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

Mary Lou Brennan, MS

Individual provider Specialist · NPI 1215290903

Mary Lou Brennan, MS is a Specialist in Sayville, New York. Registered with an NPI since 2012.

In the registry since
2012
What do these letters mean?
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

335 Johnson Ave
Sayville, NY 11782-1143
Phone: (631) 589-8060
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X

Record details

NPI number1215290903
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS
Sole proprietorNo
NPI enumeratedJune 19, 2012
Last updated in NPPESJune 19, 2012

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