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Dr. Mark Coronel, MD

Gastroenterology* Age 46
Dr. Mark Coronel, MD
4.4 (110 Ratings)

Offers telehealth

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Dr. Mark Coronel, MD is a Gastroenterologist in Manorville, NY.
Dr. Mark Coronel, MD
4.4 (110 Ratings)
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Dr. Mark Coronel, MD

Gastroenterology* Age 46
Manorville, NY
Accepting new patients
20 years of experience

Offers telehealth

Dr. Mark Coronel, MD is a Gastroenterologist in Manorville, NY.

About

Dr. Coronel graduated from Albert Einstein College of Medicine in 2005 and completed a residency at North Shore- LIJ Health System. Dr. Mark Coronel, MD is a Gastroenterologist in Manorville, NY and has 20 years experience. Dr. Coronel currently practices at East End Gastroenterology & Hepatology and are affiliated with Peconic Bay Medical Center. Dr. Coronel has experience treating conditions like Constipation, Familial Adenomatous Polyposis and Indigestion among other conditions at varying frequencies. At present, Dr. Coronel received an average rating of 4.4/5 from patients and has been reviewed 110 times. Dr. Coronel's office accepts new patients and telehealth appointments. Dr. Coronel is board certified in Gastroenterology and accepts multiple insurance plans.

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Experience Check

Enter a condition or procedure
Constipation
Familial Adenomatous Polyposis
Indigestion
Constipation
Familial Adenomatous Polyposis
Indigestion
Constipation
Familial Adenomatous Polyposis
Indigestion
Hepatitis C
Abdominal Pain
Alcoholic Cirrhosis
Anemia
  • View other providers who treat Anemia
Barrett's Esophagus
Celiac Disease
Chronic Gastritis
Cirrhosis
Colorectal Polyp
Crohn's Disease
Dehydration
Diaphragmatic and Hiatal Hernia
Diarrhea
  • View other providers who treat Diarrhea
Dysentery
Dysphagia
Enteritis
Esophageal Ulcer
Esophageal Varices
Esophagitis
Gallstones
Gas-Bloat Syndrome
Gastric Ulcer
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastrointestinal Bleeding
Gastrointestinal Malabsorption
Gastroparesis
Gastroptosis
Heartburn
Hemorrhoids
Hepatitis B
Infectious Diarrheal Disease
Inflammatory Bowel Disease
Intestinal Diverticulitis
Intestinal Diverticulosis
Intestinal Ulcer
Irritable Bowel Syndrome
Liver Damage from Alcohol
Malnutrition
Nausea
  • View other providers who treat Nausea
Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
Ulcerative Colitis
Upper Digestive Tract Cancer
Viral Enteritis
Vomiting Disorders
Colonoscopy
Endoscopy
Flexible Sigmoidoscopy
Sigmoidoscopy
Acute Gastritis
Acute Upper Respiratory Infection
Alcoholic Fatty Liver
Alcoholic Hepatic Failure
Alcoholic Hepatitis
All Headaches (incl. Migraine)
Anal or Rectal Pain
Ascites
  • View other providers who treat Ascites
Autoimmune Hepatitis
Benign Neoplasm of the Digestive System
Bile Duct Obstruction
Biliary Cirrhosis
Cachexia
  • View other providers who treat Cachexia
Chronic Anal Fissure
Colon Cancer
Congenital Achalasia
Cyclical Vomiting
Diffuse Esophageal Spasm
Diverticulitis
Diverticulosis
Duodenal Cancer
Duodenal Ulcer
Duodenitis
Eosinophilic Esophagitis
Esophageal Achalasia and Cardiospasm
Esophageal Diverticulum
Esophageal Motility Disorders
Fever
  • View other providers who treat Fever
Food Allergy
Foot Infection
Gastrojejunal Ulcer
Hemochromatosis
Hepatitis A
Hepatitis B - Immune Response
Hepatorenal Syndrome
Hernia
  • View other providers who treat Hernia
Hiatal Hernia
Hypokalemia
Ileus
  • View other providers who treat Ileus
Intestinal Obstruction
Ischemic Colitis
Joint Pain
Lactose Intolerance
Limb Pain
Mallory-Weiss Syndrome
Megacolon
Neoplasm of Gastrointestinal Tract
Non-Neonatal Jaundice
Pancreatitis
Pharyngitis
Primary Biliary Cholangitis
Proctoptosis
Rectal Prolapse
Reflux Esophagitis
Retroperitoneum Cancer
Shortness of Breath
Splenic Infarct
Splenomegaly
Tobacco Use Disorder
Unexplained Weight Loss
Urinary Incontinence
Urinary Tract Infection (UTI)
Venous Embolism and Thrombosis
Viral Hepatitis
Vitamin B12 Anemia
Vitamin_Deficiency
Bravo pH Testing
Capsule Endoscopy
Fecal Occult Blood Test for Colorectal Cancer
Gastroenterology Procedures
GERD Treatment
Impedance Testing
VAP Lipid Testing
Wireless pH Testing

