Doctor profile · Federal record
Dr. Darrien Gaston, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Chicago, IL
- NPI 1023234143
- Accepts Medicare
- 42 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
10444 S Western Ave, Suite A
Chicago, IL 606432508
(773) 238-1126
Credentials & registration
- NPI registered
- April 2007 — 19 yrs on file
- Profile last updated
- January 4, 2022
- Year of graduation
- 1984 — 42 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Illinois #036071497
- Medicaid
- IL #036071497
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1023234143. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
194
Distinct HCPCS
8
Medicare allowed
$29,389
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99203 |
New patient office or other outpatient visit, 30-44 minutes | 55 | 55 | $119 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 41 | 31 | $94 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 25 | 25 | $150 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 24 | 19 | $59 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 14 | 14 | $190 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 12 | 12 | $219 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 12 | 12 | $269 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 11 | 11 | $481 |
In context: peer comparison
Among 70 peers in Chicago Gastroenterology Physician, average services per provider: 239. This provider delivers 0.8× the peer median.Open Payments
Industry payments received
All-time total
$15
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Ardelyx, INC. | 1 | $15.31 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
79
Patients
62
Total drug cost
$1,698
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 63 | 62 | $1,507 |
| Pantoprazole Sodium | Generic | 16 | 0 | $192 |
Hospital affiliations
Frequently asked questions
What is Dr. Darrien Gaston's medical specialty?
Dr. Darrien Gaston practices Gastroenterology Physician in Chicago, IL.
Where does Dr. Darrien Gaston practice?
Dr. Darrien Gaston practices at 10444 S Western Ave, Chicago, IL 606432508. Office phone: 7732381126.
What is Dr. Darrien Gaston's NPI?
Dr. Darrien Gaston's National Provider Identifier (NPI) is 1023234143, issued by NPPES.
Does Dr. Darrien Gaston accept Medicare assignment?
Yes. Dr. Darrien Gaston accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Darrien Gaston commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99203); Established patient office or other outpatient visit (HCPCS 99213); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.