Affiliated with a Castle Connolly Top Hospital
Who is Dr. Fesler, Hematology / Oncology Specialist in Saint Louis, MO?
Dr. Mark Fesler, MD is a Hematology / Oncology Specialist, who primarily practices in Saint Louis, MO with 2 additional practice locations. He is board certified. Dr. Fesler is fluent in English, and is currently seeing new patients. Dr. Fesler’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Fesler’s office at (314) 577-6056.
What are Areas of Expertise for Dr. Fesler?
Dr. Mark Fesler, MD is a highly-rated, board-certified Hematology / Oncology Specialist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Fesler empowers patients to confidently navigate their health journey, specializing in Anemia-Aplastic, Cancer Prevention, Cancer Risk Assessment, Hematology, Hodgkin's Lymphoma, Multiple Myeloma, Myelodysplastic Syndromes, Myeloproliferative Disorders, Testicular Cancer, and comprehensive wellness support. Serving the Saint Louis, MO community, Dr. Fesler is dedicated to enhancing lives through expert, patient-centered care.
Is Dr. Fesler board certified as a Hematology / Oncology Specialist?
Yes, Dr. Mark Fesler, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Fesler speak?
Dr. Fesler and their clinical team can communicate with patients in the following languages:
English
What conditions does a Hematology / Oncology Specialist like Dr. Fesler typically treat?
As a Hematology / Oncology Specialist, Dr. Fesler 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. Fesler. 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. Learn more about our claims-based healthcare methodology here.
Also known as:
- Cancer Chemotherapy
- Cancer Immunotherapy
- Chemo treatment
- Oncology chemotherapy
- Cancer drug therapy
- Oncology immunotherapy
- Immune therapy for cancer
ICD-10 Codes:
- Z5111: Encounter for antineoplastic chemotherapy
- Z5112: Encounter for antineoplastic immunotherapy
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:
- Diffuse Large B-cell Lymphoma
- Lymphoma
- DLBCL
- Aggressive B-cell Lymphoma
- Diffuse B-cell Lymphoma
ICD-10 Codes:
- C8330: Diffuse large B-cell lymphoma, unspecified site
Also known as:
- Multiple Myeloma
- Multiple Myeloma in Remission
- Plasma Cell Neoplasms (Including Multiple Myeloma) Treatment (PDQ®)
- Plasma Cell Neoplasms (Including Multiple Myeloma) Treatment (PDQ)
- Active multiple myeloma
- Untreated multiple myeloma
- Plasma cell myeloma
- Plasma Cell Myeloma in Remission
- Kahler's Disease in Remission
- Myeloma in Remission
ICD-10 Codes:
- C9000: Multiple myeloma not having achieved remission
- C9001: Multiple myeloma in remission
What procedures does a Hematology / Oncology Specialist like Dr. Fesler typically perform?
As a Hematology / Oncology Specialist, Dr. Fesler 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. Fesler. 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. Learn more about our claims-based healthcare methodology here.
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
Does Dr. Fesler accept my insurance?
Dr. Fesler accepts most major insurance plans. Important: Please call our office at (314) 577-6056 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Fesler accept in Saint Louis, MO?
Dr. Fesler in Saint Louis, MO accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Aetna
Blue Cross Blue Shield
Blue Cross Blue Shield of Illinois
Blue Cross Blue Shield of Michigan
Capital Blue Cross
Cigna
CMS
Elevance Health Inc. (formerly Anthem)
Empire Blue Cross Blue Shield
Medicare
View All Insurances
Where is Dr. Fesler's office located?
What is Dr. Fesler's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Fesler's National Provider Identifier (NPI) number is 1235204066.
What common questions do patients ask about Dr. Fesler?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Fesler
What is Dr. Mark Fesler's specialty?
Dr. Fesler is a Hematology / Oncology Specialist near Saint Louis, MO.
What does a Hematology / Oncology Specialist do?
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.
Is this Dr. Mark Fesler affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Fesler is affiliated with St. Luke's Hospital - Chesterfield, Mo which is a Castle Connolly Top Hospital. 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
When to see a Hematology / Oncology Specialist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Hematology / Oncology Specialist. Explore 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 Mark Fesler accepting new patients in Saint Louis, MO?
Yes, Dr. Mark Fesler is accepting new patients at this time.
Does Dr. Mark Fesler offer online booking?
Please contact Dr. Fesler's office at (314) 577-6056 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mark Fesler?
Please contact Dr. Fesler's office at (314) 577-6056 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Mark Fesler have?
Dr. Mark Fesler is certified by the American Board of Internal Medicine.
<section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>