Quick answers
- Does Samir Y. Dahdal accept Medicare assignment?
- Yes. Medicare's clinician data says Samir Y. Dahdal 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 Samir Y. Dahdal see?
- In 2024, CMS data shows 1,687 Original Medicare patients and 6,590 services for Samir Y. Dahdal. This counts Original Medicare only and measures volume, not quality.
- What is Samir Y. Dahdal's NPI number?
- 1578660015. 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 Samir Y. Dahdal, 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 | 1,687 |
|---|---|
| Services billed to Medicare | 6,590 |
| Different services or procedures | 65 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Injection, regadenoson, 0.1 mg (J2785)1,380 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)958 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)700 services
- Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries (A9555)640 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)556 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 disease59%
- Arthritis49%
- Chronic kidney disease34%
- Atrial fibrillation34%
Hospitals where Samir Y. Dahdal works
Medicare's Facility Affiliation Data lists Samir Y. Dahdal 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.
- Tucson Medical CenterTucson, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030006
Practice locations
Addresses where Samir Y. Dahdal is enrolled with Medicare (CMS data updated October 2, 2026).
- 4475 S I 19 Frontage Rd, Suite 125Green Valley, AZ 85614 (520) 838‑3540
- 5301 E Grant RdTucson, AZ 85712 (520) 327‑5461
Group practices
Medicare enrollment lists Samir Y. Dahdal as a member of these groups (CMS data updated October 2, 2026).
- Pima Heart Physicians PC65 clinicians in the group
- Tucson Medical Center29 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Arizona →
Other cardiologists in Green Valley
Clinicians with the same Medicare primary specialty in Green Valley, AZ — not a recommendation.
Other clinicians in Pima Heart Physicians PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578660015 |
| 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