Doctor profile · Federal record
Dr. Joseph Ahn, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Round Lake, IL
- NPI 1487789863
- Accepts Medicare
- 20 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
308 W Biros Ln
Round Lake, IL 600735607
(734) 846-1733
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- September 24, 2012
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Delaware #C70003552
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1487789863. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
57
Distinct HCPCS
2
Medicare allowed
$7,968
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 29 | 28 | $115 | |
99285 |
Emergency department visit with high level of medical decision making | 28 | 28 | $165 |
In context: peer comparison
Among 1 peers in Round Lake Emergency Medicine Physician, average services per provider: 28. This provider delivers 2.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
70
Patients
69
Total drug cost
$685
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ondansetron Hcl | Generic | 15 | 15 | $92 |
| Ondansetron Odt (Ondansetron) | Brand | 15 | 15 | $187 |
| Cephalexin | Generic | 14 | 14 | $223 |
| Prednisone | Generic | 14 | 13 | $48 |
| Paxlovid (Eua) (Nirmatrelvir/Ritonavir) | Brand | 12 | 12 | $135 |
Frequently asked questions
What is Dr. Joseph Ahn's medical specialty?
Dr. Joseph Ahn practices Emergency Medicine Physician in Round Lake, IL.
Where does Dr. Joseph Ahn practice?
Dr. Joseph Ahn practices at 308 W Biros Ln, Round Lake, IL 600735607. Office phone: 7348461733.
What is Dr. Joseph Ahn's NPI?
Dr. Joseph Ahn's National Provider Identifier (NPI) is 1487789863, issued by NPPES.
Does Dr. Joseph Ahn accept Medicare assignment?
Yes. Dr. Joseph Ahn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joseph Ahn commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285). Source: CMS Medicare Physician & Other Practitioners file.