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, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Sienko’s office.
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 a Medical Oncologist like Dr. Sienko typically 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. Learn more about our claims-based healthcare methodology.
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:
- 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:
- Pancreatic Cancer
- Cancer of the pancreas
- Malignant neoplasm of pancreas
- Pancreatic adenocarcinoma
ICD-10 Codes:
- C250: Malignant neoplasm of head of pancreas
What procedures does a Medical Oncologist like Dr. Sienko typically 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. Learn more about our claims-based healthcare methodology.
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 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
Aetna
All Other Third Party
Blue Cross of Idaho Health Service
Cambia Health Solutions
Medicare
Molina Healthcare
Northwell Health
Premera Blue Cross
UnitedHealth Group
Unknown
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.
What does a Medical Oncologist do?
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.
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
When to see a Medical Oncologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Medical Oncologist. 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 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 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 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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