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

William R Greenfield, MD

Individual provider Family Medicine Physician · NPI 1740272988

William R Greenfield, MD is a Family Medicine Physician in Libertyville, Illinois. Licensed in Illinois. Registered with an NPI since 2005.

Licensed in
IL
In the registry since
2005
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

716 S Milwaukee Ave
Libertyville, IL 60048-3225
Phone: (847) 362-1393
Fax: (847) 362-3797
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X (IL)

Record details

NPI number1740272988
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 15, 2005
Last updated in NPPESJuly 8, 2007

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