Paul F. Oneill, M.D.
Hematology & Oncology Physician · McHenry, IL
Paul F. Oneill, M.D. is a hematology & oncology physician with a practice address in McHenry, Illinois, and NPI 1548262611, issued on Aug 10, 2005. Check the license (Illinois 036163729, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Paul F. Oneill
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 036163729 IL
22764 AZ
7371256 ID
Self-reported in NPPES; status is on the state search - Practice location
- 4305 W Medical Center Dr Ste 1, McHenry, IL 60050
- Phone
- (815) 759-8100
- Enumerated
- Aug 10, 2005
- Record last updated
- Jul 28, 2025
- Fax
- (815) 759-8106
- Medicare enrollment
- Enrolled (PECOS I20260526001004); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 666 in Illinois → Look up another NPI →
Also registered at 4305 W Medical Center Dr Ste 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathryn Barney, FNP-BCNurse Practitioner1578092441
- Cherie Fiedler, APRN, FNP-BCNurse Practitioner1730822263
- Bruce Gershenhorn, DOHematology & Oncology Physician1588796478
- Andrea Good, NURSE PRACTITIONERNurse Practitioner1154899094
- Beverly Jakic, APRN, CNPNurse Practitioner1659181568
- Victor Medina, D.O.Hematology & Oncology Physician1720492572
Verify Paul F. Oneill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036163729Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
584 Medicare Part D claims for 182 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 39 claims were for opioids.
Most prescribed
- Anastrozole88 claims
- Ondansetron Hcl46 claims
- Acyclovir38 claims
- Dexamethasone38 claims
- Prochlorperazine Maleate36 claims
- Eliquis30 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $147.27
4 payments; by number, the most common kind was food and beverage; the largest payer was Incyte Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Paul F. Oneill among 666 hematology & oncology physician records in Illinois
Paul F. Oneill, M.D. is one of 666 hematology & oncology physician records with a practice address in Illinois. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1990 · median 2003 among the 461 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Illinois
There are 666 hematology & oncology physician records in Illinois.
All 666 in Illinois → Every provider in McHenry → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Bruce Gershenhorn, DOMcHenry, IL 600501588796478
- Nida Hussain, M.D.McHenry, IL 600501134562150
- Michal Kubiak, M.D.McHenry, IL 600501144776360
- Victor Medina, D.O.McHenry, IL 600501720492572
- Mir Ali, MDLibertyville, IL 600481518237585
- Michael Breen, MD, PHDLibertyville, IL 600481669861449
- Aalisha DesaiLibertyville, IL 600481962816108
- Kevin Prescott, MDLibertyville, IL 600481144713348
Common questions
What is Paul F. Oneill, M.D.'s NPI number?
Paul F. Oneill, M.D.'s National Provider Identifier (NPI) is 1548262611, issued on Aug 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Paul F. Oneill, M.D. located?
The NPPES record lists a practice address at 4305 W Medical Center Dr Ste 1, McHenry, IL, 60050. Phone: (815) 759-8100. Providers update this record themselves, so call before visiting.
How can I verify Paul F. Oneill, M.D.'s license?
NPPES lists Illinois license number 036163729, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Paul F. Oneill, M.D. prescribe under Medicare Part D?
In 2024, Paul F. Oneill, M.D. had 584 Medicare Part D claims for 182 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.