Onyekachi Emereuwaonu, APRN-CNP
NPI 1578201265 · Psychiatric/Mental Health Nurse Practitioner · North Las Vegas, NV
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Onyekachi Emereuwaonu, APRN-CNP is a Psychiatric/Mental Health Nurse Practitioner provider in North Las Vegas, NV (NPI 1578201265).
Provider details
- NPI number
- 1578201265
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN-CNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 854514 (NV)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
4 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
1,258 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 569 | $65 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 503 | $56 |
| Testing for Presence of Drug, By Chemistry Analyzers80307 | 61 | $61 |
| Drug Test(s), Definitive, Utilizing (1) Drug Identification Methods Able to Identify Individual Drugs and Distinguish Between Structural Isomers (but Not Necessarily Stereoisomers), Including, But Not Limited to Gc/Ms (any Type, Single Or Tandem) and Lc/MsG0481 | 59 | $153 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 55 | $100 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 50 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 288 | 54 |
| Quetiapine Fumarate | 281 | 59 |
| Sertraline Hcl | 265 | 65 |
| Trazodone Hcl | 247 | 60 |
| Hydroxyzine Hcl | 171 | 49 |
| Risperidone | 165 | 29 |
| Benztropine Mesylate | 161 | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$166 across 2 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
- 2022-05-24
- Last updated
- 2022-05-24
- Certified
- 2022-05-24
Frequently asked questions
- What is Onyekachi Emereuwaonu's NPI number?
- Onyekachi Emereuwaonu's National Provider Identifier (NPI) is 1578201265, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Onyekachi Emereuwaonu's specialty?
- Onyekachi Emereuwaonu is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Onyekachi Emereuwaonu located?
- Onyekachi Emereuwaonu's practice location on file with NPPES is 6528 Black Oaks St, North Las Vegas, NV 89084-2045.
- What is Onyekachi Emereuwaonu's phone number?
- The practice phone number listed in the NPPES registry for Onyekachi Emereuwaonu is (702) 592-6219.
- Does Onyekachi Emereuwaonu accept Medicare?
- Onyekachi Emereuwaonu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Onyekachi Emereuwaonu's NPI active?
- Yes — Onyekachi Emereuwaonu's NPI (1578201265) is active in the NPPES registry as of the last update on 2022-05-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.