Doctor profile · Federal record
Dr. Eugene Ahn, M.D.
Medical Oncology Physician (CMS: Medical Oncology) · Medical Oncology Physician · Chicago, IL
- NPI 1093911307
- Accepts Medicare
- 29 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2361 Paysphere Cir
Chicago, IL 60674
(847) 746-4358
fax (847) 731-1017 - Mailing address
-
2520 Elisha Ave
Zion, IL 60099
Credentials & registration
- NPI registered
- June 2007 — 19 yrs on file
- Profile last updated
- October 26, 2016
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 207RX0202X — NUCC code
- State licenses (2)
- Illinois #036.136519 · Florida #ME92099
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1093911307. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
239
Distinct HCPCS
4
Medicare allowed
$25,607
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 169 | 94 | $100 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 34 | 26 | $145 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 25 | 25 | $68 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 11 | 11 | $188 |
In context: peer comparison
Among 25 peers in this city , average services per provider: 1,025. This provider delivers 0.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
181
Patients
23
Total drug cost
$4,620
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Letrozole | Generic | 92 | 23 | $2,595 |
| Anastrozole | Generic | 37 | 0 | $1,280 |
| Tamoxifen Citrate | Generic | 30 | 0 | $634 |
| Omeprazole | Generic | 11 | 0 | $86 |
| Prednisone | Generic | 11 | 0 | $26 |
Frequently asked questions
What is Dr. Eugene Ahn's medical specialty?
Dr. Eugene Ahn practices Medical Oncology Physician in Chicago, IL.
Where does Dr. Eugene Ahn practice?
Dr. Eugene Ahn practices at 2361 Paysphere Cir, Chicago, IL 60674. Office phone: 8477464358.
What is Dr. Eugene Ahn's NPI?
Dr. Eugene Ahn's National Provider Identifier (NPI) is 1093911307, issued by NPPES.
Does Dr. Eugene Ahn accept Medicare assignment?
Yes. Dr. Eugene Ahn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Eugene Ahn commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.