Quest Diagnostics at 420 E 3rd St, Ste 802, Los Angeles, CA
Quest Diagnostics patient service center, 1 mile from downtown Los Angeles. Open Mon–Tue 8:30AM – 12:30PM & 1:30PM – 4:30PM · Wed 8:30AM – 12:30PM · Thu–Fri 8:30AM – 12:30PM & 1:30PM – 4:30PM · Sat–Sun closed. Order your tests on TestWell, choose Quest at checkout, and walk in with the emailed requisition and a photo ID — no doctor's visit, referral or insurance; results post to your portal in 1–3 business days. Address, phone and hours were read from the lab's listing on October 10, 2026.
- Address
- 420 E 3rd St, Ste 802, Los Angeles, CA 90013
- Phone
- 213-200-2868
- Appointment
- Walk-ins at most sites · book on Quest's site to skip the wait
Hours at Quest Diagnostics, 420 E 3rd St
As listed by the lab on October 10, 2026; confirm before a holiday or Saturday visit.
| Monday | 8:30AM – 12:30PM & 1:30PM – 4:30PM |
|---|---|
| Tuesday | 8:30AM – 12:30PM & 1:30PM – 4:30PM |
| Wednesday | 8:30AM – 12:30PM |
| Thursday | 8:30AM – 12:30PM & 1:30PM – 4:30PM |
| Friday | 8:30AM – 12:30PM & 1:30PM – 4:30PM |
| Saturday | Closed |
| Sunday | Closed |
How to get a blood test at this Quest Diagnostics location
- Choose your tests and check out, picking Quest as your lab. A licensed physician authorizes the order, usually within minutes, and the requisition is emailed to you — one $6 lab processing fee per order, nothing to pay here.
- Come to 420 E 3rd St, Ste 802 during the hours above with the requisition (on your phone is fine) and a photo ID. Fasting tests are easiest first thing in the morning.
- Results post to your TestWell portal in 1–3 business days with reference ranges and a physician review; download the report to share with your own doctor.
Popular tests drawn at Quest Diagnostics in Los Angeles — prices at Quest
The tests California customers order most, September 2025 – September 2026, priced for a Quest draw. Plus one $6 fee per order.
| Test | Price at Quest | Share of orders |
|---|---|---|
| IGF-1 (Insulin-like Growth Factor) | $37.99 | 8.3% |
| Tuberculosis (TB) Blood Test | $91.99 | 7.5% |
| Comprehensive Metabolic Panel | $22.99 | 6.7% |
| Lipid Panel | $24.99 | 5% |
| Essential Health Panel | $189.99 | 4.2% |
| Hemoglobin A1c | $21.99 | 4.2% |
Other locations near 420 E 3rd St, Ste 802
- Quest Diagnostics1.3 mi
1127 Wilshire Blvd, Suite 203-204, Los Angeles, CA 90017
Weekdays 8:00AM – 5:00PM
- Quest Diagnostics1.4 mi
1632 E. Cesar Chavez Ave, Los Angeles, CA 90033
Weekdays 6:00AM – 3:00PM
- Labcorp1.5 mi
1825 CESAR CHAVEZ AVENUE, Los Angeles, CA 90033
Weekdays 6:30AM – 2:00PM · Sat 7:00AM – 12:00PM
- Quest Diagnostics1.5 mi
1414 S Grand Ave, Ste 180, Los Angeles, CA 90015
Weekdays 7:00AM – 5:00PM · Sat 7:00AM – 12:00PM
- Labcorp2 mi
2007 Wilshire Blvd, Ste 400, Los Angeles, CA 90057
Weekdays 8:00AM – 12:30PM & 1:00PM – 4:30PM
- Labcorp5.6 mi
1510 S Central Ave, Ste 130, Glendale, CA 91204
Weekdays 7:00AM – 3:00PM
Frequently asked questions
- What are the hours at Quest Diagnostics 420 E 3rd St in Los Angeles?
- Mon–Tue 8:30AM – 12:30PM & 1:30PM – 4:30PM · Wed 8:30AM – 12:30PM · Thu–Fri 8:30AM – 12:30PM & 1:30PM – 4:30PM · Sat–Sun closed (as listed by the lab on 2026-10-10). Hours change around holidays — confirm before a Saturday or early-morning visit at 213-200-2868.
- Is Quest Diagnostics 420 E 3rd St open on Saturday?
- No — this location is closed on Saturday as of 2026-10-10. Labcorp at 1825 CESAR CHAVEZ AVENUE (1.5 mi) has Saturday hours.
- Do I need an appointment at Quest Diagnostics 420 E 3rd St?
- Most Quest Diagnostics patient service centers take walk-ins, and Quest Diagnostics lets you book a time slot on its site, which shortens the wait at busy locations. Bring a photo ID and your requisition — through TestWell it arrives by email within minutes of the physician's authorization, and it is accepted here as written.
- Can I get blood work at this Quest Diagnostics location without a doctor?
- Yes, with a requisition: Quest Diagnostics draws what a requisition orders but does not write orders. Order on TestWell — a licensed physician in our network authorizes it as part of the price, with one $6 lab processing fee per order — choose Quest at checkout, and walk in here. No insurance, referral or office visit; HSA and FSA cards are accepted.
- How much does a blood test cost at Quest Diagnostics in Los Angeles?
- Through TestWell the price is the test's listed price plus one $6 fee per order, with nothing to pay at the draw. For example, IGF-1 (Insulin-like Growth Factor) is $37.99, Tuberculosis (TB) Blood Test is $91.99, Comprehensive Metabolic Panel is $22.99 drawn at Quest Diagnostics. Ordered through a doctor and billed to insurance, your share depends on your plan.
- What is the phone number for Quest Diagnostics 420 E 3rd St, Los Angeles?
- 213-200-2868. Phone and hours were read from the lab's listing on 2026-10-10.