NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1073941225 AGNP-BC, FNP-BC
Verify on CMS → Ruben Diaz, AGNP-BC, FNP-BC
Family Nurse Practitioner in New York, New York.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 210,832 in Family 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
550
Medicare Part D claims · 73 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
39%
generic claims · 45% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.5 · Exceptional
Industry payments
$30.2
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Ruben Diaz, AGNP-BC, FNP-BC reported a CMS MIPS final score of 100/100 - above the 83.5 national average - and filed 550 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 550
- Part D claims, 2023
- 39%
- generic prescribing
- $30.2
- 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.
CMS NPPES provider registry desk
NPI 1073941225 · Family Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ELITE · RX-LIGHT · BOOK-MID · PHOTO-FINISH
- NPI-10 1073941225
- ENUM-MID 2013
- TAX-MEGA 211K Family Nurse
- MIPS-ELITE 100/100
- RX-LIGHT 550
- BOOK-MID 12,508 in New York
- PHOTO-FINISH Melanie Abner · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Diaz · this prov…
Diaz · this provider
100 MIPS pts
- Danait Abraha · …
Danait Abraha
100 MIPS pts
- Melanie Abner · …
Melanie Abner
100 MIPS pts
- Cecilia Aboagye …
Cecilia Aboagye
100 MIPS pts
- Teklehaimanot Ab…
Teklehaimanot Abraha
100 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Ruben Diaz, AGNP-BC, FNP-BC's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
100 ≥ 92nd percentile 92% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Ruben Diaz, AGNP-BC, FNP-BC sits
This provider among family nurse practitioner peers
Across the 26,556 family nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Ruben Diaz, AGNP-BC, FNP-BC writes more Part D claims than 57% of them and scores higher on MIPS quality than 92% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family nurse practitioner peer from a representative sample of 60; the gold marker is Ruben Diaz, AGNP-BC, FNP-BC. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Ruben Diaz, AGNP-BC, FNP-BC?
High performer (top quartile)Primary specialty
Family Nurse Practitioner
Medicare Part D claims
550 55% vs specialty avg
MIPS final score
100/100 16.5 pts vs avg
Specialty distribution in New York
How Family Nurse Practitioner compares to other specialties among New York providers
Medicare quality performance, MIPS
Ruben Diaz, AGNP-BC, FNP-BC's 2023 MIPS final score plotted against the Family Nurse Practitioner national average
- MIPS Final Score
- 100/100
- vs 83.5 national avg · 2023 performance year
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 | 1073941225 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | AGNP-BC, FNP-BC |
| Gender | Male |
| NPI Issued | 10/25/2013 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Measured-score avg: 83.5
91.8061
Quality
Reporting: Group practice
Hospital and facility affiliations
Facilities where Ruben Diaz, AGNP-BC, FNP-BC 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.
Memorial Endocrine Group
New York, NY
North Shore-Lij Medical PC
Sleepy Hollow, NY
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 Ruben Diaz, AGNP-BC, FNP-BC. Source: openpaymentsdata.cms.gov.
Total received
$30
Largest payer
Novo Nordisk 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.
License & disciplinary context - New York NYSBPMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~100K New York medical licensees in 2023 - they are NOT specific to Ruben Diaz, AGNP-BC, FNP-BC. To verify Ruben Diaz, AGNP-BC, FNP-BC's current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases
NYSBPMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Ruben Diaz, AGNP-BC, FNP-BC - brand share 45.0%
Family Nurse Practitioner average
45% brand-name claims vs 39% generic, on 550 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.
