4.6
62 Ratings with 29 written Reviews
Summary
Dr. Dean Cassimatis has practiced gastroenterology and internal medicine for 40 years, treating diverticular disease, diverticulosis, and GERD, and performing colonoscopy, lower GI endoscopy, and upper GI endoscopy. He is affiliated with Montefiore Saint Lukes Cornwall and sees patients in New Windsor and Newburgh, New York.
He completed his medical training and residency at New York Medical College. Dr. Cassimatis speaks English and Spanish. Patients on Vitals rate Dr. Cassimatis 4.61 out of 5.
He completed his medical training and residency at New York Medical College. Dr. Cassimatis speaks English and Spanish. Patients on Vitals rate Dr. Cassimatis 4.61 out of 5.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 40 years of experience
- speaks English, Spanish
- New York Medical College
- 29 written reviews
- 2 specialties
- 11 areas of expertise
- 1 hospital affiliation
- 3 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Locations
Dr. Dean Nick Cassimatis has 3 locationsHorizon Family Medical Group
277 Quassaick AveNew Windsor, NY 12553 Tel: (845) 565-5630
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed
Horizon Family Medical Group
88 Old Route 9WNew Windsor, NY 12553 Tel: (845) 549-1011
Mon7:00 am - 3:00 pm
Tue7:00 am - 3:00 pm
Wed7:00 am - 3:00 pm
Thu7:00 am - 3:00 pm
Fri7:00 am - 3:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  |  |
| Dr. Dean Nick Cassimatis, MD | Dr. Michael Dann, MD | Dr. Eric Yoon, MD | Lynn Collette-Zachar, APRN |
| Gastroenterology | Gastroenterology | Gastroenterology | Gastroenterology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 40 Years of Experience | 22 Years of Experience | 13 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English, Spanish | Speaks English | Speaks English | Speaks English |
| New Windsor , NY | New York , NY | New York , NY | Tallahassee , FL |
| Med School: New York Medical College | Med School: State University of New York | Med School: Stony Brook University School of Medicine | Med School: Regis College |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Dean Nick Cassimatis
Medical Specialties
Dr. Dean Nick Cassimatis has the following 2 specialties
Specialty Expertise
Dr. Dean Nick Cassimatis has the following 11 areas of expertise
Certifications, License, & Education
40 Years Experience
Dr. Dean Nick Cassimatis holds an expired medical license in the state of New York.
Medical License
Medical Doctor with an expired medical license in the state of New York that expired in 2026.
Education & Training
Residency
Completed their residency at New York Medical College.
Medical School
Graduated from New York Medical College in 1986.
NPI Number
Dr. Cassimatis' NPI number is 1821097742.
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Frequently Asked Questions
- Does Dr. Dean Cassimatis accept my insurance?
- You can see the insurance plans that Dr. Dean Cassimatis accepts on their Vitals profile.
- Is Dr. Dean Cassimatis accepting new patients?
- Dr. Dean Cassimatis is accepting new patients on Vitals. View Dr. Dean Cassimatis's profile on Vitals to make an appointment.
- Does Dr. Dean Cassimatis accept virtual/telehealth appointments?
- Dr. Dean Cassimatis has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Where is Dr. Dean Cassimatis's office located?
- Dr. Dean Cassimatis's office is located at 277 Quassaick Ave, New Windsor, NY, 12553.
- Which hospitals is Dr. Dean Cassimatis affiliated with?
- Dr. Dean Cassimatis is affiliated with Montefiore Saint Lukes Cornwall.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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