Quick answers
- Does Waddy O. Gonzalez Diaz accept Medicare assignment?
- Yes. Medicare's clinician data says Waddy O. Gonzalez 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 Waddy O. Gonzalez Diaz see?
- In 2024, CMS data shows 1,182 Original Medicare patients and 2,291 services for Waddy O. Gonzalez Diaz. This counts Original Medicare only and measures volume, not quality.
- What is Waddy O. Gonzalez Diaz's NPI number?
- 1851636294. 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 Waddy O. Gonzalez 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 | 1,182 |
|---|---|
| Services billed to Medicare | 2,291 |
| Different services or procedures | 49 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)447 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)317 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)228 services
- Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)153 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)139 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%
- Arthritis49%
- Ischemic heart disease37%
- Atrial fibrillation34%
- Heart failure32%
Hospitals where Waddy O. Gonzalez Diaz works
Medicare's Facility Affiliation Data lists Waddy O. Gonzalez 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.
- Banner Churchill Community HospitalFallon, NV · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 291313
- Northern Nevada Medical CenterSparks, NV · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 290032
- Renown Regional Medical CenterReno, NV · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 290001
Practice locations
Addresses where Waddy O. Gonzalez Diaz is enrolled with Medicare (CMS data updated October 2, 2026).
- 2375 E Prater WaySparks, NV 89434 (775) 351‑5301
- 2385 E Prater Way, Suite 205Sparks, NV 89434 (775) 356‑4888
- 2385 E Prater Way, Suite 302Sparks, NV 89434 (775) 356‑4514
Group practices
Medicare enrollment lists Waddy O. Gonzalez Diaz as a member of this group (CMS data updated October 2, 2026).
- Northern Nevada Medical Group LLC82 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Nevada →
Other cardiologists in Sparks
Clinicians with the same Medicare primary specialty in Sparks, NV — not a recommendation.
Other clinicians in Northern Nevada Medical Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1851636294 |
| 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