Evelena Ontiveros, MD PHD
Hematology & Oncology Physician · Decatur, IL
Evelena Ontiveros, MD PHD is a hematology & oncology physician with a practice address in Decatur, Illinois, and NPI 1689886962, issued on May 7, 2007. Check the license (Illinois 036143984, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Evelena Ontiveros
- Credential
- MD PHD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 036143984 IL
Self-reported in NPPES; status is on the state search - Practice location
- 210 W Mckinley Ave Ste 1, Decatur, IL 62526
- Phone
- (217) 876-6600
- Enumerated
- May 7, 2007
- Record last updated
- Nov 12, 2025
- Fax
- (217) 876-6606
- Medicare enrollment
- Enrolled (PECOS I20170807001909); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 666 in Illinois → Look up another NPI →
Also registered at 210 W Mckinley Ave Ste 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Radwan Diab, M.D.Hematology (Internal Medicine) Physician1699398297
- Benjamin Esparaz, M.D.Hematology & Oncology Physician1275502940
- Sarah Mackey, FNP-CNurse Practitioner1275102113
- Shannon Nail, LCPCProfessional Counselor1568059764
- Thomas Tarter, M.D.Surgical Oncology Physician1114913225
- Christel Wheeler, FNPFamily Nurse Practitioner1588133003
Verify Evelena Ontiveros 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 036143984Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average hematology & oncology physician in 2024
2,441 Medicare Part D claims for 366 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims. 236 claims were for opioids.
Most prescribed
- Letrozole170 claims
- Ondansetron Hcl142 claims
- Eliquis107 claims
- Xarelto99 claims
- Gabapentin93 claims
- Warfarin Sodium86 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $553.85
25 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals 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.
Bills Medicare through one group practice
- Cancer Care Specialists OF Central Illinois SCDecatur, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Evelena Ontiveros among 666 hematology & oncology physician records in Illinois
Evelena Ontiveros, MD PHD 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 2007, is newer than 43% of them.
- NPI issued2007 · 43% of these records are older, 48% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2004 · 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 Decatur → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Benjamin Esparaz, M.D.Decatur, IL 625261275502940
- Dolores Estrada-Garcia, MDDecatur, IL 625261316950033
- Perry Guaglianone, M.D.Decatur, IL 625261932168309
- Sebastien Kairouz, M.D.Decatur, IL 625261396701009
- Jane Grace Manalo, M.D.Effingham, IL 624011407813470
- Hanna Saba, MDEffingham, IL 624011720070386
- William Zimmer, M.D.Springfield, IL 627011275575821
- Edem Agamah, MDSpringfield, IL 627021932147279
Common questions
What is Evelena Ontiveros, MD PHD's NPI number?
Evelena Ontiveros, MD PHD's National Provider Identifier (NPI) is 1689886962, issued on May 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Evelena Ontiveros, MD PHD located?
The NPPES record lists a practice address at 210 W Mckinley Ave Ste 1, Decatur, IL, 62526. Phone: (217) 876-6600. Providers update this record themselves, so call before visiting.
How can I verify Evelena Ontiveros, MD PHD's license?
NPPES lists Illinois license number 036143984, 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 Evelena Ontiveros, MD PHD prescribe under Medicare Part D?
In 2024, Evelena Ontiveros, MD PHD had 2,441 Medicare Part D claims for 366 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Evelena Ontiveros, MD PHD's MIPS final score?
The 2023 MIPS final score is 77.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.