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

Dr. Stephen J Masiar, MD

Individual provider Psychiatry Physician · NPI 1336105345

Dr. Stephen J Masiar, MD is a Psychiatry Physician in Bay Shore, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
Specialties on file
2
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

301 E Main St
Bay Shore, NY 11706-8408
Phone: (631) 675-4149
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 167773 (NY)
Geriatric Psychiatry Physician Taxonomy 2084P0805X · Licence 167773 (NY)

Record details

NPI number1336105345
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 26, 2006
Last updated in NPPESOctober 9, 2007

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