Doctor profile · Federal record
Dr. Ronald Rivera, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medical Services (Emergency Medicine) Physician · Orange, CA
- NPI 1558716233
- Accepts Medicare
- 10 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
333 City Blvd W Ste 640
Orange, CA 928685915
(714) 509-7664 - Mailing address
-
11420 Santa Monica Blvd Unit 25724
Los Angeles, CA 900258845
Credentials & registration
- NPI registered
- April 2016 — 10 yrs on file
- Profile last updated
- November 30, 2020
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A169303
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1558716233. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
301
Distinct HCPCS
8
Medicare allowed
$38,221
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 89 | 89 | $184 | |
99284 |
Emergency department visit with moderate level of medical decision making | 67 | 67 | $127 | |
99291 |
Critical care, first 30-74 minutes | 45 | 45 | $226 | |
93308 |
Ultrasound of heart, follow-up | 26 | 26 | $27 | |
93042 |
Electrocardiogram (ecg) 1 to 3 leads with review by physician only | 24 | 22 | $7 | |
76705 |
Limited ultrasound scan of abdomen | 21 | 21 | $30 | |
99283 |
Emergency department visit with low level of medical decision making | 18 | 18 | $75 | |
76604 |
Ultrasound scan of chest | 11 | 11 | $28 |
In context: peer comparison
Among 51 peers in Orange Emergency Medicine Physician, average services per provider: 60. This provider delivers 5.0× the peer median.Frequently asked questions
What is Dr. Ronald Rivera's medical specialty?
Dr. Ronald Rivera practices Emergency Medicine Physician in Orange, CA.
Where does Dr. Ronald Rivera practice?
Dr. Ronald Rivera practices at 333 City Blvd W Ste 640, Orange, CA 928685915. Office phone: 7145097664.
What is Dr. Ronald Rivera's NPI?
Dr. Ronald Rivera's National Provider Identifier (NPI) is 1558716233, issued by NPPES.
Does Dr. Ronald Rivera accept Medicare assignment?
Yes. Dr. Ronald Rivera accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ronald Rivera 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.