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Dr. John Sierocki, MD

Princeton, NJ

46 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Sierocki, Medical Oncologist in Princeton, NJ?

    Dr. John Sierocki, MD is a Medical Oncologist, who primarily practices in Princeton, NJ with 1 additional practice location. He has been practicing for over 46 years and is board certified by the American Board of Internal Medicine. Dr. Sierocki graduated from MCP HAHNEMANN UNIV (FORMERLY ALLEGHENY UNIV) and completed his residency at Mem Sloan-Kettering Cancer Ctr, Medical Oncology; Hahnemann Univ Hosp, Internal Medicine. Dr. Sierocki is fluent in English, and is currently seeing new patients. Dr. Sierocki’s practice accepts Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Sierocki’s office at (609) 924-9300.

    What are Areas of Expertise for Dr. Sierocki?

    Dr. John Sierocki, MD is a highly-rated, board-certified Medical Oncologist 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. Sierocki empowers patients to confidently navigate their health journey, specializing in Brain Tumors, Breast Cancer, Colon Cancer, Gliomas, Head & Neck Cancer, Hematology, Lung Cancer, Lymphoma, Medical Oncology, Prostate Cancer, or comprehensive wellness support. Serving the Princeton/NJ community, Dr. Sierocki is dedicated to enhancing lives through expert, patient-centered care.

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

    • Residency: Mem Sloan-Kettering Cancer Ctr, Medical Oncology; Hahnemann Univ Hosp, Internal Medicine | Hahnemann University Philadelphia | Drexel University College of Medicine/Hahnemann University Hospital Program

    • Medical School: MCP HAHNEMANN UNIV (FORMERLY ALLEGHENY UNIV) | HAHNEMANN UNIVERSITY COLLEGE OF MEDICINE

    Is Dr. Sierocki board certified in Medical Oncologist?

    Yes, Dr. John Sierocki, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Sierocki speak?

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

    • English

    What conditions does Dr. Sierocki treat?

    As a Medical Oncologist, Dr. Sierocki 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. Sierocki. 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:

    • 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:

    • Other Long-Term Drug Therapy
    • Chronic medication use
    • Ongoing drug treatment
    • Extended drug therapy

    ICD-10 Codes:

    • Z79899: Other long term (current) drug therapy

    Also known as:

    • Anemia
    • Low Red Blood Cell Count
    • Low Hemoglobin
    • Iron deficiency

    ICD-10 Codes:

    • D649: Anemia, unspecified

    Also known as:

    • Breast Cancer
    • Mammary cancer
    • Breast carcinoma
    • Breast tumor
    • Female Breast Cancer
    • Malignant Breast Tumor
    • Breast Carcinoma

    ICD-10 Codes:

    • C50911: Malignant neoplasm of unspecified site of right female breast
    • C50912: Malignant neoplasm of unspecified site of left female breast
    • C50919: Malignant neoplasm of unspecified site of unspecified female breast

    Also known as:

    • High Cholesterol
    • Cholesterol
    • Triglycerides
    • Hyperlipidemia
    • High lipids
    • Dyslipidemia

    ICD-10 Codes:

    • E785: Hyperlipidemia, unspecified

    Also known as:

    • Iron Deficiency
    • Iron
    • Malnutrition
    • Lack of Iron
    • Low Iron Levels
    • Iron Depletion

    ICD-10 Codes:

    • E611: Iron deficiency

    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:

    • Fatigue
    • Tiredness
    • Lack of energy
    • Exhaustion

    ICD-10 Codes:

    • R5383: Other fatigue

    Also known as:

    • Hypothyroidism
    • Congenital hypothyroidism
    • Hypothyroidism (Underactive Thyroid)
    • Underactive Thyroid
    • Low Thyroid Function

    ICD-10 Codes:

    • E039: Hypothyroidism, unspecified

    Also known as:

    • Colorectal Cancer
    • Rectal cancer
    • Colon cancer
    • Bowel cancer
    • Malignant neoplasm of rectum
    • Malignant neoplasm of colon

    ICD-10 Codes:

    • C20: Malignant neoplasm of rectum
    • C189: Malignant neoplasm of colon, unspecified

    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:

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

    ICD-10 Codes:

    • C3490: Malignant neoplasm of unspecified part of unspecified bronchus or lung

    Also known as:

    • Nausea
    • Nausea and Vomiting
    • Feeling Sick to Stomach
    • Queasiness
    • Upset Stomach

    ICD-10 Codes:

    • R110: Nausea

    Also known as:

    • Dehydration
    • Fluid and Electrolyte Balance
    • Lack of Fluids
    • Fluid Loss
    • Body Water Depletion

    ICD-10 Codes:

    • E860: Dehydration

    Also known as:

    • Secondary Bone Cancer
    • Bone Cancer
    • Metastatic bone cancer
    • Cancer spread to bone
    • Bone metastases

    ICD-10 Codes:

    • C7951: Secondary malignant neoplasm of bone

    Also known as:

    • Bladder Cancer
    • Urinary Bladder Cancer
    • Bladder Carcinoma

    ICD-10 Codes:

    • C679: Malignant neoplasm of bladder, unspecified

    Also known as:

    • High Blood Pressure
    • Hypertension
    • Primary Hypertension
    • Essential Hypertension

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Which procedures does Dr. Sierocki perform as a Medical Oncologist?

    As a Medical Oncologist, procedures performed by a Dr. John Sierocki may include:

    For detailed information, please contact Dr. Sierocki's office.

    Does Dr. Sierocki accept my insurance?

    Dr. Sierocki accepts most major insurance plans. Important: Please call our office at (609) 924-9300 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Sierocki accept in Princeton, NJ?

    Dr. Sierocki in Princeton, NJ 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

    • Braven Health

    • Carepoint Health

    • CVS Health (formerly Aetna)

    • Express Scripts

    • Horizon BlueCross BlueShield

    • Independence Blue Cross

    • Medicare

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Sierocki's office located?

    Dr. John Sierocki's Primary Practice

    419 N Harrison St

    Princeton, NJ 08540

    (609) 924-9300

    Get Directions

    Dr. John Sierocki's Practice 2

    3 Liberty St

    Plainsboro, NJ 08536

    (609) 924-9300

    Get Directions

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

    Dr. Sierocki's National Provider Identifier (NPI) number is 1487792354.

    What common questions do patients ask about Dr. Sierocki?

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

    What is Dr. John Sierocki's specialty?

    Dr. Sierocki is a Medical Oncologist near Princeton, NJ. 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. Sierocki to book an appointment today.

    Is this Dr. John Sierocki affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Sierocki is affiliated with Penn Medicine Princeton Medical Center 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

    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 John Sierocki accepting new patients in Princeton, NJ?

    Yes, Dr. John Sierocki is accepting new patients at this time.

    Does Dr. John Sierocki offer online booking?

    Please contact Dr. Sierocki's office at (609) 924-9300 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with John Sierocki?

    Please contact Dr. Sierocki's office at (609) 924-9300 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. John Sierocki have?

    Dr. John Sierocki is certified by the American Board of Internal Medicine.

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