Todd Chang, M.D.
Todd Chang, M.D. is a Pediatric Emergency Medicine (Pediatrics) Physician in Los Angeles, CA, registered under NPI 1790991719.
Getting there
The practice address on file is 4650 W SUNSET BLVD MSC #113, Los Angeles, CA 90027. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| A94533 | CA | Pediatric Emergency Medicine (Pediatrics)… primary |
This provider holds licence A94533 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Emergency Medicine
- PAC ID
- 4981888260
Enrolled in Medicare 2 times, across 1 state:
| State | Enrollment ID | Provider type |
|---|---|---|
| California | I20120424000152 | Practitioner - Emergency Medicine |
| California | I20230412001481 | Practitioner - Pediatric Medicine |
Medicare enrolment is recorded as approved under the provider type Practitioner - Emergency Medicine. There are 2 separate enrolment records. Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Pediatric Emergency Medicine covers
A pediatrician who has special qualifications to manage emergencies in infants and children. NUCC Health Care Provider Taxonomy, code 2080P0204X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1790991719 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 15, 2007 |
| Last updated | Feb 16, 2010 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
4650 W SUNSET BLVD MSC #113 Los Angeles, CA 90027 (323) 669-2109 |
| Mailing address |
4650 SUNSET BLVD. #113 CHILDRENS HOSPITAL LOS ANGELES Los Angeles, CA 90027 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 7 | 9 | 0 | 9 | 9 | 1 | 7 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 9 | 0 | 9 | 9 | 2 | 7 | 2 |
Sum = 71 · next multiple of 10 = 80 · check digit = 9 · actual last digit = 9
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.