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Dr. Brian Regan, DO

Boston, MA

18 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Regan, Pediatric Gastroenterologist in Boston, MA?

    Dr. Brian Regan, DO is a Pediatric Gastroenterologist, who primarily practices in Boston, MA with 2 additional practice locations. He has been practicing for over 18 years and is board certified by the American Board of Pediatrics. Dr. Regan graduated from New York College Of Osteopathic Medicine. Dr. Regan is fluent in English, Chinese, and Spanish, and is currently seeing new patients. Dr. Regan’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Regan’s office at (617) 355-6000.

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

    • Medical School: New York Institute of Technology College of Osteopathic Medicine | New York College Of Osteopathic Medicine | New York College Of Osteopathic Medicine

    Is Dr. Regan board certified in Pediatric Gastroenterologist?

    Yes, Dr. Brian Regan, DO is board certified by the American Board of Pediatrics

    What languages does Dr. Regan speak?

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

    • Chinese

    • English

    • Spanish

    What conditions does Dr. Regan treat?

    As a Pediatric Gastroenterologist, Dr. Regan 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. Regan. 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:

    • Abdominal Pain
    • Widespread Abdominal Pain
    • Stomach Ache
    • Belly Pain
    • Stomach Pain
    • General stomach pain
    • Overall belly pain
    • Diffuse abdominal pain

    ICD-10 Codes:

    • R109: Unspecified abdominal pain
    • R1084: Generalized abdominal pain

    Also known as:

    • Constipation
    • Chronic Idiopathic Constipation
    • Difficulty Passing Stool
    • Infrequent Bowel Movements
    • Hard Stools
    • Functional Constipation
    • Unexplained Chronic Constipation
    • Long-Term Constipation

    ICD-10 Codes:

    • K5900: Constipation, unspecified
    • K5909: Other constipation
    • K5904: Chronic idiopathic constipation

    Also known as:

    • Crohn's Disease
    • Crohn's Disease Affecting Small and Large Intestines
    • Crohn’s Disease
    • Regional Enteritis
    • Inflammatory Bowel Disease (IBD)
    • Terminal Ileitis
    • Panenteric Crohn's Disease
    • Crohn's of Both Bowels', 'Generalized Crohn's Disease

    ICD-10 Codes:

    • K5090: Crohn's disease, unspecified, without complications
    • K5080: Crohn's disease of both small and large intestine without complications

    Also known as:

    • Vomiting
    • Nausea and Vomiting
    • Throwing up
    • Emesis
    • Puking

    ICD-10 Codes:

    • R1110: Vomiting, unspecified

    Also known as:

    • Failure to Thrive in Children
    • Growth Disorder
    • Poor growth in children
    • Childhood growth problems
    • Infant growth failure

    ICD-10 Codes:

    • R6251: Failure to thrive (child)

    Also known as:

    • Acid Reflux
    • GERD
    • Acid Reflux (GER & GERD) in Adults
    • Acid Reflux (GER & GERD) in Children
    • Acid Reflux (GER & GERD) in Infants
    • Gastroesophageal Reflux
    • Heartburn
    • Indigestion

    ICD-10 Codes:

    • K219: Gastro-esophageal reflux disease without esophagitis

    Also known as:

    • Feeding Difficulties
    • Eating Problems
    • Swallowing Problems
    • Unspecified Feeding Issues

    ICD-10 Codes:

    • R6330: Feeding difficulties, unspecified

    Also known as:

    • Celiac Disease
    • Gluten-Sensitive Enteropathy
    • Sprue
    • Coeliac Disease
    • Gluten Intolerance

    ICD-10 Codes:

    • K900: Celiac disease

    Also known as:

    • Dark, Tarry Stools (Melena)
    • Gastrointestinal Bleeding
    • Melena
    • Black Stools
    • Upper GI Bleed Signs

    ICD-10 Codes:

    • K921: Melena

    Also known as:

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

    ICD-10 Codes:

    • R197: Diarrhea, unspecified

    Also known as:

    • Difficulty Swallowing
    • Swallowing Disorder
    • Dysphagia
    • Trouble swallowing
    • Painful swallowing

    ICD-10 Codes:

    • R1310: Dysphagia, unspecified

    Also known as:

    • Ulcerative Colitis
    • Colitis
    • Inflammatory Bowel Disease (IBD)
    • Chronic Colitis

    ICD-10 Codes:

    • K5190: Ulcerative colitis, unspecified, without complications

    Also known as:

    • Eosinophilic Esophagitis
    • EoE
    • Allergic Esophagitis
    • Eosinophilic Inflammation of Esophagus

    ICD-10 Codes:

    • K200: Eosinophilic esophagitis

    Also known as:

    • Esophagitis
    • Esophagus Disorder
    • Inflammation of the Esophagus
    • Sore Esophagus
    • Esophageal Inflammation

    ICD-10 Codes:

    • K2090: Esophagitis, unspecified without bleeding

    Also known as:

    • Abnormal Bowel Movements
    • Bowel Movement
    • Unusual stool
    • Changes in poop
    • Fecal changes

    ICD-10 Codes:

    • R195: Other fecal abnormalities

    Also known as:

    • Unexplained Weight Loss
    • Involuntary Weight Loss
    • Significant Weight Loss
    • Unintentional Weight Loss

    ICD-10 Codes:

    • R634: Abnormal weight loss

    Which procedures does Dr. Regan perform as a Pediatric Gastroenterologist?

    Does Dr. Regan accept my insurance?

    Dr. Regan accepts most major insurance plans. Important: Please call our office at (617) 355-6000 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Regan accept in Boston, MA?

    Dr. Regan in Boston, MA 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 of Massachusetts

    • Boston Medical Center

    • CVS Health (formerly Aetna)

    • Express Scripts

    • Fallon Community Health Plan

    • Health Plans

    • Point32Health

    • State of Massachusetts

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Regan's office located?

    Dr. Brian Regan's Primary Practice

    300 Longwood Ave # 3446

    Boston, MA 02115

    (617) 355-6000

    Get Directions

    Dr. Brian Regan's Practice 2

    750 Washington St Fl 2

    Boston, MA 02111

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    Dr. Brian Regan's Practice 3

    14 Prospect St

    Milford, MA 01757

    Get Directions

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

    Dr. Regan's National Provider Identifier (NPI) number is 1235279183.

    What common questions do patients ask about Dr. Regan?

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

    What is Dr. Brian Regan's specialty?

    Dr. Regan is a Pediatric Gastroenterologist near Boston, MA. A pediatrician specializing in diagnosing and treating digestive system diseases in infants, children, and adolescents. This expert manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice and is skilled in performing complex diagnostic and therapeutic procedures using endoscopic techniques to visualize internal organs. Contact Dr. Regan to book an appointment today.

    Is this Dr. Brian Regan affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Regan is affiliated with Tufts Medical Center 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 Pediatric Gastroenterologist?

    Explore Pediatric Gastroenterologist 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 Brian Regan accepting new patients in Boston, MA?

    Yes, Dr. Brian Regan is accepting new patients at this time.

    Does Dr. Brian Regan offer online booking?

    Please contact Dr. Regan's office at (617) 355-6000 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Brian Regan?

    Please contact Dr. Regan's office at (617) 355-6000 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Brian Regan have?

    Dr. Brian Regan is certified by the American Board of Pediatrics.

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