Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Corinne O'Brien

Individual provider Emergency Medicine Physician · NPI 1922328467

Corinne O'Brien practises Emergency Medicine in Greenville, Illinois. Qualified in 2010, 16 years ago. Practices with Tahoe Forest Hospital District, a 142-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois and Missouri.

Years since qualifying
16
Licensed in
IL, MO
In the registry since
2010
Specialties on file
2
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Practice location Address checks out

200 Health Care Dr
Greenville, IL 62246-1154
Phone: (618) 664-1230
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 10010 Kennerly Rd, Saint Louis, MO 63128-2106 — (314) 525-1906

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036148835 (IL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 2013021968 (MO)

Record details

NPI number1922328467
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedJune 7, 2010
Last updated in NPPESMay 10, 2019

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Tahoe Forest Hospital District — 142 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients338
Services billed 464 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Ssm St Clare Health Center Hospital · Fenton, MO

Colleagues at Tahoe Forest Hospital District

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 142 clinicians in the practice; 12 are shown here.

Other providers in Greenville