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Dr. Kyu Ahn, MD

Dr. Kyu Ahn, MD

Medical Oncology*

Dr. Kyu Ahn, MD is a medical oncologist in Pomona, CA. He is affiliated with Pomona Valley Hospital Medical Center. He is accepting new patients and telehealth appointments.

2.6 Star Rating
Based on 9 reviews 2.6 Star Rating (9 reviews)

Practice

1902 Royalty Dr Ste 140 Pomona, CA 91767
Telehealth available

Make an Appointment

(909) 620-0389

Hospital Highlight

Dr. Ahn is affiliated with Pomona Valley Hospital Medical Center Pomona, a highly rated hospital.

At a Glance

  • Areas of Expertise
    Dr. Ahn specializes in the areas of Internal Medicine & Medical Oncology. • See board certifications
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    Patient Safety Excellence Award™ • See hospitals
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Dr. Ahn's Reviews

Likelihood to recommend Dr. Ahn

2.6
9 ratings, 4 with a written review
5 star
33%
33%
4 star
0%
0%
3 star
11%
11%
2 star
0%
0%
1 star
56%
56%

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Terrible Doctor
Telehealth
Terrible doctor who has no caring attitude, very routinely treat patients without listening symptoms, I don't want to see this doctor ever again
What went well
No results
What could be improved
  • I didn't feel respected
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Didn't trust the provider's decisions
Helpful
Sep 01, 2024
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Rude, arrogant, he doesn’t know any I don’t believe he is a doctor. Very disappointed experience with follow up visit. He didn't explain clearly what patient’s results and medical conditions were, not a courteous and kind guy at all, lack of manner to patient. I was afraid to ask some questions about the results he seemed to be reluctant to answer any questions that patients might have. He is very unprofessional and horrible doctor. Other reviews are telling the same. I don't recommend him.
What went well
No results
What could be improved
  • Office environment
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
Helpful
Tustin, CA – Jul 06, 2017
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This Doctor Ahn is the worst doctor I have ever met and encountered, very unprofessional. I havent done talking to him about my concern and he is walking out of the door already. Not even 5 mins that stayed in the room with me. I really wanted to change doctor, but I have a pending treatment in back, so i cannot cancel the care. I don't recommend this doctor because he is very impolite, not even answering your concern and not even asking what are the care that a patient needs. Maria is Nice.
What went well
  • Office environment
  • Appointment scheduling
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
1 other person found this helpful
Helpful
AVJ in Chino Hills, CA – Jun 09, 2016
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Dr. Ahn provided me with the worst care and bedside manner that I have ever encountered. I could of changed providers at any given time but I had multiple surgeries in the pipeline which would delay all of them. It was an uphill battle to get any of my medical needs met. Ex. I told the Dr. I wanted an MRI for my back due to long term back pain. He suggests Yoga. MRI comes back L5-S1 bone on bone. I could go on and on. Maria and Gabby run the front office and they are so professional and lovely!
What went well
  • Office environment
  • Appointment scheduling
  • Staff friendliness
  • Wait times
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
3 others found this helpful
Helpful
Upland, CA – May 18, 2016
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Know Before You Go

About Me

care philosophy

I am proud to be part of the Optum family of primary care doctors, specialists, and care teams focused on providing care for people ages 65+. At Optum, my team and I help you reach your personal health goals. We focus on your total well-being while...read more

  • Medical Oncology

  • Internal Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Loma Linda University

    Fellowship Hospital, 1983

  • Lutheran Medical Center

    Residency Hospital, 1981

  • St Vincents Medical Center

    Internship Hospital, 1978
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
Internal Medicine
- 
Medical Oncology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

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Locations

Practice

Office1902 Royalty Dr Ste 140 Pomona, CA 91767
1
Office12555 Garden Grove Blvd Ste 505 Garden Grove, CA 92843
2

Affiliated Hospitals

  • Pomona Valley Hospital Medical Center

    1798 N Garey Ave
    Pomona, CA 91767
    Recipient of 6
    hospital awards

    Patient Safety Excellence Award™ (2025, 2024)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    82%
    Patients said they were given information about recovering at home

    2% lower than the national average

    75%
    Patients said that nurses always listened to them and explained things well
    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality