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Dr. Jon Loo, MD

Rancho Mission Viejo, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Loo, Diagnostic Radiologist in Rancho Mission Viejo, CA?

    Dr. Jon Loo, MD is a Diagnostic Radiologist, who primarily practices in Rancho Mission Viejo, CA with 2 additional practice locations. Dr. Loo is fluent in English, and is currently seeing new patients. Dr. Loo’s practice accepts Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Loo’s office.

    Where did Dr. Loo go to medical school and complete their residency?

    • Medical School: Medical College of Wisconsin

    What languages does Dr. Loo speak?

    Dr. Loo and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Loo treat?

    As a Diagnostic Radiologist, Dr. Loo 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. Loo. 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:

    • Chest Pain
    • Chest discomfort
    • Thoracic pain
    • Upper body pain

    ICD-10 Codes:

    • R079: Chest pain, unspecified

    Also known as:

    • Shortness of Breath
    • Breathing Problems
    • Difficulty breathing
    • Breathlessness
    • Dyspnea

    ICD-10 Codes:

    • R0602: Shortness of breath

    Also known as:

    • Abdominal Pain
    • Stomach Ache
    • Belly Pain
    • Stomach Pain

    ICD-10 Codes:

    • R109: Unspecified abdominal pain

    Also known as:

    • Localized Swelling
    • Edema
    • Localized Edema
    • Fluid Retention
    • Swelling in one area

    ICD-10 Codes:

    • R600: Localized edema

    Also known as:

    • Pleural Effusion
    • Pleural Disorder
    • Fluid in lungs
    • Water on the lung
    • Fluid around lungs

    ICD-10 Codes:

    • J90: Pleural effusion, not elsewhere classified

    Also known as:

    • Headache
    • Head pain
    • Cephalalgia
    • Tension headache

    ICD-10 Codes:

    • R519: Headache, unspecified

    Also known as:

    • Ischemic Stroke
    • Brain Attack
    • Cerebral Infarction
    • Brain Ischemia

    ICD-10 Codes:

    • I639: Cerebral infarction, unspecified

    Also known as:

    • Muscle Weakness
    • Muscle Disorder
    • Loss of strength
    • Fatigue
    • Muscle fatigue

    ICD-10 Codes:

    • R531: Weakness

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    Also known as:

    • Fluid in Abdomen
    • Liver Disease
    • Ascites
    • Abdominal fluid buildup
    • Peritoneal fluid

    ICD-10 Codes:

    • R188: Other ascites

    Also known as:

    • Unspecified Injury
    • General injury
    • Injury, unknown type
    • Trauma

    ICD-10 Codes:

    • T1490XA: Injury, unspecified, initial encounter

    Also known as:

    • Osteoporosis Screening
    • Health Screening
    • Bone Density Test
    • Bone Health Screening
    • DEXA Scan

    ICD-10 Codes:

    • Z13820: Encounter for screening for osteoporosis

    Also known as:

    • Other Abnormal Findings on Lung Scan
    • Unusual Lung Scan Results
    • Atypical Lung Imaging
    • Nonspecific Lung Abnormality

    ICD-10 Codes:

    • R918: Other nonspecific abnormal finding of lung field

    Also known as:

    • Vascular Access Device Management
    • Vascular Access Care
    • Port Management
    • Catheter Care

    ICD-10 Codes:

    • Z452: Encounter for adjustment and management of vascular access device

    Also known as:

    • Catheter Management
    • Catheter adjustment
    • Catheter care
    • Non-vascular catheter maintenance

    ICD-10 Codes:

    • Z4682: Encounter for fitting and adjustment of non-vascular catheter

    Also known as:

    • Other Pre-Procedure Examination
    • Various pre-op checks
    • Miscellaneous pre-surgery exams
    • Other pre-treatment assessments

    ICD-10 Codes:

    • Z01818: Encounter for other preprocedural examination

    Also known as:

    • Pulmonary Embolism
    • Blood clot in lung
    • Lung embolism
    • PE

    ICD-10 Codes:

    • I2699: Other pulmonary embolism without acute cor pulmonale

    Also known as:

    • Changes in Mental State
    • Mental Disorder
    • Confusion
    • Disorientation
    • Changes in awareness

    ICD-10 Codes:

    • R4182: Altered mental status, unspecified

    Also known as:

    • Gallstones
    • Cholelithiasis
    • Gallbladder stones
    • Biliary calculi

    ICD-10 Codes:

    • K8020: Calculus of gallbladder without cholecystitis without obstruction

    Also known as:

    • Neck Pain
    • Neck Injuries and Disorder
    • Cervical Pain
    • Sore Neck
    • Neck Ache

    ICD-10 Codes:

    • M542: Cervicalgia

    What procedures does Dr. Loo perform?