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • First Health (Coventry Health Care)
  • AgeWell New York
  • Cigna
  • United Healthcare
  • Humana
  • Harvard Pilgrim Health Care PPO
  • Aetna
  • Health Insurance Plan of Greater New York (HIP)
    Health Insurance Plan of Greater New York (HIP) PPO
  • 1199SEIU
  • WellCare
  • MultiPlan PPO
  • Blue Cross Blue Shield
    Blue Cross and Blue Shield
  • MagnaCare
  • Curative PPO Plus
    Curative EPO
    Curative PPO
  • Fidelis Care

Patient Satisfaction

Likelihood to recommend Dr. Coronel
4.4
Based on 110 Reviews
5 Stars (94)
4 Stars (0)
3 Stars (1)
2 Stars (1)
1 Star (14)

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How likely are you to recommend Dr. Coronel?

(Select your rating)
Patient Reviews
Mar 06, 2025
The experience at the Manorville location was easy but the prep is still lousy. The place was clean and the staff were professional and kind. They made this uncomfortable situation doable.
Debra D’Agnese — Mar 06, 2025
See more reviews on Healthgrades
Photo: Dr. Mark Coronel, MD
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Dr. Coronel's Office & Staff

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  • Office environment, cleanliness, comfort, etc.
  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Coronel

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

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Telehealth Options
This provider has not specified a telehealth appointment method. Would you still like to make an appointment with Dr. Coronel?
Call now to make an appointment
(631) 591-3000

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
  • Albert Einstein College of Medicine
    2005
Medical Education

Board Certifications

Board Certifications
  • Gastroenterology and Internal Medicine
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.

Internship

Internship
  • Long Island Jewish Medical Center
    2006
Internship

Residency

Residency Hospital
  • North Shore- LIJ Health System
    2008
Residency Hospital

Fellowship

Fellowship Hospital
  • North Shore Lij Health System
    2012
Fellowship Hospital
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Coronel communicate via email?
18 users said yes.
Yes
(18)
No
(2)
Does Dr. Coronel offer telehealth services or virtual visits?
10 users said yes.
Yes
(10)
No
(2)
Does Dr. Coronel offer an online patient portal?
20 users said yes.
Yes
(20)
No
(1)
Does Dr. Coronel have free onsite parking?
22 users said yes.
Yes
(22)
No
(0)
Does Dr. Coronel offer weekend visits?
11 users said yes.
Yes
(11)
No
(2)
Does Dr. Coronel offer evening visits?
13 users said yes.
Yes
(13)
No
(0)
Does Dr. Coronel specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Coronel specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Coronel specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Coronel specialize in working with LGBTQ+ community?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Coronel accept insurance?
No responses yet.
Yes
(0)
No
(0)

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. Mark Coronel, MD. To arrange an appointment, call the number on Dr. Coronel's profile.

Dr. Coronel frequently treats the following conditions: Constipation, Familial Adenomatous Polyposis and Indigestion. See more on Sharecare.

Dr. Mark Coronel, MD is affiliated with Peconic Bay Medical Center.

Yes, Dr. Mark Coronel, MD holds board certification in Gastroenterology and Internal Medicine.

Hospital Affiliations

  • Peconic Bay Medical Center

    1 Heroes Way, Riverhead, NY