Quick answers
- Does Hector J. Diaz Rodriguez accept Medicare assignment?
- Yes. Medicare's clinician data says Hector J. Diaz Rodriguez 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 Hector J. Diaz Rodriguez see?
- In 2024, CMS data shows 798 Original Medicare patients and 3,196 services for Hector J. Diaz Rodriguez. This counts Original Medicare only and measures volume, not quality.
- What is Hector J. Diaz Rodriguez's NPI number?
- 1013221274. 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 Hector J. Diaz Rodriguez, 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 | 798 |
|---|---|
| Services billed to Medicare | 3,196 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)743 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)599 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)463 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)341 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)298 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%
- Chronic kidney disease75%
- Diabetes55%
- Ischemic heart disease50%
- Arthritis49%
Hospitals where Hector J. Diaz Rodriguez works
Medicare's Facility Affiliation Data lists Hector J. Diaz Rodriguez 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.
- Baptist Medical CenterSan Antonio, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450058
- Methodist Hospital Stone OakSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 670055
Practice locations
Addresses where Hector J. Diaz Rodriguez is enrolled with Medicare (CMS data updated October 2, 2026).
- 18707 Hardy Oak Blvd, Suite 530San Antonio, TX 78258 (210) 495‑8280
Group practices
Medicare enrollment lists Hector J. Diaz Rodriguez as a member of this group (CMS data updated October 2, 2026).
- San Antonio Kidney Disease Center Physicians Group, P.L.L.C.33 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Other clinicians in San Antonio Kidney Disease Center Physicians Group, P.L.L.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013221274 |
| 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