Doctor profile · Federal record
Dr. Wun-Ling Chang, M.D.
Infectious Disease Physician (CMS: Infectious Disease) · La Jolla, CA
- NPI 1194734111
- Accepts Medicare
- 38 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
9888 Genesee Ave
La Jolla, CA 920371205
(858) 202-1736
fax (858) 202-1796 - Mailing address
-
3525 del Mar Heights RD # 453
San Diego, CA 921302122
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- January 27, 2008
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207RI0200X — NUCC code
- State license (1)
- California #G86459
- Medicaid
- CA #00G864590
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1194734111. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
397
Distinct HCPCS
4
Medicare allowed
$52,249
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 290 | 61 | $123 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 62 | 58 | $179 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 32 | 21 | $82 | |
99291 |
Critical care, first 30-74 minutes | 13 | 13 | $218 |
In context: peer comparison
Among 5 peers in La Jolla Infectious Disease Physician, average services per provider: 81. This provider delivers 4.9× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Wun-Ling Chang's medical specialty?
Dr. Wun-Ling Chang practices Infectious Disease Physician in La Jolla, CA.
Where does Dr. Wun-Ling Chang practice?
Dr. Wun-Ling Chang practices at 9888 Genesee Ave, La Jolla, CA 920371205. Office phone: 8582021736.
What is Dr. Wun-Ling Chang's NPI?
Dr. Wun-Ling Chang's National Provider Identifier (NPI) is 1194734111, issued by NPPES.
Does Dr. Wun-Ling Chang accept Medicare assignment?
Yes. Dr. Wun-Ling Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Wun-Ling Chang commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.