JR
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Ryoo, Therapeutic Radiologist in Ontario, CA?
Dr. Joan Ryoo, MD is a Therapeutic Radiologist, who primarily practices in Ontario, CA with 2 additional practice locations. Dr. Ryoo is fluent in English, and is currently seeing new patients. Dr. Ryoo’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ryoo’s office at (323) 783-2841.
What languages does Dr. Ryoo speak?
Dr. Ryoo and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Ryoo treat?
As a Therapeutic Radiologist, Dr. Ryoo diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Ryoo. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Breast Cancer
- Early Breast Cancer of the Left Breast
- Upper-Outer Quadrant Right Female Breast Cancer
- Early Breast Cancer of the Right Breast
- Mammary cancer
- Breast carcinoma
- Breast tumor
- Intraductal carcinoma in situ left breast
- Precancerous cells left breast
- Non-invasive breast cancer left breast
- DCIS left breast
- Right female breast cancer upper-outer
- Upper-outer right female breast tumor
- Malignant growth in upper-outer right female breast
- Intraductal carcinoma in situ right breast
- Precancerous cells right breast
- Non-invasive breast cancer right breast
- DCIS right breast
ICD-10 Codes:
- C50912: Malignant neoplasm of unspecified site of left female breast
- C50911: Malignant neoplasm of unspecified site of right female breast
- D0512: Intraductal carcinoma in situ of left breast
- C50411: Malignant neoplasm of upper-outer quadrant of right female breast
- D0511: Intraductal carcinoma in situ of right breast
Also known as:
- Prostate Cancer
- Prostate Cancer Treatment (PDQ®)
- Prostatic Carcinoma
- Prostate Gland Cancer
- Malignant Prostate Tumor
ICD-10 Codes:
- C61: Malignant neoplasm of prostate
Also known as:
- Colorectal Cancer
- Rectal cancer
- Colon cancer
- Bowel cancer
- Malignant neoplasm of rectum
ICD-10 Codes:
- C20: Malignant neoplasm of rectum
Also known as:
- Secondary Bone Cancer
- Secondary Brain Cancer
- Bone Cancer
- Brain Tumor
- Metastatic bone cancer
- Cancer spread to bone
- Bone metastases
- Metastatic brain cancer
- Brain metastases
- Cancer spread to brain
ICD-10 Codes:
- C7951: Secondary malignant neoplasm of bone
- C7931: Secondary malignant neoplasm of brain
Also known as:
- History of Radiation Therapy
- Radiation Therapy
- Past Radiation Treatment
- Previous Radiotherapy
- History of Radiotherapy
ICD-10 Codes:
- Z923: Personal history of irradiation
Also known as:
- Anal Cancer
- Anal Cancer Treatment (PDQ)
- Anal Cancer Treatment (PDQ®)
- Colorectal Cancer
- Cancer of the anal canal
- Malignant neoplasm of anal canal
- Anorectal cancer
- Anus Cancer
- Anal Carcinoma
- Cancer of the anus and rectum
- Malignant neoplasm of anus
- Rectal and anal cancer
ICD-10 Codes:
- C211: Malignant neoplasm of anal canal
- C210: Malignant neoplasm of anus, unspecified
- C218: Malignant neoplasm of overlapping sites of rectum, anus and anal canal
Also known as:
- Endometrial Cancer
- Uterine Cancer
- Endometrial Cancer Treatment (PDQ®)
- Malignant Endometrial Tumor
- Endometrial Carcinoma
- Cancer of the Endometrium
ICD-10 Codes:
- C541: Malignant neoplasm of endometrium
Also known as:
- Cancer Radiation Therapy
- Radiation Therapy
- Radiation Therapy to Treat Cancer
- Radiation treatment for cancer
- Oncology radiation
- Radiotherapy
ICD-10 Codes:
- Z510: Encounter for antineoplastic radiation therapy
Also known as:
- History of rectal or anal cancer
- Colorectal Cancer
- Past rectal cancer
- Anal cancer survivor
- Previous rectosigmoid malignancy
ICD-10 Codes:
- Z85048: Personal history of other malignant neoplasm of rectum, rectosigmoid junction, and anus
Also known as:
- Cervical Cancer
- Malignant Cervical Tumor
- Cervical Carcinoma
- Cancer of the Cervix
ICD-10 Codes:
- C539: Malignant neoplasm of cervix uteri, unspecified
Also known as:
- Brain Tumor
- Brain Cancer
- Cerebral Tumor
- Intracranial Tumor
- Malignant Brain Tumor
ICD-10 Codes:
- C719: Malignant neoplasm of brain, unspecified
Also known as:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
Also known as:
- Oral Cancer
- Tongue Cancer
- Mouth Cancer
- Malignant Neoplasm of Tongue
ICD-10 Codes:
- C029: Malignant neoplasm of tongue, unspecified
Which procedures does Dr. Ryoo perform as a Therapeutic Radiologist?
As a Therapeutic Radiologist, procedures performed by Dr. Joan Ryoo may include:
- Abdominal Aortic Aneurysm (AAA) Screening
- Abdominal Imaging
- Abdominal Radiology Consultation
- Angiography
- Arthrography
- Barium Swallow
- Bone Biopsy
- Bone Density Measurement / DXA Scan
For detailed information, please contact Dr. Ryoo's office.
Does Dr. Ryoo accept my insurance?
Dr. Ryoo accepts most major insurance plans. Important: Please call our office at (323) 783-2841 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Ryoo accept in Ontario, CA?
Dr. Ryoo in Ontario, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Commercial
All Other Third Party
Centene
Cooperative Benefit Group
Crown Cork and Seal Company
First Medical Health Plan
Humana
Medicare
OptumRx
Other Health Care Provider
View All Insurances
Where is Dr. Ryoo's office located?
What is Dr. Ryoo's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Ryoo's National Provider Identifier (NPI) number is 1699854596.
What common questions do patients ask about Dr. Ryoo?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Ryoo
What is Dr. Joan Ryoo's specialty?
Dr. Ryoo is a Therapeutic Radiologist near Ontario, CA. Therapeutic radiology, also known as radiation oncology, is a medical specialty that utilizes high-energy radiation to treat cancer and other diseases. This field focuses on delivering precise doses of radiation to target tumors while minimizing exposure to surrounding healthy tissues. Therapeutic radiologists work collaboratively with other healthcare professionals to develop treatment plans, manage patient care, and monitor treatment outcomes. Contact Dr. Ryoo to book an appointment today.
Is this Dr. Joan Ryoo affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Ryoo is affiliated with Kaiser Permanente Panorama City Medical Center, Kaiser Permanente West Los Angeles Medical Center, Kaiser Permanente Baldwin Park Medical Center, Kaiser Permanente Los Angeles Medical Center, Kaiser Permanente South Bay Medical Center which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Therapeutic Radiologist?
Explore Therapeutic Radiologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Joan Ryoo accepting new patients in Ontario, CA?
Yes, Dr. Joan Ryoo is accepting new patients at this time.
Does Dr. Joan Ryoo offer online booking?
Please contact Dr. Ryoo's office at (323) 783-2841 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Joan Ryoo?
Please contact Dr. Ryoo's office at (323) 783-2841 for information regarding telehealth appointment availability or for scheduling assistance.
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