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Dr. Nicholas Lillo, MD
Gastroenterology* Age 45
Dr. Nicholas Lillo, MD
5.0 (1 Ratings)

Offers telehealth

Dr. Nicholas Lillo, MD is a Gastroenterologist in Fairfield, CT.
Dr. Nicholas Lillo, MD
5.0 (1 Ratings)

Dr. Nicholas Lillo, MD

Gastroenterology* Age 45
Fairfield, CT
Accepting new patients

Offers telehealth

Dr. Nicholas Lillo, MD is a Gastroenterologist in Fairfield, CT.

About Dr. Nicholas Lillo, MD

Dr. Lillo graduated from State University of New York Downstate Health Sciences University College of Medicine. Dr. Nicholas Lillo, MD is a Gastroenterologist in Fairfield, CT. Dr. Lillo has experience treating conditions like Irritable Bowel Syndrome, Intestinal Diverticulitis, Constipation, Hemorrhoids, Gastritis, Diarrhea, Celiac Disease, Gastroesophageal Reflux Disease (GERD), Abdominal Pain, Intestinal Diverticulosis, Nausea, Diaphragmatic and Hiatal Hernia and Inflammatory Bowel Disease among other conditions at varying frequencies. Dr. Lillo's office accepts new patients and telehealth appointments. Dr. Lillo is board certified in Gastroenterology and accepts multiple insurance plans.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Low Wait Times

Patients are usually seen in 10 minutes or less.

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Experience Check

Enter a condition or procedure
Irritable Bowel Syndrome
Intestinal Diverticulitis
Constipation
Irritable Bowel Syndrome
Intestinal Diverticulitis
Constipation
Hemorrhoids
Gastritis
Diarrhea
  • View other providers who treat Diarrhea
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Celiac Disease
Gastroesophageal Reflux Disease (GERD)
Abdominal Pain
Intestinal Diverticulosis
Nausea
  • View other providers who treat Nausea
Diaphragmatic and Hiatal Hernia
Inflammatory Bowel Disease
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Intestinal Ulcer
Duodenal Polypectomy
Gastrointestinal Bleeding
Ulcerative Colitis
Dysphagia
Colorectal Polyp
Endoscopy
Peptic Ulcer
Colonoscopy
Gastrointestinal Malabsorption
Anal or Rectal Pain
Rigid Proctosigmoidoscopy
Manometry
Flexible Sigmoidoscopy
Esophagitis
Crohn's Disease
Gas-Bloat Syndrome
Dysentery
Barrett's Esophagus
Reflux Esophagitis
Unexplained Weight Loss
Anemia
  • View other providers who treat Anemia
Noninfectious Gastroenteritis and Colitis
Infectious Diarrheal Disease
Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD)
Vomiting Disorders
Diffuse Esophageal Spasm
Duodenitis
Cirrhosis
Autoimmune Hepatitis
Liver Damage from Alcohol
Eosinophilic Esophagitis
Viral Enteritis
Esophageal Motility Disorders
Esophageal Varices
Gallstones
Intestinal Obstruction
Chronic Gastritis
Gastroptosis
Colon Cancer
Alcoholic Cirrhosis
Gastroparesis
Gastric Ulcer
Hypokalemia
Pancreatitis
Enteritis
Familial Adenomatous Polyposis
Acute Gastritis
All Types of Food Poisoning
Ascites
  • View other providers who treat Ascites
Barretts Esophagus with Dysplasia
Benign Neoplasm of the Digestive System
Bile Duct Obstruction
Biliary Cirrhosis
Boerhaave's Syndrome
Bowel Strangulation
Cholangitis
Congenital Anomaly Esophagus
Congenital Anomaly Intestine
Cyclical Vomiting
Dehydration
Duodenal Cancer
Duodenal Ulcer
Ehlers-Danlos Syndrome
Esophageal Achalasia and Cardiospasm
Esophageal Atresia Without Fistula
Esophageal Diverticulum
Esophageal Ulcer
Food Allergy
Food Poisoning
Gastrojejunal Ulcer
Heartburn
Hepatitis B
Hepatitis B - Immune Response
Hepatitis C
Hernia
  • View other providers who treat Hernia
Hiatal Hernia
Ileus
  • View other providers who treat Ileus
Indigestion
Intestinal Prolapse
Ischemic Colitis
Lactose Intolerance
Liver Abscess
Long COVID Disorder
Mallory-Weiss Syndrome
Malnutrition
Megacolon
Neoplasm of Gastrointestinal Tract
Non-Neonatal Jaundice
Pancreatic Pseudocyst
Pernicious Anemia
Pouchitis
Primary Biliary Cholangitis
Primary Sclerosing Cholangitis
Proctoptosis
Pyloric Stenosis
Rectal Prolapse
Rectal Ulcer
Retroperitoneum Cancer
Sclerosing Mesenteritis
Splenomegaly
Toxic Megacolon
Upper Digestive Tract Cancer
Vitamin B12 Anemia
Vitamin_Deficiency
Colon Cancer Screening
Colorectal Cancer Screening
Fecal Impaction Removal
Gallbladder Scan
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
Sigmoidoscopy
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • BlueCard PPO
  • HealthyBlue Advantage
  • Choice Plus POS II
    Select
    APCN Choice POS II
    Open Choice PPO
    Premier Care Network Plus - Innovation Health
    Aetna HMO
    Managed Choice (Open Access) POS
    Elect Choice (Open Access) EPO
  • Choice Plus POS
    Navigate Plus POS
    Navigate HMO
    Options PPO
  • Cigna PPO
    Cigna HMO
    Open Access Plus
  • MVP Health Plan EPO
  • Century Preferred-CT PPO
    BlueCare - CT HMO
    Pathway X Enhanced (Ind -)-CT HMO
  • Liberty
    Freedom
  • SimplyBlue/Simply Blue Plus PPO

