Michael David O'Reilly, PA-C
- Medicare services, 2024
- 308
- Medicare patients, 2024
- 295
- Part D claims, 2024
- 1,219
- MIPS score, 2024
- 75
- Hospital affiliations
- 1
- Practice address
- 101 City Drive South, Orange, CA 92868
- Practice phone
- Call (714) 456-7890
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Michael O'Reilly'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.
Michael David O'Reilly is a physician assistant in Orange, California
Michael O'Reilly practices at UCI Health - Orange in Orange, California, part of UC Irvine.
Michael O'Reilly's NPI, 1669139879, was assigned on November 22, 2021. Michael O'Reilly holds California license PA60602.
- NPI
- 1669139879NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486041480
- NPI enumeration date
- November 22, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 456-7890
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Michael David O'Reilly practices at UCI Health - Orange in Orange, California
Michael O'Reilly's primary practice is UCI Health - Orange, at 101 City Drive South, Orange, CA 92868 in Orange County. The practice phone is (714) 456-7890.
- UCI Health - Orange101 City Drive South, Orange, CA 92868 · Orange CountyPhone(714) 456-7890
Source: Dmand AI Affiliation Data
Michael David O'Reilly is affiliated with 1 site of care and 2 medical groups
Michael O'Reilly's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. The medical group on file is UCI Health Physicians. Dmand AI also links Michael O'Reilly to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Michael David O'Reilly's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Michael O'Reilly practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCI Health - Orange | Available with a free account |
| +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 UC Irvine and 6.2K+ hospitals, with verified contacts in the same login.
Michael David O'Reilly is one of 11,482 physician assistants in California
Physician assistant is Michael O'Reilly's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Michael O'Reilly's licenses on file in 2 states: California and Nevada.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
- Nevada license
Clinical focus
Dmand AI lists arthritis among the conditions Michael O'Reilly treats.
Physician assistants near Michael O'Reilly
Counts of physician assistants 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
Michael David O'Reilly billed Medicare for 308 services in 2024
CMS data shows 308 Medicare services from Michael O'Reilly across 3 procedure codes in 2024, for 295 Medicare patients. Medicare paid $43,204 for them.
Michael O'Reilly's Medicare services by type, 2024
- Surgery283
- Office and hospital visits25
Where Michael O'Reilly's Medicare services took place, 2024
- In an office258%
- In a facility28392%
Michael O'Reilly compared with the California median for physician assistants, 2024
- Michael O'Reilly
- California median
- Medicare services
- 308vs 20451% above
- Medicare patients
- 295vs 1052.8 times
- Part D claims
- 1,168vs 2434.8 times
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Michael O'Reilly'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 Michael O'Reilly?
Medicare shows one payer. Book a meeting to get commercial claims data for Michael O'Reilly and other physician assistants in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Michael David O'Reilly treated 295 Medicare patients in 2024, average age 75
CMS counts 295 Medicare patients who saw Michael O'Reilly in 2024. The largest group is 65 to 74, with 149 patients. 75% of them have arthritis, and 75% have high blood pressure. 6% are also on Medicaid. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Michael O'Reilly's median patient age at 65, with 54% women.
Michael O'Reilly's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Michael O'Reilly's Medicare patients by sex, 2024
- Women18763%
- Men10837%
Chronic conditions among Michael O'Reilly's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Mood disorders27%
- Depression26%
- Ischemic heart disease25%
- Anxiety24%
- Diabetes21%
Share of Medicare patients with each condition. A patient can have several.
Michael O'Reilly's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Michael David O'Reilly wrote 1,219 Medicare Part D claims in 2024
In 2024, Michael O'Reilly wrote 1,219 Medicare Part D claims for 398 patients. 97% of them were for generic drugs. CMS names the drug for 1,168 of them, across 12 drugs with 11 or more claims each, at $15,500 in total drug cost.
Michael O'Reilly's Part D claims by kind of drug, 2024
- Generic1,183 claims97%
- Brand-name36 claims3%
Michael O'Reilly'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 Michael O'Reilly's Part D claims, 2024
- Opioids26%321 of 1,219 claims
- Antibiotics4%44 of 1,219 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
Michael David O'Reilly scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Michael O'Reilly for performance year 2024, reported as part of a group. Michael O'Reilly accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Michael O'Reilly's MIPS scores, performance year 2024
- 75of 100Final score
- 48.6of 100Quality
- 94of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 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.
Michael David O'Reilly received $209 in industry payments in 2024
CMS Open Payments shows 2 general payments to Michael O'Reilly from 2 drug and device companies in 2024. Food and beverage make up the largest share, 100% of the total. Davol Inc. paid the most, $171.
Companies that paid Michael O'Reilly the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Michael David O'Reilly'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 Michael David O'Reilly
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Michael David O'Reilly's NPI number?
Michael David O'Reilly's NPI number is 1669139879. It was assigned on November 22, 2021, and it is active in the NPI Registry.
What does Michael David O'Reilly specialize in?
Michael David O'Reilly is a physician assistant in Orange, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Michael David O'Reilly practice?
Michael O'Reilly practices at 101 City Drive South, Orange, CA 92868. Michael O'Reilly's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. Dmand AI also links Michael O'Reilly to 1 medical group.
What is Michael David O'Reilly's office phone number?
The practice phone on file for Michael O'Reilly is (714) 456-7890.
What is Michael David O'Reilly's medical license number?
Michael O'Reilly holds California license PA60602, one of the licenses on file in 2 states.
Which states has Michael David O'Reilly been licensed in?
Dmand AI has state licenses on file for Michael O'Reilly in California and Nevada.
Which hospitals is Michael David O'Reilly affiliated with?
Michael O'Reilly practices at UCI Health - Orange in Orange, California.
What medical group is Michael David O'Reilly part of?
Michael O'Reilly is linked to UCI Health Physicians. Dmand AI links Michael O'Reilly to 1 more medical group.
Does Michael David O'Reilly accept Medicare?
Yes. CMS data shows Michael O'Reilly billed Medicare for 308 services in 2024, and Michael O'Reilly accepts Medicare assignment.
What is Michael David O'Reilly's MIPS score?
Michael O'Reilly's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
Show 5 more questionsShow fewer questions
How many Medicare patients does Michael David O'Reilly see?
CMS counts 295 Medicare patients who saw Michael O'Reilly in 2024, with an average age of 75.
What services does Michael David O'Reilly bill to Medicare?
In 2024, Michael O'Reilly's most billed Medicare services were surgery: bones and joints (27447), surgery: bones and joints (27130) and office visit, established patient (99214).
What drugs does Michael David O'Reilly prescribe most?
In 2024 Medicare Part D data, Michael O'Reilly's most prescribed drugs by claims were Meloxicam, Hydrocodone-Acetaminophen and Methocarbamol.
Has Michael David O'Reilly received payments from drug or device companies?
CMS Open Payments shows $209 in general payments to Michael O'Reilly from 2 companies from 2024 to 2024. The largest total came from Davol Inc.
How long has Michael David O'Reilly been practicing?
Michael O'Reilly graduated from medical school in 2021, 5 years ago.
Selling to physician assistant practices?
See physician assistants in California 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