National Provider Identifier Database

MARTIN B KORETZKY, PhD – NPI #1205977204
Psychologist

A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.


Contact Information

MARTIN B KORETZKY, PhD
10751 FALLS RD
LUTHERVILLE, MD21093-4517
Phone: 410-823-3626
Fax: 410-296-5018
Website:
Specialty Taxonomy Code
* Psychologist 103T00000X
Addiction (Substance Use Disorder) 103TA0400X
Clinical 103TC0700X
Family 103TF0000X
Health Service 103TH0100X

* Indicates primary specialty

NPI Profile & details for MARTIN B KORETZKY

NPI Number 1205977204
Credentials PhD
Entity Individual
Enumeration date 02/11/2007
Last updated 09/11/2025 - About 9 months ago
Sole proprietor1 Yes
Identifiers
  • MD License #: 1741
Hospital affiliation n/a

1 A sole proprietor/sole proprietorship is an individual, and as such, is eligible for a single NPI number. The sole proprietor must apply for the NPI number using his or her own Social Security Number (SSN), not an Employer Identification Number (EIN) even if he/she has an EIN.

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