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Dr. Leonard Treihaft, MD

Lake Grove, NY

28 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Treihaft, Internist in Lake Grove, NY?

    Dr. Leonard Treihaft, MD is an Internist, who primarily practices in Lake Grove, NY with 2 additional practice locations. He has been practicing for over 28 years and is board certified. Dr. Treihaft completed his residency at Long Island Jewish Med Ctr, Internal Medicine. Dr. Treihaft is fluent in English, Italian, and Russian, and is currently seeing new patients. Dr. Treihaft’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Treihaft’s office at (519) 328-2290.

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

    • Residency: Long Island Jewish Med Ctr, Internal Medicine

    Is Dr. Treihaft board certified as an Internist?

    Yes, Dr. Leonard Treihaft, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Treihaft speak?

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

    • English

    • Italian

    • Russian

    What conditions does Dr. Treihaft treat?

    As an Internist, Dr. Treihaft 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. Treihaft. 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:

    • Routine Adult Health Checkup
    • Health Checkup
    • Adult physical exam
    • Annual wellness visit for adults
    • General adult medical exam

    ICD-10 Codes:

    • Z0000: Encounter for general adult medical examination without abnormal findings

    Also known as:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • High Cholesterol
    • Cholesterol
    • Triglycerides
    • Hyperlipidemia
    • High lipids
    • Dyslipidemia
    • Hypercholesterolemia
    • High blood cholesterol
    • Elevated cholesterol

    ICD-10 Codes:

    • E785: Hyperlipidemia, unspecified
    • E7800: Pure hypercholesterolemia, unspecified

    Also known as:

    • Type 2 Diabetes
    • Diabetes Type 2
    • Type 2 diabetes
    • Diabetes Mellitus Type 2
    • Adult-Onset Diabetes
    • Non-Insulin Dependent Diabetes

    ICD-10 Codes:

    • E119: Type 2 diabetes mellitus without complications

    Also known as:

    • Common Cold
    • Upper Respiratory Infection
    • Head Cold
    • Cold Symptoms

    ICD-10 Codes:

    • J069: Acute upper respiratory infection, unspecified

    Also known as:

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

    ICD-10 Codes:

    • E039: Hypothyroidism, unspecified

    Also known as:

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

    ICD-10 Codes:

    • D649: Anemia, unspecified

    Also known as:

    • Other Pre-Procedure Examination
    • Various pre-op checks
    • Miscellaneous pre-surgery exams
    • Other pre-treatment assessments

    ICD-10 Codes:

    • Z01818: Encounter for other preprocedural examination

    Also known as:

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

    ICD-10 Codes:

    • Z23: Encounter for immunization

    Also known as:

    • Abnormal Liver Function Test
    • Liver Disease
    • Irregular Liver Function Study
    • Unusual Liver Exam
    • Liver Disease Diagnosis

    ICD-10 Codes:

    • R945: Abnormal results of liver function studies

    Also known as:

    • Fatty Liver Disease
    • Liver Disease
    • Nonalcoholic Fatty Liver Disease (NAFLD) & NASH
    • Nonalcoholic Fatty Liver Disease & NASH in Children
    • NAFLD
    • NASH
    • Hepatic steatosis

    ICD-10 Codes:

    • K760: Fatty (change of) liver, not elsewhere classified

    Also known as:

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

    ICD-10 Codes:

    • I639: Cerebral infarction, unspecified

    Also known as:

    • Mammogram for Breast Cancer Screening
    • Health Screening
    • Mammography
    • Breast Cancer Screening (PDQ®)
    • Mammograms
    • Breast X-ray
    • Breast Cancer Check

    ICD-10 Codes:

    • Z1231: Encounter for screening mammogram for malignant neoplasm of breast

    Also known as:

    • Primary Generalized Osteoarthritis
    • Osteoarthritis
    • Primary Widespread Arthritis
    • Idiopathic Generalized Osteoarthritis
    • Generalized Degenerative Joint Disease

    ICD-10 Codes:

    • M150: Primary generalized (osteo)arthritis

    Which procedures does Dr. Treihaft perform as an Internist?

    As an Internist, procedures performed by Dr. Leonard Treihaft may include:

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

    Does Dr. Treihaft accept my insurance?

    Dr. Treihaft accepts most major insurance plans. Important: Please call our office at (519) 328-2290 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Treihaft accept in Lake Grove, NY?

    Dr. Treihaft in Lake Grove, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • ArcBest Corporation

    • ASR Corporation

    • CVS Health (formerly Aetna)

    • Express Scripts

    • Healthfirst

    • MagnaCare Rx

    • Medicare

    • Service Employees International Union (SEIU)

    • State of Tennessee

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Treihaft's office located?

    Dr. Leonard Treihaft's Primary Practice

    1995 Nesconset Hwy

    Lake Grove, NY 11755

    (519) 328-2290

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    Dr. Leonard Treihaft's Practice 2

    2248 31st St

    Astoria, NY 11105

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    Dr. Leonard Treihaft's Practice 3

    2035 Lakeville Rd

    New Hyde Park, NY 11040

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

    Dr. Treihaft's National Provider Identifier (NPI) number is 1053347401.

    What common questions do patients ask about Dr. Treihaft?

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

    What is Dr. Leonard Treihaft's specialty?

    Dr. Treihaft is a Internist near Lake Grove, NY.

    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. Treihaft to book an appointment today.

    Is this Dr. Leonard Treihaft affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Treihaft is affiliated with Long Island Jewish 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 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 Leonard Treihaft accepting new patients in Lake Grove, NY?

    Yes, Dr. Leonard Treihaft is accepting new patients at this time.

    Does Dr. Leonard Treihaft offer online booking?

    Please contact Dr. Treihaft's office at (519) 328-2290 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Leonard Treihaft?

    Please contact Dr. Treihaft's office at (519) 328-2290 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Leonard Treihaft have?

    Dr. Leonard Treihaft is certified by the American Board of Internal Medicine.

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