Dr. Eileen M. O'Reilly, MD
- Medicare services, 2024
- 1,125
- Medicare patients, 2024
- 299
- Part D claims, 2024
- 1,758
- Publications
- 186
- MIPS score, 2024
- 76
- Practice address
- 1275 York Avenue, New York, NY 10065
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. 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.
Dr. Eileen M. O'Reilly is a medical oncologist in New York, New York
Dr. O'Reilly practices at Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center.
Dr. O'Reilly's NPI, 1477644896, was assigned on September 28, 2006. Dr. O'Reilly graduated from University of Dublin Trinity College in 1990. Dr. O'Reilly holds New York license 207549.
- NPI
- 1477644896NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325178957
- NPI enumeration date
- September 28, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Eileen M. O'Reilly practices at Memorial Sloan Kettering Cancer Center in New York, New York
Dr. O'Reilly's primary practice is Memorial Sloan Kettering Cancer Center, at 1275 York Avenue, New York, NY 10065.
- Memorial Sloan Kettering Cancer Center1275 York Avenue, New York, NY 10065
Source: Dmand AI Affiliation Data
Dr. Eileen M. O'Reilly is affiliated with 6 sites of care and 1 medical group
Dr. O'Reilly's primary practice is Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center. Dr. O'Reilly is also affiliated with Burke Rehabilitation Hospital. The medical group on file is Memorial Sloan Kettering Cancer Center. Dmand AI also links Dr. O'Reilly to 3 more home health agencies and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Eileen M. O'Reilly's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Reilly practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorial Sloan Kettering Cancer Center | Available with a free account |
| +5 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 Memorial Sloan Kettering Cancer Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Eileen M. O'Reilly is one of 458 medical oncologists in New York
Medical oncology is Dr. O'Reilly's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. O'Reilly is licensed in New York.
Specialties and state licenses
- Medical oncology, New YorkPrimary
Clinical focus
Dmand AI lists anemia, chronic anemia, colorectal cancer, fluid and electrolyte imbalances, lung cancer, lymphoma and prostate cancer among the conditions Dr. O'Reilly treats.
Medical oncologists near Dr. O'Reilly
Counts of medical oncologists 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. Eileen M. O'Reilly billed Medicare for 1,125 services in 2024
CMS data shows 1,125 Medicare services from Dr. O'Reilly across 4 procedure codes in 2024, for 299 Medicare patients. Medicare paid $136,695 for them.
Dr. O'Reilly's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0232024: 1,12510%
Where Dr. O'Reilly's Medicare services took place, 2024
- In an office1,10198%
- In a facility242%
Dr. O'Reilly compared with the New York median for medical oncologists, 2024
- Dr. O'Reilly
- New York median
- Medicare services
- 1,125vs 3403.3 times
- Medicare patients
- 299vs 1122.7 times
- Part D claims
- 1,558vs 13012.0 times
Medians across 421 medical oncologists in New York with Dmand AI profiles that report each measure.
Dr. 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 Dr. O'Reilly?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. O'Reilly and other medical oncologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Eileen M. O'Reilly treated 299 Medicare patients in 2024, average age 75
CMS counts 299 Medicare patients who saw Dr. O'Reilly in 2024. The largest group is 75 to 84, with 130 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 7% are also on Medicaid. Their average risk score is 2.69, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. O'Reilly's median patient age at 74, with 45% women.
Dr. O'Reilly's Medicare patients by age, 2024
Dr. O'Reilly's Medicare patients by sex, 2024
- Women14548%
- Men15452%
Chronic conditions among Dr. O'Reilly's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis44%
- Diabetes44%
- Cancer32%
- Ischemic heart disease32%
- Anxiety30%
- Mood disorders26%
Share of Medicare patients with each condition. A patient can have several.
Dr. 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 74
Patient panel by sex, all payers
- Women45%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Eileen M. O'Reilly wrote 1,758 Medicare Part D claims in 2024
In 2024, Dr. O'Reilly wrote 1,758 Medicare Part D claims for 200 patients. 60% of them were for generic drugs. CMS names the drug for 1,558 of them, across 32 drugs with 11 or more claims each, at $1,884,786 in total drug cost. In 2023, CMS named 1,396 claims across 31 drugs.
Dr. O'Reilly's Part D claims by kind of drug, 2024
- Generic1,062 claims60%
- Brand-name and other696 claims40%
Dr. 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 Dr. O'Reilly's Part D claims, 2024
- Opioids7%116 of 1,758 claims
- Antibiotics3%58 of 1,758 claims
- Antipsychotics, patients 65 and over3%59 of 1,758 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: 1,3962024: 1,55812%
Drugs named by CMS: 32 in 2024, 31 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. Eileen M. O'Reilly scored 76 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 76 out of 100 for Dr. O'Reilly for performance year 2024, reported as part of a group. Dr. O'Reilly accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. O'Reilly as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. O'Reilly's MIPS scores, performance year 2024
- 76of 100Final score
- 60.6of 100Quality
- 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
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Dr. Eileen M. O'Reilly has 186 publications on record
Dmand AI links 186 papers to Dr. O'Reilly, published from 2005 to 2022. 2020 was the busiest year, with 13. The most frequent topics are Pancreatic Neoplasms, Antineoplastic Combined Chemotherapy Protocols and Adenocarcinoma. Dr. O'Reilly has published most often in Gastrointest Cancer Res. Dr. O'Reilly's most frequent co-authors are Ghassan K. Abou-Alfa, MD, David P. Kelsen, MD and Maeve Aine Lowery, MD.
