32 Years of Experience
Accepting patients
Who is Dr. Sienko, Medical Oncologist in Sequim, WA?
Dr. Mark Sienko, MD is a Medical Oncologist, who primarily practices in Sequim, WA with 2 additional practice locations. He has been practicing for over 32 years and is board certified. Dr. Sienko completed his residency at St Paul University Hospital. Dr. Sienko is fluent in English, Chinese, and Spanish, and is currently seeing new patients. Dr. Sienko’s practice accepts Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Sienko’s office at (360) 683-9895.
Where did Dr. Sienko go to medical school and complete their residency?
Fellowship: University of Texas Southwestern Medical Center at Dallas
Residency: St Paul University Hospital
Medical School: University of Illinois College of Medicine
Is Dr. Sienko board certified as a Medical Oncologist?
Yes, Dr. Mark Sienko, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Sienko speak?
Dr. Sienko and their clinical team can communicate with patients in the following languages:
Chinese
English
Spanish
What conditions does Dr. Sienko treat?
As a Medical Oncologist, Dr. Sienko 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. Sienko. 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
- 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:
- 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
Also known as:
- Pancreatic Cancer
- Cancer of the pancreas
- Malignant neoplasm of pancreas
- Pancreatic adenocarcinoma
ICD-10 Codes:
- C250: Malignant neoplasm of head of pancreas
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:
- 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:
- Colorectal Cancer
- Colon cancer
- Rectal cancer
- Bowel cancer
- Malignant neoplasm of colon
ICD-10 Codes:
- C189: Malignant neoplasm of colon, unspecified
Also known as:
- Immune Thrombocytopenic Purpura
- Platelet Disorder
- Immune thrombocytopenia
- ITP
- Idiopathic thrombocytopenic purpura
- Low platelet count
ICD-10 Codes:
- D693: Immune thrombocytopenic purpura
Also known as:
- Low Blood Pressure
- Hypotension
- Low BP
- Fainting Spells
ICD-10 Codes:
- I950: Idiopathic hypotension
What procedures does Dr. Sienko perform?
As a Medical Oncologist, Dr. Sienko 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. Sienko. 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
Does Dr. Sienko accept my insurance?
Dr. Sienko accepts most major insurance plans. Important: Please call our office at (360) 683-9895 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Sienko accept in Sequim, WA?
Dr. Sienko in Sequim, WA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Cambia (Regence)
Crown Cork and Seal Company
CVS Health (formerly Aetna)
EDS
Express Scripts
Medicare
SGS North America Inc
State of Tennessee
UnitedHealthcare
View All Insurances
Where is Dr. Sienko's office located?
What is Dr. Sienko's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Sienko's National Provider Identifier (NPI) number is 1932146552.
What common questions do patients ask about Dr. Sienko?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Sienko
What is Dr. Mark Sienko's specialty?
Dr. Sienko is a Medical Oncologist near Sequim, WA. An internist specializing in the diagnosis and treatment of various cancers and both benign and malignant tumors. This specialist determines and administers therapy for malignancies and collaborates with surgeons and radiation oncologists on additional cancer treatment options. Contact Dr. Sienko to book an appointment today.
Is this Dr. Mark Sienko affiliated with a ranked Castle Connolly Top Hospital?
No, Sienko is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: MultiCare Valley 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 Medical Oncologist?
Explore Medical Oncologist 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 Sienko accepting new patients in Sequim, WA?
Yes, Dr. Mark Sienko is accepting new patients at this time.
Does Dr. Mark Sienko offer online booking?
Please contact Dr. Sienko's office at (360) 683-9895 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mark Sienko?
Please contact Dr. Sienko's office at (360) 683-9895 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Mark Sienko have?
Dr. Mark Sienko is certified by the American Board of Internal Medicine.
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