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Dr. Robert Bayer, MD

Dr. Robert Bayer, MD

DeKalb, IL

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Bayer, Hematology / Oncology Specialist in DeKalb, IL?

    Dr. Robert Bayer, MD is a Hematology / Oncology Specialist, who primarily practices in DeKalb, IL with 2 additional practice locations. He is board certified. Dr. Bayer graduated from Northwestern University The Feinberg School of Medicine and completed his residency at Loyola Univ Med Ctr, Medical Oncology; Univ Il Hosp & Cli, Internal Medicine. Dr. Bayer is fluent in English and German, and is currently seeing new patients. Dr. Bayer’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Bayer’s office at (815) 756-5255.

    What are Areas of Expertise for Dr. Bayer?

    Dr. Robert Bayer, MD is a highly-rated, board-certified Hematology / Oncology Specialist 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. Bayer empowers patients to confidently navigate their health journey, specializing in Hematologic Malignancies, Leukemia & Lymphoma, or comprehensive wellness support. Serving the DeKalb/IL community, Dr. Bayer is dedicated to enhancing lives through expert, patient-centered care.

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

    • Residency: Loyola Univ Med Ctr, Medical Oncology; Univ Il Hosp & Cli, Internal Medicine | Loyola University Medical Center Program

    • Medical School: Northwestern Uniiversity | Northwestern University The Feinberg School of Medicine

    Is Dr. Bayer board certified as a Hematology / Oncology Specialist?

    Yes, Dr. Robert Bayer, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Bayer speak?

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

    • English

    • German

    What conditions does Dr. Bayer treat?

    As a Hematology / Oncology Specialist, Dr. Bayer 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. Bayer. 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 Chemotherapy
    • Chemo treatment
    • Oncology chemotherapy
    • Cancer drug therapy

    ICD-10 Codes:

    • Z5111: Encounter for antineoplastic chemotherapy

    Also known as:

    • Iron Deficiency Anemia from Chronic Blood Loss
    • Anemia
    • Iron
    • Anemia due to iron deficiency and blood loss
    • Chronic blood loss anemia
    • Low iron anemia from bleeding

    ICD-10 Codes:

    • D500: Iron deficiency anemia secondary to blood loss (chronic)

    Also known as:

    • Multiple Myeloma
    • Plasma Cell Neoplasms (Including Multiple Myeloma) Treatment (PDQ®)
    • Active multiple myeloma
    • Untreated multiple myeloma
    • Plasma cell myeloma

    ICD-10 Codes:

    • C9000: Multiple myeloma not having achieved remission

    Also known as:

    • Chronic Lymphocytic Leukemia
    • Chronic Lymphocytic Leukemia Treatment (PDQ®)
    • CLL
    • B-cell chronic lymphocytic leukemia
    • Lymphocytic leukemia

    ICD-10 Codes:

    • C9110: Chronic lymphocytic leukemia of B-cell type not having achieved remission

    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:

    • Lung Cancer
    • Right lung cancer
    • Bronchial cancer
    • Malignant neoplasm of lung

    ICD-10 Codes:

    • C3491: Malignant neoplasm of unspecified part of right bronchus or lung

    Also known as:

    • Monoclonal Gammopathy
    • Blood Disorder
    • Plasma Cell Neoplasms (Including Multiple Myeloma) Treatment (PDQ)
    • MGUS
    • Plasma Cell Disorder
    • Gammopathy of Undetermined Significance

    ICD-10 Codes:

    • D472: Monoclonal gammopathy

    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:

    • Small B-cell Lymphoma
    • Lymphoma
    • Small Lymphocytic Lymphoma
    • SLL
    • B-cell Lymphoma

    ICD-10 Codes:

    • C8300: Small cell B-cell lymphoma, unspecified site

    Also known as:

    • Non-Hereditary Low Immunoglobulin Levels
    • Immune System and Disorder
    • Acquired Antibody Deficiency
    • Non-Genetic Immune Deficiency

    ICD-10 Codes:

    • D801: Nonfamilial hypogammaglobulinemia

    What procedures does Dr. Bayer perform?

