Osvaldo Niebla Diaz, M.D.
NPI 1174550131 · General Practice Physician · Guaynabo, PR
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Osvaldo Niebla Diaz, M.D. is a General Practice Physician provider in Guaynabo, PR (NPI 1174550131).
Provider details
- NPI number
- 1174550131
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 15476 (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
19 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
36 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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 36 | $101 |
Typical Medicare-allowed amounts for these services range $101–$101 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Etodolac | 119 | 111 |
| Baclofen | 90 | 82 |
| Prednisone | 29 | 28 |
| Famotidine | 19 | — |
| Cephalexin | 18 | 18 |
| Ciprofloxacin Hcl | 16 | 16 |
| Sucralfate | 16 | 14 |
| Sulindac | 14 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$79 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
- 2006-06-27
- Last updated
- 2015-01-16
Frequently asked questions
- What is Osvaldo Niebla Diaz's NPI number?
- Osvaldo Niebla Diaz's National Provider Identifier (NPI) is 1174550131, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Osvaldo Niebla Diaz's specialty?
- Osvaldo Niebla Diaz is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Osvaldo Niebla Diaz located?
- Osvaldo Niebla Diaz's practice location on file with NPPES is 112 Acuarela. Quintavalle, Guaynabo, PR 00969-3599.
- What is Osvaldo Niebla Diaz's phone number?
- The practice phone number listed in the NPPES registry for Osvaldo Niebla Diaz is (787) 708-1712.
- Does Osvaldo Niebla Diaz accept Medicare?
- Osvaldo Niebla Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Osvaldo Niebla Diaz's NPI active?
- Yes — Osvaldo Niebla Diaz's NPI (1174550131) is active in the NPPES registry as of the last update on 2015-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.