Quick answers
- Does Issa G. Alesh accept Medicare assignment?
- Yes. Medicare's clinician data says Issa G. Alesh 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 Issa G. Alesh see?
- In 2024, CMS data shows 1,193 Original Medicare patients and 2,978 services for Issa G. Alesh. This counts Original Medicare only and measures volume, not quality.
- What is Issa G. Alesh's NPI number?
- 1750319778. 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 Issa G. Alesh, 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 | 1,193 |
|---|---|
| Services billed to Medicare | 2,978 |
| Different services or procedures | 48 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,257 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)325 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)309 services
- Injection, regadenoson, 0.1 mg (J2785)188 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)181 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%
- Diabetes57%
- Arthritis50%
- Heart failure48%
- Ischemic heart disease45%
Hospitals where Issa G. Alesh works
Medicare's Facility Affiliation Data lists Issa G. Alesh 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.
- Bear Valley Community HospitalBig Bear Lake, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051335
- Community Hospital of San BernardinoSan Bernardino, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050089
- Kaiser Foundation Hospital Fontana/OntarioFontana, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050140
- Loma Linda University Medical CenterLoma Linda, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050327
- St Bernardine Medical CenterSan Bernardino, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050129
Practice locations
Addresses where Issa G. Alesh is enrolled with Medicare (CMS data updated October 2, 2026).
- 10601 Church St, Suite 105Rancho Cucamonga, CA 91730 (909) 881‑7400
- 6950 Brockton Ave, Suite 1Riverside, CA 92506 (951) 684‑6464
Group practices
Medicare enrollment lists Issa G. Alesh as a member of this group (CMS data updated October 2, 2026).
- Inland Empire Cardiovascular Consultants Inc8 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in Rancho Cucamonga
Clinicians with the same Medicare primary specialty in Rancho Cucamonga, CA — not a recommendation.
Other clinicians in Inland Empire Cardiovascular Consultants Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1750319778 |
| 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