Doctor profile · Federal record
Dr. Dennis Ryan, M.D.
Emergency Medicine Physician · Oak Lawn, IL
- NPI 1083626378
- 20 yrs on file
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
4440 W 95Th St
Oak Lawn, IL 604532600
(708) 684-8000 - Mailing address
-
29373 Network Pl
Chicago, IL 606731293
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- June 2, 2022
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Illinois #036113502
- Medicaid
- IL #36113502
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083626378. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
218
Distinct HCPCS
4
Medicare allowed
$36,825
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 134 | 134 | $186 | |
99284 |
Emergency department visit with moderate level of medical decision making | 45 | 45 | $127 | |
99291 |
Critical care, first 30-74 minutes | 21 | 21 | $226 | |
99283 |
Emergency department visit with low level of medical decision making | 18 | 15 | $78 |
In context: peer comparison
Among 49 peers in Oak Lawn Emergency Medicine Physician, average services per provider: 79. This provider delivers 2.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
13
Patients
13
Total drug cost
$56
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 13 | 13 | $56 |
Frequently asked questions
What is Dr. Dennis Ryan's medical specialty?
Dr. Dennis Ryan practices Emergency Medicine Physician in Oak Lawn, IL.
Where does Dr. Dennis Ryan practice?
Dr. Dennis Ryan practices at 4440 W 95Th St, Oak Lawn, IL 604532600. Office phone: 7086848000.
What is Dr. Dennis Ryan's NPI?
Dr. Dennis Ryan's National Provider Identifier (NPI) is 1083626378, issued by NPPES.
What procedures does Dr. Dennis Ryan commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.