    As a Diagnostic Radiologist, Dr. Loo performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Loo. 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:

    • Inserting a Long-Term IV Port (Central Line)
    • Tunneled central venous catheter insertion
    • Subcutaneous port placement
    • Central line with port

    CPT Codes:

    • 36561: Insertion of tunneled centrally inserted central venous access device, with subcutaneous port; age 5 years or older

    Also known as:

    • Central Venous Catheter Insertion (Non-Tunneled)
    • Long-Term Central Venous Catheter Insertion
    • Central Line Placement
    • CVC Insertion
    • Temporary Central Line
    • IV Access Catheter
    • Tunneled central line placement
    • Central venous access device insertion
    • Hickman catheter insertion
    • Broviac catheter insertion

    CPT Codes:

    • 36556: Insertion of non-tunneled centrally inserted central venous catheter; age 5 years or older
    • 36558: Insertion of tunneled centrally inserted central venous catheter, without subcutaneous port or pump; age 5 years or older

    Also known as:

    • Tunneled Central Venous Catheter Removal
    • Central Line Explant
    • Port-a-Cath Removal
    • Implantable Venous Access Device Removal
    • Tunneled Catheter Extraction

    CPT Codes:

    • 36590: Removal of tunneled central venous access device, with subcutaneous port or pump, central or peripheral insertion

    Also known as:

    • Vena Cava Filter Removal
    • IVC Filter Retrieval
    • Endovascular Filter Removal
    • Blood Clot Filter Removal

    CPT Codes:

    • 37193: Retrieval (removal) of intravascular vena cava filter, endovascular approach including vascular access, vessel selection, and radiological supervision and interpretation, intraprocedural roadmapping, and imaging guidance (ultrasound and fluoroscopy), when performed

    Also known as:

    • Ultrasound-Guided Fine Needle Biopsy
    • Lung or Chest Biopsy
    • Liver Biopsy (Needle)
    • Muscle Needle Biopsy
    • Kidney Biopsy
    • Biopsy
    • Ultrasound
    • FNA Biopsy with Ultrasound
    • Image-Guided Biopsy
    • Fine Needle Aspiration
    • First Lesion Biopsy
    • Percutaneous lung biopsy
    • Mediastinum core needle biopsy
    • Image-guided lung biopsy
    • Percutaneous liver biopsy
    • Needle liver sample
    • Liver tissue biopsy
    • Liver needle aspiration
    • Percutaneous Muscle Biopsy
    • Muscle Tissue Sample
    • Renal biopsy
    • Percutaneous kidney biopsy
    • Needle kidney biopsy

    CPT Codes:

    • 10005: Fine needle aspiration biopsy, including ultrasound guidance; first lesion
    • 32408: Core needle biopsy, lung or mediastinum, percutaneous, including imaging guidance, when performed
    • 47000: Biopsy of liver, needle; percutaneous
    • 20206: Biopsy, muscle, percutaneous needle
    • 50200: Renal biopsy; percutaneous, by trocar or needle

    Also known as:

    • Exchange of Kidney Drainage Catheter
    • Nephrostomy tube exchange
    • Percutaneous nephrostomy catheter change
    • Kidney drainage tube replacement
    • Nephrostogram with catheter exchange

    CPT Codes:

    • 50435: Exchange nephrostomy catheter, percutaneous, including diagnostic nephrostogram and/or ureterogram when performed, imaging guidance (eg, ultrasound and/or fluoroscopy) and all associated radiological supervision and interpretation

    Also known as:

    • Abdominal Fluid Drainage with Imaging Guidance
    • Image-Guided Abdominal Fluid Drainage
    • Draining a Lump or Collection of Fluid
    • Guided Abdominal Paracentesis
    • Ascites Drainage with Ultrasound
    • Fluid Removal from Belly
    • Percutaneous fluid drainage
    • Abscess drainage with imaging
    • Peritoneal fluid aspiration
    • Abscess Aspiration
    • Cyst Drainage
    • Hematoma Puncture
    • Bulla Aspiration

    CPT Codes:

