Quick answers
- Which hospitals does Evelena P. Ontiveros work at?
- Medicare's official clinician data lists Evelena P. Ontiveros at 3 hospitals: Decatur Memorial Hospital, Pana Community Hospital and St Marys Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Evelena P. Ontiveros see patients?
- Medicare's clinician data lists 2 practice locations, including Decatur, IL. Call before your visit to confirm the address.
- What is Evelena P. Ontiveros's specialty?
- Medicare lists Hematology/Oncology as the primary specialty.
- Does Evelena P. Ontiveros accept Medicare assignment?
- Yes. Medicare's clinician data says Evelena P. Ontiveros accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Evelena P. Ontiveros offer telehealth?
- Medicare's clinician data says Evelena P. Ontiveros offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Evelena P. Ontiveros?
- (217) 464-2900, as listed in official Medicare / NPI Registry data.
- What is Evelena P. Ontiveros's NPI number?
- 1689886962. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Evelena P. Ontiveros works
Medicare's Facility Affiliation Data lists Evelena P. Ontiveros at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Decatur Memorial HospitalDecatur, IL · Acute Care Hospital · CCN 140135
- Pana Community HospitalPana, IL · Critical Access Hospital · CCN 141341
- St Marys HospitalDecatur, IL · Acute Care Hospital · CCN 140166
Practice locations
Addresses where Evelena P. Ontiveros is enrolled with Medicare (CMS data updated 2026-10-02).
- 1990 E Lake Shore DrDecatur, IL 62521 (217) 464‑2900
- 210 W McKinley Ave, Suite 1Decatur, IL 62526 (217) 877‑9442
Group practices
Medicare enrollment lists Evelena P. Ontiveros as a member of this group (CMS data updated 2026-10-02).
- Cancer Care Specialists of Central Illinois SC31 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 2004 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1689886962 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians