Quick answers
- Does Roy Marie A. Margallo accept Medicare assignment?
- Yes. Medicare's clinician data says Roy Marie A. Margallo 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 Roy Marie A. Margallo see?
- In 2024, CMS data shows 480 Original Medicare patients and 3,304 services for Roy Marie A. Margallo. This counts Original Medicare only and measures volume, not quality.
- What is Roy Marie A. Margallo's NPI number?
- 1538314950. 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 Roy Marie A. Margallo, 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 | 480 |
|---|---|
| Services billed to Medicare | 3,304 |
| Different services or procedures | 40 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)757 services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)619 services
- Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)240 services
- Removal of skin and tissue, 20.0 sq cm or less (11042)187 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)149 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%
- Arthritis64%
- Diabetes58%
- Chronic kidney disease54%
- Ischemic heart disease50%
Hospitals where Roy Marie A. Margallo works
Medicare's Facility Affiliation Data lists Roy Marie A. Margallo 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
- Summerlin Hospital Medical CenterLas Vegas, NV · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 290041
Practice locations
Addresses where Roy Marie A. Margallo is enrolled with Medicare (CMS data updated October 2, 2026).
- 10725 Prairie Wheat CtHenderson, NV 89052
- 222 S Rainbow Blvd, Suite 206Las Vegas, NV 89145 (702) 500‑1728
- 2255 Renaissance Dr, Suite BLas Vegas, NV 89119 (702) 500‑1728
- 2620 Acoma AvePahrump, NV 89048 (702) 500‑1728
Group practices
Medicare enrollment lists Roy Marie A. Margallo as a member of this group (CMS data updated October 2, 2026).
- Celestial Health Solutions5 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Henderson
Clinicians with the same Medicare primary specialty in Henderson, NV — not a recommendation.
Other clinicians in Celestial Health Solutions
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) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1538314950 |
| 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