Ruben Diaz, AGNP-BC, FNP-BC
NPI 1073941225 · Adult Health Nurse Practitioner · New York, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ruben Diaz, AGNP-BC, FNP-BC is a Adult Health Nurse Practitioner provider in New York, NY (NPI 1073941225).
Provider details
- NPI number
- 1073941225
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- AGNP-BC, FNP-BC
- Sex
- Male
- Sole proprietor
- No
- License
- F339816-01 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
12 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
511 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 | 246 | $75 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 130 | $78 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 74 | $117 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 27 | $129 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 19 | $49 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hcl | 82 | 31 |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle | 57 | 29 |
| Metformin Hclbrand: Metformin Hcl Er | 57 | 18 |
| Glimepiride | 53 | 20 |
| Empagliflozinbrand: Jardiance | 52 | 15 |
| Semaglutidebrand: Ozempic | 48 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$30 across 1 record (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
- 2013-10-25
- Last updated
- 2026-02-18
- Certified
- 2026-02-18
Frequently asked questions
- What is Ruben Diaz's NPI number?
- Ruben Diaz's National Provider Identifier (NPI) is 1073941225, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruben Diaz's specialty?
- Ruben Diaz is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ruben Diaz located?
- Ruben Diaz's practice location on file with NPPES is 1275 York Ave Fl 3, New York, NY 10065-6007.
- What is Ruben Diaz's phone number?
- The practice phone number listed in the NPPES registry for Ruben Diaz is (212) 639-2000.
- Does Ruben Diaz accept Medicare?
- Ruben Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ruben Diaz's NPI active?
- Yes — Ruben Diaz's NPI (1073941225) is active in the NPPES registry as of the last update on 2026-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.