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Dr. Katherine Gagan, MD

Plymouth, NH

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Gagan, Family Medicine Specialist in Plymouth, NH?

    Dr. Katherine Gagan, MD is a Family Medicine Specialist, who primarily practices in Plymouth, NH with 2 additional practice locations. Dr. Gagan is fluent in English, and is currently seeing new patients. Dr. Gagan’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Gagan’s office at (603) 536-4000.

    What languages does Dr. Gagan speak?

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

    • English

    What conditions does a Family Medicine Specialist like Dr. Gagan typically treat?

    As a Family Medicine Specialist, Dr. Gagan 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. Gagan. 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 here.

    Also known as:

    • Adult Health Checkup with Abnormal Findings
    • Health Checkup
    • Adult Physical Exam with Issues
    • Routine Checkup with Concerns
    • General Medical Exam with Abnormal Results

    ICD-10 Codes:

    • Z0001: Encounter for general adult medical examination with abnormal findings

    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:

    • Long-Term Blood Thinner Use
    • Blood Thinners
    • Chronic anticoagulant therapy
    • Ongoing blood thinner treatment
    • Anticoagulant medication use

    ICD-10 Codes:

    • Z7901: Long term (current) use of anticoagulants

    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:

    • 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:

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

    ICD-10 Codes:

    • Z23: Encounter for immunization

    Also known as:

    • Mixed High Cholesterol and Triglycerides
    • Cholesterol
    • Triglycerides
    • Mixed hyperlipidemia
    • Combined hyperlipidemia
    • High lipids

    ICD-10 Codes:

    • E782: Mixed hyperlipidemia

    Also known as:

    • Routine Child Health Examination (Normal Findings)
    • Health Checkup
    • Normal Well-Child Checkup
    • Child Physical Exam (No Issues)
    • Routine Pediatric Exam (Clear)

    ICD-10 Codes:

    • Z00129: Encounter for routine child health examination without abnormal findings

    What procedures does a Family Medicine Specialist like Dr. Gagan typically perform?

    As a Family Medicine Specialist, procedures performed by Dr. Katherine Gagan may include:

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

    Does Dr. Gagan accept my insurance?

    Dr. Gagan accepts most major insurance plans. Important: Please call our office at (603) 536-4000 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Gagan accept in Plymouth, NH?

    Dr. Gagan in Plymouth, NH accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • BMC Health System

    • Centene Corporation

    • Cigna Group

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Humana

    • Independence Health Group

    • Medicare

    • UnitedHealth Group

    • Unknown

    View All Insurances

    Where is Dr. Gagan's office located?

    Dr. Katherine Gagan's Primary Practice

    101 Boulder Point Dr Ste 1

    Plymouth, NH 03264

    (603) 536-4000

    Get Directions

    Dr. Katherine Gagan's Practice 2

    11 Whitehall Rd

    Rochester, NH 03867

    Get Directions

    Dr. Katherine Gagan's Practice 3

    426 Route 125

    Barrington, NH 03825

    Get Directions

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

    Dr. Gagan's National Provider Identifier (NPI) number is 1770148850.

    What common questions do patients ask about Dr. Gagan?

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

    What is Dr. Katherine Gagan's specialty?

    Dr. Gagan is a Family Medicine Specialist near Plymouth, NH.

    What does a Family Medicine Specialist do?

    Family Medicine is a medical specialty focused on comprehensive healthcare for individuals and families. It is a broad field that integrates biological, clinical, and behavioral sciences. The scope of family medicine covers all ages, genders, organ systems, and disease conditions, offering a holistic approach to patient care.

    Is this Dr. Katherine Gagan affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Gagan is affiliated with Speare Memorial Hospital, Concord Hospital – Laconia, Concord Hospital, Dartmouth Hitchcock Medical Center, New London Hospital, Adventhealth Tampa 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

    When to see a Family Medicine Specialist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Family Medicine Specialist. 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 Katherine Gagan accepting new patients in Plymouth, NH?

    Yes, Dr. Katherine Gagan is accepting new patients at this time.

    Does Dr. Katherine Gagan offer online booking?

    Please contact Dr. Gagan's office at (603) 536-4000 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Katherine Gagan?

    Please contact Dr. Gagan's office at (603) 536-4000 for information regarding telehealth appointment availability or for scheduling assistance.

    <section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>