Doctor profile · Federal record
Dr. Eugene Yen, MD
Gastroenterology Physician (CMS: Gastroenterology) · Evanston, IL
- NPI 1508944018
- Accepts Medicare
- MIPS 91.3 / 100 · 2023
- 25 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
2650 Ridge Ave, Suite G221
Evanston, IL 602011718
(847) 657-1900
fax (847) 733-5041 - Additional location
-
259 E Erie St Ste 1600
Chicago, IL 606113111
(312) 695-5620
fax (312) 695-2310
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- February 1, 2024
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Illinois #036-117818
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1508944018. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
331
Distinct HCPCS
10
Medicare allowed
$49,101
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 68 | 49 | $135 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 58 | 58 | $270 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 36 | 28 | $104 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 34 | 32 | $167 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 28 | 27 | $106 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 21 | 17 | $83 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 20 | 19 | $138 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 20 | 15 | $53 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 17 | 17 | $143 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 15 | 15 | $95 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 58. This provider delivers 5.7× the peer median.Open Payments
Industry payments received
All-time total
$70,450
Transactions
83
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 37 | $31,412.89 | |
| Janssen Biotech, Inc. | 28 | $29,151.76 | |
| Janssen Scientific Affairs, LLC | 10 | $9,619.67 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 4 | $119.53 | |
| Celltrion USA Inc. | 1 | $65.86 | |
| Sandoz Inc. | 1 | $29.16 | |
| Celgene Corporation | 1 | $29.12 | |
| PFIZER INC. | 1 | $22.41 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
406
Patients
168
Total drug cost
$1,495,163
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Stelara (Ustekinumab) | Brand | 53 | 14 | $1,417,473 |
| Budesonide Dr (Budesonide) | Brand | 51 | 19 | $6,007 |
| Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) | Brand | 36 | 34 | $6,576 |
| Mesalamine | Generic | 34 | 14 | $38,218 |
| Dicyclomine Hcl | Generic | 28 | 14 | $538 |
| Cholestyramine (Cholestyramine (With Sugar)) | Brand | 27 | 12 | $3,765 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 27 | 27 | $572 |
| Budesonide Ec (Budesonide) | Brand | 24 | 14 | $16,629 |
| Sulfasalazine | Generic | 24 | 0 | $631 |
| Colestipol Hcl | Generic | 20 | 0 | $1,612 |
Hospital affiliations
Frequently asked questions
What is Dr. Eugene Yen's medical specialty?
Dr. Eugene Yen practices Gastroenterology Physician in Evanston, IL.
Where does Dr. Eugene Yen practice?
Dr. Eugene Yen practices at 2650 Ridge Ave, Evanston, IL 602011718. Office phone: 8476571900.
What is Dr. Eugene Yen's NPI?
Dr. Eugene Yen's National Provider Identifier (NPI) is 1508944018, issued by NPPES.
Does Dr. Eugene Yen accept Medicare assignment?
Yes. Dr. Eugene Yen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Eugene Yen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.