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Dr. Daniel O'Brien, MD

Gastroenterology* Age 42
Dr. Daniel O'Brien, MD
3.6 (13 Ratings)

Offers telehealth

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Dr. Daniel O'Brien, MD is a Gastroenterologist in Danbury, CT.
Dr. Daniel O'Brien, MD
3.6 (13 Ratings)
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Dr. Daniel O'Brien, MD

Gastroenterology* Age 42
Danbury, CT
Accepting new patients
16 years of experience

Offers telehealth

Dr. Daniel O'Brien, MD is a Gastroenterologist in Danbury, CT.

About

Dr. O'Brien graduated from State University of New York Downstate Health Sciences University College of Medicine. Dr. Daniel O'Brien, MD is a Gastroenterologist in Danbury, CT and has 16 years experience. Dr. O'Brien currently practices at Practice and are affiliated with Danbury Hospital and Putnam Hospital Center. Dr. O'Brien has experience treating conditions like Anal or Rectal Pain among other conditions at varying frequencies. At present, Dr. O'Brien received an average rating of 3.6/5 from patients and has been reviewed 13 times. Dr. O'Brien's office accepts new patients and telehealth appointments. Dr. O'Brien is board certified in Gastroenterology and accepts multiple insurance plans.

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Experience Check

Enter a condition or procedure
Anal or Rectal Pain
Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
Anal or Rectal Pain
Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
Anal or Rectal Pain
Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
Abdominal Pain
Anemia
  • View other providers who treat Anemia
Barrett's Esophagus
Chronic Gastritis
Colorectal Polyp
Congenital Anomaly Intestine
Constipation
Crohn's Disease
Diaphragmatic and Hiatal Hernia
Diarrhea
  • View other providers who treat Diarrhea
Duodenal Ulcer
Duodenitis
Dysphagia
Enteritis
Esophageal Motility Disorders
Esophagitis
Gallstones
Gas-Bloat Syndrome
Gastric Ulcer
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastrointestinal Bleeding
Gastroptosis
Heartburn
Hemorrhoids
Inflammatory Bowel Disease
Intestinal Diverticulosis
Intestinal Ulcer
Irritable Bowel Syndrome
Nausea
  • View other providers who treat Nausea
Reflux Esophagitis
Tobacco Use Disorder
Unexplained Weight Loss
Vitamin_Deficiency
Vomiting Disorders
Arterial Blood Gas Test (ABG)
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Duodenal Polypectomy
Electrocardiogram (EKG)
Flexible Sigmoidoscopy
Manometry
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Rigid Proctosigmoidoscopy
Acidosis
  • View other providers who treat Acidosis
Acute Deep Vein Thrombosis (DVT)
Acute Pharyngitis
Acute Upper Respiratory Infection
Acute Venous Embolism Thrombosis
ADHD and-or ADD
Alcoholic Fatty Liver
Alkalosis
All Headaches (incl. Migraine)
All Types of Food Poisoning
Anxiety
  • View other providers who treat Anxiety
Arthritis
Arthritis of the Elbow
Ascites
  • View other providers who treat Ascites
Asphyxia and Hypoxemia
Asthma
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Atherosclerosis
Back Pain
Barretts Esophagus with Dysplasia
Bedsores
  • View other providers who treat Bedsores
Benign Neoplasm of the Digestive System
Bile Duct Obstruction
Blood in Urine (Hematuria)
Bronchiectasis
Cachexia
  • View other providers who treat Cachexia
Candidiasis of Skin and Nails
Celiac Disease
Chest Pain
Cholangitis
Chronic Neck Pain
Chronic Pain
Chronic Sinusitis
Cirrhosis
Colon Cancer
Colon Disorders
Congenital Anomaly Esophagus
COPD (Chronic Obstructive Pulmonary Disease)
Cough
  • View other providers who treat Cough
Deep Vein Thrombosis (DVT)
Dehydration
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Polyneuropathy
Difficulty With Walking
Diffuse Esophageal Spasm
Dizziness
Down Syndrome
Dry Eyes
  • View other providers who treat Dry Eyes
Dry Skin
  • View other providers who treat Dry Skin
Duodenal Cancer
Dysentery
Dyslipidemia
E. coli Food Poisoning
Eczema and Contact Dermatitis
Emphysema
Enlarged Prostate (BPH)
Eosinophilic Esophagitis
Esophageal Achalasia and Cardiospasm
Esophageal Ulcer
Esophageal Varices
Familial Adenomatous Polyposis
Familial Hypercholesterolemia
Fever
  • View other providers who treat Fever
Fibromyalgia
Gait Abnormality
Gastrointestinal Malabsorption
Gastrojejunal Ulcer
Gastroparesis
Gout
  • View other providers who treat Gout
Headache
  • View other providers who treat Headache
Heart Disease
Hemochromatosis
Hepatitis B - Immune Response
Hepatitis C
Hernia
  • View other providers who treat Hernia
Hiatal Hernia
Hidradenitis
Human Immunodeficiency Virus (HIV)
Hyperkalemia
Hyperlipidemia
Hypertension
Hypokalemia
Hypotension
Hypotension (Excluding Maternal)
Hypothyroidism
Hypoxemia
Indigestion
Infectious Diarrheal Disease
Intestinal Diverticulitis
Intestinal Obstruction
Intestinal Prolapse
Ischemic Colitis
Itchy Skin
Joint Pain
Lactose Intolerance
Leg and Foot Ulcers
Limb Swelling
Lipid Disorders
Liver Damage from Alcohol
Low Back Pain
Malaise and Fatigue
Mallory-Weiss Syndrome
Malnutrition
Menstrual Disorders
Migraine
  • View other providers who treat Migraine
Neoplasm of Gastrointestinal Tract
Non-Neonatal Jaundice
Obesity
  • View other providers who treat Obesity
Osteoarthritis
Osteoarthritis of Foot
Osteoarthritis of Shoulder
Osteoarthritis of Spine
Osteopenia
Osteoporosis
Overweight
Painful Urination (Dysuria)
Pancreatitis
Peptic Ulcer
Peripheral Nerve Disorders
Pharyngitis
Polyneuropathy
Polyuria
  • View other providers who treat Polyuria
Pouchitis
Primary Biliary Cholangitis
Proctoptosis
Pyloric Stenosis
Rash
  • View other providers who treat Rash
Rectal Prolapse
Rectal Ulcer
Restless Leg Syndrome
Retroperitoneum Cancer
Sexually Transmitted Diseases (STDs)
Shortness of Breath
Sinus Bradycardia
Sinus Tachycardia
Sinusitis
Sleep Apnea
Splenomegaly
Stomach Stenosis
Stomal Ulcer
Thyroid Goiter
Ulcerative Colitis
Upper Digestive Tract Cancer
Urinary Incontinence
Urinary Tract Infection (UTI)
Venous Embolism and Thrombosis
Venous Insufficiency
Vertigo
  • View other providers who treat Vertigo
Viral Hepatitis
Vitamin B Deficiency
Vitamin B12 Deficiency
Vitamin D Deficiency
Wheezing
  • View other providers who treat Wheezing
Anoscopy
  • View other providers who treat Anoscopy
Colon Cancer Screening
Colonoscopy
Colorectal Cancer Screening
Diabetes Counseling
Endoscopy
Fecal Occult Blood Test for Colorectal Cancer
Gallbladder Scan
Hemorrhoidectomy or Excision of Anal Tags
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Biopsy
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Screening Colonoscopy
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Medicaid
  • MultiPlan PPO
  • Oxford Health Plans
  • MagnaCare
  • Medicare
  • Aetna
  • HealthyBlue 2.0
  • Harvard Pilgrim Health Care PPO
  • Connecticare
  • Choice Care PPO
  • Curative PPO
    Curative EPO
    Curative PPO Plus
  • Empire Blue Cross Blue Shield
  • Blue Cross and Blue Shield
  • Cigna
  • First Health (Coventry Health Care)
  • United Healthcare
  • Catastrophic Pathway X Enhanced-CT HMO

