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Dr. Thayer Phelan, MD

Fort Collins, CO

Accepting patients

    Who is Dr. Phelan, Emergency Medicine Specialist in Fort Collins, CO?

    Dr. Thayer Phelan, MD is an Emergency Medicine Specialist, who primarily practices in Fort Collins, CO with 2 additional practice locations. She is board certified. Dr. Phelan is fluent in English, and is currently seeing new patients. Dr. Phelan’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Phelan’s office at (970) 204-0300.

    What languages does Dr. Phelan speak?

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

    • English

    What conditions does Dr. Phelan treat?

    As a Emergency Medicine Specialist, Dr. Phelan 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. Phelan. 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:

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

    ICD-10 Codes:

    • J069: Acute upper respiratory infection, unspecified

    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:

    • Strep Throat
    • Sore Throat
    • Streptococcal Infection
    • Bacterial Sore Throat
    • Pharyngitis
    • Strep Infection
    • Acute pharyngitis
    • Throat inflammation
    • Acute throat infection

    ICD-10 Codes:

    • J020: Streptococcal pharyngitis
    • J029: Acute pharyngitis, unspecified

    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:

    • Chest Pain
    • Chest discomfort
    • Thoracic pain
    • Upper body pain

    ICD-10 Codes:

    • R079: Chest pain, unspecified

    Also known as:

    • Other Health Condition
    • Unspecified Health Issue
    • General Health Concern
    • Other Medical Condition

    ICD-10 Codes:

    • Z789: Other specified health status

    Also known as:

    • Chest Pain
    • Chest discomfort
    • Thoracic pain
    • Pectoral pain

    ICD-10 Codes:

    • R0789: Other chest pain

    Also known as:

    • Headache
    • Head pain
    • Cephalalgia
    • Tension headache

    ICD-10 Codes:

    • R519: Headache, unspecified

    Also known as:

    • Flu with Respiratory Symptoms
    • Flu
    • Influenza with Breathing Problems
    • Flu with Cough
    • Severe Flu

    ICD-10 Codes:

    • J101: Influenza due to other identified influenza virus with other respiratory manifestations

    Also known as:

    • Exposure to COVID-19
    • COVID-19 (Coronavirus Disease 2019)
    • COVID-19 contact
    • Suspected coronavirus exposure
    • SARS-CoV-2 exposure

    ICD-10 Codes:

    • Z20822: Contact with and (suspected) exposure to COVID-19

    Also known as:

    • Suicidal Thoughts
    • Suicide
    • Suicidal ideation
    • Thoughts of ending life
    • Self-harm thoughts

    ICD-10 Codes:

    • R45851: Suicidal ideations

    Also known as:

    • Dizziness
    • Dizziness and Vertigo
    • Lightheadedness
    • Giddiness
    • Vertigo

    ICD-10 Codes:

    • R42: Dizziness and giddiness

    Also known as:

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

    ICD-10 Codes:

    • I4891: Unspecified atrial fibrillation

    Also known as:

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

    ICD-10 Codes:

    • R109: Unspecified abdominal pain

    Also known as:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

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

    ICD-10 Codes:

    • M5450: Low back pain, unspecified

    Also known as:

    • Fainting
    • Syncope
    • Passing out
    • Collapse

    ICD-10 Codes:

    • R55: Syncope and collapse

    Also known as:

    • Sinusitis
    • Sinus Infection
    • Rhinosinusitis
    • Acute Sinus Infection

    ICD-10 Codes:

    • J0190: Acute sinusitis, unspecified

    Also known as:

    • Nosebleed
    • Nose Injuries and Disorder
    • Epistaxis
    • Bleeding nose
    • Nasal hemorrhage

    ICD-10 Codes:

    • R040: Epistaxis

    Which procedures does Dr. Phelan perform as a Emergency Medicine Specialist?

    As a Emergency Medicine Specialist, procedures performed by an Dr. Thayer Phelan may include:

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

    Does Dr. Phelan accept my insurance?

    Dr. Phelan accepts most major insurance plans. Important: Please call our office at (970) 204-0300 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Phelan accept in Fort Collins, CO?

    Dr. Phelan in Fort Collins, 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

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Health Choice

    • Humana

    • IASIS Healthcare

    • Medicare

    • State of Arizona

    • State of Maine

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Phelan's office located?

    Dr. Thayer Phelan's Primary Practice

    3519 Richmond Dr

    Fort Collins, CO 80526

    (970) 204-0300

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    Dr. Thayer Phelan's Practice 2

    2000 Boise Ave

    Loveland, CO 80538

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    Dr. Thayer Phelan's Practice 3

    151 W Lake St Ste 1500

    Fort Collins, CO 80524

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

    Dr. Phelan's National Provider Identifier (NPI) number is 1821209354.

    What common questions do patients ask about Dr. Phelan?

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

    What is Dr. Thayer Phelan's specialty?

    Dr. Phelan is a Emergency Medicine Specialist near Fort Collins, CO. An emergency physician is dedicated to making prompt decision and taking necessary actions essential for preventing death or additional disabilities. This role encompasses guiding emergency medical technicians in pre-hospital environments as well as providing care within the emergency department. The emergency physician is responsible for the immediate identification, evaluation, treatment, stabilization, and arrangement of a diverse array of adult and pediatric patients facing acute illnesses and injuries. Contact Dr. Phelan to book an appointment today.

    Is this Dr. Thayer Phelan affiliated with a ranked Castle Connolly Top Hospital?

    No, Phelan is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Little Colorado Medical Center, Northern Light Maine Coast Hospital, Jacksonville Memorial 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

    Where can I learn more about Emergency Medicine Specialist?

    Explore Emergency Medicine Specialist 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 Thayer Phelan accepting new patients in Fort Collins, CO?

    Yes, Dr. Thayer Phelan is accepting new patients at this time.

    Does Dr. Thayer Phelan offer online booking?

    Please contact Dr. Phelan's office at (970) 204-0300 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Thayer Phelan?

    Please contact Dr. Phelan's office at (970) 204-0300 for information regarding telehealth appointment availability or for scheduling assistance.

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