Dr. Daniel N. Smiley, MD | Bristol, CT | Gastroenterologist

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Dr. Daniel Smiley specializes in gastroenterology, focusing on digestive system disorders and preventive care. He earned his medical degree from Rutgers New Jersey Medical School and completed his residency at Montefiore Medical Center. With 44 years of experience in gastroenterology, Dr. Smiley brings extensive knowledge to patient care. He is fluent in Spanish and Polish, allowing him to serve diverse communities.

Dr. Smiley is affiliated with Bristol Hospital Inc and practices in Bristol, Connecticut. He frequently treats patients with colon polyps, diverticular disease, and diverticulosis. His expertise includes performing colonoscopy procedures and lower GI endoscopy to diagnose and monitor digestive conditions. Dr. Smiley also utilizes pathology tests to provide comprehensive care for his patients. Patients rate him 4.1 out of 5 stars on average.

Overview based on verified provider data

accepting new patients
4.1

13 Ratings
44 years of experience
speaks Spanish, Polish
Montefiore Medical Center
5 written reviews
1 specialty
11 areas of expertise
1 board certification
1 hospital affiliation
2 office locations
Male

13 ratings & reviews

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Showing 1 to 5 of 5 reviews

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Dr smiley was absolutely terrible with me. The first procedure he wanted to do took approximately 15 to 20 minutes and he decided to put it off for a few weeks leaving me in horrible pain with no consideration. I think his name should be Dr frown. I don't understand how a doctor could treat a patient and agonizing pain but like a subhuman and send them off from the hospital to go home and agonizing pain. Doctors like these should be banned from practicing medicine. Their ego is bigger than anything else they don't care how badly you hurt they will leave you in agonizing pain until their next upcoming appointment because God forbid they spend 15 to 20 minutes on you that day. He made me feel like the worst possible human being in the world.

February 16th, 2026

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One of my better doctors, tiik the time to talk to me before trying to figure out what was wrong with me. He must be popular because it takes awhile to get an appointment but well worth it

November 1st, 2011

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I have seen Dr. Smiley a few times and he has been very helpful. One of the few doctors that spends time with you before he diagnosis you. I am very comfortable with him and would definitely recommend him.

September 28th, 2011

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Dr. Smiley is an excellent and caring physician.

July 26th, 2011

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This doctor traumatized me against doctors. Treated me like a drug addict just because I wanted Tylenol 3 and Darvocet for Crohns Disease pain. One of the WORST. Absolutely uncaring and unkind, borderline abusive. I'll never forget how badly he treated me.

July 17th, 2011

1 person found this helpful

Bristol Hospital Inc

41 Brewster RdBristol, CT 06010

Tel: (860) 585-3000

Connecticut Gi Pc

25 Newell Rd Ste E36Bristol, CT 06010

Tel: (860) 583-9252

Mon8:00 am - 5:00 pm

Tue8:00 am - 5:00 pm

Wed8:00 am - 5:00 pm

Thu8:00 am - 5:00 pm

Fri8:00 am - 5:00 pm

SatClosed

SunClosed


Dr. Daniel Norman Smiley, MD	Ji Soo Choi, APRN	Dr. Emily Weng, DO	Dr. Ronald Steven Green, MD
Gastroenterology	Gastroenterology	Gastroenterology	Gastroenterology
Accepts New Patients	Accepts New Patients
4.1 (13 Ratings)	0 (0 Ratings)	0 (0 Ratings)	5 (1 Rating)
44 Years of Experience
No Virtual Visit Option	Virtual Visit Available	No Virtual Visit Option	No Virtual Visit Option
Speaks Spanish, Polish	Speaks English
Bristol , CT	SACRAMENTO , CA	Worcester , MA	Burlington , CT
Med School: Rutgers New Jersey Medical School	Med School: New York University
Current Profile	View Profile	View Profile	View Profile

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Gastroenterology

Abdominal Pain
Acid Reflux Disease (Gastroesophageal Reflux / GERD)
Acid Reflux Disease (GERD)
Celiac Disease
Colonoscopy
Constipation
Endoscopic Retrograde Cholangiopancreatography (ERCP)
Hemorrhoids
Hepatitis C
Irritable Bowel Syndrome (IBS)
Ulcerative Colitis

Dr. Daniel Norman Smiley holds an expired medical license in the state of Connecticut.

Medical License

Medical Doctor with an expired medical license in the state of Connecticut that expired in 2026.

Education & Training

Residency

Completed their residency at Montefiore Medical Center.

Medical School

Graduated from Rutgers New Jersey Medical School in 1982.

NPI Number

Dr. Smiley's NPI number is 1033176870.

Dr. Sydney Elizabeth Kuzoian
Pediatrics
7 Years Exp | Hartford, CT
(0)
Dr. Cynthia Marie Grindle
Nurse Practitioner
| Manchester, CT
(0)
Dr. Paolo Mapelli, MD
Gastroenterology
| Waterbury, CT
(4)
Dr. Theodore L Loewenthal, MD
Gastroenterology
| Bloomfield, CT
(7)
Dr. Antonios D Sapounas, MD
Gastroenterology
36 Years Exp | Middletown, CT
(2)
Dr. Xiang Liu, MD
Gastroenterology
8 Years Exp | Boston, MA
(0)
Dr. Kenneth Irving Krasner, MD
Gastroenterology
| Bristol, CT
(0)
Dr. Teresa Dejesus Galvao De Melo Da Cunha
Internal Medicine
10 Years Exp | Farmington, CT
(0)
Dr. Erica Lardieri
Gastroenterology
| Wilmington, DE
(0)
Jennifer L Pyrro
Gastroenterology
| Avon, CT
(0)

Is Dr. Daniel Smiley accepting new patients?: Dr. Daniel Smiley is accepting new patients on Vitals. View Dr. Daniel Smiley's profile on Vitals to make an appointment.
Does Dr. Daniel Smiley accept my insurance?: You can see the insurance plans that Dr. Daniel Smiley accepts on their Vitals profile.
Where is Dr. Daniel Smiley's office located?: Dr. Daniel Smiley's office is located at 41 Brewster Rd, Bristol, CT, 06010.
Which hospitals is Dr. Daniel Smiley affiliated with?: Dr. Daniel Smiley is affiliated with Bristol Hospital Inc.
How can I make an appointment with Dr. Daniel Smiley?: You can find contact information for Dr. Daniel Smiley here on Vitals.

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