Guillermo H. Jordan Diaz, MD
NPI 1679661201ActiveIndividual· Orthopaedic Surgery, Adult Reconstructive Orthopaedic Surgery· Bayamon, PR
Orthopaedic Surgery, Adult Reconstructive Orthopaedic Surgery (MD) in Bayamon, Puerto Rico, trained at University of Puerto Rico School of Medicine (class of 1969). 39 Medicare patients in 2024, $8,374 paid; nearly all of their 349 Part D prescriptions were generic (98%). Johnson and Johnson International reported $112.10 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1679661201 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Oct 10, 2006 |
| Last updated in NPPES | Sep 18, 2025 |
| Certified by provider | Sep 18, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Adult Reconstructive Orthopaedic Surgery Primary | 207XS0114X | 4346 | PR |
| Orthopaedic Surgery | 207X00000X | 4346 | PR |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (PR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 39 |
|---|---|
| Services billed | 93 across 8 procedure codes |
| Paid by Medicare | $8,374 |
Part D prescriptions in 2024
| Prescriptions (claims) | 349 · 380 30-day fills |
|---|---|
| Patients | 226 |
| Total drug cost | $4,380 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | University of Puerto Rico School of Medicine |
|---|---|
| Graduation year | 1969 |
| Medicare specialty | Orthopedic Surgery |
Hospital affiliation
- Hospital Espanol Auxilio Mutuo San PabloBayamon, PR
Industry payments (Open Payments)
- 2025$112.10 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Johnson and Johnson International | $112.10 | 1 |
What the 2025 payments were for
- Food and Beverage$112.10 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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