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

Dr. Mark Xuereb, MD

Individual provider Internal Medicine Physician · NPI 1114083292

Dr. Mark Xuereb, MD is an Internal Medicine Physician in Smithtown, 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 Route 25A
Smithtown, NY 11787-1348
Phone: (631) 862-3890
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 221498 (NY)

Record details

NPI number1114083292
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 31, 2006
Last updated in NPPESJuly 8, 2007
Mailing address4307 Broadway, Astoria, NY 11103-2301

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