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Dr. Gregory Haase, DO

Warsaw, IN

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Haase, Internist in Warsaw, IN?

    Dr. Gregory Haase, DO is an Internist, who primarily practices in Warsaw, IN. He is board certified. Dr. Haase is fluent in English, and is currently seeing new patients. Dr. Haase’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Haase’s office at (574) 372-5868.

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

    • Medical School: Des Moines University College of Osteopathic Medicine and Health Sciences

    What languages does Dr. Haase speak?

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

    • English

    What conditions does Dr. Haase treat?

    As a Internist, Dr. Haase 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. Haase. 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:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • Therapeutic Drug Monitoring
    • Drug level testing
    • Medication monitoring
    • Therapeutic drug management

    ICD-10 Codes:

    • Z5181: Encounter for therapeutic drug level monitoring

    Also known as:

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

    ICD-10 Codes:

    • E785: Hyperlipidemia, unspecified

    Also known as:

    • Type 2 Diabetes
    • Type 2 Diabetes with Hypoglycemia
    • Diabetes Type 2
    • Type 2 diabetes
    • Diabetes Complicationss
    • Hypoglycemia
    • Diabetes Mellitus Type 2
    • Adult-Onset Diabetes
    • Non-Insulin Dependent Diabetes
    • Low blood sugar from diabetes
    • Diabetic low blood sugar
    • Hypoglycemic episode

    ICD-10 Codes:

    • E119: Type 2 diabetes mellitus without complications
    • E11649: Type 2 diabetes mellitus with hypoglycemia without coma

    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:

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

    ICD-10 Codes:

    • E039: Hypothyroidism, unspecified

    Also known as:

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

    ICD-10 Codes:

    • Z23: Encounter for immunization

    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:

    • Malabsorption After Surgery
    • After Surgery
    • Malabsorption Syndromes
    • Postoperative Malabsorption
    • Nutrient Absorption Issues After Surgery
    • Surgical Malabsorption

    ICD-10 Codes:

    • K912: Postsurgical malabsorption, not elsewhere classified

    Also known as:

    • COPD
    • Chronic Obstructive Pulmonary Disease
    • Chronic Lung Disease
    • Emphysema and Chronic Bronchitis

    ICD-10 Codes:

    • J449: Chronic obstructive pulmonary disease, unspecified

    Also known as:

    • Blood Infection from Central Line
    • Central Line Associated Bloodstream Infection (CLABSI)
    • Catheter Sepsis
    • Central Venous Catheter Infection

    ICD-10 Codes:

    • T80211A: Bloodstream infection due to central venous catheter, initial encounter

    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:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    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:

    • 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:

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

    ICD-10 Codes:

    • I480: Paroxysmal atrial fibrillation

    Also known as:

    • Abnormal Heart Imaging Results
    • Heart Health Tests
    • Abnormal cardiac scan
    • Unusual heart test results
    • Abnormal coronary imaging

    ICD-10 Codes:

    • R931: Abnormal findings on diagnostic imaging of heart and coronary circulation

    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:

    • Allergic Rhinitis
    • Allergy
    • Nasal allergies
    • Allergy rhinitis
    • Chronic runny nose

    ICD-10 Codes:

    • J309: Allergic rhinitis, unspecified

    Which procedures does Dr. Haase perform as a Internist?

    As a Internist, procedures performed by an Dr. Gregory Haase may include:

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

    Does Dr. Haase accept my insurance?

    Dr. Haase accepts most major insurance plans. Important: Please call our office at (574) 372-5868 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Haase accept in Warsaw, IN?

    Dr. Haase in Warsaw, IN accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Blue Cross Blue Shield of Michigan

    • Carpenters Funds Administrative Office (CA)

    • CVS Health (formerly Aetna)

    • Department of Veterans Affairs

    • Dollar General

    • Elevance Health Inc. (formerly Anthem)

    • Humana

    • Medicare

    • State of Tennessee

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Haase's office located?

    Dr. Gregory Haase's Primary Practice

    1540 Provident Dr

    Warsaw, IN 46580

    (574) 372-5868

    Get Directions

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

    Dr. Haase's National Provider Identifier (NPI) number is 1851357032.

    What common questions do patients ask about Dr. Haase?

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

    What is Dr. Gregory Haase's specialty?

    Dr. Haase is a Internist near Warsaw, IN.

    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. Haase to book an appointment today.

    Is this Dr. Gregory Haase affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Haase is affiliated with Piedmont Athens Regional, Parkview Whitley Hospital, Elkhart General Hospital, Cleveland Clinic Main Campus 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 Gregory Haase accepting new patients in Warsaw, IN?

    Yes, Dr. Gregory Haase is accepting new patients at this time.

    Does Dr. Gregory Haase offer online booking?

    Please contact Dr. Haase's office at (574) 372-5868 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Gregory Haase?

    Please contact Dr. Haase's office at (574) 372-5868 for information regarding telehealth appointment availability or for scheduling assistance.

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