Quick answers
- Does Alexander G. Kassar accept Medicare assignment?
- Yes. Medicare's clinician data says Alexander G. Kassar 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 Alexander G. Kassar see?
- In 2024, CMS data shows 955 Original Medicare patients and 4,673 services for Alexander G. Kassar. This counts Original Medicare only and measures volume, not quality.
- What is Alexander G. Kassar's NPI number?
- 1588008767. 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 Alexander G. Kassar, 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 | 955 |
|---|---|
| Services billed to Medicare | 4,673 |
| Different services or procedures | 44 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,488 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)1,351 services
- Critical care, first 30-74 minutes (99291)510 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)260 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)239 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%
- Diabetes62%
- Heart failure58%
- Chronic kidney disease55%
- Ischemic heart disease50%
Hospitals where Alexander G. Kassar works
Medicare's Facility Affiliation Data lists Alexander G. Kassar 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.
- Chino Valley Medical CenterChino, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050586
- Emanate Health Foothill Presbyterian HospitalGlendora, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050597
- Emanate Health Inter-Community HospitalCovina, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050382
- Montclair Hospital Medical CenterMontclair, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050758
- San Antonio Regional HospitalUpland, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050099
Practice locations
Addresses where Alexander G. Kassar is enrolled with Medicare (CMS data updated October 2, 2026).
- 250 S Grand AveGlendora, CA 91741 (626) 857‑3287
- 500 N Euclid AveUpland, CA 91786 (626) 914‑5219
- 999 San Bernardino RdUpland, CA 91786 (909) 920‑4745
Group practices
Medicare enrollment lists Alexander G. Kassar as a member of this group (CMS data updated October 2, 2026).
- California Pulmonary Associates Inc7 clinicians in the group
Specialties
- Pulmonary Diseaseprimary
Other pulmonologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in California Pulmonary Associates Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Missouri, Kansas City, School Of Medicine |
| Graduation year | 2013 (13 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) | 1588008767 |
| 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