Quick answers
- Does Diana I. Trifa accept Medicare assignment?
- Yes. Medicare's clinician data says Diana I. Trifa 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 Diana I. Trifa see?
- In 2024, CMS data shows 611 Original Medicare patients and 976 services for Diana I. Trifa. This counts Original Medicare only and measures volume, not quality.
- What is Diana I. Trifa's NPI number?
- 1588816300. 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 Diana I. Trifa, 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 | 611 |
|---|---|
| Services billed to Medicare | 976 |
| Different services or procedures | 35 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)329 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)96 services
- Ultrasound of heart with color-depicted blood flow, rate and valve function (93325)72 services
- Ultrasound of heart blood flow, valves and chambers, follow-up (93321)70 services
- Ultrasound of heart, follow-up (93308)58 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%
- Ischemic heart disease46%
- Heart failure43%
- Arthritis42%
- Chronic kidney disease41%
Hospitals where Diana I. Trifa works
Medicare's Facility Affiliation Data lists Diana I. Trifa 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.
- Mayo Clinic Health System Chippewa ValleyBloomer, WI · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 521314
- Mayo Clinic Health System Eau Claire HospitalEau Claire, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520070
- Mayo Clinic Health System-NorthlandBarron, WI · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 521315
- Mayo Clinic Health System-Red Cedar IncMenomonie, WI · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 521340
- Mayo Clinic HospitalPhoenix, AZ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 030103
Practice locations
Addresses where Diana I. Trifa is enrolled with Medicare (CMS data updated October 2, 2026).
- 13400 E Shea BlvdScottsdale, AZ 85259 (480) 301‑8000
- 1400 Bellinger StEau Claire, WI 54703 (715) 838‑5222
Group practices
Medicare enrollment lists Diana I. Trifa as a member of these groups (CMS data updated October 2, 2026).
- Mayo Clinic Arizona1,626 clinicians in the group
- Mayo Clinic Health System-Northwest Wisconsin Region Inc802 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Arizona →
Other cardiologists in Scottsdale
Clinicians with the same Medicare primary specialty in Scottsdale, AZ — not a recommendation.
Other clinicians in Mayo Clinic Arizona
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1995 (31 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588816300 |
| 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