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Accepting patients
Who is Dr. Walshauser, Hematology / Oncology Specialist in O Fallon, IL?
Dr. Mark Walshauser, MD is a Hematology / Oncology Specialist, who primarily practices in O Fallon, IL with 2 additional practice locations. He is board certified by the American Board of Internal Medicine. Dr. Walshauser is fluent in English, and is currently seeing new patients. Dr. Walshauser’s practice accepts Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Walshauser’s office at (618) 416-7970.
What are Areas of Expertise for Dr. Walshauser?
Dr. Mark Walshauser, 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. Walshauser empowers patients to confidently navigate their health journey, specializing in Hematology, or comprehensive wellness support. Serving the O Fallon/IL community, Dr. Walshauser is dedicated to enhancing lives through expert, patient-centered care.
Is Dr. Walshauser board certified in Hematology / Oncology Specialist?
Yes, Dr. Mark Walshauser, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Walshauser speak?
Dr. Walshauser and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Walshauser treat?
As a Hematology / Oncology Specialist, Dr. Walshauser 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. Walshauser. 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:
- Iron Deficiency Anemia
- Iron Deficiency Anemia from Chronic Blood Loss
- Anemia
- Anemia from Chronic Kidney Disease
- Iron
- Chronic Kidney Disease
- Anemia in Chronic Kidney Disease
- Anemia from Iron Lack
- Low Iron Anemia
- Sideropenic Anemia
- Anemia due to iron deficiency and blood loss
- Chronic blood loss anemia
- Low iron anemia from bleeding
- Low Red Blood Cell Count
- Low Hemoglobin
- Iron deficiency
- Kidney Disease Anemia
- Renal Anemia
- Anemia of kidney failure
ICD-10 Codes:
- D509: Iron deficiency anemia, unspecified
- D508: Other iron deficiency anemias
- D500: Iron deficiency anemia secondary to blood loss (chronic)
- D649: Anemia, unspecified
- D631: Anemia in chronic kidney disease
Also known as:
- Lung Cancer
- Bronchial cancer
- Malignant neoplasm of lung
- Pulmonary cancer
- Right lung cancer
- Left Lung Cancer
- Upper Lobe Lung Cancer
- Bronchial Cancer
ICD-10 Codes:
- C3490: Malignant neoplasm of unspecified part of unspecified bronchus or lung
- C3491: Malignant neoplasm of unspecified part of right bronchus or lung
- C3412: Malignant neoplasm of upper lobe, left bronchus or lung
Also known as:
- Nausea
- Nausea and Vomiting
- Feeling Sick to Stomach
- Queasiness
- Upset Stomach
- Feeling Sick and Throwing Up
- Stomach Flu Symptoms
- Queasy and Vomiting
ICD-10 Codes:
- R110: Nausea
- R112: Nausea with vomiting, unspecified
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:
- Other Specific B Vitamin Deficiency
- B Vitamins
- Malnutrition
- Specific B Vitamin Shortage
- Less Common B Vitamin Deficiency
- Rare B Vitamin Deficiency
ICD-10 Codes:
- E538: Deficiency of other specified B group vitamins
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:
- Estrogen Receptor Positive (ER+) Status
- Breast Cancer
- ER Positive Breast Cancer
- Hormone-Sensitive Breast Cancer
- Estrogen-Driven Cancer
ICD-10 Codes:
- Z170: Estrogen receptor positive status [ER+]
Also known as:
- Muscle Weakness
- Muscle Disorder
- Loss of strength
- Fatigue
- Muscle fatigue
ICD-10 Codes:
- R531: Weakness
Also known as:
- Ovarian Cancer
- Ovarian Epithelial, Fallopian Tube, and Primary Peritoneal Cancer Treatment (PDQ)
- Cancer of the ovary
- Ovarian carcinoma
- Female reproductive cancer
ICD-10 Codes:
- C569: Malignant neoplasm of unspecified ovary
Also known as:
- Colorectal Cancer
- Colon cancer
- Rectal cancer
- Bowel cancer
- Malignant neoplasm of colon
ICD-10 Codes:
- C189: Malignant neoplasm of colon, unspecified
Also known as:
- Stomach Cancer
- Gastric Cancer
- Stomach Carcinoma
- Cardia Cancer
ICD-10 Codes:
- C160: Malignant neoplasm of cardia
Also known as:
- Sickle Cell Disease with Crisis
- Sickle Cell Disease
- Sickle Cell Anemia Crisis
- Sickle Cell Pain Crisis
- Vaso-Occlusive Crisis
ICD-10 Codes:
- D5700: Hb-SS disease with crisis, unspecified
Also known as:
- Dehydration
- Fluid and Electrolyte Balance
- Lack of Fluids
- Fluid Loss
- Body Water Depletion
ICD-10 Codes:
- E860: Dehydration
Which procedures does Dr. Walshauser perform as a Hematology / Oncology Specialist?
As a Hematology / Oncology Specialist, procedures performed by a Dr. Mark Walshauser may include:
- 3D Conformal Radiotherapy
- Adaptive Radiation Therapy (ART)
- Adrenalectomy
- Blood Thinning Therapy / Anticoagulation
- Blood Transfusion Consultation
- Blood Transfusion Follow Up
- Bone Excision
- Bone Grafting
For detailed information, please contact Dr. Walshauser's office.
Does Dr. Walshauser accept my insurance?
Dr. Walshauser accepts most major insurance plans. Important: Please call our office at (618) 416-7970 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Walshauser accept in O Fallon, IL?
Dr. Walshauser in O Fallon, 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
Allied Benefit Systems
Centene
CVS Health (formerly Aetna)
Group Administrators Ltd
Health Care Service Corporation (HCSC)
Medicare
Molina
State of Illinois
UnitedHealthcare
View All Insurances
Where is Dr. Walshauser's office located?
Dr. Mark Walshauser's Primary Practice
321 Regency Park Ste 100
O Fallon, IL 62269
(618) 416-7970
What is Dr. Walshauser's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Walshauser's National Provider Identifier (NPI) number is 1306020664.
What common questions do patients ask about Dr. Walshauser?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Walshauser
What is Dr. Mark Walshauser's specialty?
Dr. Walshauser is a Hematology / Oncology Specialist near O Fallon, 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. Walshauser to book an appointment today.
Is this Dr. Mark Walshauser affiliated with a ranked Castle Connolly Top Hospital?
No, Walshauser is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: HSHS St. Elizabeth's Hospital. 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 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 Mark Walshauser accepting new patients in O Fallon, IL?
Yes, Dr. Mark Walshauser is accepting new patients at this time.
Does Dr. Mark Walshauser offer online booking?
Please contact Dr. Walshauser's office at (618) 416-7970 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mark Walshauser?
Please contact Dr. Walshauser's office at (618) 416-7970 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Mark Walshauser have?
Dr. Mark Walshauser is certified by the American Board of Internal Medicine.
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