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

Dr. Erik J Reiersen, MD

Individual provider Anesthesiology Physician · NPI 1740348531

Dr. Erik J Reiersen, MD is an Anesthesiology Physician in West Islip, 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

471 Montauk Hwy
West Islip, NY 11795-4414
Phone: (631) 849-1050
Fax: (631) 849-1052
Show map & directions

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

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 213746-1 (NY)

Record details

NPI number1740348531
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 5, 2006
Last updated in NPPESDecember 13, 2023
Certification dateDecember 13, 2023

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