Chinemerem Abanonu, MD
NPI 1396972659 · Medical Oncology Physician · Katy, TX
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chinemerem Abanonu, MD is a Medical Oncology Physician provider in Katy, TX (NPI 1396972659).
Provider details
- NPI number
- 1396972659
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- S8945 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
478 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 | 372 | $129 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 32 | $182 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 28 | $118 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 21 | $173 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 13 | $223 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 143 | 46 |
| Letrozole | 94 | 34 |
| Apixabanbrand: Eliquis | 82 | 15 |
| Ondansetron Hcl | 60 | 27 |
| Rivaroxabanbrand: Xarelto | 53 | — |
| Gabapentin | 46 | 11 |
| Lenalidomidebrand: Revlimid | 42 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$905 across 36 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
Registry dates
- Enumerated
- 2009-06-15
- Last updated
- 2026-01-30
- Certified
- 2026-01-30
Frequently asked questions
- What is Chinemerem Abanonu's NPI number?
- Chinemerem Abanonu's National Provider Identifier (NPI) is 1396972659, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chinemerem Abanonu's specialty?
- Chinemerem Abanonu is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Chinemerem Abanonu located?
- Chinemerem Abanonu's practice location on file with NPPES is 18400 Katy Fwy, Katy, TX 77094.
- What is Chinemerem Abanonu's phone number?
- The practice phone number listed in the NPPES registry for Chinemerem Abanonu is (832) 522-8521.
- Does Chinemerem Abanonu accept Medicare?
- Chinemerem Abanonu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chinemerem Abanonu's NPI active?
- Yes — Chinemerem Abanonu's NPI (1396972659) is active in the NPPES registry as of the last update on 2026-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.