Evelena Ontiveros, MD PHD
NPI 1689886962 · Hematology & Oncology Physician · Decatur, IL
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Evelena Ontiveros, MD PHD is a Hematology & Oncology Physician provider in Decatur, IL (NPI 1689886962).
Provider details
- NPI number
- 1689886962
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 036143984 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
11,614 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,411 | $122 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,155 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 883 | $10 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 774 | $14 |
| Microscopic Examination for White Blood Cells With Manual Cell Count85007 | 767 | $4 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test85027 | 767 | $6 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 170 | 35 |
| Ondansetron Hcl | 142 | 63 |
| Apixabanbrand: Eliquis | 107 | 19 |
| Rivaroxabanbrand: Xarelto | 99 | 18 |
| Gabapentin | 93 | 22 |
| Warfarin Sodium | 86 | 17 |
| Hydroxyurea | 81 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$554 across 25 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 1990 E Lake Shore DrDecatur, IL 62521-3811Phone: (217) 876-6600Fax: (217) 876-6606
- 101 E 9th St Ste 1Pana, IL 62557-1716Phone: (217) 876-6600Fax: (217) 876-6606
Registry dates
- Enumerated
- 2007-05-07
- Last updated
- 2025-11-12
- Certified
- 2025-11-12
Frequently asked questions
- What is Evelena Ontiveros's NPI number?
- Evelena Ontiveros's National Provider Identifier (NPI) is 1689886962, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Evelena Ontiveros's specialty?
- Evelena Ontiveros is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Evelena Ontiveros located?
- Evelena Ontiveros's practice location on file with NPPES is 210 W Mckinley Ave Ste 1, Decatur, IL 62526-5858.
- What is Evelena Ontiveros's phone number?
- The practice phone number listed in the NPPES registry for Evelena Ontiveros is (217) 876-6600.
- Does Evelena Ontiveros accept Medicare?
- Evelena Ontiveros is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Evelena Ontiveros's NPI active?
- Yes — Evelena Ontiveros's NPI (1689886962) is active in the NPPES registry as of the last update on 2025-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.