Dr. Patrick Evans O'Brien, MD
- Part D claims, 2024
- 96
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 4301 West Markham Street Mail Slot 612, Little Rock, AR 72205
- Practice phone
- Call (501) 686-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. 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.
Dr. Patrick Evans O'Brien is an orthopedic surgeon in Little Rock, Arkansas
Dr. O'Brien practices at UAMS Medical Center in Little Rock, Arkansas, part of University of Arkansas for Medical Sciences.
Dr. O'Brien's NPI, 1801475298, was assigned on April 5, 2021. Dr. O'Brien holds Utah license 14281284-1205.
- NPI
- 1801475298NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941600837
- NPI enumeration date
- April 5, 2021
- NPI status
- Active
- Practice phone
- (501) 686-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Patrick Evans O'Brien practices at UAMS Medical Center in Little Rock, Arkansas
Dr. O'Brien's primary practice is UAMS Medical Center, at 4301 West Markham Street Mail Slot 612, Little Rock, AR 72205 in Pulaski County. The practice phone is (501) 686-5000.
- UAMS Medical Center4301 West Markham Street Mail Slot 612, Little Rock, AR 72205 · Pulaski CountyPhone(501) 686-5000
Source: Dmand AI Affiliation Data
Dr. Patrick Evans O'Brien is affiliated with 1 site of care and 1 medical group
Dr. O'Brien's primary practice is UAMS Medical Center in Little Rock, Arkansas, part of University of Arkansas for Medical Sciences. The medical group on file is University of Utah Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Patrick Evans O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Brien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UAMS Medical Center | 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 University of Arkansas for Medical Sciences and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Patrick Evans O'Brien is one of 186 orthopedic surgeons in Arkansas
Orthopaedic surgery is Dr. O'Brien's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. O'Brien is licensed in Utah.
Specialties and state licenses
- Orthopaedic surgery, UtahPrimary
Orthopedic surgeons near Dr. O'Brien
Counts of orthopedic surgeons 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
Dr. Patrick Evans O'Brien's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Dr. O'Brien's median patient age at 72, with 50% women.
Dr. 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 72
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Patrick Evans O'Brien wrote 96 Medicare Part D claims in 2024
In 2024, Dr. O'Brien wrote 96 Medicare Part D claims for 67 patients. 100% of them were for generic drugs. CMS names the drug for 49 of them, across 2 drugs with 11 or more claims each, at $379 in total drug cost.
Dr. 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 Dr. O'Brien's Part D claims, 2024
- Opioids66%63 of 96 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
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.
Sources for Dr. Patrick Evans 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 Data |
| 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) |
| 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 Dr. Patrick Evans 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 Dr. Patrick Evans O'Brien's NPI number?
Dr. Patrick Evans O'Brien's NPI number is 1801475298. It was assigned on April 5, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Patrick Evans O'Brien?
Dr. Patrick Evans O'Brien is an orthopedic surgeon in Little Rock, Arkansas. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Patrick Evans O'Brien practice?
Dr. O'Brien practices at 4301 West Markham Street Mail Slot 612, Little Rock, AR 72205. Dr. O'Brien's primary practice is UAMS Medical Center in Little Rock, Arkansas, part of University of Arkansas for Medical Sciences.
What is Dr. Patrick Evans O'Brien's office phone number?
The practice phone on file for Dr. O'Brien is (501) 686-5000.
What is Dr. Patrick Evans O'Brien's medical license number?
Dr. O'Brien holds Utah license 14281284-1205.
Which hospitals is Dr. Patrick Evans O'Brien affiliated with?
Dr. O'Brien practices at UAMS Medical Center in Little Rock, Arkansas.
What medical group is Dr. Patrick Evans O'Brien part of?
Dr. O'Brien is linked to University of Utah Health.
What drugs does Dr. Patrick Evans O'Brien prescribe most?
In 2024 Medicare Part D data, Dr. O'Brien's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Oxycodone-Acetaminophen.
How long has Dr. Patrick Evans O'Brien been practicing?
Dr. O'Brien's NPI was assigned in 2021.
Selling to orthopaedic surgery practices?
See orthopedic surgeons in Arkansas 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