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Dr. Nathan Ayer, MD

Dr. Nathan Ayer, MD

Castle Rock, CO

18 Years of Experience

Accepting patients

    Who is Dr. Ayer, Internist in Castle Rock, CO?

    Dr. Nathan Ayer, MD is an Internist, who primarily practices in Castle Rock, CO with 2 additional practice locations. He has been practicing for over 18 years and is board certified. Dr. Ayer completed his residency at University of Vermont/Fletcher Allen Health Care. Dr. Ayer is fluent in English and Spanish, and is currently seeing new patients. Dr. Ayer’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ayer’s office at (970) 203-7050.

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

    • Residency: University of Vermont/Fletcher Allen Health Care

    Is Dr. Ayer board certified as an Internist?

    Yes, Dr. Nathan Ayer, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Ayer speak?

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

    • English

    • Spanish

    What conditions does an Internist like Dr. Ayer typically treat?

    As an Internist, Dr. Ayer 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. Ayer. 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. Learn more about our claims-based healthcare methodology.

    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:

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

    ICD-10 Codes:

    • Z5181: Encounter for therapeutic drug level monitoring

    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:

    • Osteoarthritis of the right shoulder
    • Osteoarthritis
    • Degenerative joint disease
    • Wear-and-tear arthritis
    • Arthrosis
    • Joint degeneration

    ICD-10 Codes:

    • M19011: Primary osteoarthritis, right shoulder

    Also known as:

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

    ICD-10 Codes:

    • G9341: Metabolic encephalopathy

    Also known as:

    • High Cholesterol
    • Cholesterol
    • Hypercholesterolemia
    • High blood cholesterol
    • Elevated cholesterol

    ICD-10 Codes:

    • E7800: Pure hypercholesterolemia, unspecified

    Also known as:

    • Progressive Supranuclear Palsy
    • PSP
    • Steele-Richardson-Olszewski Syndrome
    • Progressive Supranuclear Ophthalmoplegia

    ICD-10 Codes:

    • G231: Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]

    What procedures does an Internist like Dr. Ayer typically perform?

    As an Internist, procedures performed by Dr. Nathan Ayer may include:

    Please contact Dr. Ayer's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.

    Does Dr. Ayer accept my insurance?

    Dr. Ayer accepts most major insurance plans. Important: Please call our office at (970) 203-7050 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Ayer accept in Castle Rock, CO?

    Dr. Ayer in Castle Rock, CO accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Blue Cross Blue Shield Association

    • Blue Cross Blue Shield of Michigan

    • Cigna Group

    • Elevance Health Inc. (formerly Anthem)

    • Humana

    • Intermountain Health

    • Medicare

    • UnitedHealth Group

    • Unknown

    View All Insurances

    Where is Dr. Ayer's office located?

    Dr. Nathan Ayer's Primary Practice

    4404 Barranca Ln Unit 101

    Castle Rock, CO 80104

    (970) 203-7050

    Get Directions

    North Medical Office Building

    2500 Rocky Mountain Ave Ofc

    Loveland, CO 80538

    Get Directions

    Dr. Nathan Ayer's Practice 3

    11083 Colorado Blvd

    Firestone, CO 80504

    Get Directions

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

    Dr. Ayer's National Provider Identifier (NPI) number is 1457361172.

    What common questions do patients ask about Dr. Ayer?

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

    What is Dr. Nathan Ayer's specialty?

    Dr. Ayer is a Internist near Castle Rock, CO.

    What does an Internist do?

    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.

    Is this Dr. Nathan Ayer affiliated with a ranked Castle Connolly Top Hospital?

    No, Ayer is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Uchealth Medical Center Of The Rockies, East Morgan County Hospital, Banner Mckee Medical Center, Uchealth Poudre Valley Hospital, Uchealth Greeley Hospital, Uchealth Poudre Valley Hospital. Castle Connolly Top Hospitals 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

    When to see an Internist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Internist. Explore 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 Nathan Ayer accepting new patients in Castle Rock, CO?

    Yes, Dr. Nathan Ayer is accepting new patients at this time.

    Does Dr. Nathan Ayer offer online booking?

    Please contact Dr. Ayer's office at (970) 203-7050 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Nathan Ayer?

    Please contact Dr. Ayer's office at (970) 203-7050 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Nathan Ayer have?

    Dr. Nathan Ayer is certified by the American Board of Internal Medicine.

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