Quick answers
- Does Gabriel El-Kass accept Medicare assignment?
- Yes. Medicare's clinician data says Gabriel El-Kass 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 Gabriel El-Kass see?
- In 2024, CMS data shows 204 Original Medicare patients and 801 services for Gabriel El-Kass. This counts Original Medicare only and measures volume, not quality.
- What is Gabriel El-Kass's NPI number?
- 1821295353. 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 Gabriel El-Kass, 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 | 204 |
|---|---|
| Services billed to Medicare | 801 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist (36902)129 services
- Dialysis services, 4 or more physician visits per month (20 years or older) (90960)124 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)104 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)50 services
- Review by radiologist of arm or leg artery image (75710)45 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%
- Diabetes71%
- Heart failure60%
- Ischemic heart disease51%
Hospitals where Gabriel El-Kass works
Medicare's Facility Affiliation Data lists Gabriel El-Kass 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.
- Northwest Medical CenterTucson, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030085
- Oro Valley HospitalOro Valley, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030114
- St Joseph's HospitalTucson, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030011
- St. Mary's HospitalTucson, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030010
Practice locations
Addresses where Gabriel El-Kass is enrolled with Medicare (CMS data updated October 2, 2026).
- 1845 W Orange Grove Rd, Suite 111Tucson, AZ 85704 (520) 623‑2642
- 2538 E University Dr, Suite 110Phoenix, AZ 85034 (623) 312‑3613
- 395 N Silverbell Rd, Suite 209Tucson, AZ 85745 (520) 623‑2642
- 9305 W Thomas Rd, Suite 255Phoenix, AZ 85037 (623) 247‑9235
Group practices
Medicare enrollment lists Gabriel El-Kass as a member of this group (CMS data updated October 2, 2026).
- Southwest Kidney Institute PLC101 clinicians in the group
Specialties
- Internal Medicineprimary
- Nephrologyalso
Other internal medicine doctors in Tucson
Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.
Other clinicians in Southwest Kidney Institute PLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1994 (32 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821295353 |
| 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