Dr. Michael J. Oreilly, MD
- Medicare services, 2024
- 176
- Medicare patients, 2024
- 109
- Part D claims, 2024
- 216
- MIPS score, 2024
- 94
- Hospital affiliations
- 5
- Practice address
- 800 Canton NE Rd, Marietta, GA 30060
- Practice phone
- Call (470) 267-2433
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Wellstar Medical Group
Marietta, Georgia
Find Dr. Oreilly'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. Michael J. Oreilly is a general surgeon in Marietta, Georgia
Dr. Oreilly practices at Wellstar Medical Group in Marietta, Georgia.
Dr. Oreilly's NPI, 1548300015, was assigned on February 7, 2007. Dr. Oreilly graduated from University of Texas Southwestern Medical School at Dallas in 1981. Dr. Oreilly holds Georgia license 34682.
- NPI
- 1548300015NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628154986
- NPI enumeration date
- February 7, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (470) 267-2433
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael J. Oreilly practices at Wellstar Medical Group in Marietta, Georgia
Dr. Oreilly's primary practice is Wellstar Medical Group, at 800 Canton NE Rd, Marietta, GA 30060 in Cobb County. The practice phone is (470) 267-2433.
- Wellstar Medical Group800 Canton NE Rd, Marietta, GA 30060 · Cobb CountyPhone(470) 267-2433
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael J. Oreilly is affiliated with 8 sites of care and 2 medical groups
Dr. Oreilly's primary practice is Wellstar Medical Group in Marietta, Georgia. Dr. Oreilly is also affiliated with Wellstar Kennestone Regional Medical Center. The medical group on file is Wellstar Medical Group. Dmand AI also links Dr. Oreilly to 4 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael J. Oreilly's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oreilly practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Wellstar Medical Group | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael J. Oreilly is one of 853 general surgeons in Georgia
Surgery is Dr. Oreilly's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Oreilly is licensed in Georgia.
Specialties and state licenses
- Surgery, GeorgiaPrimary
General surgeons near Dr. Oreilly
Counts of general 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. Michael J. Oreilly billed Medicare for 176 services in 2024
CMS data shows 176 Medicare services from Dr. Oreilly across 7 procedure codes in 2024, for 109 Medicare patients. Medicare paid $43,161 for them.
Dr. Oreilly's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1482024: 1443%
- Surgery
- 2023: 732024: 3256%
- Tests and treatments
- 2023: 142024: 0100%
Where Dr. Oreilly's Medicare services took place, 2024
- In an office14482%
- In a facility3218%
Dr. Oreilly compared with the Georgia median for general surgeons, 2024
- Dr. Oreilly
- Georgia median
- Medicare services
- 176vs 15017% above
- Medicare patients
- 109vs 109Close to median
- Part D claims
- 134vs 542.5 times
Medians across 789 general surgeons in Georgia with Dmand AI profiles that report each measure.
Dr. Oreilly'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
Dr. Michael J. Oreilly treated 109 Medicare patients in 2024, average age 75
CMS counts 109 Medicare patients who saw Dr. Oreilly in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high cholesterol, and 72% have high blood pressure. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Oreilly's median patient age at 72, with 48% women.
Dr. Oreilly's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Oreilly's Medicare patients by sex, 2024
- Women5853%
- Men5147%
Chronic conditions among Dr. Oreilly's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis58%
- Ischemic heart disease37%
- Anxiety28%
- Mood disorders24%
- Diabetes22%
- Depression21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Oreilly'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
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael J. Oreilly wrote 216 Medicare Part D claims in 2024
In 2024, Dr. Oreilly wrote 216 Medicare Part D claims for 89 patients. 95% of them were for generic drugs. CMS names the drug for 134 of them, across 5 drugs with 11 or more claims each, at $517 in total drug cost. In 2023, CMS named 174 claims across 5 drugs.
Dr. Oreilly's Part D claims by kind of drug, 2024
- Generic205 claims95%
- Brand-name11 claims5%
Dr. Oreilly'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. Oreilly's Part D claims, 2024
- Opioids36%78 of 216 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: 1742024: 13423%
Drugs named by CMS: 5 in 2024, 5 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
Dr. Michael J. Oreilly scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Oreilly for performance year 2024, reported through an alternative payment model (APM). Dr. Oreilly accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 33 procedures of hernia repair (minimally invasive) by Dr. Oreilly, more than 96% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Oreilly's MIPS scores, performance year 2024
- 94of 100Final score
- 82.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Oreilly ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 66th percentile59 procedures
- Hernia repair (minimally invasive)
- 96th percentile33 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael J. Oreilly received $19,056 in industry payments from 2016 to 2025
CMS Open Payments shows 110 general payments to Dr. Oreilly from 13 drug and device companies from 2016 to 2025. Education make up the largest share, 30% of the total. Intuitive Surgical, Inc. paid the most, $15,819.
General payments to Dr. Oreilly by program year, 2016 to 2025
General payments to Dr. Oreilly by kind, 2016 to 2025
- Education$5,75030%
- Travel and lodging$5,33528%
- Speaker and faculty fees$5,00026%
- Food and beverage$2,97216%
Companies that paid Dr. Oreilly the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael J. Oreilly graduated from University of Texas Southwestern Medical School at Dallas
Dr. Oreilly graduated from University of Texas Southwestern Medical School at Dallas in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael J. Oreilly'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Dr. Michael J. Oreilly
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. Michael J. Oreilly's NPI number?
Dr. Michael J. Oreilly's NPI number is 1548300015. It was assigned on February 7, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael J. Oreilly?
Dr. Michael J. Oreilly is a general surgeon in Marietta, Georgia. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Michael J. Oreilly practice?
Dr. Oreilly practices at 800 Canton NE Rd, Marietta, GA 30060. Dr. Oreilly's primary practice is Wellstar Medical Group in Marietta, Georgia. Dmand AI also links Dr. Oreilly to 4 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Michael J. Oreilly's office phone number?
The practice phone on file for Dr. Oreilly is (470) 267-2433.
What is Dr. Michael J. Oreilly's medical license number?
Dr. Oreilly holds Georgia license 34682.
Which hospitals is Dr. Michael J. Oreilly affiliated with?
Dr. Oreilly is affiliated with Wellstar Kennestone Regional Medical Center. Dmand AI links Dr. Oreilly to 4 more hospitals.
What medical group is Dr. Michael J. Oreilly part of?
Dr. Oreilly is linked to Wellstar Medical Group. Dmand AI links Dr. Oreilly to 1 more medical group.
Does Dr. Michael J. Oreilly accept Medicare?
Yes. CMS data shows Dr. Oreilly billed Medicare for 176 services in 2024, and Dr. Oreilly accepts Medicare assignment.
What is Dr. Michael J. Oreilly's MIPS score?
Dr. Oreilly's MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Michael J. Oreilly see?
CMS counts 109 Medicare patients who saw Dr. Oreilly in 2024, with an average age of 75.
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What services does Dr. Michael J. Oreilly bill to Medicare?
In 2024, Dr. Oreilly's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99212) and office visit, new patient (99203).
Where did Dr. Michael J. Oreilly go to medical school?
Dr. Oreilly graduated from University of Texas Southwestern Medical School at Dallas in 1981.
What drugs does Dr. Michael J. Oreilly prescribe most?
In 2024 Medicare Part D data, Dr. Oreilly's most prescribed drugs by claims were Ondansetron ODT, Hydrocodone-Acetaminophen and Hydromorphone HCl.
Has Dr. Michael J. Oreilly received payments from drug or device companies?
CMS Open Payments shows $19,056 in general payments to Dr. Oreilly from 13 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Michael J. Oreilly been practicing?
Dr. Oreilly graduated from medical school in 1981, 45 years ago.
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