Quick answers
- Does Nicholas Kalayeh accept Medicare assignment?
- Medicare's clinician data says Nicholas Kalayeh may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Nicholas Kalayeh see?
- In 2024, CMS data shows 1,499 Original Medicare patients and 6,844 services for Nicholas Kalayeh. This counts Original Medicare only and measures volume, not quality.
- What is Nicholas Kalayeh's NPI number?
- 1134335607. 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 Nicholas Kalayeh, 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 | 1,499 |
|---|---|
| Services billed to Medicare | 6,844 |
| Different services or procedures | 87 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)2,173 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)947 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)783 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)535 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)475 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%
- Ischemic heart disease54%
- Arthritis51%
- Heart failure50%
- Chronic kidney disease49%
Hospitals where Nicholas Kalayeh works
Medicare's Facility Affiliation Data lists Nicholas Kalayeh 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.
- Henderson HospitalHenderson, NV · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 290057
- Saint Rose Dominican Hospitals - San Martin CampusLas Vegas, NV · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 290053
- Saint Rose Dominican Hospitals - Siena CampusHenderson, NV · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 290045
- Spring Valley Hospital Medical CenterLas Vegas, NV · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 290046
- West Henderson HospitalHenderson, NV · Acute Care Hospital · Emergency services: listed by Medicare · CCN 290062
Practice locations
Addresses where Nicholas Kalayeh is enrolled with Medicare (CMS data updated October 2, 2026).
- 2641 W Horizon Ridge Pkwy, Suite 100Henderson, NV 89052 (602) 549‑9537
- 4275 Burnham Ave, Suite 220Las Vegas, NV 89119
Group practices
Medicare enrollment lists Nicholas Kalayeh as a member of these groups (CMS data updated October 2, 2026).
- Advanced Heart Care Associates -Plon, Spaccavento and Shehata M.D.S. LT7 clinicians in the group
- NK and Ai Enterprises LLP3 clinicians in the group
Specialties
Other interventional cardiologists in Henderson
Clinicians with the same Medicare primary specialty in Henderson, NV — not a recommendation.
Other clinicians in Advanced Heart Care Associates -Plon, Spaccavento and Shehata M.D.S. LT
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2001 (25 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1134335607 |
| 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