Psychologist | Clinical Psychology

Dr. Helen Marcia Grebow, PH.D., PSY.D.

19335 Olivos Dr, Tarzana, California, 91356-4440

About Dr. Helen Marcia Grebow

Dr. Helen Marcia Grebow is a psychologist based in Tarzana, California who is specialized in Clinical Psychology. Active license number of Dr. Helen Marcia Grebow is PSY4066 for Clinical Psychology in California. Her current practice location is 19335 Olivos Dr, Tarzana. Patients can contact her at 818-788-3575. Dr. Helen Marcia Grebow, PH.D., PSY.D., specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1376806901.

Dr. Helen Marcia Grebow 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

Dr. Helen Marcia Grebow'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. Helen Marcia Grebow
Specialization Clinical Psychology
Credentials PH.D., PSY.D.
Gender Female
Practice Address: 19335 Olivos Dr,
Tarzana, CA - 91356-4440

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 Number1376806901
NPI Enumeration Date: 19 Jun, 2012
NPI Last Update On: 19 Jun, 2012

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. Helen Marcia Grebow are as mentioned below.

License NumberSpecializationStateStatus
PSY4066Clinical Psychology CaliforniaPrimary

Mailing Address

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

Dr. Helen Marcia Grebow
19335 Olivos Drive,
Tarzana, CA - 91356-4440
Phone: 818-788-3575

Book an Appointment with Dr. Helen Marcia Grebow

To schedule an appointment, contact Dr. Helen Marcia Grebow at 19335 Olivos Dr, Tarzana, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Helen Marcia Grebow:

Dr. Helen Marcia Grebow 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. Helen Marcia Grebow 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. Helen Marcia Grebow practices at 19335 Olivos Dr, Tarzana, California, 91356-4440.

To schedule an appointment with Dr. Helen Marcia Grebow, please contact the office at 818-788-3575.

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