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
Mailing address5 Doctors Ln, Macomb, IL 61455-3369

Other providers in Macomb