John Lam, MD
John Lam, MD is an Infectious Disease Physician in Los Angeles, CA, registered under NPI 1003555772.
Getting there
Here is what surrounds this office in Los Angeles, based on OpenStreetMap data collected Oct 6, 2026. Parking is available about 0.23 mi away. The nearest transit stop is 426 ft away, served by Gayley & Landfair. A pharmacy sits 0.39 mi from the entrance (Bruin Health Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 1,021 ft away.
Getting here and what is nearby
Parking Parking 1 212 ft ~1 min
Mo-Su 00:00-00:00
Pharmacy Campus Pharmacy 260 ft ~1 min
Restaurant Dining Commons 314 ft ~2 min
Transit Gayley & Landfair 344 ft ~2 min
Transit UCLA Medical Center;Medical Plaza 355 ft ~2 min
Restaurant Subway 384 ft ~2 min
Transit Gayley & Landfair 426 ft ~2 min
Restaurant Chick-fil-A 757 ft ~3 min
900 Westwood Boulevard, Los Angeles 90024
Mo-Sa 06:30-22:30
Convenience ExtraMile 876 ft ~4 min
Gas station Chevron 890 ft ~4 min
Coffee Starbucks 1,010 ft ~4 min
Coffee Starbucks 1,020 ft ~4 min
Coffee Starbucks 1,021 ft ~4 min
Mo-Fr 07:00-15:30;Sa-Su closed
Pharmacy CVS Pharmacy 0.20 mi ~4 min
Grocery Ralphs 0.20 mi ~4 min
Parking Parking 8 0.21 mi ~5 min
Parking 0.23 mi ~5 min
1031 Broxton Avenue, 90024
Grocery Trader Joe's 0.26 mi ~6 min
1000 Glendon Avenue, Los Angeles 90024
Mo-Su 08:00-22:00
Hotel The Tiverton 0.28 mi ~6 min
Grocery Whole Foods Market 0.28 mi ~6 min
1050 Gayley Avenue, Los Angeles 90024
Mo-Su 07:00-22:00
Convenience Court of Sciences Store 0.33 mi ~7 min
Hotel W Los Angeles - West Beverly Hills 0.35 mi ~8 min
930 Hilgard Avenue, Los Angeles 90024
Hotel Claremont Hotel 0.37 mi ~8 min
Convenience UCLA Store Market 0.39 mi ~8 min
Pharmacy Bruin Health Pharmacy 0.39 mi ~8 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 |
|---|---|---|
| A179063 | CA | Infectious Disease Physician primary |
This provider holds licence A179063 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Infectious Disease covers
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine. NUCC Health Care Provider Taxonomy, code 207RI0200X
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 | 1003555772 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 1, 2022 |
| Last updated | Jul 26, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
200 MEDICAL PLAZA SUITE 365-C Los Angeles, CA 90095 (310) 206-7663 Fax (310) 794-9718 |
| Mailing address |
5767 W CENTURY BLVD STE 400 Los Angeles, CA 90045 |
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 | 5 | 5 | 5 | 7 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 5 | 1 | 7 | 5 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
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.