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

William J Li Pera, MD

Individual provider Hematology & Oncology Physician · NPI 1932103330

William J Li Pera, MD is a Hematology & Oncology Physician in Port Jefferson Station, New York. Licensed in New York. Registered with an NPI since 2005.

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

49 Nesconset Hwy
Port Jefferson Station, NY 11776-2628
Phone: (631) 751-3000
Fax: (631) 509-6559
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 156944 (NY)

Record details

NPI number1932103330
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 13, 2005
Last updated in NPPESJanuary 17, 2020
Certification dateJanuary 17, 2020

Other providers in Port Jefferson Station