Locations

  1. 1 Danbury Hospital Medical Arts Center (Dhmac)
    111 Osborne St, Danbury, CT 06810
    Icon Directions Right Arrow Directions Phone Icon (203) 739-7038
  2. 2 Nuvance Health Medical Practice Pc-Carmel Ny
    150 Route 52, Carmel, NY 10512
    Icon Directions Right Arrow Directions Phone Icon (203) 739-7038
  3. 3 Danbury Hospital
    24 Hospital Ave, Danbury, CT 06810
    Icon Directions Right Arrow Directions Phone Icon (203) 739-7038
  4. 4 Office
    73 Sand Pit Rd, Danbury, CT 06810
    Icon Directions Right Arrow Directions Phone Icon (203) 743-2400
  5. 5 Putnam Hospital
    670 Stoneleigh Ave, Carmel, NY 10512
    Icon Directions Right Arrow Directions Phone Icon (845) 278-5683

Patient Satisfaction

Likelihood to recommend Dr. O'Brien
3.6
Based on 13 Reviews
5 Stars (7)
4 Stars (1)
3 Stars (1)
2 Stars (1)
1 Star (3)

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Patient Reviews
Jun 29, 2022
He’s ok . Nothing better or worse then others. The MA says oh you’re hear for reflux. Never had heartburn issue, but hey whatever. I find my own ways to feel better. Unless things are straight forward, doctors never take time to investigate.
G — Jun 29, 2022
See more reviews on Healthgrades
Photo: Dr. Daniel O'Brien, MD
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Dr. O'Brien's Office & Staff

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Experience with Dr. O'Brien

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Telehealth Options
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(203) 739-7038

About Me

Specialties*
Gastroenterology
Internal Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Education

Medical Education
  • State University of New York Downstate Health Sciences University College of Medicine
    2008
Medical Education

Board Certifications

Board Certifications
  • Gastroenterology
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

Fellowship

Fellowship Hospital
  • SUNY Downstate
Fellowship Hospital
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. O'Brien communicate via email?
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Does Dr. O'Brien offer telehealth services or virtual visits?
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Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Daniel O'Brien, MD. To arrange an appointment, call the number on Dr. O'Brien's profile.

Dr. Daniel O'Brien, MD is affiliated with Danbury Hospital and Putnam Hospital Center.

Yes, Dr. Daniel O'Brien, MD holds board certification in Gastroenterology.

Hospital Affiliations

  • Danbury Hospital

    24 Hospital Ave, Danbury, CT

  • Putnam Hospital Center

    670 Stoneleigh Ave, Carmel, NY