Dr. O'Reilly's papers by year, 2013 to 2022
Topics Dr. O'Reilly writes about most
- Pancreatic Neoplasms
- Antineoplastic Combined Chemotherapy Protocols
- Adenocarcinoma
- Carcinoma, Pancreatic Ductal
- Deoxycytidine
- Gemcitabine
- Antineoplastic Agents
- Irinotecan
Dr. O'Reilly's most frequent co-authors
- Ghassan K. Abou-Alfa, MD43 shared papers
- David P. Kelsen, MD41 shared papers
- Maeve Aine Lowery, MD27 shared papers
Recent publications by Dr. O'Reilly
See who Dr. O'Reilly researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. O'Reilly works with, so you can find a warm path to the right medical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Eileen M. O'Reilly received $162,825 in industry payments from 2016 to 2025
CMS Open Payments shows 121 general payments to Dr. O'Reilly from 25 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 68% of the total. Merck Sharp & Dohme Corporation paid the most, $21,972. It also lists 4 research payments totaling $4,695 from 2020 to 2021.
General payments to Dr. O'Reilly by program year, 2016 to 2025
General payments to Dr. O'Reilly by kind, 2016 to 2025
- Consulting fees$110,77568%
- Speaker and faculty fees$28,03117%
- Travel and lodging$17,43811%
- Education$2,8582%
- Other$3,7232%
Companies that paid Dr. O'Reilly 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. Eileen M. O'Reilly graduated from University of Dublin Trinity College
Dr. O'Reilly graduated from University of Dublin Trinity College in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Eileen M. O'Reilly accepts plans from 11 insurance carriers
Dr. O'Reilly is in network with 11 carriers, including Aetna, Excellus BlueCross BlueShield and United Healthcare. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Excellus BlueCross BlueShield
- United Healthcare
- HCSC
- MVP Health Care
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- Cigna
- +3 more carriersWith a free account
Plan types Dr. O'Reilly accepts, by number of carriers
- PPO7
- Medicare5
- EPO4
- POS4
- HMO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Eileen M. 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Eileen M. 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 Dr. Eileen M. O'Reilly's NPI number?
Dr. Eileen M. O'Reilly's NPI number is 1477644896. It was assigned on September 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Eileen M. O'Reilly?
Dr. Eileen M. O'Reilly is a medical oncologist in New York, New York. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Eileen M. O'Reilly practice?
Dr. O'Reilly practices at 1275 York Avenue, New York, NY 10065. Dr. O'Reilly's primary practice is Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center. Dmand AI also links Dr. O'Reilly to 3 home health agencies and 1 group practice or clinic.
What is Dr. Eileen M. O'Reilly's medical license number?
Dr. O'Reilly holds New York license 207549.
Which hospitals is Dr. Eileen M. O'Reilly affiliated with?
Dr. O'Reilly practices at Memorial Sloan Kettering Cancer Center in New York, New York. Dr. O'Reilly is also affiliated with Burke Rehabilitation Hospital.
What medical group is Dr. Eileen M. O'Reilly part of?
Dr. O'Reilly is linked to Memorial Sloan Kettering Cancer Center.
Does Dr. Eileen M. O'Reilly accept Medicare?
Yes. CMS data shows Dr. O'Reilly billed Medicare for 1,125 services in 2024, and Dr. O'Reilly accepts Medicare assignment.
Does Dr. Eileen M. O'Reilly offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. O'Reilly as offering telehealth services.
What is Dr. Eileen M. O'Reilly's MIPS score?
Dr. O'Reilly's MIPS final score for performance year 2024 is 76 out of 100, reported as part of a group.
How many Medicare patients does Dr. Eileen M. O'Reilly see?
CMS counts 299 Medicare patients who saw Dr. O'Reilly in 2024, with an average age of 75.
Show 8 more questionsShow fewer questions
What services does Dr. Eileen M. O'Reilly bill to Medicare?
In 2024, Dr. O'Reilly's most billed Medicare services were office visit, established patient (99215), office visit, established patient (99214) and office visit, new patient (99205).
Where did Dr. Eileen M. O'Reilly go to medical school?
Dr. O'Reilly graduated from University of Dublin Trinity College in 1990.
What drugs does Dr. Eileen M. O'Reilly prescribe most?
In 2024 Medicare Part D data, Dr. O'Reilly's most prescribed drugs by claims were Creon, Pantoprazole Sodium and Zenpep.
Has Dr. Eileen M. O'Reilly received payments from drug or device companies?
CMS Open Payments shows $162,825 in general payments to Dr. O'Reilly from 25 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Eileen M. O'Reilly been practicing?
Dr. O'Reilly graduated from medical school in 1990, 36 years ago.
Does Dr. Eileen M. O'Reilly do research?
Dmand AI links 186 publications to Dr. O'Reilly, published from 2005 to 2022.
Who does Dr. Eileen M. O'Reilly publish with?
Dr. O'Reilly's most frequent co-authors are Ghassan K. Abou-Alfa, MD (43 shared papers), David P. Kelsen, MD (41 shared papers) and Maeve Aine Lowery, MD (27 shared papers).
What insurance does Dr. Eileen M. O'Reilly accept?
Dr. O'Reilly is in network with 11 carriers, including Aetna, Excellus BlueCross BlueShield and United Healthcare. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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