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

Dr. Greg I. Dash, MD

Individual provider Otolaryngology Physician · NPI 1538157136

Dr. Greg I. Dash, MD is an Otolaryngology in West Islip, New York. Graduated from Columbia University College of Physicians and Surgeons in 1982, 44 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in New York.

Years since qualifying
44
Trained at
Columbia University College of Physicians and Surgeons
Licensed in
NY
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1111 Montauk Hwy
West Islip, NY 11795-4910
Phone: (631) 422-2700
Fax: (631) 422-2749
Show map & directions

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

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 157919 (NY)

Record details

NPI number1538157136
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 9, 2005
Last updated in NPPESMarch 31, 2008
Mailing address1111 Montauk Hwy, West Islip, NY 11795-4910

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 1982 (44 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare