Corinne Michelle O'Brien
- Medicare services, 2024
- 442
- Medicare patients, 2024
- 338
- Part D claims, 2024
- 250
- MIPS score, 2024
- 87
- Hospital affiliations
- 3
- Practice address
- 1015 Bowles, Fenton, MO 63026
- Practice phone
- Call (636) 496-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Corinne O'Brien's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Corinne Michelle O'Brien is an emergency medicine physician in Fenton, Missouri
Corinne O'Brien practices at SSM Health St. Clare Hospital - Fenton in Fenton, Missouri, part of SSM Health Care.
Corinne O'Brien's NPI, 1922328467, was assigned on June 7, 2010. Corinne O'Brien holds Illinois license 036148835.
- NPI
- 1922328467NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214163229
- NPI enumeration date
- June 7, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (636) 496-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Corinne Michelle O'Brien practices at SSM Health St. Clare Hospital - Fenton in Fenton, Missouri
Corinne O'Brien's primary practice is SSM Health St. Clare Hospital - Fenton, at 1015 Bowles, Fenton, MO 63026 in Jefferson County. The practice phone is (636) 496-2000.
- SSM Health St. Clare Hospital - Fenton1015 Bowles, Fenton, MO 63026 · Jefferson CountyPhone(636) 496-2000
Source: Dmand AI Affiliation Data
Corinne Michelle O'Brien is affiliated with 4 sites of care and 2 medical groups
Corinne O'Brien's primary practice is SSM Health St. Clare Hospital - Fenton in Fenton, Missouri, part of SSM Health Care. Corinne O'Brien is also affiliated with Tahoe Forest Hospital. The medical group on file is Vituity. Dmand AI also links Corinne O'Brien to 1 more hospital, 1 hospital outpatient department and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Corinne Michelle O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Corinne O'Brien practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| SSM Health St. Clare Hospital - Fenton | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across SSM Health Care and 6.2K+ hospitals, with verified contacts in the same login.
Corinne Michelle O'Brien is one of 1,063 emergency medicine physicians in Missouri
Emergency medicine is Corinne O'Brien's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Corinne O'Brien's licenses on file in 2 states: Illinois and Missouri.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
- Missouri license
Emergency medicine physicians near Corinne O'Brien
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Corinne Michelle O'Brien billed Medicare for 442 services in 2024
CMS data shows 442 Medicare services from Corinne O'Brien across 4 procedure codes in 2024, for 338 Medicare patients. Medicare paid $48,947 for them. Every service was in a facility, such as a hospital, rather than an office.
Corinne O'Brien's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4022024: 35412%
- Tests and treatments
- 2023: 842024: 885%
Corinne O'Brien compared with the Missouri median for emergency medicine physicians, 2024
- Corinne O'Brien
- Missouri median
- Medicare services
- 442vs 25275% above
- Medicare patients
- 338vs 26229% above
- Part D claims
- 113vs 6964% above
Medians across 1,092 emergency medicine physicians in Missouri with Dmand AI profiles that report each measure.
Corinne O'Brien's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Corinne O'Brien?
Medicare shows one payer. Book a meeting to get commercial claims data for Corinne O'Brien and other emergency medicine physicians in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Corinne Michelle O'Brien treated 338 Medicare patients in 2024, average age 75
CMS counts 338 Medicare patients who saw Corinne O'Brien in 2024. The largest group is 75 to 84, with 121 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 2.18, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Corinne O'Brien's median patient age at 67, with 57% women.
Corinne O'Brien's Medicare patients by age, 2024
Corinne O'Brien's Medicare patients by sex, 2024
- Women18154%
- Men15746%
Chronic conditions among Corinne O'Brien's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Mood disorders51%
- Depression49%
- Ischemic heart disease48%
- Chronic kidney disease47%
- Heart failure47%
Share of Medicare patients with each condition. A patient can have several.
