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

Mrs. Marissa Leis, MS

Individual provider Early Intervention Provider Agency · NPI 1447944723

Mrs. Marissa Leis, MS is an Early Intervention Provider Agency in Bayport, New York. Practices as a sole proprietor. Registered with an NPI since 2023.

In the registry since
2023
What do these letters mean?
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

88 Barrett Ave
Bayport, NY 11705-1410
Phone: (631) 455-9820
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Early Intervention Provider Agency (primary) Taxonomy 252Y00000X

Record details

NPI number1447944723
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS
Sole proprietorYes
NPI enumeratedJune 8, 2023
Last updated in NPPESJune 8, 2023
Certification dateJune 8, 2023

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