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

Dr. Leslaw J Gredysa, MD

Individual provider Vascular Surgery Physician · NPI 1184729998

Dr. Leslaw J Gredysa, MD is a Vascular Surgery Physician in Riverhead, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
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

31 Main Rd Ste 2
Riverhead, NY 11901 Not confirmed with CMS for 18 years — call before visiting
Phone: (631) 369-8539
Fax: (631) 369-5613
Show map & directions

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

Specialties & licences

Vascular Surgery Physician (primary) Taxonomy 2086S0129X · Licence 175169 (NY)

Record details

NPI number1184729998
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 14, 2006
Last updated in NPPESNovember 14, 2007

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients340
Services billed 949 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.