Corinne O'Brien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Corinne Michelle O'Brien wrote 250 Medicare Part D claims in 2024
In 2024, Corinne O'Brien wrote 250 Medicare Part D claims for 150 patients. 94% of them were for generic drugs. CMS names the drug for 113 of them, across 7 drugs with 11 or more claims each, at $414 in total drug cost. In 2023, CMS named 50 claims across 3 drugs.
Corinne O'Brien's Part D claims by kind of drug, 2024
- Generic236 claims94%
- Brand-name14 claims6%
Corinne O'Brien's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Corinne O'Brien's Part D claims, 2024
- Opioids23%57 of 250 claims
- Antibiotics23%57 of 250 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 502024: 113126%
Drugs named by CMS: 7 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Corinne Michelle O'Brien scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Corinne O'Brien for performance year 2024, reported as part of a group. Corinne O'Brien accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Corinne O'Brien's MIPS scores, performance year 2024
- 87of 100Final score
- 70.9of 100Quality
- 40of 100Improvement Activities
- 93of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Corinne Michelle O'Brien received $28 in industry payments in 2017
CMS Open Payments shows 2 general payments to Corinne O'Brien from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $28.
Companies that paid Corinne O'Brien the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Corinne Michelle O'Brien's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Corinne Michelle O'Brien
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Corinne Michelle O'Brien's NPI number?
Corinne Michelle O'Brien's NPI number is 1922328467. It was assigned on June 7, 2010, and it is active in the NPI Registry.
What does Corinne Michelle O'Brien specialize in?
Corinne Michelle O'Brien is an emergency medicine physician in Fenton, Missouri. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Corinne Michelle O'Brien practice?
Corinne O'Brien practices at 1015 Bowles, Fenton, MO 63026. Corinne O'Brien's primary practice is SSM Health St. Clare Hospital - Fenton in Fenton, Missouri, part of SSM Health Care. Dmand AI also links Corinne O'Brien to 1 hospital, 1 hospital outpatient department and 1 medical group.
What is Corinne Michelle O'Brien's office phone number?
The practice phone on file for Corinne O'Brien is (636) 496-2000.
What is Corinne Michelle O'Brien's medical license number?
Corinne O'Brien holds Illinois license 036148835, one of the licenses on file in 2 states.
Which states has Corinne Michelle O'Brien been licensed in?
Dmand AI has state licenses on file for Corinne O'Brien in Illinois and Missouri.
Which hospitals is Corinne Michelle O'Brien affiliated with?
Corinne O'Brien practices at SSM Health St. Clare Hospital - Fenton in Fenton, Missouri. Corinne O'Brien is also affiliated with Tahoe Forest Hospital. Dmand AI links Corinne O'Brien to 1 more hospital.
What medical group is Corinne Michelle O'Brien part of?
Corinne O'Brien is linked to Vituity. Dmand AI links Corinne O'Brien to 1 more medical group.
Does Corinne Michelle O'Brien accept Medicare?
Yes. CMS data shows Corinne O'Brien billed Medicare for 442 services in 2024, and Corinne O'Brien accepts Medicare assignment.
What is Corinne Michelle O'Brien's MIPS score?
Corinne O'Brien's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
Show 5 more questionsShow fewer questions
How many Medicare patients does Corinne Michelle O'Brien see?
CMS counts 338 Medicare patients who saw Corinne O'Brien in 2024, with an average age of 75.
What services does Corinne Michelle O'Brien bill to Medicare?
In 2024, Corinne O'Brien's most billed Medicare services were emergency department visit (99285), heart test or procedure (93042) and critical care (99291).
What drugs does Corinne Michelle O'Brien prescribe most?
In 2024 Medicare Part D data, Corinne O'Brien's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ondansetron ODT and Tamsulosin HCl.
Has Corinne Michelle O'Brien received payments from drug or device companies?
CMS Open Payments shows $28 in general payments to Corinne O'Brien from 1 company from 2017 to 2017. The largest total came from Allergan Inc.
How long has Corinne Michelle O'Brien been practicing?
Corinne O'Brien graduated from medical school in 2010, 16 years ago.
Selling to emergency medicine practices?
See emergency medicine physicians in Missouri by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card