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Dr. Kathryn Grinnen, DO

Dr. Kathryn Grinnen, DO

Rehoboth Beach, DE

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Grinnen, Internist in Rehoboth Beach, DE?

    Dr. Kathryn Grinnen, DO is an Internist, who primarily practices in Rehoboth Beach, DE with 2 additional practice locations. She is board certified by the American Board of Internal Medicine. Dr. Grinnen graduated from Lake Erie College Of Osteopathic Medicine. Dr. Grinnen is fluent in English, and is currently seeing new patients. Dr. Grinnen’s practice accepts Cigna, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Grinnen’s office.

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

    • Medical School: LAKE ERIE COLL OF OSTEO MEDICINE | Lake Erie College Of Osteopathic Medicine

    Is Dr. Grinnen board certified in Internist?

    Yes, Dr. Kathryn Grinnen, DO is board certified by the American Board of Internal Medicine

    What languages does Dr. Grinnen speak?

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

    • English

    What conditions does Dr. Grinnen treat?

    As a Internist, Dr. Grinnen 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. Grinnen. 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 Cholesterol
    • Cholesterol
    • Triglycerides
    • Hyperlipidemia
    • High lipids
    • Dyslipidemia

    ICD-10 Codes:

    • E785: Hyperlipidemia, 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:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    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:

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

    ICD-10 Codes:

    • E039: Hypothyroidism, unspecified

    Also known as:

    • High Fasting Blood Sugar
    • Blood Glucose
    • Impaired Fasting Glucose
    • Prediabetes (Fasting)
    • Borderline Diabetes (Fasting)

    ICD-10 Codes:

    • R7301: Impaired fasting glucose

    Also known as:

    • Painful Urination
    • Urine and Urination
    • Dysuria
    • Burning when peeing
    • Stinging during urination

    ICD-10 Codes:

    • R300: Dysuria

    Also known as:

    • Cough
    • Coughing
    • Persistent cough
    • Chronic cough

    ICD-10 Codes:

    • R059: Cough, 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:

    • 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:

    • Fatigue
    • Tiredness
    • Lack of energy
    • Exhaustion

    ICD-10 Codes:

    • R5383: Other fatigue

    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:

    • Abdominal Pain
    • Stomach Ache
    • Belly Pain
    • Stomach Pain

    ICD-10 Codes:

    • R109: Unspecified abdominal pain

    Also known as:

    • Other Specific Healthcare Encounters
    • Special Medical Visits
    • Unusual Doctor Appointments
    • Healthcare for Unique Situations

    ICD-10 Codes:

    • Z7689: Persons encountering health services in other specified circumstances

    Also known as:

    • Low Back Pain
    • Back Pain
    • Lumbago
    • Lower Back Ache
    • Backache

    ICD-10 Codes:

    • M5450: Low back pain, unspecified

    Also known as:

    • History of Nicotine Dependence
    • E-Cigarettes
    • Smokeless Tobacco
    • Smoking
    • Past nicotine addiction
    • Previous smoking habit
    • History of tobacco use disorder

    ICD-10 Codes:

    • Z87891: Personal history of nicotine dependence

    Also known as:

    • Age-Related Osteoporosis
    • Fractures
    • Osteoporosis
    • Senile Osteoporosis
    • Primary Osteoporosis
    • Bone Thinning from Aging

    ICD-10 Codes:

    • M810: Age-related osteoporosis without current pathological fracture

    Also known as:

    • Other Abnormal Enzyme Levels
    • Unspecified high enzymes
    • Various enzyme abnormalities
    • Abnormal serum enzyme levels

    ICD-10 Codes:

    • R748: Abnormal levels of other serum enzymes

    Also known as:

    • Diarrhea
    • Loose stools
    • Runny poop
    • Frequent bowel movements

    ICD-10 Codes:

    • R197: Diarrhea, unspecified

    Which procedures does Dr. Grinnen perform as a Internist?

    As a Internist, procedures performed by an Dr. Kathryn Grinnen may include:

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

    Does Dr. Grinnen accept my insurance?

    Dr. Grinnen accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Grinnen accept in Rehoboth Beach, DE?

    Dr. Grinnen in Rehoboth Beach, 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

    • BCBS Unspecified

    • Carefirst BlueCross BlueShield

    • Cigna

    • CVS Health (formerly Aetna)

    • Department of Defense / Tricare

    • Highmark Inc.

    • Medicare

    • State of Delaware

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Grinnen's office located?

    Dr. Kathryn Grinnen's Primary Practice

    19330 Lighthouse Plaza Blvd Unit 1

    Rehoboth Beach, DE 19971

    Get Directions

    Dr. Kathryn Grinnen's Practice 2

    1305 Savannah Rd Ste 1

    Lewes, DE 19958

    Get Directions

    Dr. Kathryn Grinnen's Practice 3

    16295 Willow Creek Rd

    Lewes, DE 19958

    (302) 645-3555

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

    Dr. Grinnen's National Provider Identifier (NPI) number is 1710102124.

    What common questions do patients ask about Dr. Grinnen?

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

    What is Dr. Kathryn Grinnen's specialty?

    Dr. Grinnen is a Internist near Rehoboth Beach, 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. Grinnen to book an appointment today.

    Is this Dr. Kathryn Grinnen affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Grinnen is affiliated with Beebe Healthcare 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 Kathryn Grinnen accepting new patients in Rehoboth Beach, DE?

    Yes, Dr. Kathryn Grinnen is accepting new patients at this time.

    Does Dr. Kathryn Grinnen offer online booking?

    Please contact Dr. Grinnen's office for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Kathryn Grinnen?

    Please contact Dr. Grinnen's office for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Kathryn Grinnen have?

    Dr. Kathryn Grinnen is certified by the American Board of Internal Medicine.

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