NPI registry status
Active
2026 NPPES data Gerontology Nurse Practitioner NPI 1255893061 AGNP
Verify on CMS → Irene Njuguna, AGNP
Gerontology Nurse Practitioner in Perry Hall, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,706 in Gerontology 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
990
Medicare Part D claims · 137 beneficiaries · Gerontology Nurse Practitioner avg: 1K
MIPS score
96.8/100
▲ 14 pts above national avg 83.1 · Exceptional
Industry payments
$17.1
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Irene Njuguna, AGNP reported a CMS MIPS final score of 96.8/100 - above the 83.1 national average - and filed 990 Medicare Part D claims in 2023.
- 96.8/100
- MIPS score · +14 vs avg
- 990
- Part D claims, 2023
- $17.1
- industry payments (Sunshine Act)
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.
Irene Njuguna, AGNP's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
97 Top 17% higher than 83% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Irene Njuguna, AGNP sits
This provider among gerontology nurse practitioner peers
Across the 1,301 gerontology nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Irene Njuguna, AGNP writes more Part D claims than 68% of them and scores higher on MIPS quality than 84% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one gerontology nurse practitioner peer from a representative sample of 60; the gold marker is Irene Njuguna, AGNP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Irene Njuguna, AGNP?
High performer (top quartile)Primary specialty
Gerontology Nurse Practitioner
Medicare Part D claims
990 23% vs specialty avg
MIPS final score
96.8/100 13.7 pts vs avg
Specialty distribution in Maryland
How Gerontology Nurse Practitioner compares to other specialties among Maryland providers
Medicare quality performance, MIPS
Irene Njuguna, AGNP's 2023 MIPS final score plotted against the Gerontology Nurse Practitioner national average
- MIPS Final Score
- 96.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Gerontology Nurse Practitioner) - 96.8/100 vs national avg 83.1
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).
Irene Njuguna, AGNP appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding AGNP credentials at 4307 SILVER SPRING RD, Perry Hall, MD, 21128, with a listed phone of (410) 948-5355. NPI 1255893061 was issued on 04/01/2019.
Medicare Part D records for calendar year 2023 show 990 prescription claims written by this provider, covering 137 Medicare beneficiaries and totaling roughly $50K in drug spend, with an opioid prescribing rate of 31.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 96.8/100 for the 2023 performance year (Quality 100, Cost 56), compared with the national average of 83.1.
Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,706 enrolled providers across 54 states and an average of 1,283 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 | 1255893061 |
|---|---|
| Specialty | Gerontology Nurse Practitioner |
| Credentials | AGNP |
| Gender | Female |
| NPI Issued | 04/01/2019 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
96.7888
Final Score
Avg: 83.1
100
Quality
55.9627
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Irene Njuguna, AGNP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Optimize Medical Group
Pikesville, MD
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Irene Njuguna, AGNP. Source: openpaymentsdata.cms.gov.
Total received
$17
Largest payer
Teva Pharmaceuticals USA, Inc.
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
990
Total Claims
$50K
Total Drug Cost
137
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,003
- Total Day Supply
- 17,924
- Generic Drug Cost
- $17K
- Opioid Claims
- 307 (31.0% rate)
- Antibiotic Claims
- 21
Patient Demographics
- Average Patient Age
- 73.9 years
- Avg HCC Risk Score
- 2.99
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 26, 65-74: 45, 75-84: 43, 85+: 23
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Irene Njuguna, AGNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone Hcl
Oxycodone Hcl
229 claims
- Lorazepam 50
Lorazepam
50 claims
- Clonazepam 46
Clonazepam
46 claims
- Atorvastatin Calcium 41
Atorvastatin Calcium
41 claims
- Tramadol Hcl 37
Tramadol Hcl
37 claims
- Levothyroxine Sodium 23
Levothyroxine Sodium
23 claims
- Morphine Sulfate Er 23
Morphine Sulfate Er
23 claims
- Mirtazapine 20
Mirtazapine
20 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 229 |
| Lorazepam | 50 |
| Clonazepam | 46 |
| Atorvastatin Calcium | 41 |
| Tramadol Hcl | 37 |
| Levothyroxine Sodium | 23 |
| Morphine Sulfate Er Morphine Sulfate | 23 |
| Mirtazapine | 20 |
| Dronabinol | 16 |
| Furosemide | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gerontology Nurse Practitioner Overview
How Irene Njuguna, AGNP fits within the Gerontology Nurse Practitioner landscape nationally.
9,706
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider
Irene Njuguna, AGNP's 990 claims are below the specialty average of 1,283.
Nearby Gerontology Nurse Practitioner Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Njuguna.
Aderonke Abatan
Crofton, MD
Emily Ackiss
Easton, MD
Laraba Adejo
Windsor Mill, MD
Ye Rae Ahn
Pasadena, MD
Dr. Eric Anapolsky
CRNP
Elkridge, MD
Compare Gerontology Nurse Practitioner 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 Maryland medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Gerontology Nurse Practitioner 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 Irene Njuguna, AGNP's specialty? ▼
Irene Njuguna, AGNP specializes in Gerontology Nurse Practitioner and practices in Perry Hall, Maryland. Credentials: AGNP.
How much does Irene Njuguna, AGNP prescribe under Medicare Part D? ▼
In 2023, Irene Njuguna, AGNP wrote 990 Medicare Part D claims totaling $50K in drug costs for 137 beneficiaries.
What is Irene Njuguna, AGNP's Medicare quality score? ▼
Irene Njuguna, AGNP has a CMS MIPS Final Score of 96.8/100 (Quality: 100, Cost: 56). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Irene Njuguna, AGNP located? ▼
Irene Njuguna, AGNP is located at 4307 SILVER SPRING RD, Perry Hall, MD, 21128. Phone: (410) 948-5355.
What is Irene Njuguna, AGNP's NPI number? ▼
Irene Njuguna, AGNP's National Provider Identifier (NPI) is 1255893061, issued on 04/01/2019.
Does Irene Njuguna, AGNP prescribe opioids? ▼
Yes, Irene Njuguna, AGNP had 307 opioid claims in 2023 with an opioid prescribing rate of 31.0%.
How many Gerontology Nurse Practitioner providers are there in the US? ▼
There are 9,706 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does Irene Njuguna, AGNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Irene Njuguna, AGNP's most frequently prescribed drugs include Oxycodone Hcl, Lorazepam, Clonazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Irene Njuguna, AGNP accept Medicare? ▼
Irene Njuguna, AGNP appears in CMS Medicare data with 990 Part D claims and 137 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Irene Njuguna, AGNP's credentials? ▼
Irene Njuguna, AGNP's NPI is 1255893061 with credentials AGNP. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.