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Dr. John Oneill, DO

Newark, DE

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Oneill, Internist in Newark, DE?

    Dr. John Oneill, DO is an Internist, who primarily practices in Newark, DE with 2 additional practice locations. He is board certified. Dr. Oneill graduated from University of Osteopathic Medicine and Health Sciences and completed his residency at Albert Einstein Medical Center. Dr. Oneill is fluent in English, and is currently seeing new patients. Dr. Oneill’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Oneill’s office at (302) 623-0188.

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

    • Residency: Albert Einstein Medical Center

    • Medical School: University of Osteopathic Medicine and Health Sciences | University of Osteopathic Medicine and Health Sciences

    What languages does Dr. Oneill speak?

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

    • English

    What conditions does Dr. Oneill treat?

    As a Internist, Dr. Oneill 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. Oneill. 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:

    • Acute Kidney Failure
    • Kidney Failure
    • Acute Renal Failure
    • Sudden Kidney Failure

    ICD-10 Codes:

    • N179: Acute kidney failure, unspecified

    Also known as:

    • Type 2 Diabetes
    • Type 2 Diabetes with High Blood Sugar
    • Diabetes Type 2
    • Type 2 diabetes
    • Hyperglycemia
    • Diabetes Mellitus Type 2
    • Adult-Onset Diabetes
    • Non-Insulin Dependent Diabetes
    • Diabetic Hyperglycemia
    • High Blood Glucose
    • High Sugar Levels

    ICD-10 Codes:

    • E119: Type 2 diabetes mellitus without complications
    • E1165: Type 2 diabetes mellitus with hyperglycemia

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    Also known as:

    • Urinary Tract Infection
    • UTI
    • Bladder infection
    • Kidney infection
    • Urine infection

    ICD-10 Codes:

    • N390: Urinary tract infection, site not specified

    Also known as:

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

    ICD-10 Codes:

    • D649: Anemia, unspecified

    Also known as:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • COVID-19
    • COVID-19 (Coronavirus Disease 2019)
    • Coronavirus Disease 2019
    • SARS-CoV-2 Infection
    • Novel Coronavirus

    ICD-10 Codes:

    • U071: COVID-19

    Also known as:

    • Falls
    • Accidental Falls
    • Unintentional Falls
    • Falling Accidents

    ICD-10 Codes:

    • W19XXXA: Unspecified fall, initial encounter

    Also known as:

    • Acute Respiratory Failure with Low Oxygen
    • Respiratory Failure
    • Sudden lung failure with low oxygen
    • Hypoxic respiratory failure
    • Acute breathing failure with hypoxia

    ICD-10 Codes:

    • J9601: Acute respiratory failure with hypoxia

    Also known as:

    • Low Blood Oxygen
    • Lung Disease
    • Hypoxemia
    • Reduced oxygen in blood
    • Oxygen deficiency

    ICD-10 Codes:

    • R0902: Hypoxemia

    Also known as:

    • End-Stage Kidney Disease
    • Kidney Failure
    • Chronic Kidney Disease (CKD)
    • Helping Your Child Adapt to Life with Chronic Kidney Disease
    • ESRD
    • End-Stage Renal Failure

    ICD-10 Codes:

    • N186: End stage renal disease

    Also known as:

    • Metabolic Brain Disorder
    • Brain Disease
    • Metabolic Encephalopathy
    • Brain Dysfunction from Metabolism

    ICD-10 Codes:

    • G9341: Metabolic encephalopathy

    Also known as:

    • Blood Infection
    • Sepsis
    • Bacteremia
    • Bacteria in blood
    • Bloodstream infection

    ICD-10 Codes:

    • R7881: Bacteremia

    Also known as:

    • Sepsis
    • Blood Poisoning
    • Septicemia
    • Systemic Bacterial Infection

    ICD-10 Codes:

    • A419: Sepsis, unspecified organism

    Also known as:

    • Pleural Effusion
    • Pleural Disorder
    • Fluid in lungs
    • Water on the lung
    • Fluid around lungs

    ICD-10 Codes:

    • J90: Pleural effusion, not elsewhere classified

    Also known as:

    • Immunization Visit
    • Vaccines
    • Vaccination appointment
    • Shot visit
    • Immunization encounter

    ICD-10 Codes:

    • Z23: Encounter for immunization

    Also known as:

    • Low Sodium Levels
    • Fluid and Electrolyte Balance
    • Sodium
    • Hyponatremia
    • Low Blood Sodium
    • Sodium Deficiency

    ICD-10 Codes:

    • E871: Hypo-osmolality and hyponatremia

    Also known as:

    • Urinary Retention
    • Urine and Urination
    • Inability to urinate', 'Bladder retention', 'Can't pee
    • Trouble emptying bladder

    ICD-10 Codes:

    • R339: Retention of urine, unspecified

    Also known as:

    • Hardening of the Arteries in the Heart without Chest Pain
    • Atherosclerosis
    • Coronary Artery Disease
    • Silent Coronary Artery Disease
    • Asymptomatic Atherosclerosis

    ICD-10 Codes:

    • I2510: Atherosclerotic heart disease of native coronary artery without angina pectoris

    Which procedures does Dr. Oneill perform as a Internist?

    As a Internist, procedures performed by an Dr. John Oneill may include:

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

    Does Dr. Oneill accept my insurance?

    Dr. Oneill accepts most major insurance plans. Important: Please call our office at (302) 623-0188 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Oneill accept in Newark, DE?

    Dr. Oneill in Newark, DE accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Centene

    • CVS Health (formerly Aetna)

    • Department of Defense / Tricare

    • Express Scripts

    • Highmark Inc.

    • Humana

    • Independence Blue Cross

    • Medicare

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Oneill's office located?

    Dr. John Oneill's Primary Practice

    4755 Ogletown Stanton Rd

    Newark, DE 19718

    (302) 623-0188

    Get Directions

    Dr. John Oneill's Practice 2

    501 W 14th St Rm 5

    Wilmington, DE 19801

    Get Directions

    Dr. John Oneill's Practice 3

    1401 Foulk Rd

    Wilmington, DE 19803

    Get Directions

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

    Dr. Oneill's National Provider Identifier (NPI) number is 1265445233.

    What common questions do patients ask about Dr. Oneill?

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

    What is Dr. John Oneill's specialty?

    Dr. Oneill is a Internist near Newark, DE.

    A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

    Contact Dr. Oneill to book an appointment today.

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

    Yes, Dr. Oneill is affiliated with Wilmington Hospital 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 Internist?

    Explore Internist 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 Oneill accepting new patients in Newark, DE?

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

    Does Dr. John Oneill offer online booking?

    Please contact Dr. Oneill's office at (302) 623-0188 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with John Oneill?

    Please contact Dr. Oneill's office at (302) 623-0188 for information regarding telehealth appointment availability or for scheduling assistance.

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