Doctor profile · Federal record
Dr. Brian Chang
Emergency Medicine Physician (CMS: Emergency Medicine) · General Acute Care Hospital · San Francisco, CA
- NPI 1164840013
- Accepts Medicare
- MIPS 89.7 / 100 · 2023
- 12 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
521 Parnassus Ave
San Francisco, CA 941432206
(415) 353-1550 - Mailing address
-
505 Parnassus Ave M-24
San Francisco, CA 94010
Credentials & registration
- NPI registered
- March 2014 — 12 yrs on file
- Profile last updated
- February 11, 2022
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #141050
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1164840013. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
212
Distinct HCPCS
4
Medicare allowed
$34,587
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 119 | 116 | $183 | |
99284 |
Emergency department visit with moderate level of medical decision making | 45 | 45 | $125 | |
99291 |
Critical care, first 30-74 minutes | 31 | 30 | $226 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 17 | 17 | $8 |
In context: peer comparison
Among 87 peers in San Francisco Emergency Medicine Physician, average services per provider: 91. This provider delivers 2.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
11
Patients
11
Total drug cost
$61
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 11 | 11 | $61 |
Frequently asked questions
What is Dr. Brian Chang's medical specialty?
Dr. Brian Chang practices Emergency Medicine Physician in San Francisco, CA.
Where does Dr. Brian Chang practice?
Dr. Brian Chang practices at 521 Parnassus Ave, San Francisco, CA 941432206. Office phone: 4153531550.
What is Dr. Brian Chang's NPI?
Dr. Brian Chang's National Provider Identifier (NPI) is 1164840013, issued by NPPES.
Does Dr. Brian Chang accept Medicare assignment?
Yes. Dr. Brian Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brian Chang 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.