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

Stephanie Lynn Simpson, DO

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1598183378

Stephanie Lynn Simpson, DO is a Hospitalist in O Fallon, Illinois. Graduated from Edward via Col of Osteo Medicine-Virginia Campus in 2014, 12 years ago. Practices with Cep America-Illinois Hospitalists, LLP, a 196-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
12
Trained at
Edward via Col of Osteo Medicine-Virginia Campus
Licensed in
IL
In the registry since
2014
Specialties on file
2
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

3 St Elizabeth's Blvd Ste 4000
O Fallon, IL 62269
Phone: (618) 233-5480
Fax: (618) 222-4792
Show map & directions

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

Additional practice locations (1)

  • 1402 S Grand Blvd # M260, Saint Louis, MO 63104-1004 — (314) 577-8750

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 036157114 (IL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1598183378
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 31, 2014
Last updated in NPPESJune 15, 2021
Certification dateJune 15, 2021
Mailing address3 St. Elizabeth'S Blvd Ste 4000, O Fallon, IL 62269-1284

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolEDWARD VIA COL OF OSTEO MEDICINE-VIRGINIA CAMPUS
Graduated 2014 (12 years in practice)
Group practice Cep America-Illinois Hospitalists, Llp — 196 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in O Fallon