Dr. Kathy Joo, MD

Dr. Kathy Joo, MD

Endocrinology, Diabetes & Metabolism  ·  
Female  ·  
Age 52
Dr. Kathy Joo, MD is an endocrinology, diabetes & metabolism specialist in Murrieta, CA and has been practicing for 22 years. She graduated from Kyungpuk National University in 1996 and specializes in endocrinology, diabetes & metabolism and internal medicine.

40700 California Oaks Rd Ste 208

Murrieta, CA 92562

Contact Information

(951) 894-6780

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of California
  • Blue Shield of California
  • Cigna
  • First Health (Coventry Health Care)

*Please verify this information when scheduling an appointment.

Learn about Dr. Joo

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Joo performs your care needs compared to other doctors.

Diabetes With Renal Manifestations
very high
more than 97% of peers
Diabetes Type 2
more than 87% of peers
Lipid Disorders
more than 75% of peers

Dr. Joo's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

2  Specialties

  • Endocrinology, Diabetes & Metabolism
  • Internal Medicine

1  Board Certifications

  • Diabetes, Metabolism & Endocrinology
    Accredited by: American Board of Internal Medicine*

22  Conditions Treated

Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Kyungpuk National University
    Medical School | Graduated 1996

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Joo has no media or publications listed.

Languages Spoken

  • English
  • Korean

Memberships & Professional Affiliations

Dr. Joo does not have any memberships or affiliations listed. If you are Dr. Joo and would like to add memberships or affiliations, please update your profile.

Dr. Joo's Reviews

Likelihood of recommending Dr. Joo to family and friends
38 total reviews (6 have comments)

Likelihood to Recommend (38)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Joo's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    10 to 15 minutes

Patient Comments (6)

She seemed very knowledgeable and nice on my first visit. Thereafter, I was treated as if I was wasting her time. Having an adrenal gland deficiency and unable to take the medication, she was actually angry that I made an appointment. Watch out for their 24 hr cancellation policy. They are...more
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My experience with Dr. Kathy was really positive even though I was worried because of the reviews that I saw on here. She is a very knowledgeable doctor in her field. My appointment was at 10AM but I was told to arrive 30 minutes early to deal with my paperwork. I saw her at 1010AM. She was very...more
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I have seen Dr. Joo three times over the last several years for thyroid nodules. I have had nothing but a positive experience with her. She is thorough and prepared. She actually reviews my chart, history and tests before coming into the exam room to see me. I am tired of doctors who don't...more
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Nice at first, then it goes downhill. When I needed her she was very unfriendly. She did a 360 on me I left her office never to return. Beware of this doctor
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DR Joo is a very good endocrinologist. She manages my insulin and watches my blood results. If she hadn't done a good job, we wouldn't know that my liver numbers were over three times what they were supposed to be. I will say that she said her staff told me how much insulin to use, and i'm pretty...more
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