550
Total Claims
$211K
Total Drug Cost
73
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 876
- Total Day Supply
- 25,790
- Brand vs Generic
- 45% brand / 39% generic
- Brand Drug Cost
- $187K
- Generic Drug Cost
- $7K
Patient Demographics
- Average Patient Age
- 71.0 years
- Avg HCC Risk Score
- 2.88
- Gender Split
- 48% female / 52% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ruben Diaz, AGNP-BC, FNP-BC prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metformin Hcl
Metformin Hcl
58 claims
- Metformin Hcl Er
Metformin Hcl Er
48 claims
- Jardiance
Jardiance
42 claims
- Humalog Kwikpen U-…
Humalog Kwikpen U-100
28 claims
- Glimepiride
Glimepiride
25 claims
- Ozempic 19
Ozempic
19 claims
- Novolog Flexpen 18
Novolog Flexpen
18 claims
- Tresiba Flextouch … 14
Tresiba Flextouch U-100
14 claims
| Drug | Claims |
|---|---|
| Metformin Hcl | 58 |
| Metformin Hcl Er Metformin Hcl | 48 |
| Jardiance Empagliflozin | 42 |
| Humalog Kwikpen U-100 Insulin Lispro | 28 |
| Glimepiride | 25 |
| Ozempic Semaglutide | 19 |
| Novolog Flexpen Insulin Aspart | 18 |
| Tresiba Flextouch U-100 Insulin Degludec | 14 |
| Alcohol Prep Pads Alcohol Antiseptic Pads | 13 |
| Levemir Flexpen Insulin Detemir | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Ruben Diaz, AGNP-BC, FNP-BC fits within the Family Nurse Practitioner landscape nationally.
210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Ruben Diaz, AGNP-BC, FNP-BC's 550 claims are below the specialty average of 1,222.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Diaz, both outside New York so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (100 here).
Same NPPES enumeration year (2013)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Nurse Practitioner Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Diaz.
One of 12,508 Family Nurse Practitioner providers enrolled in New York, 5 are shown here.
Dr. Carolyn A'Hearn
NP
Syracuse, NY
Dr. Lindsey Aanonsen
FNP
Staten Island, NY
Dr. Abigail Aaron
FNP
New York, NY
Dr. Memoudou Abalola
NP
Bronx, NY
Dr. Jennifer Abate
FNP-BC
New York, NY
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Ruben Diaz, AGNP-BC, FNP-BC's specialty? ▼
Ruben Diaz, AGNP-BC, FNP-BC specializes in Family Nurse Practitioner and practices in New York, New York. Credentials: AGNP-BC, FNP-BC.
How much does Ruben Diaz, AGNP-BC, FNP-BC prescribe under Medicare Part D? ▼
In 2023, Ruben Diaz, AGNP-BC, FNP-BC wrote 550 Medicare Part D claims totaling $211K in drug costs for 73 beneficiaries.
What is Ruben Diaz, AGNP-BC, FNP-BC's Medicare quality score? ▼
Ruben Diaz, AGNP-BC, FNP-BC has a CMS MIPS Final Score of 100/100 (Quality: 91.8). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ruben Diaz, AGNP-BC, FNP-BC located? ▼
Ruben Diaz, AGNP-BC, FNP-BC is located at 1275 YORK AVE FL 3, New York, NY, 10065. Phone: (212) 639-2000.
What is Ruben Diaz, AGNP-BC, FNP-BC's NPI number? ▼
Ruben Diaz, AGNP-BC, FNP-BC's National Provider Identifier (NPI) is 1073941225, issued on 10/25/2013.
Does Ruben Diaz, AGNP-BC, FNP-BC prescribe more brand-name or generic drugs? ▼
Ruben Diaz, AGNP-BC, FNP-BC's prescribing is 45% brand-name and 39% generic drugs by claim count, with $187K in brand drug costs.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Ruben Diaz, AGNP-BC, FNP-BC prescribe most often? ▼
Based on 2023 Medicare Part D data, Ruben Diaz, AGNP-BC, FNP-BC's most frequently prescribed drugs include Metformin Hcl, Metformin Hcl Er, Jardiance. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ruben Diaz, AGNP-BC, FNP-BC accept Medicare? ▼
Ruben Diaz, AGNP-BC, FNP-BC appears in CMS Medicare data with 550 Part D claims and 73 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ruben Diaz, AGNP-BC, FNP-BC's credentials? ▼
Ruben Diaz, AGNP-BC, FNP-BC's NPI is 1073941225 with credentials AGNP-BC, FNP-BC. 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
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.