Summary

Dr. Ahn graduated from the New York University School of Medicine in 1998. He works in Westlake Village, CA and 1 other location and specializes in Radiation Oncology and Internal Medicine. Dr. Ahn is affiliated with Los Robles Regional Medical Center.

Quick Facts

  • accepting new patients
  • 5
  • 28 years of experience
  • 34 insurance plans accepted
  • speaks English, Spanish
  • Ucla Medical Center
  • 2 written reviews
  • 2 specialties
  • 5 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 5 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Eugene S Ahn has 5 locations

Westlake Radiation Oncology Center

1240 S Westlake Blvd Ste 103Westlake Village, CA 91361
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 4:00 pm
SatClosed
SunClosed

Coastal Radiation Oncology Medical Group

2230 Lynn Rd Ste 103Thousand Oaks, CA 91360
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Genesiscare

2985 Sycamore DrSimi Valley, CA 93065
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Los Robles Regional Medical Center

215 W Janss RdThousand Oaks, CA 91360

Adventist Health Simi Valley

2975 Sycamore DrSimi Valley, CA 93065

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Dr. Eugene S Ahn, MD
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Dr. Eugene S Ahn, MDDr. Leon Bernard Henderson, MDDr. Harvey Stuart FreyDr. Vladimir Ayvazyan, MD
Radiation OncologyMedical GeneticsRadiation OncologyInternal Medicine
Accepts New Patients Accepts New Patients
28 Years of Experience 34 Years of Experience 66 Years of Experience 20 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English, Russian
Westlake Village , CAWestlake Village , CASanta Monica , CALos Angeles , CA
Med School: New York University School Of Medicine Med School: Weill Cornell Medical College Med School: David Geffen School Of Medicine At Ucla Med School: Ross University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Eugene S Ahn

  • Accepts Medicare
  • Accepts Medicaid
  • AARP
  • Aetna
  • Aetna - HMO
  • Alignment Health Plan
  • Alignment Health Plan - HMO
  • AltaMed Senior BuenaCare (PACE)
  • Anthem Blue Cross
  • BLUE CROSS of CALIFORNIA
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Blue Shield of California - HMO
  • CalOptima
  • Central California Alliance for Health - Medicaid (Managed)
  • Cigna
  • Health Net - HMO
  • HealthChoice
  • Humana
  • Humana - HMO
  • Kaiser Permanente
  • L.A. Care Health Plan
  • L.A. Care Health Plan - HMO
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Molina Healthcare
  • Regence BlueCross BlueShield of Oregon
  • Santa Clara Family Health Plan
  • SCAN Health Plan
  • SCAN Health Plan - HMO
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • Wellcare
  • Western Health Advantage

Medical Specialties

Dr. Eugene S Ahn has the following 2 specialties

Specialty Expertise

Dr. Eugene S Ahn has the following 5 areas of expertise

  • Cancer
  • Head and Neck Cancer
  • Hodgkin's Lymphoma
  • Internal Medicine
  • Radiation Therapy

Certifications, License, & Education

28 Years Experience

Dr. Eugene S Ahn 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

Residency

Completed their residency at Ucla Medical Center.

Medical School

Graduated from New York University School Of Medicine in 1998.

NPI Number

Dr. Ahn's NPI number is 1912999533.

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Frequently Asked Questions

Where is Dr. Eugene Ahn's office located?
Dr. Eugene Ahn's office is located at 1240 S Westlake Blvd Ste 103, Westlake Village, CA, 91361.
Which hospitals is Dr. Eugene Ahn affiliated with?
Dr. Eugene Ahn is affiliated with Los Robles Regional Medical Center.
How can I make an appointment with Dr. Eugene Ahn?
You can find contact information for Dr. Eugene Ahn here on Vitals.
Does Dr. Eugene Ahn accept my insurance?
You can see the insurance plans that Dr. Eugene Ahn accepts on their Vitals profile.
What languages does Dr. Eugene Ahn speak?
Dr. Eugene Ahn speaks English and Spanish.

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