Dr. Ahn graduated from the Seoul National University College of Medicine in 1976. He works in Lakewood, CA and specializes in Internal Medicine and Pathologist.


Christiana Care Health System
Medical School
Seoul National University College Of Medicine
Graduated 1976


Explains conditions and treatments
Takes time to answer my questions
Provides follow-up as needed
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20145 Pioneer Blvd, Lakewood, CA, 90715
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Ahn Woo Sung Office
20145 Pioneer Blvd
Lakewood, CA, 90715
"Allowed patients without masks in office. Non masked woman walked in and out of office with a female nurse/employee in powder blue scrubs. No concern for the public and laughed at others wearing masks. Unprofessional. "
  • October 1, 2020
"I was a nurse at a nursing home where he worked. He is one of the doctors who have caring heart for their patients. Very pleasant doctor. "
  • March 12, 2020


Please verify insurance information directly with your doctor’s office as it may change frequently.
  • Blue Shield CA Platinum Access+ HMO 25
  • Blue Cross CA California Care Large Group HMO
  • Blue Shield CA Bronze Full PPO 4500
  • Health Net CA CommunityCare Network HMO
  • UHC West SignatureValue Advantage HMO Value Network
  • Blue Shield CA Silver 70 PPO
  • Molina Mrktplace CA
  • Blue Shield CA Access Plus Savenet
  • BC CA California Care Small Group HMO
  • Aetna Vitalidad Plus CA con Aetna
  • Blue Cross CA Pathway X HMO
  • UHC SignatureValue Flex2
  • Aetna Basic HMO
  • Aetna HMO Deductible Plan CA only
  • Health Net CA Individual and Family PPO
  • Blue Cross CA Select Plus HMO
  • Blue Cross CA Select HMO
  • Blue Shield CA Bronze 60 PPO SHOP
  • Blue Shield CA Access Plus HMO
  • CIGNA Open Access Plus
  • Blue Shield CA Platinum Local Access + HMO 25
  • BCBS Blue Card PPO
  • CIGNA Southern CA Value
  • Blue Cross CA Vivity
  • Health Net SmartCare Large Group
  • Health Net SmartCare Small Group
  • BS CA Platinum 90 PPO
  • Blue Shield CA Local Access Plus HMO
  • Health Net CA HMO Whole Care Network
  • UHC SignatureValue Flex1
  • Health Net CA HMO SmartCare
  • Blue Cross CA Priority Select HMO
  • Aetna HMO
  • UHC SignatureValue Flex3
  • UHC West SignatureValue HMO
  • Health Net CA HMO Employer Group
  • Blue Shield CA Trio ACO HMO
  • UHC SignatureValue Focus
  • Blue Shield CA PPO
  • Health Net CA PPO
  • CIGNA LocalPlus
  • Blue Cross CA PPO Prudent Buyer Individual
  • Health Net PureCare HSP Individual and Family Plans
  • Health Net PureCare One EPO Individual & Family Plan
  • Anthem Advantage HMO
  • AWH Southern CA HMO
  • Classic
  • Health Net CA HMO
  • Health Net CA HMO Excelcare
  • Health Net CA HMO Wholecare
  • Health Net EnhancedCare PPO Small Group
  • Health Net SmartCare Network HMO Large Group
  • Health Net SmartCare Network HMO Small Group
  • UHC Signature Value Focus
  • UHC SV Flex Tier 1
  • UHC SV Flex Tier 2
  • UHC SV Flex Tier 3


20145 Pioneer Blvd
  • Accepting New Patients
  • Medicare Accepted
  • Medicaid Accepted
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
  • Accepting New Patients
  • Medicare Accepted
  • Medicaid Accepted