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Dr. Ralph Koenker, MD
Novato, CA
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Koenker, Diagnostic Radiologist in Novato, CA?
Dr. Ralph Koenker, MD is a Diagnostic Radiologist, who primarily practices in Novato, CA with 2 additional practice locations. He is board certified. Dr. Koenker completed his residency at Mass Gen Hosp, Diagnostic Radiology; Univ Ca San Diego Med Ctr, Internal Medicine. Dr. Koenker is fluent in English, and is currently seeing new patients. Dr. Koenker’s practice accepts Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Koenker’s office at (415) 290-1500.
What are Areas of Expertise for Dr. Koenker?
Dr. Ralph Koenker, MD is a highly-rated, board-certified Diagnostic Radiologist 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. Koenker empowers patients to confidently navigate their health journey, specializing in Interventional Radiology, Neuroradiology, Vascular Medicine, or comprehensive wellness support. Serving the Novato/CA community, Dr. Koenker is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Koenker go to medical school and complete their residency?
Residency: Mass Gen Hosp, Diagnostic Radiology; Univ Ca San Diego Med Ctr, Internal Medicine
Medical School: University of Ca, San Diego, Sch of Med, La Jolla Ca
Is Dr. Koenker board certified as a Diagnostic Radiologist?
Yes, Dr. Ralph Koenker, MD is board certified by the American Board of Radiology
What languages does Dr. Koenker speak?
Dr. Koenker and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Koenker treat?
As a Diagnostic Radiologist, Dr. Koenker 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. Koenker. 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:
- Mammogram for Breast Cancer Screening
- Health Screening
- Mammography
- Breast Cancer Screening (PDQ®)
- Mammograms
- Breast X-ray
- Breast Cancer Check
ICD-10 Codes:
- Z1231: Encounter for screening mammogram for malignant neoplasm of breast
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Upper body pain
ICD-10 Codes:
- R079: Chest pain, unspecified
Also known as:
- Head Injury
- Head Injuries
- Head Trauma
- Cranial Injury
- Brain Injury
ICD-10 Codes:
- S0990XA: Unspecified injury of head, initial encounter
Also known as:
- Neck Injury
- Neck Injuries and Disorder
- Neck Trauma
- Neck Damage
- Injured Neck
ICD-10 Codes:
- S199XXA: Unspecified injury of neck, initial encounter
Also known as:
- Chest Injury
- Chest Injuries and Disorder
- Thoracic Injury
- Chest Trauma
- Rib Cage Injury
ICD-10 Codes:
- S299XXA: Unspecified injury of thorax, initial encounter
Also known as:
- Cough
- Coughing
- Persistent cough
- Chronic cough
ICD-10 Codes:
- R059: Cough, unspecified
Also known as:
- Other Lung Disease
- Lung Disease
- Various lung conditions
- Unspecified lung disorder
- Miscellaneous lung problems
ICD-10 Codes:
- J984: Other disorders of lung
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:
- Acquired Kidney Cyst
- Kidney Cysts
- Acquired Cystic Kidney Disease
- Renal Cyst
- Simple Kidney Cyst
ICD-10 Codes:
- N281: Cyst of kidney, acquired
Also known as:
- Shortness of Breath
- Breathing Problems
- Difficulty breathing
- Breathlessness
- Dyspnea
ICD-10 Codes:
- R0602: Shortness of breath
Also known as:
- Joint Replacement Aftercare
- Hip Replacement
- Joint Disorder
- Knee Replacement
- Post-joint replacement care
- Joint surgery recovery
- Orthopedic aftercare
ICD-10 Codes:
- Z471: Aftercare following joint replacement surgery
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:
- Brain Ischemia
- Ischemic Stroke
- Lack of Blood Flow to Brain
- Brain Hypoxia
ICD-10 Codes:
- I6782: Cerebral ischemia
Also known as:
- Abnormal Breast Imaging Results
- Mammography
- Inconclusive mammogram
- Unclear breast scan results
- Abnormal breast scan
ICD-10 Codes:
- R928: Other abnormal and inconclusive findings on diagnostic imaging of breast
Also known as:
- Fatty Liver Disease
- Liver Disease
- Nonalcoholic Fatty Liver Disease (NAFLD) & NASH
- Nonalcoholic Fatty Liver Disease & NASH in Children
- NAFLD
- NASH
- Hepatic steatosis
ICD-10 Codes:
- K760: Fatty (change of) liver, not elsewhere classified
Also known as:
- Abdominal Pain
- Stomach Ache
- Belly Pain
- Stomach Pain
ICD-10 Codes:
- R109: Unspecified abdominal pain
Also known as:
- Low Back Pain
- Back Pain
- Lumbago
- Lower Back Ache
- Backache
ICD-10 Codes:
- M5450: Low back pain, unspecified
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:
- Other Nervous System Symptoms
- Neurologic Disease
- Unusual Neurological Symptoms
- Nerve Problems
- Brain and Nerve Issues
ICD-10 Codes:
- R29818: Other symptoms and signs involving the nervous system
Also known as:
- Pain in Left Knee
- Knee Injuries and Disorder
- Pain
- Left Knee Ache
- Left Knee Discomfort
- Sore Left Knee
ICD-10 Codes:
- M25562: Pain in left knee
What procedures does Dr. Koenker perform?
