Doctor profile · Federal record
Dr. Ernest Dejesus, MD
Nephrology Physician (CMS: Nephrology) · Winfield, IL
- NPI 1295737088
- 26 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
25 Winfield Road, Suite 414
Winfield, IL 60190
(630) 690-1220
fax (630) 690-5323 - Additional location
-
302 Randall RD
Geneva, IL 601344209
fax (630) 208-1667 - Mailing address
-
120 W 22Nd St, Ste 200
Oak Brook, IL 605231563
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- August 4, 2025
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Illinois #036.109525
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1295737088. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,070
Distinct HCPCS
10
Medicare allowed
$517,461
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 1,009 | 302 | $81 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 464 | 166 | $123 | |
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 408 | 51 | $360 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 212 | 36 | $57 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 189 | 159 | $134 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 138 | 129 | $177 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 137 | 115 | $77 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 127 | 90 | $100 | |
90966 |
Home dialysis services per month (20 years or older) | 100 | 13 | $301 | |
36902 |
Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist | 51 | 42 | $1,228 |
In context: peer comparison
Among 5 peers in Winfield Nephrology Physician, average services per provider: 181. This provider delivers 17× the peer median.Open Payments
Industry payments received
All-time total
$853
Transactions
32
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen INC. | 6 | $157.65 | |
| Vifor Pharma, INC. | 4 | $102.89 | |
| Otsuka America Pharmaceutical, INC. | 3 | $77.46 | |
| Novartis Pharmaceuticals Corporation | 3 | $74.22 | |
| AstraZeneca Pharmaceuticals Lp | 3 | $67.98 | |
| Nxstage Medical, INC. | 2 | $52.05 | |
| Calliditas Therapeutics US INC. | 2 | $41.28 | |
| Ardelyx, INC. | 2 | $34.85 | |
| Bard Peripheral Vascular, INC. | 1 | $32.69 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $30.77 | |
| Travere Therapeutics, INC. | 1 | $29.52 | |
| Lilly USA, LLC | 1 | $28.62 | |
| Fresenius USA Marketing, INC. | 1 | $28.12 | |
| Otsuka Pharmaceutical Development & Commercialization, INC. | 1 | $25.53 | |
| Bayer Healthcare Pharmaceuticals INC. | 1 | $22.59 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
886
Patients
316
Total drug cost
$75,262
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 114 | 41 | $1,673 |
| Prednisone | Generic | 90 | 39 | $253 |
| Bumetanide | Generic | 70 | 29 | $5,676 |
| Furosemide | Generic | 69 | 25 | $549 |
| Carvedilol | Generic | 66 | 22 | $1,044 |
| Chlorthalidone | Generic | 58 | 19 | $1,211 |
| Lisinopril | Generic | 54 | 20 | $662 |
| Hydralazine Hcl | Generic | 52 | 18 | $1,472 |
| Hydrochlorothiazide | Generic | 50 | 13 | $198 |
| Olmesartan Medoxomil | Generic | 50 | 17 | $1,294 |
Hospital affiliations
Frequently asked questions
What is Dr. Ernest Dejesus's medical specialty?
Dr. Ernest Dejesus practices Nephrology Physician in Winfield, IL.
Where does Dr. Ernest Dejesus practice?
Dr. Ernest Dejesus practices at 25 Winfield Road, Winfield, IL 60190. Office phone: 6306901220.
What is Dr. Ernest Dejesus's NPI?
Dr. Ernest Dejesus's National Provider Identifier (NPI) is 1295737088, issued by NPPES.
Does Dr. Ernest Dejesus accept Medicare assignment?
Dr. Ernest Dejesus does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Ernest Dejesus commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960). Source: CMS Medicare Physician & Other Practitioners file.