Where Dr. Nicholas Lillo, MD Sees Patients

  1. 1 Gastroenterology Associates of Fairfield P C
    425 Post Rd, Fairfield, CT 06824
  2. 2 Robert D. Russo MD and Associa
    2660 Main St, Bridgeport, CT 06606
  3. 3 Connecticut GI PLLC
    85 Seymour St Ste 1000, Hartford, CT 06106
    Monday
    09:00 - 16:30
    Tuesday
    09:00 - 16:30
    Wednesday
    09:00 - 16:30
    Thursday
    09:00 - 16:30
    Friday
    09:00 - 16:30
  4. 4 Office
    115 Technology Dr Unit B201, Trumbull, CT 06611

What Patients Say

Likelihood to recommend Dr. Lillo
5.0
Based on 1 Reviews
5 Stars (1)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (0)

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Patient Reviews
Aug 04, 2025
I have been seeing Dr Lillo for over 6 years and he is one of my favorite doctors of all the different practitioners I see. I trust his diagnoses and advice. He takes as much time as I need to talk through issues, causes, and treatments. He has helped me work through significant issues without the need for surgery. He’s the type of doctor that so many others should aspire to be like.
— Aug 04, 2025
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Telehealth Options
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(203) 292-9000

Meet Dr. Nicholas Lillo, MD

Specialties*
Gastroenterology
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.
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Lillo communicate via email?
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Does Dr. Lillo offer telehealth services or virtual visits?
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Does Dr. Lillo offer an online patient portal?
1 user said yes.
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Does Dr. Lillo have free onsite parking?
1 user said yes.
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Does Dr. Lillo offer evening visits?
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Does Dr. Lillo specialize in working with children or adolescents?
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Does Dr. Lillo specialize in working with seniors?
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Does Dr. Lillo specialize in couples therapy?
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Does Dr. Lillo specialize in working with LGBTQ+ community?
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FAQs About Dr. Lillo's Practice

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. Nicholas Lillo, MD. To arrange an appointment, call the number on Dr. Lillo's profile.

Dr. Lillo frequently treats the following conditions: Irritable Bowel Syndrome, Intestinal Diverticulitis, Constipation, Hemorrhoids, Gastritis, Diarrhea, Celiac Disease, Gastroesophageal Reflux Disease (GERD), Abdominal Pain, Intestinal Diverticulosis, Nausea, Diaphragmatic and Hiatal Hernia and Inflammatory Bowel Disease. See more on Sharecare.

Dr. Nicholas Lillo, MD is affiliated with Saint Vincent's Medical Center.

Yes, Dr. Nicholas Lillo, MD holds board certification in Gastroenterology.

Training & Medical Education
Medical Education
  • State University of New York Downstate Health Sciences University College of Medicine
Medical Education
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.

Hospitals Where Dr. Nicholas Lillo, MD Practices

  • Saint Vincent's Medical Center

    2800 Main St, Bridgeport, CT

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