NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1831483783 PHYSICIAN ASSISTANT
Verify on CMS → Chioma Njoku, PHYSICIAN ASSISTANT
Physician Assistant in Wilmington, Delaware.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 150,974 in Physician Assistant, 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
822
Medicare Part D claims · 60 beneficiaries · Physician Assistant avg: 790
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Chioma Njoku, PHYSICIAN ASSISTANT filed 822 Medicare Part D claims in 2023 as a Physician Assistant in Wilmington, Delaware, prescribing 85% generic.
- 822
- Part D claims, 2023
- 85%
- generic prescribing
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.
Chioma Njoku, PHYSICIAN ASSISTANT's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
822 Top 27% higher than 73% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Chioma Njoku, PHYSICIAN ASSISTANT?
Quality data not reportedPrimary specialty
Physician Assistant
Medicare Part D claims
822 4% vs specialty avg
Specialty distribution in Delaware
How Physician Assistant compares to other specialties among Delaware 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 Physician Assistant. 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).
Chioma Njoku, PHYSICIAN ASSISTANT appears in the CMS NPPES registry as a Physician Assistant provider holding PHYSICIAN ASSISTANT credentials at 1601 MILLTOWN RD, Wilmington, DE, 19808, with a listed phone of (302) 463-6542. NPI 1831483783 was issued on 06/07/2011.
Medicare Part D records for calendar year 2023 show 822 prescription claims written by this provider, covering 60 Medicare beneficiaries and totaling roughly $57K in drug spend, split 15% brand-name and 85% generic by claim count.
Physician Assistant is a high-volume specialty nationwide, with 150,974 enrolled providers across 56 states and an average of 790 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1831483783 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PHYSICIAN ASSISTANT |
| Gender | Female |
| NPI Issued | 06/07/2011 |
Brand vs generic prescribing mix · Typical
Chioma Njoku, PHYSICIAN ASSISTANT - brand share 15.0%
Physician Assistant average
15% brand-name claims vs 85% generic, on 822 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.
822
Total Claims
$57K
Total Drug Cost
60
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 822
- Total Day Supply
- 21,147
- Brand vs Generic
- 15% brand / 85% generic
- Brand Drug Cost
- $35K
- Generic Drug Cost
- $22K
Patient Demographics
- Average Patient Age
- 80.4 years
- Avg HCC Risk Score
- 2.89
- Gender Split
- 75% female / 25% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Chioma Njoku, PHYSICIAN ASSISTANT prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
91 claims
- Furosemide
Furosemide
53 claims
- Potassium Chloride
Potassium Chloride
40 claims
- Xarelto 34
Xarelto
34 claims
- Carvedilol 32
Carvedilol
32 claims
- Metoprolol Succinate 30
Metoprolol Succinate
30 claims
- Amlodipine Besylate 28
Amlodipine Besylate
28 claims
- Tamsulosin Hcl 28
Tamsulosin Hcl
28 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 91 |
| Furosemide | 53 |
| Potassium Chloride | 40 |
| Xarelto Rivaroxaban | 34 |
| Carvedilol | 32 |
| Metoprolol Succinate | 30 |
| Amlodipine Besylate | 28 |
| Tamsulosin Hcl | 28 |
| Eliquis Apixaban | 22 |
| Mirtazapine | 22 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Chioma Njoku, PHYSICIAN ASSISTANT fits within the Physician Assistant landscape nationally.
150,974
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider
Chioma Njoku, PHYSICIAN ASSISTANT's 822 claims are above the specialty average of 790.
Nearby Physician Assistant Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Njoku.
Dr. Carol Abboud
P.A.
Newark, DE
Dr. Erica Abdallah
PA
Wilmington, DE
Dr. Maryam Abdur-Rahman
PA-C
Newark, DE
Eyosias Abiy
Newark, DE
Dr. Anastazia Acevedo
PA-C
Dover, DE
Compare Physician Assistant nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Delaware medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Physician Assistant peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Chioma Njoku, PHYSICIAN ASSISTANT's specialty? ▼
Chioma Njoku, PHYSICIAN ASSISTANT specializes in Physician Assistant and practices in Wilmington, Delaware. Credentials: PHYSICIAN ASSISTANT.
How much does Chioma Njoku, PHYSICIAN ASSISTANT prescribe under Medicare Part D? ▼
In 2023, Chioma Njoku, PHYSICIAN ASSISTANT wrote 822 Medicare Part D claims totaling $57K in drug costs for 60 beneficiaries.
Where is Chioma Njoku, PHYSICIAN ASSISTANT located? ▼
Chioma Njoku, PHYSICIAN ASSISTANT is located at 1601 MILLTOWN RD, Wilmington, DE, 19808. Phone: (302) 463-6542.
What is Chioma Njoku, PHYSICIAN ASSISTANT's NPI number? ▼
Chioma Njoku, PHYSICIAN ASSISTANT's National Provider Identifier (NPI) is 1831483783, issued on 06/07/2011.
Does Chioma Njoku, PHYSICIAN ASSISTANT prescribe more brand-name or generic drugs? ▼
Chioma Njoku, PHYSICIAN ASSISTANT's prescribing is 15% brand-name and 85% generic drugs by claim count, with $35K in brand drug costs.
How many Physician Assistant providers are there in the US? ▼
There are 150,974 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Chioma Njoku, PHYSICIAN ASSISTANT prescribe most often? ▼
Based on 2023 Medicare Part D data, Chioma Njoku, PHYSICIAN ASSISTANT's most frequently prescribed drugs include Atorvastatin Calcium, Furosemide, Potassium Chloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chioma Njoku, PHYSICIAN ASSISTANT accept Medicare? ▼
Chioma Njoku, PHYSICIAN ASSISTANT appears in CMS Medicare data with 822 Part D claims and 60 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chioma Njoku, PHYSICIAN ASSISTANT's credentials? ▼
Chioma Njoku, PHYSICIAN ASSISTANT's NPI is 1831483783 with credentials PHYSICIAN ASSISTANT. 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
Compiled from official public sources by the PlainDoctor editorial team.
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.