Dr. John Dalena, MD
Dr. John Dalena, MD is a gastroenterologist in Florham Park, NJ and has over 35 years of experience in the medical field. He graduated from Rutgers New Jersey Medical School in 1985. He is affiliated with Morristown Medical Center. He is accepting new patients and telehealth appointments.
Atlantic Gastroenterology at Summit Medical Group
140 Park Ave # 33 Florham Park, NJ 07932Make an Appointment
Compare with other Gastroenterologists
Compare Dr. Dalena with our nearby Gastroenterologists at Cooperman Barnabas Medical Center.
Make an appointment at Cooperman Barnabas Medical Center today at
(973) 765-6593.
Dr. Dalena is a Healthgrades Choice provider in Gastroenterology
The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology
- Above average experience
- Good hospital quality
- Good patient ratings
- No healthcare sanctions
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Dr. Dalena's Reviews
Likelihood to recommend Dr. Dalena
| 5 star | 95% | 95% |
| 4 star | 4% | 4% |
| 3 star | 0% | 0% |
| 2 star | 0% | 0% |
| 1 star | 1% | 1% |
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- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Trusted the provider's decisions
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Listened & answered questions
- Staff friendliness
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
Leave a review
How was your experience with Dr. Dalena?Overall Patient Satisfaction
Likelihood of recommending Dr. Dalena to family and friends is 4.9098473 out of 5
About Me
biography
John M. Dalena, MD, specializes in conditions and diseases of the esophagus, stomach, small intestine, large intestine, liver, gall bladder, and pancreas. Dr. Dalena also provides a wide range of gastrointestinal services, including cancer screening, nutritional support, therapeutic endoscopy, and colonoscopy.Gastroenterology
Internal Medicine
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Rutgers New Jersey Medical School
Fellowship HospitalMount Sinai Medical Center
Internship HospitalUmdnj - University Hospital
Fellowship Hospital, 1990Mount Sinai Hospital
Residency Hospital, 1988Rutgers New Jersey Medical School
Medical School, 1985
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
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Locations
Atlantic Gastroenterology at Summit Medical Group
Affiliated Hospitals
- Recipient of 55
hospital awardsAmerica’s 100 Best Hospitals for Gastrointestinal Care Award™ (2025)
Superior clinical outcomes in bowel obstruction treatment, colorectal surgeries, gallbladder removal, and upper gastrointestinal surgery
View all awardsAmerica’s 100 Best Hospitals for Gastrointestinal Surgery Award™ (2025)
Superior clinical outcomes in bowel obstruction treatment, colorectal surgeries, gallbladder removal, and upper gastrointestinal surgery
View all patient feedbackHow patients felt about the care they received at this hospital.
87%Patients said they were given information about recovering at home3% higher than the national average
80%Patients would recommend the hospital to friends and family15% higher than the national average
Compare with other Gastroenterologists
Compare Dr. Dalena with our nearby Gastroenterologists at Cooperman Barnabas Medical Center.
Make an appointment at Cooperman Barnabas Medical Center today at
(973) 765-6593.