Doctor profile · Federal record
Dr. Bassim Assioun, M.D.
Nephrology Physician (CMS: Nephrology) · Student in an Organized Health Care Education/Training Program · O Fallon, IL
- NPI 1669785408
- Accepts Medicare
- MIPS 92.6 / 100 · 2023
- 18 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3 Saint Elizabeth Blvd Ste 5000
O Fallon, IL 622691282
(618) 641-5803
fax (618) 607-5116
Credentials & registration
- NPI registered
- July 2010 — 16 yrs on file
- Profile last updated
- October 7, 2020
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State licenses (2)
- Illinois #036137061 · Missouri #2010015148
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669785408. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,467
Distinct HCPCS
10
Medicare allowed
$321,866
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 823 | 212 | $81 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 452 | 329 | $127 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 316 | 111 | $121 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 177 | 146 | $177 | |
90962 |
Dialysis services, 1 physician visit per month (20 years or older) | 155 | 45 | $203 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 150 | 37 | $296 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 102 | 102 | $164 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 86 | 80 | $133 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 80 | 60 | $180 | |
90935 |
Hemodialysis procedure with physician evaluation | 73 | 42 | $73 |
In context: peer comparison
Among 1 peers in O Fallon Nephrology Physician, average services per provider: 205. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$239
Transactions
3
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novo Nordisk INC | 2 | $224.44 | |
| AstraZeneca Pharmaceuticals Lp | 1 | $14.71 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,461
Patients
801
Total drug cost
$240,549
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Allopurinol | Generic | 572 | 163 | $8,367 |
| Furosemide | Generic | 246 | 83 | $2,318 |
| Lisinopril | Generic | 201 | 80 | $1,603 |
| Amlodipine Besylate | Generic | 192 | 72 | $1,579 |
| Calcitriol | Generic | 165 | 46 | $3,476 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 153 | 42 | $198,831 |
| Losartan Potassium | Generic | 150 | 53 | $2,094 |
| Carvedilol | Generic | 129 | 41 | $1,478 |
| Potassium Chloride | Generic | 120 | 44 | $3,765 |
| Hydrochlorothiazide | Generic | 113 | 37 | $764 |
Frequently asked questions
What is Dr. Bassim Assioun's medical specialty?
Dr. Bassim Assioun practices Nephrology Physician in O Fallon, IL.
Where does Dr. Bassim Assioun practice?
Dr. Bassim Assioun practices at 3 Saint Elizabeth Blvd Ste 5000, O Fallon, IL 622691282. Office phone: 6186415803.
What is Dr. Bassim Assioun's NPI?
Dr. Bassim Assioun's National Provider Identifier (NPI) is 1669785408, issued by NPPES.
Does Dr. Bassim Assioun accept Medicare assignment?
Yes. Dr. Bassim Assioun accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Bassim Assioun commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.