Psychologist | Clinical Psychology | 42+ years experience

Gerard J. Erker, PHD

6420 Clayton Rd, 6th Floor, Saint Louis, Missouri, 63117-1811

About Gerard J. Erker

Gerard J. Erker is a psychologist based in Saint Louis, Missouri with 42 years of experience in Clinical Psychology. He completed his graduation from Saint Louis University School Of Medicine in 1984. He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Gerard J. Erker is PY01284 for Psychology in Missouri. His current practice location is 6420 Clayton Rd, 6th Floor, Saint Louis. Patients can contact him at 314-768-5205 or can fax him at 314-768-5315. Gerard J. Erker, PHD, specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1023052479.

Gerard J. Erker 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Gerard J. Erker'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 Gerard J. Erker
Specialization Clinical Psychology
Credentials PHD
Accepts Medicare Assignment Yes
Experience 42+ years
Medical School Attended Saint Louis University School Of Medicine
Graduation Year 1984
Gender Male
Practice Address: 6420 Clayton Rd, 6th Floor
Saint Louis, MO - 63117-1811
Fax 314-768-5315

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 8628108123
Enrollment ID I20100609000976
NPI Number1023052479
NPI Enumeration Date: 16 Jun, 2006
NPI Last Update On: 11 Sep, 2025

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 Gerard J. Erker are as mentioned below.

License NumberSpecializationStateStatus
PY01284Psychology MissouriPrimary
01284Clinical Psychology MissouriSecondary

Group Practice

Group practices are practice of medicine by a group of healthcare professionals who share their premises and other resources. Following list states all the group name with which Gerard J. Erker is associated with along with the number of members in that group.
Organization Name (Group PAC ID) Members
Ssm Select Rehab St Louis Llc (2567510449)25

Mailing Address

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

Gerard J. Erker
1836 Lackland Hill Pkwy, Attnt: Credentialing Department
Saint Louis, MO - 63146-3572
Phone: 314-989-0300
Fax: 314-810-1399

Book an Appointment with Gerard J. Erker

To schedule an appointment, contact Gerard J. Erker at 6420 Clayton Rd, 6th Floor, Saint Louis, Missouri or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Gerard J. Erker:

Gerard J. Erker is a psychologist specializing in Psychology. He is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat 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 by psycheducational evaluation, therapy, remediation, and consultation.

Gerard J. Erker completed his education (PHD) from Saint Louis University School Of Medicine in 1984.

Gerard J. Erker has approximately 42 years of experience in Psychology.

Yes, Gerard J. Erker accepts Medicare assignment, meaning the provider participates in Medicare and accepts Medicare-approved amounts for eligible services.

Yes, Gerard J. Erker 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.

Gerard J. Erker practices at 6420 Clayton Rd, 6th Floor, Saint Louis, Missouri, 63117-1811.

To schedule an appointment with Gerard J. Erker, please contact the office at 314-768-5205.

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