---
title: Labcorp at 433 N 4th St, Ste 201, Montebello, CA
canonical: /lab-locations/california/los-angeles/labcorp-433-n-4th-st
type: lab-location
lab: Labcorp
address: 433 N 4th St, Ste 201, Montebello, CA 90640
phone: 323-890-1842
hours: "Mon–Fri 7:00AM – 2:30PM"
latitude: 34.01556
longitude: -118.10212
listing_checked: 2026-11-13
takes_testwell_orders: true
lab_fee_usd: 6
---

# Labcorp at 433 N 4th St, Ste 201, Montebello, CA

Labcorp patient service center, 8 miles from downtown Los Angeles. Open Mon–Fri 7:00AM – 2:30PM. Order your tests on TestWell, choose Labcorp 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 2026-11-13.

- **Address:** 433 N 4th St, Ste 201, Montebello, CA 90640 ([directions](https://www.google.com/maps/dir/?api=1&destination=Labcorp%2C%20433%20N%204th%20St%2C%20Ste%20201%2C%20Montebello%2C%20CA%2090640))
- **Phone:** 323-890-1842
- **Appointments:** walk-ins at most sites; book on Labcorp's site to skip the wait

## Hours

| Day | Hours |
| --- | --- |
| Monday | 7:00AM – 2:30PM |
| Tuesday | 7:00AM – 2:30PM |
| Wednesday | 7:00AM – 2:30PM |
| Thursday | 7:00AM – 2:30PM |
| Friday | 7:00AM – 2:30PM |

Confirm before a holiday or Saturday visit.

## Popular tests drawn here — prices at Labcorp

The tests California customers order most, September 2025 – September 2026, priced for a Labcorp draw. Plus one $6 fee per order; nothing to pay at the location.

| Test | Price at Labcorp |
| --- | --- |
| [IGF-1 (Insulin-like Growth Factor) at Labcorp](https://www.test-well.com/tests/igf-1-test/labcorp) | $37.99 |
| [Tuberculosis (TB) Blood Test at Labcorp](https://www.test-well.com/tests/tuberculosis-blood-test/labcorp) | $91.99 |
| [Comprehensive Metabolic Panel at Labcorp](https://www.test-well.com/tests/comprehensive-metabolic-panel/labcorp) | $22.99 |
| [Lipid Panel at Labcorp](https://www.test-well.com/tests/lipid-panel/labcorp) | $24.99 |
| [Essential Health Panel](https://www.test-well.com/tests/essential-health-panel) | $189.99 |
| [Hemoglobin A1c at Labcorp](https://www.test-well.com/tests/hemoglobin-a1c/labcorp) | $22.99 |

More tests at Labcorp: [Free Testosterone Test (Direct) at Labcorp](https://www.test-well.com/tests/testosterone-free/labcorp) ($36.99) · [Total Estrogens Test at Labcorp](https://www.test-well.com/tests/estrogens-total/labcorp) ($39.99) · [Progesterone Test at Labcorp](https://www.test-well.com/tests/progesterone/labcorp) ($31.99) · [DHEA-Sulfate Test at Labcorp](https://www.test-well.com/tests/dhea-sulfate/labcorp) ($39.99) · [Cortisol Test (AM) at Labcorp](https://www.test-well.com/tests/cortisol-am/labcorp) ($27.99) · [Antidiuretic Hormone (ADH) Profile at Labcorp](https://www.test-well.com/tests/antidiuretic-hormone-profile/labcorp) ($109.99) · [FSH Test (Follicle Stimulating Hormone) at Labcorp](https://www.test-well.com/tests/fsh/labcorp) ($29.99)

## Other locations near 433 N 4th St, Ste 201

- [Quest Diagnostics, 2527 Via Campo](https://www.test-well.com/lab-locations/california/los-angeles/quest-2527-via-campo) — 1.6 mi
- [Labcorp, 1411 S Garfield Ave, Suite 205-207](https://www.test-well.com/lab-locations/california/los-angeles/labcorp-1411-s-garfield-ave) — 4.5 mi
- [Quest Diagnostics, 1411 S Garfield Ave, Ste 100](https://www.test-well.com/lab-locations/california/los-angeles/quest-1411-s-garfield-ave) — 4.5 mi
- [Labcorp, 1127 S FREMONT AVE, Suite C](https://www.test-well.com/lab-locations/california/los-angeles/labcorp-1127-s-fremont-ave) — 5.3 mi
- [Labcorp, 1825 CESAR CHAVEZ AVENUE](https://www.test-well.com/lab-locations/california/los-angeles/labcorp-1825-cesar-chavez-avenue) — 6.9 mi
- [Quest Diagnostics, 1632 E. Cesar Chavez Ave](https://www.test-well.com/lab-locations/california/los-angeles/quest-1632-e-cesar-chavez-ave) — 7.1 mi

## Frequently asked questions

### What are the hours at Labcorp 433 N 4th St in Montebello?

Mon–Fri 7:00AM – 2:30PM (as listed by the lab on 2026-11-13). Hours change around holidays — confirm before a Saturday or early-morning visit at 323-890-1842.

### Do I need an appointment at Labcorp 433 N 4th St?

Most Labcorp patient service centers take walk-ins, and Labcorp 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 Labcorp location without a doctor?

Yes, with a requisition: Labcorp 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 Labcorp 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 Labcorp in Montebello?

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 Labcorp. Ordered through a doctor and billed to insurance, your share depends on your plan.

### What is the phone number for Labcorp 433 N 4th St, Montebello?

323-890-1842. Phone and hours were read from the lab's listing on 2026-11-13.

- [All lab locations in Los Angeles](https://www.test-well.com/lab-locations/california/los-angeles)
- [Lab testing in California](https://www.test-well.com/lab-locations/california)

---

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Prices are cash-pay, in USD, and include physician authorization; every order adds one flat $6 lab processing fee. Educational content is not a diagnosis — discuss results with a clinician.