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

David J Greathouse, DO

Individual provider Internal Medicine Physician · NPI 1720071129

David J Greathouse, DO is an Internal Medicine Physician in Macomb, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

5 Doctors Ln
Macomb, IL 61455-3369
Phone: (309) 836-3387
Fax: (309) 833-1023
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036078513 (IL)

Record details

NPI number1720071129
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedAugust 31, 2005
Last updated in NPPESAugust 2, 2010

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