Sarah Ann O'Brien, NP
- Medicare patients, 2024
- 58
- Part D claims, 2024
- 98
- Hospital affiliations
- 2
- Industry payments
- $246
- Medical group
- 1
- Practice address
- 1653 West Congress Parkway, Chicago, IL 60612
- Practice phone
- Call (312) 942-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Sarah 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.
Sarah Ann O'Brien is a nurse practitioner in Chicago, Illinois
Sarah O'Brien practices at Rush University Medical Center in Chicago, Illinois, part of Rush System for Health.
Sarah O'Brien's NPI, 1316301385, was assigned on April 6, 2016. Sarah O'Brien holds Indiana license 71006178A.
- NPI
- 1316301385NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557651650
- NPI enumeration date
- April 6, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 942-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Sarah Ann O'Brien practices at Rush University Medical Center in Chicago, Illinois
Sarah O'Brien's primary practice is Rush University Medical Center, at 1653 West Congress Parkway, Chicago, IL 60612 in Cook County. The practice phone is (312) 942-5000.
- Rush University Medical Center1653 West Congress Parkway, Chicago, IL 60612 · Cook CountyPhone(312) 942-5000
Source: Dmand AI Affiliation Data
Sarah Ann O'Brien is affiliated with 3 sites of care and 1 medical group
Sarah O'Brien's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health. Sarah O'Brien is also affiliated with Rush Oak Park Hospital. The medical group on file is Cardiothoracic & Vascular Surgical Associates, S.C. Dmand AI also links Sarah O'Brien to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Sarah Ann O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Sarah O'Brien practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rush University Medical Center | Available with a free account |
| +2 more affiliated sites | 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 Rush System for Health and 6.2K+ hospitals, with verified contacts in the same login.
Sarah Ann O'Brien is one of 4,254 nurse practitioners in Illinois
Nurse practitioner is Sarah O'Brien's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Sarah O'Brien is licensed in Indiana.
Specialties and state licenses
- Nurse practitioner, IndianaPrimary
Nurse practitioners near Sarah O'Brien
Counts of nurse practitioners 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
Sarah Ann O'Brien treated 58 Medicare patients in 2024, average age 70
CMS counts 58 Medicare patients who saw Sarah O'Brien in 2024. The largest group is 65 to 74, with 31 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 33% are also on Medicaid. Their average risk score is 2.26, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Sarah O'Brien's median patient age at 67, with 35% women.
Sarah O'Brien's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Sarah O'Brien's Medicare patients by sex, 2024
- Women1831%
- Men4069%
Chronic conditions among Sarah O'Brien's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease62%
- Heart failure45%
- Atrial fibrillation41%
- Chronic kidney disease41%
- Arthritis38%
- Diabetes26%
Share of Medicare patients with each condition. A patient can have several.
Sarah 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
- Women35%
- Men62%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Sarah Ann O'Brien wrote 98 Medicare Part D claims in 2024
In 2024, Sarah O'Brien wrote 98 Medicare Part D claims for 52 patients. 96% of them were for generic drugs.
Sarah O'Brien's Part D claims by kind of drug, 2024
- Generic94 claims96%
- Brand-name and other4 claims4%
Drug classes CMS tracks in Sarah O'Brien's Part D claims, 2024
- Opioids28%27 of 98 claims
- Antibiotics19%19 of 98 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Sarah Ann O'Brien takes part in Medicare
Sarah 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)
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.
Sarah Ann O'Brien received $246 in industry payments in 2025
CMS Open Payments shows 3 general payments to Sarah O'Brien from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. AtriCure, Inc. paid the most, $246.
Companies that paid Sarah O'Brien the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Sarah Ann 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 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 (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) |
| 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 Sarah Ann 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 Sarah Ann O'Brien's NPI number?
Sarah Ann O'Brien's NPI number is 1316301385. It was assigned on April 6, 2016, and it is active in the NPI Registry.
What does Sarah Ann O'Brien specialize in?
Sarah Ann O'Brien is a nurse practitioner in Chicago, Illinois. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Sarah Ann O'Brien practice?
Sarah O'Brien practices at 1653 West Congress Parkway, Chicago, IL 60612. Sarah O'Brien's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health. Dmand AI also links Sarah O'Brien to 1 group practice or clinic.
What is Sarah Ann O'Brien's office phone number?
The practice phone on file for Sarah O'Brien is (312) 942-5000.
What is Sarah Ann O'Brien's medical license number?
Sarah O'Brien holds Indiana license 71006178A.
Which hospitals is Sarah Ann O'Brien affiliated with?
Sarah O'Brien practices at Rush University Medical Center in Chicago, Illinois. Sarah O'Brien is also affiliated with Rush Oak Park Hospital.
What medical group is Sarah Ann O'Brien part of?
Sarah O'Brien is linked to Cardiothoracic & Vascular Surgical Associates, S.C.
Does Sarah Ann O'Brien accept Medicare?
Yes. CMS lists Sarah O'Brien as accepting Medicare assignment.
How many Medicare patients does Sarah Ann O'Brien see?
CMS counts 58 Medicare patients who saw Sarah O'Brien in 2024, with an average age of 70.
Has Sarah Ann O'Brien received payments from drug or device companies?
CMS Open Payments shows $246 in general payments to Sarah O'Brien from 1 company from 2025 to 2025. The largest total came from AtriCure, Inc.
How long has Sarah Ann O'Brien been practicing?
Sarah O'Brien graduated from medical school in 2015, 11 years ago.
Selling to nurse practitioner practices?
See nurse practitioners in Illinois 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