As a Diagnostic Radiologist, Dr. Koenker 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. Koenker. 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 Biopsy with Stereotactic Guidance
- Ultrasound-Guided Fine Needle Biopsy
- Lung or Chest Biopsy
- Liver Biopsy (Needle)
- Ultrasound-Guided Fine Needle Aspiration Biopsy
- Kidney Biopsy
- Muscle Needle Biopsy
- Breast Biopsy
- Biopsy
- Ultrasound
- Stereotactic Breast Biopsy
- Image-Guided Breast Biopsy
- Percutaneous Breast Biopsy
- Breast Lesion Biopsy
- 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
- Needle Biopsy with Ultrasound
- Renal biopsy
- Percutaneous kidney biopsy
- Needle kidney biopsy
- Percutaneous Muscle Biopsy
- Muscle Tissue Sample
CPT Codes:
- 19081: Biopsy, breast, with placement of breast localization device(s) (eg, clip, metallic pellet), when performed, and imaging of the biopsy specimen, when performed, percutaneous; first lesion, including stereotactic guidance
- 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
- 10006: Fine needle aspiration biopsy, including ultrasound guidance; each additional lesion (List separately in addition to code for primary procedure)
- 50200: Renal biopsy; percutaneous, by trocar or needle
- 20206: Biopsy, muscle, percutaneous needle
Also known as:
- Joint or Bursa Injection/Fluid Removal
- Arthrocentesis
- Major Joint Aspiration
- Bursa Injection
- Joint Fluid Removal
CPT Codes:
- 20610: Arthrocentesis, aspiration and/or injection, major joint or bursa (eg, shoulder, hip, knee, subacromial bursa); without ultrasound guidance
Also known as:
- PICC Line Insertion (Adult/Older Child)
- Long-Term Central Venous Catheter Insertion
- Peripherally Inserted Central Catheter
- PICC Line Placement
- Central Venous Catheter Insertion
- Tunneled central line placement
- Central venous access device insertion
- Hickman catheter insertion
- Broviac catheter insertion
CPT Codes:
- 36573: Insertion of peripherally inserted central venous catheter (PICC), without subcutaneous port or pump, including all imaging guidance, image documentation, and all associated radiological supervision and interpretation required to perform the insertion; 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:
- 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:
- 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:
- Removal of Tunneled Central Venous Catheter
- Central Line Removal
- Tunneled Catheter Extraction
- Venous Access Device Removal
CPT Codes:
- 36589: Removal of tunneled central venous catheter, without subcutaneous port or pump
Also known as:
- Lumbar Transforaminal Epidural Injection
- Lumbar or Sacral Epidural Injection with Imaging
- TFESI (Lumbar)
- Nerve Root Block (Lumbar)
- Lower Back Nerve Injection with Imaging
- Epidural Steroid Injection
- Caudal Epidural Injection
- Spinal Nerve Block
- Pain Management Injection
CPT Codes:
- 64483: Injection(s), anesthetic agent(s) and/or steroid; transforaminal epidural, with imaging guidance (fluoroscopy or CT), lumbar or sacral, single level
- 62323: Injection(s), of diagnostic or therapeutic substance(s) (eg, anesthetic, antispasmodic, opioid, steroid, other solution), not including neurolytic substances, including needle or catheter placement, interlaminar epidural or subarachnoid, lumbar or sacral (caudal); with imaging guidance (ie, fluoroscopy or CT)
Also known as:
- Lumbar or Sacral Epidural Injection (Guided)
- Transforaminal Epidural Injection
- Spinal Nerve Block
- Lower Back Pain Injection with Guidance
CPT Codes:
- 64484: Injection(s), anesthetic agent(s) and/or steroid; transforaminal epidural, with imaging guidance (fluoroscopy or CT), lumbar or sacral, each additional level (List separately in addition to code for primary procedure)
Also known as:
- Abdominal Fluid Drainage with Imaging Guidance
- Image-Guided Abdominal Fluid Drainage
- Guided Abdominal Paracentesis
- Ascites Drainage with Ultrasound
- Fluid Removal from Belly
- Percutaneous fluid drainage
- Abscess drainage with imaging
- Peritoneal fluid 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
