RA
36 Years of Experience
Accepting patients
Who is Dr. Ash, Radiation Oncologist in Orange, CA?
Dr. Robert Ash, MD is a Radiation Oncologist, who primarily practices in Orange, CA with 2 additional practice locations. He has been practicing for over 36 years and is board certified. Dr. Ash is fluent in English and Spanish, and is currently seeing new patients. Dr. Ash’s practice accepts Medicaid, Medicare, UnitedHealthcare, Aetna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ash’s office at (714) 734-6250.
What are Areas of Expertise for Dr. Ash?
Dr. Robert Ash, MD is a highly-rated, board-certified Radiation Oncologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Ash empowers patients to confidently navigate their health journey, specializing in Brachytherapy, Genitourinary Cancer, Stereotactic Radiosurgery, Thoracic Cancers, or comprehensive wellness support. Serving the Orange/CA community, Dr. Ash is dedicated to enhancing lives through expert, patient-centered care.
What languages does Dr. Ash speak?
Dr. Ash and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Ash treat?
As a Radiation Oncologist, Dr. Ash 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. Ash. 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:
- 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:
- 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:
- Cancer Follow-up Exam
- Secondary Bone Cancer
- Secondary Brain Cancer
- Cancer
- Bone Cancer
- Brain Tumor
- Post-cancer treatment checkup
- Malignancy surveillance
- Oncology follow-up
- Metastatic bone cancer
- Cancer spread to bone
- Bone metastases
- Metastatic brain cancer
- Brain metastases
- Cancer spread to brain
ICD-10 Codes:
- Z08: Encounter for follow-up examination after completed treatment for malignant neoplasm
- C7951: Secondary malignant neoplasm of bone
- C7931: Secondary malignant neoplasm of brain
Also known as:
- Breast Cancer
- Upper-Outer Quadrant Right Female Breast Cancer
- Early Breast Cancer of the Right Breast
- Lower-Outer Quadrant Left Female Breast Cancer
- Upper-Inner Quadrant Right Female Breast Cancer
- Early Breast Cancer of the Left Breast
- Female Breast Cancer
- Malignant Breast Tumor
- Breast Carcinoma
- 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
- Left female breast cancer lower-outer
- Lower-outer left female breast tumor
- Malignant growth in lower-outer left female breast
- Right female breast cancer upper-inner
- Upper-inner right female breast tumor
- Malignant growth in upper-inner right female breast
- Intraductal carcinoma in situ left breast
- Precancerous cells left breast
- Non-invasive breast cancer left breast
- DCIS left breast
ICD-10 Codes:
- C50412: Malignant neoplasm of upper-outer quadrant of left female breast
- C50411: Malignant neoplasm of upper-outer quadrant of right female breast
- D0511: Intraductal carcinoma in situ of right breast
- C50512: Malignant neoplasm of lower-outer quadrant of left female breast
- C50211: Malignant neoplasm of upper-inner quadrant of right female breast
- D0512: Intraductal carcinoma in situ of left breast
Also known as:
- Basal Cell Skin Cancer of the Nose
- Basal Cell Skin Cancer of the Face
- Skin Cancer
- Skin Cancer Treatment (PDQ)
- Basal Cell Carcinoma (BCC)
- Rodent Ulcer
- BCC
- Basal Cell Carcinoma
ICD-10 Codes:
- C44311: Basal cell carcinoma of skin of nose
- C44319: Basal cell carcinoma of skin of other parts of face
Also known as:
- Lung Cancer
- Right upper lobe lung cancer
- Bronchial cancer
- Malignant neoplasm of lung
- Right lower lobe lung cancer
- Left Lung Cancer
- Upper Lobe Lung Cancer
- Bronchial Cancer
ICD-10 Codes:
- C3411: Malignant neoplasm of upper lobe, right bronchus or lung
- C3431: Malignant neoplasm of lower lobe, right bronchus or lung
- C3412: Malignant neoplasm of upper lobe, left bronchus or lung
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:
- Squamous Cell Skin Cancer of the Face
- Skin Cancer
- Skin Cancer Treatment (PDQ®)
- Squamous Cell Carcinoma of Face
- Facial SCC
- Cutaneous Squamous Cell Carcinoma of Face
- Face Skin Malignancy
ICD-10 Codes:
- C44329: Squamous cell carcinoma of skin of other parts of face
Also known as:
- Anal Cancer
- Colorectal Cancer
- Anal Cancer Treatment (PDQ)
- Cancer of the anus and rectum
- Malignant neoplasm of anus
- Rectal and anal cancer
ICD-10 Codes:
- C218: Malignant neoplasm of overlapping sites of rectum, anus and anal canal
Also known as:
- Throat Cancer
- Tonsil Cancer
- Oropharyngeal Cancer
- Malignant Neoplasm of Tonsil
ICD-10 Codes:
- C098: Malignant neoplasm of overlapping sites of tonsil
Which procedures does Dr. Ash perform as a Radiation Oncologist?
As a Radiation Oncologist, procedures performed by a Dr. Robert Ash 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. Ash's office.
Does Dr. Ash accept my insurance?
Dr. Ash accepts most major insurance plans. Important: Please call our office at (714) 734-6250 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Ash accept in Orange, CA?
Dr. Ash in Orange, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Shield of California
CalOptima
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Health Care Service Corporation (HCSC)
Medicare
Scan Health Plan
St. Joseph Health System (CA)
UnitedHealthcare
View All Insurances
Where is Dr. Ash's office located?
What is Dr. Ash's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Ash's National Provider Identifier (NPI) number is 1326238650.
What common questions do patients ask about Dr. Ash?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Ash
What is Dr. Robert Ash's specialty?
Dr. Ash is a Radiation Oncologist near Orange, CA. A radiological oncologist specializes in the therapeutic applications of radiant energy and its modifiers. They focus on the study and management of diseases, particularly malignant tumors. Contact Dr. Ash to book an appointment today.
Is this Dr. Robert Ash affiliated with a ranked Castle Connolly Top Hospital?
No, Ash is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Providence St. Joseph Hospital Orange. Castle Connolly Top Hospitals 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 Radiation Oncologist?
Explore Radiation Oncologist 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 Robert Ash accepting new patients in Orange, CA?
Yes, Dr. Robert Ash is accepting new patients at this time.
Does Dr. Robert Ash offer online booking?
Please contact Dr. Ash's office at (714) 734-6250 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Robert Ash?
Please contact Dr. Ash's office at (714) 734-6250 for information regarding telehealth appointment availability or for scheduling assistance.
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