Doctor profile · Federal record
Dr. Rosemarie Diaz
Emergency Medicine Physician · Santa Monica, CA
- NPI 1215317441
- MIPS 93.2 / 100 · 2023
- 11 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1250 16Th St
Santa Monica, CA 904041249
(310) 794-7700 - Additional location
-
757 Westwood Plz Ste 1517
Los Angeles, CA 900955000
(310) 825-9111 - Mailing address
-
5767 W Century Blvd Ste 400
Los Angeles, CA 900455631
Credentials & registration
- NPI registered
- June 2015 — 11 yrs on file
- Profile last updated
- April 12, 2023
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A171845
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215317441. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
199
Distinct HCPCS
4
Medicare allowed
$31,178
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 100 | 99 | $184 | |
99284 |
Emergency department visit with moderate level of medical decision making | 68 | 68 | $127 | |
99283 |
Emergency department visit with low level of medical decision making | 19 | 19 | $75 | |
99291 |
Critical care, first 30-74 minutes | 12 | 12 | $226 |
In context: peer comparison
Among 21 peers in this city , average services per provider: 107. This provider delivers 1.9× the peer median.Frequently asked questions
What is Dr. Rosemarie Diaz's medical specialty?
Dr. Rosemarie Diaz practices Emergency Medicine Physician in Santa Monica, CA.
Where does Dr. Rosemarie Diaz practice?
Dr. Rosemarie Diaz practices at 1250 16Th St, Santa Monica, CA 904041249. Office phone: 3107947700.
What is Dr. Rosemarie Diaz's NPI?
Dr. Rosemarie Diaz's National Provider Identifier (NPI) is 1215317441, issued by NPPES.
What procedures does Dr. Rosemarie Diaz 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); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.