    As a Hematology / Oncology Specialist, Dr. Bayer 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. Bayer. 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:

    • Blood Transfusion
    • Blood Transfusion and Donation
    • Blood product transfusion
    • Red blood cell transfusion
    • Plasma transfusion

    CPT Codes:

    • 36430: Transfusion, blood or blood components

    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:

    • Declotting of Vascular Access Device
    • Catheter declotting
    • Thrombolytic therapy for catheter
    • Blocked port-a-cath treatment
    • Vascular access device unblocking

    CPT Codes:

    • 36593: Declotting by thrombolytic agent of implanted vascular access device or catheter

    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:

    • Lung or Chest Biopsy
    • Liver Biopsy (Needle)
    • Biopsy
    • Percutaneous lung biopsy
    • Mediastinum core needle biopsy
    • Image-guided lung biopsy
    • Percutaneous liver biopsy
    • Needle liver sample
    • Liver tissue biopsy
    • Liver needle aspiration

    CPT Codes:

    • 32408: Core needle biopsy, lung or mediastinum, percutaneous, including imaging guidance, when performed
    • 47000: Biopsy of liver, needle; percutaneous

    Also known as:

    • Abdominal Fluid Drainage with Imaging Guidance
    • Guided Abdominal Paracentesis
    • Ascites Drainage with Ultrasound
    • Fluid Removal from Belly

    CPT Codes:

    • 49083: Abdominal paracentesis (diagnostic or therapeutic); with imaging guidance

    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:

    • 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

    Does Dr. Bayer accept my insurance?

    Dr. Bayer accepts most major insurance plans. Important: Please call our office at (815) 756-5255 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Bayer accept in DeKalb, IL?

    Dr. Bayer in DeKalb, IL accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • CVS Health (formerly Aetna)

    • Department of Veterans Affairs

    • Health Care Service Corporation (HCSC)

    • Humana

    • Medicare

    • State of Illinois

    • State of Nevada

    • State of Tennessee

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Bayer's office located?

    Dr. Robert Bayer's Primary Practice

    10 Health Services Dr

    DeKalb, IL 60115

    (815) 756-5255

    Get Directions

    Dr. Robert Bayer's Practice 2

    5 Kish Hospital Dr

    DeKalb, IL 60115

    Get Directions

    Dr. Robert Bayer's Practice 3

    304 Randall Rd

    Geneva, IL 60134

    (630) 232-0610

    Get Directions

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

    Dr. Bayer's National Provider Identifier (NPI) number is 1669527818.

    What common questions do patients ask about Dr. Bayer?

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

    What is Dr. Robert Bayer's specialty?

    Dr. Bayer is a Hematology / Oncology Specialist near DeKalb, IL. An internist doctor of osteopathy specializing in the combined treatment of hematology and oncology disorders. A doctor of osteopathy who is board eligible or certified by the American Osteopathic Board of Internal Medicine was previously able to obtain a Certificate of Special Qualifications in Hematology and Oncology; however, this certificate is no longer available. Contact Dr. Bayer to book an appointment today.

    Is this Dr. Robert Bayer affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Bayer is affiliated with Northwestern Medicine Kishwaukee Hospital, Northwestern Medicine Delnor Hospital, Northwestern Memorial Hospital, Northwestern Medicine McHenry Hospital, CGH Medical Center, Northwestern Medicine Lake Forest 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 Hematology / Oncology Specialist?

    Explore Hematology / Oncology Specialist 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 Bayer accepting new patients in DeKalb, IL?

    Yes, Dr. Robert Bayer is accepting new patients at this time.

    Does Dr. Robert Bayer offer online booking?

    Please contact Dr. Bayer's office at (815) 756-5255 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Robert Bayer?

    Please contact Dr. Bayer's office at (815) 756-5255 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Robert Bayer have?

    Dr. Robert Bayer is certified by the American Board of Internal Medicine.

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