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

Aaron Robert Steimel, DO

Individual provider Internal Medicine Physician · NPI 1659067874

Aaron Robert Steimel, DO is a General Practice in O Fallon, Missouri. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2023, 3 years ago. Practices as a sole proprietor and works from 2 locations. Licensed in Missouri.

Years since qualifying
3
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
MO
In the registry since
2023
Specialties on file
3
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

20 Progress Point Pkwy Ste 108
O Fallon, MO 63368-2207
Phone: (636) 344-2400
Fax: (636) 344-2401
Show map & directions

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

Additional practice locations (1)

  • 615 S New Ballas Rd, Saint Louis, MO 63141-8221 — (314) 509-5305

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 2024049983 (MO)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
General Practice Physician Taxonomy 208D00000X · Licence 2024049983 (MO)

Record details

NPI number1659067874
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 12, 2023
Last updated in NPPESJune 4, 2026
Certification dateJune 4, 2026
Mailing addressPo Box 959354, Saint Louis, MO 63195-9354

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL PRACTICE
Medical schoolAT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Graduated 2023 (3 years in practice)
Accepts Medicare assignment Not indicated

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