Quick answers
- Does Leo Polosajian accept Medicare assignment?
- Yes. Medicare's clinician data says Leo Polosajian 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 Leo Polosajian see?
- In 2024, CMS data shows 1,651 Original Medicare patients and 38,451 services for Leo Polosajian. This counts Original Medicare only and measures volume, not quality.
- What is Leo Polosajian's NPI number?
- 1174664783. 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 Leo Polosajian, 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 | 1,651 |
|---|---|
| Services billed to Medicare | 38,451 |
| Different services or procedures | 214 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)6,438 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)2,422 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)2,339 services
- Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)1,982 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)1,351 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%
- Arthritis75%
- Ischemic heart disease70%
- Diabetes63%
- Heart failure54%
Hospitals where Leo Polosajian works
Medicare's Facility Affiliation Data lists Leo Polosajian 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.
- Northridge Hospital Medical CenterNorthridge, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050116
- Providence Cedars Sinai Tarzana Medical CenterTarzana, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050761
Practice locations
Addresses where Leo Polosajian is enrolled with Medicare (CMS data updated October 2, 2026).
- 7640 Tampa Ave, Suite 101Reseda, CA 91335 (818) 718‑1600
- 7640 Tampa Ave, Suite 101aReseda, CA 91335 (818) 718‑1600
Group practices
Medicare enrollment lists Leo Polosajian as a member of these groups (CMS data updated October 2, 2026).
- Leo Polosajian MD a Professional Med Corp3 clinicians in the group
- Mid Valley Vascular Center, Inc2 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Leo Polosajian MD a Professional Med Corp
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) | 1174664783 |
| 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