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Dr. Greg Lewis, MD

La Jolla, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Lewis, Internist in La Jolla, CA?

    Dr. Greg Lewis, MD is an Internist, who primarily practices in La Jolla, CA. He is board certified. Dr. Lewis graduated from University of Miami Leonard M. Miller School of Medicine and completed his residency at Kaiser Fndn Hosp-Los Angeles, Internal Medicine. Dr. Lewis is fluent in English, and is currently seeing new patients. Dr. Lewis’s practice accepts Kaiser Permanente, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Lewis’s office at (619) 686-3874.

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

    • Residency: Kaiser Fndn Hosp-Los Angeles, Internal Medicine | Kaiser Fndn Hospital Los Angeles

    • Medical School: University of Miami Sch of Med, Miami Fl | University of Miami Leonard M. Miller School of Medicine

    Is Dr. Lewis board certified as an Internist?

    Yes, Dr. Greg Lewis, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Lewis speak?

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

    • English

    What conditions does Dr. Lewis treat?

    As an Internist, Dr. Lewis 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. Lewis. 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:

    • Sepsis
    • Blood Poisoning
    • Septicemia
    • Systemic Bacterial Infection

    ICD-10 Codes:

    • A419: Sepsis, unspecified organism

    Also known as:

    • Brain disease (encephalopathy)
    • Brain Disease
    • Brain disorder
    • Brain dysfunction
    • Encephalopathy

    ICD-10 Codes:

    • G9340: Encephalopathy, unspecified

    Also known as:

    • Pneumonia
    • Aspiration Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis
    • Inhalation Pneumonia
    • Chemical Pneumonitis
    • Aspiration Lung Infection

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism
    • J690: Pneumonitis due to inhalation of food and vomit

    Also known as:

    • Atrial Fibrillation
    • Afib
    • A-fib
    • Irregular heart rhythm

    ICD-10 Codes:

    • I4891: Unspecified atrial fibrillation
    • I480: Paroxysmal atrial fibrillation

    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:

    • Worsening Chronic Systolic Heart Failure
    • Heart Failure
    • Acute Decompensated HFrEF
    • Sudden Worsening Heart Failure
    • Acute on Chronic Pumping Heart Failure
    • Congestive Heart Failure
    • CHF
    • Cardiac Insufficiency

    ICD-10 Codes:

    • I5023: Acute on chronic systolic (congestive) heart failure
    • I509: Heart failure, unspecified

    Also known as:

    • Coronary Artery Bypass Graft
    • Coronary Artery Bypass Surgery
    • CABG
    • Heart Bypass Graft
    • Bypass Surgery Graft

    ICD-10 Codes:

    • Z951: Presence of aortocoronary bypass graft

    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:

    • Ischemic Stroke
    • Brain Attack
    • Cerebral Infarction
    • Brain Ischemia

    ICD-10 Codes:

    • I639: Cerebral infarction, unspecified

    Also known as:

    • Gastrointestinal Bleeding
    • Gastrointestinal (GI) Bleeding
    • GI Bleeding
    • Internal Digestive Bleeding
    • Digestive Tract Hemorrhage

    ICD-10 Codes:

    • K922: Gastrointestinal hemorrhage, 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

    Also known as:

    • Heart Attack (NSTEMI)
    • Heart Attack
    • Myocardial Infarction
    • Non-STEMI
    • Less Severe Heart Attack

    ICD-10 Codes:

    • I214: Non-ST elevation (NSTEMI) myocardial infarction

    Also known as:

    • Adult Failure to Thrive
    • Geriatric Failure to Thrive
    • Unexplained Decline in Adults
    • Wasting Syndrome in Adults

    ICD-10 Codes:

    • R627: Adult failure to thrive

    Also known as:

    • Intestinal Obstruction
    • Bowel Obstruction
    • Blocked Intestines
    • Gut Blockage

    ICD-10 Codes:

    • K56609: Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction

    Also known as:

    • Narrowed Aortic Valve
    • Heart Valve Disease
    • Aortic Valve Stenosis
    • Tight Aortic Valve

    ICD-10 Codes:

    • I350: Nonrheumatic aortic (valve) stenosis

    Also known as:

    • Muscle Weakness
    • Muscle Disorder
    • Loss of strength
    • Fatigue
    • Muscle fatigue

    ICD-10 Codes:

    • R531: Weakness

    Also known as:

    • Fainting
    • Syncope
    • Passing out
    • Collapse

    ICD-10 Codes:

    • R55: Syncope and collapse

    Which procedures does Dr. Lewis perform as an Internist?

    As an Internist, procedures performed by Dr. Greg Lewis may include:

    For detailed information, please contact Dr. Lewis' office.

    Does Dr. Lewis accept my insurance?

    Dr. Lewis accepts most major insurance plans. Important: Please call our office at (619) 686-3874 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Lewis accept in La Jolla, CA?

    Dr. Lewis in La Jolla, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Beacon Health Options

    • Blue Shield of California

    • Community Health Group

    • Crown Cork and Seal Company

    • Kaiser Permanente

    • Medicare

    • Molina

    • Scripps Health

    • State of Tennessee

    View All Insurances

    Where is Dr. Lewis' office located?

    Dr. Greg Lewis' Primary Practice

    9850 Genesee Ave Ste 900

    La Jolla, CA 92037

    (619) 686-3874

    Get Directions

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

    Dr. Lewis's National Provider Identifier (NPI) number is 1063447811.

    What common questions do patients ask about Dr. Lewis?

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

    What is Dr. Greg Lewis's specialty?

    Dr. Lewis is a Internist near La Jolla, CA.

    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. Lewis to book an appointment today.

    Is this Dr. Greg Lewis affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Lewis is affiliated with Scripps Memorial Hospital La Jolla, Kaiser Permanente San Diego Medical Center, St. Bernardine Medical Center, Scripps Mercy Hospital San Diego, Sharp Grossmont Hospital, Sharp Memorial Hospital which are a Castle Connolly Top Hospitals. 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 Greg Lewis accepting new patients in La Jolla, CA?

    Yes, Dr. Greg Lewis is accepting new patients at this time.

    Does Dr. Greg Lewis offer online booking?

    Please contact Dr. Lewis's office at (619) 686-3874 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Greg Lewis?

    Please contact Dr. Lewis's office at (619) 686-3874 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Greg Lewis have?

    Dr. Greg Lewis is certified by the American Board of Internal Medicine.

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