Summary

Dr. Koek graduated from the Wayne State University School of Medicine,Wayne State University School of Medicine in 1985. He works in Los Angeles, CA and 1 other location and specializes in Psychiatry. Dr. Koek is affiliated with West Los Angeles Va Medical Center.

Quick Facts

  • 5
  • 41 years of experience
  • 15 insurance plans accepted
  • WAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
  • 1 specialty
  • 12 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 2 office locations
  • Male

Office Locations

Dr. Ralph Jan Koek has 2 locations

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Dr. Ralph Jan Koek, MDDr. Juan Galvez-Buccollini, MDDr. Daniel Pimstone, MDDr. Luis E. Gonzalez, MD
PsychiatryPsychiatryPsychiatryPsychiatry
Accepts New Patients Accepts New Patients Accepts New Patients
4.2 
41 Years of Experience 23 Years of Experience 21 Years of Experience 8 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks Spanish, English Speaks English Speaks English, Spanish
Los Angeles , CAEncino , CAWestlake Village , CALOS ANGELES , CA
Med School: WAYNE STATE UNIVERSITY SCHOOL OF MEDICINE Med School: Universidad Peruana Cayetano Heredia Med School: UC Davis Med School: Medical College Of Wisconsin
Current Profile
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Insurance Plans Accepted by Dr. Ralph Jan Koek

  • Aetna
  • Anthem Blue Cross
  • Blue Shield of California
  • Cigna
  • HealthPartners
  • Kaiser Permanente
  • Kaiser Permanente - PPO
  • L.A. Care Health Plan
  • L.A. Care Health Plan - HMO
  • Magellan Health
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • UnitedHealthcare
  • UnitedHealthcare - HMO

Medical Specialties

Dr. Ralph Jan Koek has the following specialty

Specialty Expertise

Dr. Ralph Jan Koek has the following 12 areas of expertise

  • Attention Deficit Disorder (ADD) / Attention Deficit Hyperactivity Disorder (ADHD)
  • Attention-Deficit/Hyperactivity Disorder (ADHD)
  • Bipolar Disorder
  • Depression
  • Depressive Disorder
  • Insomnia
  • Manic Depressive Disorder
  • Mental Illness
  • Mood Disorders
  • Personality Disorder
  • Schizophrenia
  • Sleep Disorders

Certifications, License, & Education

41 Years Experience

Dr. Ralph Jan Koek holds an expired medical license in the state of California.

Medical License

Medical Doctor with an expired medical license in the state of California that expired in 2026.

Education & Training

Medical School

Graduated from WAYNE STATE UNIVERSITY SCHOOL OF MEDICINE in 1986 and Wayne State University School Of Medicine in 1985.

NPI Number

Dr. Koek's NPI number is 1356428924.

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Frequently Asked Questions

Does Dr. Ralph Jan Koek accept my insurance?
You can see the insurance plans that Dr. Ralph Jan Koek accepts on their Vitals profile.
Is Dr. Ralph Jan Koek accepting new patients?
Dr. Ralph Jan Koek has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Which hospitals is Dr. Ralph Jan Koek affiliated with?
Dr. Ralph Jan Koek is affiliated with West Los Angeles Va Medical Center.
Does Dr. Ralph Jan Koek accept virtual/telehealth appointments?
Dr. Ralph Jan Koek has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Ralph Jan Koek's office located?
Dr. Ralph Jan Koek's office is located at 11301 Wilshire Blvd, Los Angeles, CA, 90073.

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