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

Robert Steven Grittmann, DO

Individual provider Internal Medicine Physician · NPI 1689707291

Robert Steven Grittmann, DO is an Internal Medicine Physician in Waterloo, Iowa. Practices as a sole proprietor. Licensed in Iowa.

Licensed in
IA
In the registry since
2007
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2055 Kimball Ave Ste 320
Waterloo, IA 50702-5014
Phone: (319) 272-2340
Fax: (319) 272-2347
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 2031 (IA)

Record details

NPI number1689707291
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedMarch 13, 2007
Last updated in NPPESJuly 27, 2010
Mailing address2055 Kimball Ave, Suite 320, Waterloo, IA 50702-5014

Other providers in Waterloo