---
title: Labcorp at 591 REDWOOD HWY FRONTAGE RD, SUITE 2100, MILL VALLEY, CA
canonical: /lab-locations/california/san-francisco/labcorp-591-redwood-hwy-frontage-rd
type: lab-location
lab: Labcorp
address: 591 REDWOOD HWY FRONTAGE RD, SUITE 2100, MILL VALLEY, CA 94941
phone: 415-520-4844
hours: "Mon–Fri 7:00AM – 3:30PM"
latitude: 37.89197
longitude: -122.52037
listing_checked: 2026-11-13
takes_testwell_orders: true
lab_fee_usd: 6
---

# Labcorp at 591 REDWOOD HWY FRONTAGE RD, SUITE 2100, MILL VALLEY, CA

Labcorp patient service center, 9 miles from downtown San Francisco. Open Mon–Fri 7:00AM – 3:30PM. 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:** 591 REDWOOD HWY FRONTAGE RD, SUITE 2100, MILL VALLEY, CA 94941 ([directions](https://www.google.com/maps/dir/?api=1&destination=Labcorp%2C%20591%20REDWOOD%20HWY%20FRONTAGE%20RD%2C%20SUITE%202100%2C%20MILL%20VALLEY%2C%20CA%2094941))
- **Phone:** 415-520-4844
- **Appointments:** walk-ins at most sites; book on Labcorp's site to skip the wait

## Hours

| Day | Hours |
| --- | --- |
| Monday | 7:00AM – 3:30PM |
| Tuesday | 7:00AM – 3:30PM |
| Wednesday | 7:00AM – 3:30PM |
| Thursday | 7:00AM – 3:30PM |
| Friday | 7:00AM – 3:30PM |

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: [Thyroid Panel with TSH at Labcorp](https://www.test-well.com/tests/thyroid-panel-with-tsh/labcorp) ($46.99) · [Thyroid Antibodies Test at Labcorp](https://www.test-well.com/tests/thyroid-antibodies/labcorp) ($51.99) · [Thyroid Peroxidase (TPO) Antibodies Test at Labcorp](https://www.test-well.com/tests/tpo-antibodies/labcorp) ($26.99) · [Free T3 Test (Triiodothyronine) at Labcorp](https://www.test-well.com/tests/free-t3/labcorp) ($30.99) · [Reverse T3 Test at Labcorp](https://www.test-well.com/tests/reverse-t3/labcorp) ($35.99) · [Testosterone Test (Total) at Labcorp](https://www.test-well.com/tests/testosterone-total/labcorp) ($43.99) · [Free & Total Testosterone Test at Labcorp](https://www.test-well.com/tests/testosterone-free-and-total/labcorp) ($74.99) · [Free & Total Testosterone + SHBG Test at Labcorp](https://www.test-well.com/tests/testosterone-free-total-shbg/labcorp) ($94.99)

## Other locations near 591 REDWOOD HWY FRONTAGE RD, SUITE 2100

- [Quest Diagnostics, 447 Miller Ave](https://www.test-well.com/lab-locations/california/san-francisco/quest-447-miller-ave) — 0.8 mi
- [Quest Diagnostics, 1000 S Eliseo Dr, Ste 100](https://www.test-well.com/lab-locations/california/san-francisco/quest-1000-s-eliseo-dr) — 3.6 mi
- [Labcorp, 2100 Webster St, Ste 309](https://www.test-well.com/lab-locations/california/san-francisco/labcorp-2100-webster-st) — 8.5 mi
- [Labcorp, 2233 Post St, Ste 105](https://www.test-well.com/lab-locations/california/san-francisco/labcorp-2233-post-st) — 8.7 mi
- [Quest Diagnostics, 2201 Post St](https://www.test-well.com/lab-locations/california/san-francisco/quest-2201-post-st) — 8.7 mi
- [Labcorp, 728 Pacific Ave, Ste 401](https://www.test-well.com/lab-locations/california/san-francisco/labcorp-728-pacific-ave) — 9 mi

## Frequently asked questions

### What are the hours at Labcorp 591 REDWOOD HWY FRONTAGE RD in MILL VALLEY?

Mon–Fri 7:00AM – 3:30PM (as listed by the lab on 2026-11-13). Hours change around holidays — confirm before a Saturday or early-morning visit at 415-520-4844.

### Do I need an appointment at Labcorp 591 REDWOOD HWY FRONTAGE RD?

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 MILL VALLEY?

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 591 REDWOOD HWY FRONTAGE RD, MILL VALLEY?

415-520-4844. Phone and hours were read from the lab's listing on 2026-11-13.

- [All lab locations in San Francisco](https://www.test-well.com/lab-locations/california/san-francisco)
- [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.