Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dean Nick Cassimatis, MD

Individual provider Gastroenterology Physician · NPI 1821097742

Dean Nick Cassimatis, MD is a Gastroenterology in New Windsor, New York. Graduated from New York Medical College in 1986, 40 years ago. Practices with Horizon Medical Group PC, a 76-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
40
Trained at
New York Medical College
Licensed in
NY
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

277 Quassaick Ave Rt 94
New Windsor, NY 12553-7632
Phone: (845) 565-5630
Fax: (845) 565-5643
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 175299 (NY)

Record details

NPI number1821097742
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 21, 2005
Last updated in NPPESOctober 3, 2012
Mailing address2 Coates Dr, Goshen, NY 10924-6758

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1986 (40 years in practice)
Group practice Horizon Medical Group Pc — 76 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Other providers in New Windsor