Del Duffy, please contact the office at 218-203-9335.

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