Doctor profile · Federal record
Dr. Christopher Chang, MD
Anesthesiology Physician (CMS: Anesthesiology) · Irvine, CA
- NPI 1881632750
- Accepts Medicare
- 35 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3500 Barranca Pkwy Ste 130
Irvine, CA 926068227
(949) 552-6266
fax (949) 552-5038 - Mailing address
-
27401 Los Altos, 180
Mission Viejo, CA 926916316
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- April 29, 2019
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 207L00000X — NUCC code
- State license (1)
- California #G75772
- Medicaid
- CA #00G757720
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1881632750. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
195
Distinct HCPCS
7
Medicare allowed
$29,990
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
00142 |
Anesthesia for lens surgery | 97 | 93 | $135 | |
00145 |
Anesthesia for retinal surgery | 21 | 21 | $201 | |
00140 |
Anesthesia for other procedure on eye | 18 | 18 | $178 | |
00103 |
Anesthesia for procedure on eyelid | 17 | 17 | $214 | |
00811 |
Anesthesia for other procedure on large bowel using an endoscope | 17 | 17 | $125 | |
00813 |
Anesthesia for procedure on small and large bowel using an endoscope | 14 | 14 | $161 | |
00731 |
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 11 | 11 | $128 |
In context: peer comparison
Among 5 peers in Irvine Anesthesiology Physician, average services per provider: 21. This provider delivers 9.3× the peer median.Frequently asked questions
What is Dr. Christopher Chang's medical specialty?
Dr. Christopher Chang practices Anesthesiology Physician in Irvine, CA.
Where does Dr. Christopher Chang practice?
Dr. Christopher Chang practices at 3500 Barranca Pkwy Ste 130, Irvine, CA 926068227. Office phone: 9495526266.
What is Dr. Christopher Chang's NPI?
Dr. Christopher Chang's National Provider Identifier (NPI) is 1881632750, issued by NPPES.
Does Dr. Christopher Chang accept Medicare assignment?
Yes. Dr. Christopher Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Christopher Chang commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for lens surgery (HCPCS 00142); Anesthesia for retinal surgery (HCPCS 00145); Anesthesia for other procedure on eye (HCPCS 00140). Source: CMS Medicare Physician & Other Practitioners file.