Dr. Isabelle Vonalthen-Dagum, MD
Gastroenterology*•Female•Age 64
Gastroenterology*
Dr. Isabelle Vonalthen-Dagum, MD is a gastroenterologist in East Patchogue, NY. She is affiliated with medical facilities Stony Brook University Hospital and St. Catherine of Siena Hospital. She is accepting new patients and telehealth appointments.
Practice
285 Sills Rd East Patchogue, NY 11772Hospital Highlight
Dr. Vonalthen-Dagum is affiliated with Stony Brook University Hospital Stony Brook, a highly rated and top awarded hospital for gastroenterology.
Dr. Vonalthen-Dagum 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
- Area of Expertise
- Explains Conditions Well
- Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
- Practices at Top Hospital
Experience Check
Search for experience in a specific area
Insurance Check
Search for your insurance carrier and choose your plan type
Dr. Vonalthen-Dagum's Reviews
Likelihood to recommend Dr. Vonalthen-Dagum
4.1
| 5 Star | 73% | 73% |
| 4 Star | 7% | 7% |
| 3 Star | 0% | 0% |
| 2 Star | 0% | 0% |
| 1 Star | 20% | 20% |
Leave a review
How was your experience with Dr. Vonalthen-Dagum?Is this your profile?
Respond to reviews, add information, and reach more patients. Claiming is free and only takes a minute.
Claim your profileOverall Patient Satisfaction
Likelihood of recommending Dr. Vonalthen-Dagum to family and friends is 4.133333 out of 5
About Me
biography
Dr. Isabelle Vonalthen-Dagum, MD is a gastroenterologist in East Patchogue, NY. She is affiliated with medical facilities Stony Brook University Hospital and St. Catherine of Siena Hospital. She is accepting new patients and telehealth appointments.Gastroenterology
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Toronto General Hospital
Residency HospitalOttawa General Hospital
Internship HospitalUniversity Of Ottawa, Fac Med
Medical School
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.
Learn more about medical license public record checkFocus on IBD
Locations
Practice
Practice
Practice
- Call
- Fax
- Hours
- Mon: closed
- Tue: 8:00am - 4:30pm
- Wed: closed
- Thu: closed
- Fri: closed
- Sat: closed
- Sun: closed
- Directions
Practice
Affiliated Hospitals
- Recipient of 33
hospital awardsAmerica's 100 Best Hospitals Award™ (2025, 2024, 2023)
Top 5% in the nation for consistently delivering clinical quality
View all awardsAmerica's 250 Best Hospitals Award™ (2025, 2024, 2023)
Top 5% in the nation for consistently delivering clinical quality
View all patient feedbackHow patients felt about the care they received at this hospital.
86%Patients said they were given information about recovering at home2% higher than the national average
74%Patients said that doctors always listened to them and explained things well2% lower than the national average
- Recipient of 3
hospital awardsView all awardsGastrointestinal Care Excellence Award™ (2025)
Superior clinical outcomes in colorectal surgeries, gallbladder removal, upper gastrointestinal surgery, and treating bowel obstruction, gastrointestinal bleeds, and pancreatitis
View all patient feedbackHow patients felt about the care they received at this hospital.
84%Patients said they were given information about recovering at home76%Patients said that nurses always listened to them and explained things well1% higher than the national average
Compare Providers
Providers shown based on Dr. Vonalthen-Dagum's location and specialty. Show more Gastroenterologists.
Your trust is our top concern. Learn more.
We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.
All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.
Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.
Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.