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Dr. John Chretien, MD

Emergency Medicine Specialist

Nashua, NH

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Chretien, Emergency Medicine Specialist in Nashua, NH?

    Dr. John Chretien, MD is an Emergency Medicine Specialist, who primarily practices in Nashua, NH. He is board certified. Dr. Chretien graduated from Texas A&M University and completed his residency at Univ Hosp-Suny Stony Brook, Emergency Medicine. Dr. Chretien is fluent in English, and is currently seeing new patients. Dr. Chretien’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Chretien’s office at (603) 577-2500.

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

    • Residency: Univ Hosp-Suny Stony Brook, Emergency Medicine | University Hospital - SUNY at Stony Brook Program

    • Medical School: University of Tx Med Branch Galveston, Galveston Tx | Texas A&M University

    Is Dr. Chretien board certified as an Emergency Medicine Specialist?

    Yes, Dr. John Chretien, MD is board certified by the American Board of Emergency Medicine

    What languages does Dr. Chretien speak?

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

    • English

    What conditions does an Emergency Medicine Specialist like Dr. Chretien typically treat?

    As an Emergency Medicine Specialist, Dr. Chretien 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. Chretien. 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:

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

    ICD-10 Codes:

    • R0789: Other chest pain

    Also known as:

    • Nausea and Vomiting
    • Feeling Sick and Throwing Up
    • Stomach Flu Symptoms
    • Queasy and Vomiting

    ICD-10 Codes:

    • R112: Nausea with vomiting, unspecified

    Also known as:

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

    ICD-10 Codes:

    • R109: Unspecified abdominal pain

    Also known as:

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

    ICD-10 Codes:

    • J069: Acute upper respiratory infection, unspecified

    Also known as:

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

    ICD-10 Codes:

    • R079: Chest pain, 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:

    • Viral Infection
    • Virus Infection
    • Viral Illness
    • Common Virus

    ICD-10 Codes:

    • B349: Viral infection, unspecified

    Also known as:

    • Headache
    • Head pain
    • Cephalalgia
    • Tension headache

    ICD-10 Codes:

    • R519: Headache, unspecified

    What procedures does an Emergency Medicine Specialist like Dr. Chretien typically perform?

    As an Emergency Medicine Specialist, procedures performed by Dr. John Chretien may include:

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

    Does Dr. Chretien accept my insurance?

    Dr. Chretien accepts most major insurance plans. Important: Please call our office at (603) 577-2500 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Chretien accept in Nashua, NH?

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

    Top Insurances

    • Cigna Group

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Federal government of the United States

    • Humana

    • Medicare

    • Sentara Health System / Optima Health

    • State of Virginia

    • UMR Administered Payer

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Chretien's office located?

    Dr. John Chretien's Primary Practice

    8 Prospect St

    Nashua, NH 03060

    (603) 577-2500

    Get Directions

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

    Dr. Chretien's National Provider Identifier (NPI) number is 1841390556.

    What common questions do patients ask about Dr. Chretien?

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

    What is Dr. John Chretien's specialty?

    Dr. Chretien is an Emergency Medicine Specialist near Nashua, NH.

    What does an Emergency Medicine Specialist do?

    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.

    Is Dr. John Chretien affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Chretien is affiliated with Sovah Health - Danville, Sentara Rmh Medical Center, Uva University Hospital, Twin County Regional Healthcare, Johnston-Willis Hospital, Sentara Obici Hospital 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 an Emergency Medicine Specialist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Emergency 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 Dr. John Chretien accepting new patients in Nashua, NH?

    Yes, Dr. John Chretien is accepting new patients at this time.

    Does Dr. John Chretien offer online booking?

    Please contact Dr. Chretien's office at (603) 577-2500 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. John Chretien?

    Please contact Dr. Chretien's office at (603) 577-2500 to schedule an appointment.

    Where is Dr. Chretien's office located?

    Dr. Chretien's office is located in Nashua, NH.

    Which board certifications does Dr. John Chretien have?

    Dr. John Chretien is certified by the American Board of Emergency Medicine.