Claire Connell O'Brien
- Medicare services, 2024
- 390
- Medicare patients, 2024
- 234
- Part D claims, 2024
- 91
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 2900 W Oklahoma Ave, Milwaukee, WI 53215
- Practice phone
- Call (414) 649-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Claire 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.
Claire Connell O'Brien is an emergency medicine physician in Milwaukee, Wisconsin
Claire O'Brien practices at Aurora St. Luke's Medical Center in Milwaukee, Wisconsin, part of Advocate Health.
Claire O'Brien's NPI, 1093134884, was assigned on April 9, 2014. Claire O'Brien graduated from University of Wisconsin School of Medicine in 2014. Claire O'Brien holds Wisconsin license 69115-20.
- NPI
- 1093134884NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042438889
- NPI enumeration date
- April 9, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (414) 649-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Claire Connell O'Brien practices at Aurora St. Luke's Medical Center in Milwaukee, Wisconsin
Claire O'Brien's primary practice is Aurora St. Luke's Medical Center, at 2900 W Oklahoma Ave, Milwaukee, WI 53215 in Milwaukee County. The practice phone is (414) 649-6000.
- Aurora St. Luke's Medical Center2900 W Oklahoma Ave, Milwaukee, WI 53215 · Milwaukee CountyPhone(414) 649-6000
Source: Dmand AI Affiliation Data
Claire Connell O'Brien is affiliated with 3 sites of care and 2 medical groups
Claire O'Brien's primary practice is Aurora St. Luke's Medical Center in Milwaukee, Wisconsin, part of Advocate Health. Claire O'Brien is also affiliated with Aurora West Allis Medical Center. The medical group on file is Aurora Medical Group. Dmand AI also links Claire O'Brien to 1 more therapy and rehab clinic 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 Claire Connell O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Claire O'Brien practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aurora St. Luke's Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Claire Connell O'Brien is one of 1,211 emergency medicine physicians in Wisconsin
Emergency medicine is Claire O'Brien's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Claire O'Brien's licenses on file in 2 states: Wisconsin and Ohio.
Specialties and state licenses
- Emergency medicine, WisconsinPrimary
- Ohio license
Emergency medicine physicians near Claire 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
Claire Connell O'Brien billed Medicare for 390 services in 2024
CMS data shows 390 Medicare services from Claire O'Brien across 4 procedure codes in 2024, for 234 Medicare patients. Medicare paid $25,871 for them. Every service was in a facility, such as a hospital, rather than an office.
Claire O'Brien's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2362024: 20812%
- Tests and treatments
- 2023: 2142024: 18215%
Claire O'Brien compared with the Wisconsin median for emergency medicine physicians, 2024
- Claire O'Brien
- Wisconsin median
- Medicare services
- 390vs 24659% above
- Medicare patients
- 234vs 2216% above
- Part D claims
- 15vs 5774% below
Medians across 1,249 emergency medicine physicians in Wisconsin with Dmand AI profiles that report each measure.
Claire 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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Claire Connell O'Brien treated 234 Medicare patients in 2024, average age 74
CMS counts 234 Medicare patients who saw Claire O'Brien in 2024. The largest group is 65 to 74, with 74 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 38% are also on Medicaid. Their average risk score is 2.61, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Claire O'Brien's median patient age at 64, with 52% women.
Claire O'Brien's Medicare patients by age, 2024
Claire O'Brien's Medicare patients by sex, 2024
- Women13759%
- Men9741%
Chronic conditions among Claire O'Brien's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Chronic kidney disease56%
- Anxiety53%
- Diabetes48%
- Heart failure47%
- Ischemic heart disease47%
Share of Medicare patients with each condition. A patient can have several.
Claire 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 64
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Claire Connell O'Brien wrote 91 Medicare Part D claims in 2024
In 2024, Claire O'Brien wrote 91 Medicare Part D claims for 71 patients. 97% of them were for generic drugs. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $133 in total drug cost. In 2023, CMS named 34 claims across 2 drugs.
Claire O'Brien's Part D claims by kind of drug, 2024
- Generic88 claims97%
- Brand-name and other3 claims3%
Claire 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 Claire O'Brien's Part D claims, 2024
- Opioids12%11 of 91 claims
- Antibiotics36%33 of 91 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: 342024: 1556%
Drugs named by CMS: 1 in 2024, 2 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
How Claire Connell O'Brien takes part in Medicare
Claire O'Brien accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Claire Connell O'Brien has 1 publication on record
Dmand AI links 1 paper to Claire O'Brien in 2014. Claire O'Brien's most frequent co-author is Marcela Horvitz-Lennon, MD.
Claire O'Brien's most frequent co-authors
Recent publications by Claire O'Brien
See who Claire O'Brien researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Claire O'Brien works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Claire Connell O'Brien graduated from University of Wisconsin School of Medicine
Claire O'Brien graduated from University of Wisconsin School of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Claire Connell 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Claire Connell 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 Claire Connell O'Brien's NPI number?
Claire Connell O'Brien's NPI number is 1093134884. It was assigned on April 9, 2014, and it is active in the NPI Registry.
What does Claire Connell O'Brien specialize in?
Claire Connell O'Brien is an emergency medicine physician in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Claire Connell O'Brien practice?
Claire O'Brien practices at 2900 W Oklahoma Ave, Milwaukee, WI 53215. Claire O'Brien's primary practice is Aurora St. Luke's Medical Center in Milwaukee, Wisconsin, part of Advocate Health. Dmand AI also links Claire O'Brien to 1 therapy and rehab clinic and 1 medical group.
What is Claire Connell O'Brien's office phone number?
The practice phone on file for Claire O'Brien is (414) 649-6000.
What is Claire Connell O'Brien's medical license number?
Claire O'Brien holds Wisconsin license 69115-20, one of the licenses on file in 2 states.
Which states has Claire Connell O'Brien been licensed in?
Dmand AI has state licenses on file for Claire O'Brien in Wisconsin and Ohio.
Which hospitals is Claire Connell O'Brien affiliated with?
Claire O'Brien practices at Aurora St. Luke's Medical Center in Milwaukee, Wisconsin. Claire O'Brien is also affiliated with Aurora West Allis Medical Center.
What medical group is Claire Connell O'Brien part of?
Claire O'Brien is linked to Aurora Medical Group. Dmand AI links Claire O'Brien to 1 more medical group.
Does Claire Connell O'Brien accept Medicare?
Yes. CMS data shows Claire O'Brien billed Medicare for 390 services in 2024, and Claire O'Brien accepts Medicare assignment.
How many Medicare patients does Claire Connell O'Brien see?
CMS counts 234 Medicare patients who saw Claire O'Brien in 2024, with an average age of 74.
Show 6 more questionsShow fewer questions
What services does Claire Connell O'Brien bill to Medicare?
In 2024, Claire O'Brien's most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and critical care (99291).
Where did Claire Connell O'Brien go to medical school?
Claire O'Brien graduated from University of Wisconsin School of Medicine in 2014.
What drugs does Claire Connell O'Brien prescribe most?
In 2024 Medicare Part D data, Claire O'Brien's most prescribed drugs by claims were Cephalexin.
How long has Claire Connell O'Brien been practicing?
Claire O'Brien graduated from medical school in 2014, 12 years ago.
Does Claire Connell O'Brien do research?
Dmand AI links 1 publication to Claire O'Brien.
Who does Claire Connell O'Brien publish with?
Claire O'Brien's most frequent co-authors are Marcela Horvitz-Lennon, MD (1 shared paper).
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