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

Lionel U Mailloux, MD

Individual provider Nephrology Physician · NPI 1538130992

Lionel U Mailloux, MD is a Nephrology Physician in Port Washington, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2006
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

50 Seaview Blvd
Port Washington, NY 11050-4618
Phone: (516) 484-6093
Fax: (516) 484-6180
Show map & directions

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

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 097879 (NY)

Record details

NPI number1538130992
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 1, 2006
Last updated in NPPESFebruary 4, 2010
Mailing address50 Seaview Blvd, Port Washington, NY 11050-4618

Other providers in Port Washington