Caroline Hwang, M.D.
Caroline Hwang, M.D. is a Gastroenterology Physician in Los Angeles, CA, registered under NPI 1003090085. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Los Angeles, based on OpenStreetMap data collected Sep 4, 2026. Parking is available about 805 ft away. There is EV charging 172 ft from the office — useful if you are driving in from out of town. The nearest transit stop is 484 ft away, served by LA-USC T4. If you arrive early, there is a coffee shop 0.48 mi away.
Getting here and what is nearby
EV charging 172 ft ~1 min
Transit LA-USC T3 243 ft ~1 min
Transit LA-USC T15 324 ft ~2 min
Transit LA-USC T4 484 ft ~2 min
Parking 480 ft ~2 min
Restaurant Dunkin' 455 ft ~2 min
2200 East Trojan Way, Los Angeles 90033
Mo-Th 05:00-18:00; Fr 05:00-19:00; Sa 06:00-18:00; Su 06:00-16:00
Parking 568 ft ~3 min
Restaurant Chipotle 607 ft ~3 min
Hotel Hyatt House LA - University Medical Center 658 ft ~3 min
Parking 805 ft ~4 min
Restaurant Panda Express 0.21 mi ~5 min
1969 Zonal Avenue, Los Angeles 90006
Mo-Fr 10:00-15:00
Gas station Chevron 0.40 mi ~9 min
Convenience 7-Eleven 0.46 mi ~10 min
Coffee Starbucks 0.48 mi ~10 min
Hotel Lincoln Park Motel 0.49 mi ~10 min
Hotel Lincoln Park Motel 0.50 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 245362 | NY | Internal Medicine Physician |
| A108110 | CA | Gastroenterology Physician primary |
Licences are recorded in 2 states: NY, CA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Gastroenterology
- PAC ID
- 0941374375
- Enrollment ID
- I20121121000477
Medicare enrolment is recorded as approved under the provider type Practitioner - Gastroenterology. 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.
Licensed in 2 states
This provider holds licences in 2 states: California and New York. The practice address on file is in Los Angeles, CA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- A108110
- Specialty
- Gastroenterology Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Gastroenterology covers
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs. NUCC Health Care Provider Taxonomy, code 207RG0100X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | 245362 | NY | |
| 207RG0100X | Gastroenterology Physician Gastroenterology | A108110 | CA | primary |
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 | 1003090085 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 26, 2007 |
| Last updated | Mar 10, 2016 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | M.D. |
| Practice address |
1520 SAN PABLO ST SUITE 1000 Los Angeles, CA 90033 (323) 442-5100 |
| Mailing address |
PO BOX 31309 Los Angeles, CA 90031 |
| Other identifiers |
1902846306
· Other (CA) GR0100430 · Other (CA) W18762 · Other (CA) |
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 | 0 | 0 | 3 | 0 | 9 | 0 | 0 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 9 | 0 | 0 | 7 |
Sum = 45 · next multiple of 10 = 50 · check digit = 5 · actual last digit = 5
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.