Luis Diaz Cruz, M. D.
NPI 1790133718 · Nephrology Physician · Toa Baja, PR
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Luis Diaz Cruz, M. D. is a Nephrology Physician provider in Toa Baja, PR (NPI 1790133718).
Provider details
- NPI number
- 1790133718
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M. D.
- Sex
- Male
- Sole proprietor
- No
- License
- 022351 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 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
41 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 | 29 | $89 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 12 | $109 |
Typical Medicare-allowed amounts for these services range $89–$109 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dapagliflozin Propanediolbrand: Farxiga | 646 | 141 |
| Losartan Potassium | 196 | 71 |
| Amlodipine Besylate | 163 | 53 |
| Sodium Zirconium Cyclosilicatebrand: Lokelma | 118 | 39 |
| Empagliflozinbrand: Jardiance | 101 | 36 |
| Linagliptinbrand: Tradjenta | 88 | 35 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$872 across 30 records (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
- 2016-05-31
- Last updated
- 2022-08-29
- Certified
- 2022-08-25
Frequently asked questions
- What is Luis Diaz Cruz's NPI number?
- Luis Diaz Cruz's National Provider Identifier (NPI) is 1790133718, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Luis Diaz Cruz's specialty?
- Luis Diaz Cruz is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Luis Diaz Cruz located?
- Luis Diaz Cruz's practice location on file with NPPES is A La Orden Shopping Center 2nd Fl 600, Toa Baja, PR 00950-1502.
- What is Luis Diaz Cruz's phone number?
- The practice phone number listed in the NPPES registry for Luis Diaz Cruz is (787) 710-2532.
- Does Luis Diaz Cruz accept Medicare?
- Luis Diaz Cruz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Luis Diaz Cruz's NPI active?
- Yes — Luis Diaz Cruz's NPI (1790133718) is active in the NPPES registry as of the last update on 2022-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.