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
Also known as:
- Stomach or Colon Feeding Tube Replacement
- Gastrostomy Tube Change
- Cecostomy Tube Replacement
- Percutaneous Feeding Tube Exchange
CPT Codes:
- 49450: Replacement of gastrostomy or cecostomy (or other colonic) tube, percutaneous, under fluoroscopic guidance including contrast injection(s), image documentation and report
Also known as:
- Percutaneous Gastrostomy Tube Insertion
- PEG Tube Placement
- G-Tube Insertion
- Feeding Tube Placement (Stomach)
CPT Codes:
- 49440: Insertion of gastrostomy tube, percutaneous, under fluoroscopic guidance including contrast injection(s), image documentation and report
Also known as:
- Contrast Injection for Abscess/Cyst Assessment
- Drainage Catheter Contrast Study
- Abscess Imaging
- Cystogram via Drain
CPT Codes:
- 49424: Contrast injection for assessment of abscess or cyst via previously placed drainage catheter or tube (separate procedure)
Also known as:
- Ultrasound-Guided Breast Biopsy
- Additional Breast Biopsy with Ultrasound Guidance
- Breast Biopsy
- Percutaneous Breast Biopsy
- Breast Tissue Sample
- Breast Lesion Biopsy with Clip
- Percutaneous Breast Biopsy (Additional Lesion)
- Breast Tissue Sample (Multiple Sites)
CPT Codes:
- 19083: Biopsy, breast, with placement of breast localization device(s) (eg, clip, metallic pellet), when performed, and imaging of the biopsy specimen, when performed, percutaneous; first lesion, including ultrasound guidance
- 19084: Biopsy, breast, with placement of breast localization device(s) (eg, clip, metallic pellet), when performed, and imaging of the biopsy specimen, when performed, percutaneous; each additional lesion, including ultrasound guidance (List separately in addition to code for primary procedure)
Also known as:
- Image-Guided Fluid Drainage
- Abscess drainage
- Hematoma drainage
- Cyst drainage
- Percutaneous fluid aspiration
CPT Codes:
- 10030: Image-guided fluid collection drainage by catheter (eg, abscess, hematoma, seroma, lymphocele, cyst), soft tissue (eg, extremity, abdominal wall, neck), percutaneous
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:
- 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:
- Simple Cystostomy Tube Change
- Bladder Tube Replacement
- Suprapubic Catheter Change
- Cystostomy Maintenance
CPT Codes:
- 51705: Change of cystostomy tube; simple
Does Dr. Koenker accept my insurance?
Dr. Koenker accepts most major insurance plans. Important: Please call our office at (415) 290-1500 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Koenker accept in Novato, CA?
Dr. Koenker in Novato, 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
City of Hartford
Crown Cork and Seal Company
CVS Health (formerly Aetna)
Hill Physicians Medical Group
Medicare
Other Provider Networks
Partnership Health Plan
UnitedHealthcare
View All Insurances
Where is Dr. Koenker's office located?
What is Dr. Koenker's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Koenker's National Provider Identifier (NPI) number is 1891734265.
What common questions do patients ask about Dr. Koenker?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Koenker
What is Dr. Ralph Koenker's specialty?
Dr. Koenker is a Diagnostic Radiologist near Novato, 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. Koenker to book an appointment today.
Is this Dr. Ralph Koenker affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Koenker is affiliated with MarinHealth Medical Center, Novato Community Hospital 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 Ralph Koenker accepting new patients in Novato, CA?
Yes, Dr. Ralph Koenker is accepting new patients at this time.
Does Dr. Ralph Koenker offer online booking?
Please contact Dr. Koenker's office at (415) 290-1500 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Ralph Koenker?
Please contact Dr. Koenker's office at (415) 290-1500 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Ralph Koenker have?
Dr. Ralph Koenker is certified by the American Board of Radiology.
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