David Hwang, DO
David Hwang, DO is a Nephrology Physician in Los Angeles, CA, registered under NPI 1003475039. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Los Angeles, based on OpenStreetMap data collected Sep 21, 2026. Parking is available about 0.24 mi away at CHLA - Sunset Parking Structure. The nearest transit stop is 793 ft away, served by Vermont & Barnsdall. A pharmacy sits 0.21 mi from the entrance (Rite Aid), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.26 mi away.
Getting here and what is nearby
Transit Sunset & Edgemont 443 ft ~2 min
Transit Sunset & Edgemont 633 ft ~3 min
Parking 1515 Vermont Parking 642 ft ~3 min
1515 Vermont Avenue, Los Angeles 90027
Parking Kaiser Permanente Patient/Visitor Parking 755 ft ~3 min
1549 Edgemont Street, Los Angeles 90027
Transit Vermont & Barnsdall 793 ft ~4 min
Grocery Jon's Marketplace 800 ft ~4 min
Coffee DRNK 862 ft ~4 min
Mo-Fr 06:00-22:00; Sa,Su 06:30-21:30
Restaurant Burger King 838 ft ~4 min
4918 West Sunset Boulevard, Los Angeles 90027-5814
Mo-Fr 06:00-20:00; Sa-Su 07:00-20:00
Restaurant Quiznos 856 ft ~4 min
Mo-Fr 09:30-20:00; Sa 11:00-17:00; Su 11:00-16:00
Coffee Fun Ol' Cakes 977 ft ~4 min
4963 West Sunset Boulevard, Los Angeles 90027
Tu-Fr 19:00-24:00; Su 13:00-20:00
Pharmacy Rite Aid 0.21 mi ~5 min
Restaurant Saffy's 0.21 mi ~5 min
Gas station Shell 0.23 mi ~5 min
Parking CHLA - Sunset Parking Structure 0.24 mi ~5 min
4601 Sunset Boulevard, Los Angeles 90029
Coffee Go Get 'Em Tiger 0.26 mi ~6 min
4630 Hollywood Boulevard, Los Angeles 90027
Mo-Su 06:00-18:00
Hotel Hotel Covell 0.26 mi ~6 min
Convenience 7-Eleven 0.33 mi ~7 min
5076 West Sunset Boulevard, Los Angeles 90027-5840
Grocery Grocery Outlet 0.33 mi ~7 min
Grocery Vons 0.38 mi ~8 min
Hotel Chateau Celeste Hollywood Hotel 0.41 mi ~9 min
Vermont Avenue, Los Angeles 90029
Convenience La Providencia Market 0.43 mi ~9 min
4532 Fountain Avenue, Los Angeles 90029
Hotel Hollywood Hotel 0.43 mi ~9 min
1160 North Vermont Avenue, Los Angeles 90029
Convenience 7-Eleven 0.49 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 |
|---|---|---|
| 20A19885 | CA | Nephrology Physician primary |
| 5151013415 | MI | Internal Medicine Physician |
Licences are recorded in 2 states: CA, MI. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Family Practice
- PAC ID
- 8224362595
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| California | I20231101002268 | Practitioner - Family Practice |
| Hawaii | I20250409000283 | Practitioner - Nephrology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Family Practice. There are 2 separate enrolment records across 2 states (CA, HI). 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.
Licensed in 2 states
This provider holds licences in 2 states: California and Michigan. 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
- 20A19885
- Specialty
- Nephrology 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 Nephrology covers
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation. NUCC Health Care Provider Taxonomy, code 207RN0300X
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 | |
|---|---|---|---|---|
| 207RN0300X | Nephrology Physician Nephrology | 20A19885 | CA | primary |
| 207R00000X | Internal Medicine Physician | 5151013415 | MI |
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 | 1003475039 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 12, 2019 |
| Last updated | Sep 10, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | DO |
| Practice address |
4867 W SUNSET BLVD Los Angeles, CA 90027 (833) 574-2273 |
| Mailing address |
4733 W SUNSET BLVD FL 3 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 | 0 | 0 | 3 | 4 | 7 | 5 | 0 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 7 | 1 | 0 | 6 |
Sum = 51 · next multiple of 10 = 60 · 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.