Quick answers
- Does Tristan L. Pasek accept Medicare assignment?
- Yes. Medicare's clinician data says Tristan L. Pasek 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 Tristan L. Pasek see?
- In 2024, CMS data shows 38 Original Medicare patients and 70 services for Tristan L. Pasek. This counts Original Medicare only and measures volume, not quality.
- What is Tristan L. Pasek's NPI number?
- 1780139196. 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 Tristan L. Pasek, 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 | 38 |
|---|---|
| Services billed to Medicare | 70 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 68 |
Most frequent services
- Critical care, first 30-74 minutes (99291)40 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%
- Diabetes63%
- High cholesterol58%
- Ischemic heart disease50%
- COPD50%
- Chronic kidney disease47%
Hospitals where Tristan L. Pasek works
Medicare's Facility Affiliation Data lists Tristan L. Pasek 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.
- Valleywise Health Medical CenterPhoenix, AZ · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: not listed by Medicare · CCN 030022
Practice locations
Addresses where Tristan L. Pasek is enrolled with Medicare (CMS data updated October 2, 2026).
- 2525 E Roosevelt StPhoenix, AZ 85008 (602) 344‑1015
- 2601 E Roosevelt StPhoenix, AZ 85008 (602) 344‑5011
Group practices
Medicare enrollment lists Tristan L. Pasek as a member of this group (CMS data updated October 2, 2026).
- District Medical Group Inc458 clinicians in the group
Specialties
- Internal Medicineprimary
- Pulmonary Diseasealso
Other internal medicine doctors in Phoenix
Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.
Other clinicians in District Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780139196 |
| 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