    • 49083: Abdominal paracentesis (diagnostic or therapeutic); with imaging guidance
    • 49406: Image-guided fluid collection drainage by catheter (eg, abscess, hematoma, seroma, lymphocele, cyst); peritoneal or retroperitoneal, percutaneous
    • 10160: Puncture aspiration of abscess, hematoma, bulla, or cyst

    Also known as:

    • Fluid Removal from Lung Area with Imaging Guidance
    • Thoracentesis
    • Pleural Fluid Aspiration
    • Lung Tap
    • Fluid Drainage from Chest

    CPT Codes:

    • 32555: Thoracentesis, needle or catheter, aspiration of the pleural space; with imaging guidance

    Also known as:

    • Lung Fluid Drainage with Catheter
    • Percutaneous Pleural Drainage
    • Chest Tube Insertion
    • Imaging-Guided Pleural Drain

    CPT Codes:

    • 32557: Pleural drainage, percutaneous, with insertion of indwelling catheter; with imaging guidance

    Also known as:

    • Bone Marrow Biopsy and Aspiration
    • Biopsy
    • Bone Marrow Tests
    • Bone Marrow Exam
    • Bone Marrow Sample Collection
    • Diagnostic Bone Marrow Procedure

    CPT Codes:

    • 38222: Diagnostic bone marrow; biopsy(ies) and aspiration(s)

    Also known as:

    • Superficial Lymph Node Needle Biopsy
    • Biopsy
    • Needle Lymph Node Biopsy
    • Cervical Lymph Node Biopsy
    • Inguinal Lymph Node Biopsy
    • Axillary Lymph Node Biopsy

    CPT Codes:

    • 38505: Biopsy or excision of lymph node(s); by needle, superficial (eg, cervical, inguinal, axillary)

    Also known as:

    • Needle Biopsy of Abdominal or Pelvic Mass
    • Percutaneous Abdominal Biopsy
    • Retroperitoneal Mass Biopsy
    • Abdominal Needle Biopsy

    CPT Codes:

    • 49180: Biopsy, abdominal or retroperitoneal mass, percutaneous needle

    Does Dr. Loo accept my insurance?

    Dr. Loo accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Loo accept in Rancho Mission Viejo, CA?

    Dr. Loo in Rancho Mission Viejo, 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

    • Centene

    • Crown Cork and Seal Company

    • CVS Health (formerly Aetna)

    • Medicare

    • OptumRx

    • Other Health Care Provider

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Loo's office located?

    Dr. Jon Loo's Primary Practice

    30492 Gateway Pl Ste 110

    Rancho Mission Viejo, CA 92694

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    Dr. Jon Loo's Practice 2

    9920 Talbert Ave

    Fountain Valley, CA 92708

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    Dr. Jon Loo's Practice 3

    24451 Health Center Dr

    Laguna Hills, CA 92653

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    What is Dr. Loo's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Loo's National Provider Identifier (NPI) number is 1871755017.

    What common questions do patients ask about Dr. Loo?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Loo

    What is Dr. Jon Loo's specialty?

    Dr. Loo is a Diagnostic Radiologist near Rancho Mission Viejo, CA. A radiologist is a medical doctor who specializes in using imaging technologies to diagnose, manage, and treat various medical conditions. Radiologists typically focus on Diagnostic Radiology, Interventional Radiology, or Radiation Oncology, and may also obtain certifications in a range of subspecialties, such as neuroradiology, musculoskeletal radiology, or pediatric radiology. Additionally, board certifications are available in Medical Physics, which ensures the safe and effective use of radiation in imaging and treatment. Radiologists collaborate with other healthcare professionals to interpret imaging results and help guide patient care decisions. Contact Dr. Loo to book an appointment today.

    Is this Dr. Jon Loo affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Loo is affiliated with Kaiser Permanente Orange County - Anaheim Medical Center, UCI Medical Center, Providence Mission Hospital Mission Viejo, UCI Health - Fountain Valley, Adventist Health Glendale, Orange County Global 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 Diagnostic Radiologist?

    Explore Diagnostic 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 Jon Loo accepting new patients in Rancho Mission Viejo, CA?

    Yes, Dr. Jon Loo is accepting new patients at this time.

    Does Dr. Jon Loo offer online booking?

    Please contact Dr. Loo's office for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Jon Loo?

    Please contact Dr. Loo's office for information regarding telehealth appointment availability or for scheduling assistance.

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