Dr. Nizar A. Assi, MD
Cardiology (Cardiovascular Disease Physician)
10012 Kennerly Rd, Suite 301
Saint Louis, MO 63128
Who else practices at this address →
St. Louis County includes dental (1% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Years since graduation
- 41
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 234
Licensed in Illinois since 1987, according to the Illinois Department of Financial and Professional Regulation. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Cardiovascular Disease Physician primary
MO license R5N90 · IL license 036076345 (first issued 1987; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Mercy Hospital Fort Smith Fort Smith, AR
Medical groups
- Mercy Clinic Fort Smith Communities (372 clinicians)
- Fands Physical Therapy, Inc (221 clinicians)
- Peaks Medical PC (4 clinicians)
- Peaks Urgent Care PC (2 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 234
- Services billed
- 597
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 3,290 | 32 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 144 | 131 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days | 118 | 77 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 104 | 55 |
| Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec | 102 | 50 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 102 | 84 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | 82 | 55 |
| Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days | 67 | 32 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 66 | 66 |
| Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | 62 | 60 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Atorvastatin Calcium Other prescribers in Saint Louis, MO | 98 |
| Clopidogrel (clopidogrel bisulfate) Other prescribers in Saint Louis, MO | 85 |
| Carvedilol Other prescribers in Saint Louis, MO | 84 |
| Isosorbide Mononitrate Er (isosorbide mononitrate) Other prescribers in Saint Louis, MO | 80 |
| Eliquis (apixaban) Other prescribers in Saint Louis, MO | 76 |
| Metoprolol Succinate Other prescribers in Saint Louis, MO | 70 |
| Amlodipine Besylate Other prescribers in Saint Louis, MO | 61 |
| Metoprolol Tartrate Other prescribers in Saint Louis, MO | 46 |
| Furosemide Other prescribers in Saint Louis, MO | 44 |
| Lisinopril Other prescribers in Saint Louis, MO | 37 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 7 companies reported 49 payments worth $3,132 in total to this clinician.
| Medtronic, Inc. | $2,303 |
|---|---|
| Abiomed | $445 |
| Kestra Medical Technology Services, Inc. | $157 |
| Boston Scientific Corporation | $125 |
| Novartis Pharmaceuticals Corporation | $55.75 |
| Zoll Services LLC (a/k/a Zoll Lifecor Corp) | $32.13 |
| Asahi Intecc USA, Inc. | $14.92 |
| Food and Beverage | $1,844 |
|---|---|
| Travel and Lodging | $1,288 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Medtronic, Inc. Sep 12, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $400 |
| Medtronic, Inc. Sep 12, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $299 |
| Medtronic, Inc. Sep 13, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $299 |
| Medtronic, Inc. Oct 7, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $95.56 |
| Medtronic, Inc. Sep 12, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $52.58 |
| Medtronic, Inc. Sep 13, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $52.58 |
| Medtronic, Inc. Sep 14, 2025 | Travel and Lodging OMNIASECURE MRI SURESCAN · Leads · travel to Nashville, TN · in-kind | $24.53 |
| Medtronic, Inc. Sep 12, 2025 | Travel and Lodging OMNIASECURE MRI SURESCAN · Leads · travel to Nashville, TN · in-kind | $17.13 |
| Medtronic, Inc. Sep 13, 2025 | Travel and Lodging OMNIASECURE MRI SURESCAN · Leads · travel to Nashville, TN · in-kind | $13.36 |
| Medtronic, Inc. Sep 14, 2025 | Travel and Lodging OMNIASECURE MRI SURESCAN · Leads · travel to Nashville, TN · in-kind | $11.18 |
All 13 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Medtronic, Inc. Oct 7, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $95.56 |
| Medtronic, Inc. Sep 14, 2025 | Travel and Lodging OMNIASECURE MRI SURESCAN · Leads · travel to Nashville, TN · in-kind | $24.53 |
| Medtronic, Inc. Sep 14, 2025 | Travel and Lodging OMNIASECURE MRI SURESCAN · Leads · travel to Nashville, TN · in-kind | $11.18 |
| Medtronic, Inc. Sep 14, 2025 | Travel and Lodging OMNIASECURE MRI SURESCAN · Leads · travel to Nashville, TN · in-kind | $10.56 |
| Medtronic, Inc. Sep 14, 2025 | Travel and Lodging OMNIASECURE MRI SURESCAN · Leads · travel to Nashville, TN · in-kind | $3.68 |
| Medtronic, Inc. Sep 13, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $299 |
| Medtronic, Inc. Sep 13, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $52.58 |
| Medtronic, Inc. Sep 13, 2025 | Travel and Lodging OMNIASECURE MRI SURESCAN · Leads · travel to Nashville, TN · in-kind | $13.36 |
| Medtronic, Inc. Sep 13, 2025 | Travel and Lodging OMNIASECURE MRI SURESCAN · Leads · travel to Nashville, TN · in-kind | $8.88 |
| Medtronic, Inc. Sep 12, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $400 |
| Medtronic, Inc. Sep 12, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $299 |
| Medtronic, Inc. Sep 12, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $52.58 |
| Medtronic, Inc. Sep 12, 2025 | Travel and Lodging OMNIASECURE MRI SURESCAN · Leads · travel to Nashville, TN · in-kind | $17.13 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.