Doctor profile · Federal record
Dr. Kenji Oyasu, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Substance Use Disorder Rehabilitation Clinic/Center · Personal Emergency Response Attendant · Waukegan, IL
- NPI 1487768552
- Accepts Medicare
- MIPS 76.9 / 100 · 2023
- 33 yrs in practice
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1324 N Sheridan RD Dept of
Waukegan, IL 60085
(847) 360-3000 - Additional location
-
111 S Washington Ave Ste 202
Park Ridge, IL 600684293
(847) 423-6800
fax (847) 972-6533
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- March 9, 2020
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (3)
- Indiana #01066275A · Illinois #XO9045027 · Illinois #036092087
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1487768552. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
219
Distinct HCPCS
3
Medicare allowed
$36,720
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 129 | 122 | $181 | |
99284 |
Emergency department visit with moderate level of medical decision making | 67 | 66 | $124 | |
99291 |
Critical care, first 30-74 minutes | 23 | 23 | $221 |
In context: peer comparison
Among 3 peers in Waukegan Emergency Medicine Physician, average services per provider: 93. This provider delivers 2.4× the peer median.Open Payments
Industry payments received
All-time total
$379
Transactions
22
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Braeburn INC. | 13 | $154.95 | |
| Galderma Laboratories, L.P. | 2 | $84.78 | |
| Uswm, LLC | 3 | $66.29 | |
| Indivior INC. | 2 | $40.07 | |
| Abbvie INC. | 1 | $19.27 | |
| Orexo US, INC. | 1 | $13.61 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
107
Patients
72
Total drug cost
$2,397
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Methylprednisolone | Generic | 27 | 26 | $225 |
| Buprenorphine Hcl | Generic | 21 | 0 | $1,579 |
| Acetaminophen-Codeine (Acetaminophen With Codeine) | Brand | 19 | 19 | $53 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 14 | 14 | $357 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 13 | 13 | $56 |
| Ondansetron Odt (Ondansetron) | Brand | 13 | 0 | $126 |
Hospital affiliations
Frequently asked questions
What is Dr. Kenji Oyasu's medical specialty?
Dr. Kenji Oyasu practices Emergency Medicine Physician in Waukegan, IL.
Where does Dr. Kenji Oyasu practice?
Dr. Kenji Oyasu practices at 1324 N Sheridan RD Dept of, Waukegan, IL 60085. Office phone: 8473603000.
What is Dr. Kenji Oyasu's NPI?
Dr. Kenji Oyasu's National Provider Identifier (NPI) is 1487768552, issued by NPPES.
Does Dr. Kenji Oyasu accept Medicare assignment?
Yes. Dr. Kenji Oyasu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kenji Oyasu 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.