NPI registry status
Active
2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1326295221 ARNP
Verify on CMS → Mariam Njoku, ARNP
Psychiatric/Mental Health Nurse Practitioner in Wichita, Kansas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 40,776 in Psychiatric/Mental Health Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
266
Medicare Part D claims · 20 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$701.53
39 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Mariam Njoku, ARNP filed 266 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Nurse Practitioner in Wichita, Kansas, prescribing 89% generic.
- 266
- Part D claims, 2023
- 89%
- generic prescribing
- $701.53
- industry payments (Sunshine Act)
- ≥49th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
CMS NPPES provider registry desk
NPI 1326295221 · Psychiatric/Mental Health Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1326295221
- ENUM-MID 2008
- TAX-MID 41K Psychiatric/Mental Health
- RX-LIGHT 266
- BOOK-THIN 386 in Kansas
- PHOTO-ENUM Terri Dupper-Knoper · 2008
Mariam Njoku, ARNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
266 ≥ 49th percentile 49% of 1,370,886 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Mariam Njoku, ARNP?
Quality data not reportedPrimary specialty
Psychiatric/Mental Health Nurse Practitioner
Medicare Part D claims
266 71% vs specialty avg
Specialty distribution in Kansas
How Psychiatric/Mental Health Nurse Practitioner compares to other specialties among Kansas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Psychiatric/Mental Health Nurse Practitioner. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1326295221 |
|---|---|
| Specialty | Psychiatric/Mental Health Nurse Practitioner |
| Credentials | ARNP |
| Gender | Female |
| NPI Issued | 08/21/2008 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Mariam Njoku, ARNP. Source: openpaymentsdata.cms.gov.
Total received
$702
Largest payer
Corium, LLC
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Typical
Mariam Njoku, ARNP - brand share 11.0%
Psychiatric/Mental Health Nurse Practitioner average
11% brand-name claims vs 89% generic, on 266 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
266
Total Claims
$19K
Total Drug Cost
20
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 394
- Total Day Supply
- 11,738
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $11K
- Generic Drug Cost
- $8K
Patient Demographics
- Average Patient Age
- 66.9 years
- Avg HCC Risk Score
- 1.42
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mariam Njoku, ARNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Dextroamphetamine-…
Dextroamphetamine-Amphetamine
33 claims
- Escitalopram Oxalate
Escitalopram Oxalate
24 claims
- Trazodone Hcl
Trazodone Hcl
19 claims
- Vyvanse
Vyvanse
17 claims
- Lamotrigine
Lamotrigine
15 claims
- Alprazolam 13
Alprazolam
13 claims
- Desvenlafaxine Suc… 13
Desvenlafaxine Succinate Er
13 claims
- Hydroxyzine Hcl 13
Hydroxyzine Hcl
13 claims
| Drug | Claims |
|---|---|
| Dextroamphetamine-Amphetamine Dextroamphetamine/Amphetamine | 33 |
| Escitalopram Oxalate | 24 |
| Trazodone Hcl | 19 |
| Vyvanse Lisdexamfetamine Dimesylate | 17 |
| Lamotrigine | 15 |
| Alprazolam | 13 |
| Desvenlafaxine Succinate Er Desvenlafaxine Succinate | 13 |
| Hydroxyzine Hcl | 13 |
| Topiramate | 13 |
| Fluoxetine Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Psychiatric/Mental Health Nurse Practitioner in KS →
All providers in Kansas →
Compare specialties →
Psychiatric/Mental Health Nurse Practitioner Overview
How Mariam Njoku, ARNP fits within the Psychiatric/Mental Health Nurse Practitioner landscape nationally.
40,776
Psychiatric/Mental Health Nurse Practitioner Providers in US
54
States with Psychiatric/Mental Health Nurse Practitioner
927
Avg Claims per Provider
Mariam Njoku, ARNP's 266 claims are below the specialty average of 927.
Nationwide Psychiatric/Mental Health Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Njoku, both outside Kansas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Kansas
Other clinicians with the same primary specialty enrolled in Kansas, drawn from the same CMS NPPES roster as Njoku.
One of 386 Psychiatric/Mental Health Nurse Practitioner providers enrolled in Kansas, 5 are shown here.
Dr. Amy Adams
APRN
Wichita, KS
Erimias Adugna
Olathe, KS
Dr. Marijen Aga
NP
Shawnee, KS
Dr. Ana Ahrens
ARNP
Wichita, KS
Dr. Donald Ahrens
ARNP
Wichita, KS
Compare Psychiatric/Mental Health Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mariam Njoku, ARNP's specialty? ▼
Mariam Njoku, ARNP specializes in Psychiatric/Mental Health Nurse Practitioner and practices in Wichita, Kansas. Credentials: ARNP.
How much does Mariam Njoku, ARNP prescribe under Medicare Part D? ▼
In 2023, Mariam Njoku, ARNP wrote 266 Medicare Part D claims totaling $19K in drug costs for 20 beneficiaries.
Where is Mariam Njoku, ARNP located? ▼
Mariam Njoku, ARNP is located at 3500 N ROCK RD BLDG 1800, Wichita, KS, 67226. Phone: (316) 201-4338.
What is Mariam Njoku, ARNP's NPI number? ▼
Mariam Njoku, ARNP's National Provider Identifier (NPI) is 1326295221, issued on 08/21/2008.
Does Mariam Njoku, ARNP prescribe more brand-name or generic drugs? ▼
Mariam Njoku, ARNP's prescribing is 11% brand-name and 89% generic drugs by claim count, with $11K in brand drug costs.
How many Psychiatric/Mental Health Nurse Practitioner providers are there in the US? ▼
There are 40,776 Psychiatric/Mental Health Nurse Practitioner providers across 54 states in the US. The average Psychiatric/Mental Health Nurse Practitioner provider writes 927 Medicare Part D claims per year.
What drugs does Mariam Njoku, ARNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Mariam Njoku, ARNP's most frequently prescribed drugs include Dextroamphetamine-Amphetamine, Escitalopram Oxalate, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mariam Njoku, ARNP accept Medicare? ▼
Mariam Njoku, ARNP appears in CMS Medicare data with 266 Part D claims and 20 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mariam Njoku, ARNP's credentials? ▼
Mariam Njoku, ARNP's NPI is 1326295221 with credentials ARNP. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.