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

William Frederick Oser Jr., MD

Individual provider Internal Medicine Physician · NPI 1548481690

William Frederick Oser Jr., MD is an Internal Medicine Physician in Edison, New Jersey. Practices as a sole proprietor. Licensed in New Jersey.

Licensed in
NJ
In the registry since
2007
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

65 James St
Edison, NJ 08818
Phone: (732) 321-7502
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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 25MA05065400 (NJ)

Record details

NPI number1548481690
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 2, 2007
Last updated in NPPESJuly 8, 2007
Mailing address5 Morningside Road, Verona, NJ 07044

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