Quick answers
- Does Tarek H. Mahrous accept Medicare assignment?
- Yes. Medicare's clinician data says Tarek H. Mahrous 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 Tarek H. Mahrous see?
- In 2024, CMS data shows 1,633 Original Medicare patients and 3,793 services for Tarek H. Mahrous. This counts Original Medicare only and measures volume, not quality.
- What is Tarek H. Mahrous's NPI number?
- 1225046436. 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 Tarek H. Mahrous, 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 | 1,633 |
|---|---|
| Services billed to Medicare | 3,793 |
| Different services or procedures | 57 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)913 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)306 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)300 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)297 services
- Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)218 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 disease53%
- Arthritis43%
- Heart failure37%
- Diabetes36%
Hospitals where Tarek H. Mahrous works
Medicare's Facility Affiliation Data lists Tarek H. Mahrous 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.
- Avera Gregory HospitalGregory, SD · Critical Access Hospital · Emergency services: listed by Medicare · CCN 431338
- Avera Heart Hospital of South DakotaSioux Falls, SD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 430095
- Avera McKennan Hospital & University Health CenterSioux Falls, SD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 430016
- Avera St Mary's HospitalPierre, SD · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 430015
- Spencer Municipal HospitalSpencer, IA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 160112
Practice locations
Addresses where Tarek H. Mahrous is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1101 9th St SE, Nch Sioux Center Medical ClinicSioux Center, IA 51250 (712) 722‑2609
- 116 E 10th St, Suite 101Spencer, IA 51301 (712) 264‑3500
- 1325 S Cliff AveSioux Falls, SD 57105
- 300 S Bruce StMarshall, MN 56258 (507) 537‑9007
- 4500 W 69th StSioux Falls, SD 57108 (605) 977‑7000
Group practices
Medicare enrollment lists Tarek H. Mahrous as a member of this group (CMS data updated October 2, 2026).
- Heart Hospital of South Dakota LLC67 clinicians in the group
Specialties
- Interventional Cardiologyprimary
Other interventional cardiologists in Iowa
Clinicians with the same Medicare primary specialty in Iowa — not a recommendation.
Other clinicians in Heart Hospital of South Dakota LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225046436 |
| 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