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

William James Mesnard, MD

Individual provider Internal Medicine Physician · NPI 1467559617

William James Mesnard, MD is an Internal Medicine Physician in Millburn, New Jersey. Licensed in New Jersey. Registered with an NPI since 2006.

Licensed in
NJ
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

116 Millburn Ave
Millburn, NJ 07041-1919
Phone: (973) 375-2545
Fax: (973) 467-4207
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Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence MA46581 (NJ)
Internal Medicine Physician Taxonomy 207R00000X · Licence MA46581 (NJ)

Record details

NPI number1467559617
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESSeptember 11, 2025
Mailing address116 Millburn Ave, Millburn, NJ 07041-1919

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