Quick answers
- Does Guillermo H. Jordan Diaz accept Medicare assignment?
- Yes. Medicare's clinician data says Guillermo H. Jordan Diaz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Guillermo H. Jordan Diaz see?
- In 2024, CMS data shows 39 Original Medicare patients and 93 services for Guillermo H. Jordan Diaz. This counts Original Medicare only and measures volume, not quality.
- What is Guillermo H. Jordan Diaz's NPI number?
- 1679661201. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Guillermo H. Jordan Diaz, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 39 |
|---|---|
| Services billed to Medicare | 93 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)66 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)13 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Diabetes72%
- Arthritis67%
- Chronic kidney disease33%
- Ischemic heart disease31%
Hospitals where Guillermo H. Jordan Diaz works
Medicare's Facility Affiliation Data lists Guillermo H. Jordan Diaz at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Hospital Espanol Auxilio Mutuo San PabloBayamon, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400109
Practice locations
Addresses where Guillermo H. Jordan Diaz is enrolled with Medicare (CMS data updated October 2, 2026).
- 68 Calle Santa CruzBayamon, PR 00961 (787) 780‑6223
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Bayamon
Clinicians with the same Medicare primary specialty in Bayamon, PR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 1969 (57 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679661201 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians