Quick answer: Function Health does not operate its own brick-and-mortar draw centers. Instead, your blood draw happens at a Quest Diagnostics or Labcorp patient service center near you, using your Function-issued requisition. Both networks combined cover more than 3,000 draw sites across all 50 states, so most members drive fewer than 10 miles for their appointment. For add-on imaging such as MRI body scans, Function partners with separate imaging providers on a city-by-city basis, not the same lab network.
How Function Health lab locations actually work
Function Health is a membership-based platform, not a laboratory. When you join, the platform generates a digital lab requisition tied to your account. You take that requisition to any Quest Diagnostics or Labcorp draw site in your state, the phlebotomist collects your tubes, and the sample ships to the actual reference lab for analysis. Function never touches a specimen; it aggregates the results and presents them inside its dashboard.
This model means the quality of the draw itself is identical to what you would get ordering tests through your doctor, because the exact same draw sites and reference labs are involved. The only difference is the ordering physician is the one contracted with Function rather than your primary care provider. See our function health review for a full breakdown of how the membership works end to end.
One implication people miss: you are not limited to a “Function” location. Any Quest or Labcorp site that accepts walk-ins or appointments is a valid draw site for your Function requisition. If you move cities, change jobs, or are traveling, you can walk into a different site without contacting Function support.
Which lab networks does Function Health use?
Function routes tests through both Quest Diagnostics and Labcorp, the two largest reference laboratory networks in the United States. Depending on which biomarkers are on your panel, your requisition may route to one or the other, or you may split across both draws on the same day.
| Lab network | Approximate US patient service centers | Appointment scheduling |
|---|---|---|
| Quest Diagnostics | ~2,250 locations | questdiagnostics.com or app |
| Labcorp | ~1,800 locations | labcorp.com or app |
Both networks also maintain smaller in-hospital draw stations and employer wellness sites that may or may not appear in the public locators, so the true draw site count is higher. In dense metro areas you will typically find a site within 2 to 3 miles. Rural members occasionally drive 20 to 40 miles, but that is the exception rather than the rule.
How to find the nearest Function health test location
The fastest way is to use the Function Health member dashboard after you activate your membership. The platform shows you a map of nearby draw sites based on your address, pre-filtered to sites that accept Function requisitions.
If you want to scout before joining or check a specific city, use the public locators directly:
- Go to questdiagnostics.com/find-a-location or the Quest app. Enter your zip code and filter for "Patient Service Center." Avoid filtering for "In-Office Phlebotomy" since those require a physician order from that specific practice.
- Go to labcorp.com/labs-and-appointments and do the same. Look for "Patient Service Center" label, not "Employer" or "Hospital Outreach."
- Cross-reference your Function requisition: the requisition document lists the receiving lab (Quest or Labcorp), so you know which network to search.
Some members also book draws at CVS MinuteClinic locations that partner with Quest. That option works fine as long as the site confirms it accepts outside requisitions, which most do.
Can you schedule your draw at any Quest or Labcorp site?
Practically yes, with two caveats. First, a small number of draw sites are employer-only or hospital-outpatient-only and require a system order from a physician at that specific institution. These sites will tell you at the door, and you simply go to the next nearest one. Second, Function test panels often require fasting (typically 8 to 12 hours), timed draws for certain hormones, or specific tube types. The phlebotomist at any Quest or Labcorp site is trained to handle this as long as your requisition clearly specifies it, which Function requisitions do.
Walk-in is possible at most Quest and Labcorp sites, but appointments are strongly preferred, especially during early morning hours when fasting draws pile up. Same-day appointments are usually available in most zip codes. If you are managing your draw schedule alongside a work calendar, booking 48 hours out is rarely a problem.
Function health MRI locations and imaging add-ons
This is where Function health testing locations diverge from the standard blood draw network. MRI body scanning and other imaging add-ons (DEXA body composition, coronary artery calcium scoring) are not available through Quest or Labcorp. Function partners with regional imaging centers on a market-by-market basis.
As of 2026, MRI body scan availability through Function is limited to select metro areas, including but not limited to New York, Los Angeles, Dallas, Miami, Chicago, and a handful of other large cities. The imaging partner list changes as Function expands. You can check current imaging availability inside the member portal after signing up; there is no public-facing map for imaging sites.
Key things to know about Function MRI locations:
- MRI body scans are a paid add-on, priced separately from your annual membership. See our breakdown of function health cost for the current add-on pricing ranges.
- Scheduling goes through Function’s dashboard, not directly through the imaging center’s own booking system.
- If you are not in a covered metro area, Function does not currently offer a workaround or reimbursement for out-of-network imaging. You would need to seek imaging independently.
- The MRI scans Function offers are whole-body or organ-targeted protocols, not standard diagnostic MRIs ordered for a specific complaint. Insurance does not cover them.
What if you live in a rural area or a state with fewer draw sites?
Quest and Labcorp have patient service centers in all 50 states, including Alaska and Hawaii. That said, members in truly rural zip codes (population under 5,000) may encounter a scenario where the nearest draw site is in the county seat 30 or more miles away. In that situation, two options exist.
First, Function Health supports at-home phlebotomy in select markets through third-party mobile draw services. This option costs extra (prices have ranged from $50 to $150 depending on the vendor and region) and availability is patchier than the fixed draw sites. Check the member dashboard for your zip code to see if this is offered.
Second, some urgent care chains and independent draw centers accept outside requisitions. Call ahead and confirm before making the trip. Chains like LabFinder-affiliated sites and some hospital outreach labs will accept Function requisitions.
If the logistics feel complicated before you even sign up, it is worth comparing against alternatives with simpler geographic coverage. The superpower blood test review walks through how that service handles draws, which also runs through Quest and Labcorp but at a lower annual price point.
The simplest way to actually get this done
Superpower is a full-body lab membership that runs 100+ biomarkers, has each result reviewed by a doctor, and tracks your numbers year over year (about $199/year). It is what we point readers to when they would rather get one clean, complete draw than chase single tests one at a time. Here is superpower reviewed in full.
Does Function Health work in all 50 states?
For blood draws, yes, with the caveat that New York state has specific regulations around self-ordered laboratory testing. Residents of New York can order certain tests through Function but not others, due to state law requiring physician involvement for some panels. Function navigates this through its contracted physicians and flags NY-specific restrictions in the ordering flow. If you are a New York resident, expect your panel to look slightly different from the national default.
All other states are fully operational. Draw sites exist in every state, and there are no additional state-level restrictions that block Function from processing a requisition in a standard state like Texas, Florida, or Ohio.
How to book your blood draw appointment step by step
- Activate your membership and complete the health intake questionnaire inside the Function app. This triggers the generation of your requisition.
- Open your requisition inside the dashboard. Note which lab network is listed (Quest or Labcorp) and whether any fasting instructions apply.
- Go to the lab network site (questdiagnostics.com or labcorp.com) and search for locations near your address. Pick a site, choose a date, and book your appointment online or via the app.
- Prepare for the draw. Most Function panels require fasting from midnight before the draw. Drink water freely; hydration makes veins easier to access and reduces hemolysis (a lab error caused by ruptured red cells that can invalidate certain results).
- Bring your requisition. The Function app makes this a QR code or printable PDF. The phlebotomist scans or enters it. You do not need to bring insurance cards since Function’s requisitions are direct-pay orders.
- Wait for results. Most biomarkers return within 3 to 7 business days. A small number of specialty tests (some hormone panels, certain autoimmune markers) take 10 to 14 days.
For more on what the app experience looks like after results arrive, the function health app review covers the interface in detail.
What people get wrong about Function Health draw locations
The most common misconception is that Function has its own branded clinics somewhere. It does not. If you have ever seen a "Function Health location" mentioned online, the person almost always means the Quest or Labcorp site where they happened to get drawn. There is no Function-branded space.
A second error: some members assume any Quest or Labcorp draw is automatically covered by the membership fee. The membership covers the test cost, not any separate draw fee that the collection site might charge. Most Quest and Labcorp patient service centers do not charge a separate phlebotomy fee for external requisitions, but a small minority do (typically $10 to $30). It is worth confirming when you book. Function’s support team can clarify whether a specific site charges a separate collection fee. If questions arise about support channels, the function health customer service contact guide has current options.
Third: the mobile phlebotomy add-on is not free. Members sometimes assume home draw is a standard feature. It is not; it is an upsell that not every zip code supports.
Comparing draw logistics across competing services
| Service | Draw network | Home draw option | Imaging add-ons |
|---|---|---|---|
| Function Health | Quest + Labcorp | Select markets, paid add-on | Select metros, paid add-on |
| Superpower | Quest + Labcorp | Select markets, paid add-on | Not offered |
| LifeForce | Quest + Labcorp | Some markets | Not offered |
| Marek Health | Quest + Labcorp | Limited | Not offered |
| SiPhox Health | At-home finger-prick kit | Standard (mail-in) | Not offered |
The table above shows that draw logistics are similar across the premium lab membership category. No service has a meaningfully larger draw site footprint than Quest or Labcorp, because both those networks are already as dense as they get in the US. Differentiation happens at the panel depth, physician review quality, and pricing level, not the geographic reach of the draw network. For a price-focused comparison, read more about how much does superpower cost versus Function’s annual fee.
FAQ
Where are Function Health labs located?
Function Health does not operate its own labs. Draws happen at Quest Diagnostics and Labcorp patient service centers, which are spread across all 50 states. You find the nearest one through the Function member portal or directly on the Quest or Labcorp websites.
Does Function Health have locations in every state?
Yes for blood draws. Quest and Labcorp combined have draw sites in all 50 states. New York residents face some panel restrictions due to state law, but they can still complete draws. MRI and imaging add-ons are only available in select cities and are expanding gradually.
Can I walk in to a Quest or Labcorp without an appointment for my Function draw?
Most sites accept walk-ins, but early morning slots fill quickly with fasting patients. Booking an appointment online 24 to 48 hours in advance is strongly recommended. Same-day appointments are available at most urban and suburban locations.
What are Function Health MRI locations?
MRI body scans through Function are available in select large US metros (New York, Los Angeles, Dallas, Miami, Chicago, and others). The list is not public-facing; you check availability inside the member dashboard after signing up. If your city is not covered, there is currently no remote or reimbursement option through Function.
Is there a Function Health location near me?
If you are in any US city or suburb, almost certainly yes for blood draws, since Quest and Labcorp together have over 4,000 draw points nationally. Rural areas occasionally require a 20 to 40-minute drive. Imaging availability is narrower and metro-specific.
Do I need to bring anything special to the draw site?
Bring your Function requisition (QR code or printed PDF), a valid photo ID, and arrive fasted if your panel requires it. You do not need insurance cards. Wear clothing that allows easy access to the antecubital fossa (inner elbow area) to speed up the draw.
Can I use a CVS MinuteClinic or urgent care for my Function draw?
Some CVS MinuteClinic locations partner with Quest and can process outside requisitions. Call the specific location first to confirm they accept external requisitions before making the trip. Not all MinuteClinic sites have phlebotomy services, so this varies by location.
What if the Quest or Labcorp near me charges a separate phlebotomy fee?
A minority of collection sites charge an additional draw fee, typically $10 to $30, on top of the test costs covered by your Function membership. Confirm with the site when you book. Function’s member support can also advise you on sites known to waive the collection fee in your area.
Can I get my Function blood draw done at a hospital lab?
Hospital outpatient labs that partner with Quest or Labcorp can technically accept Function requisitions, but many hospital labs only process orders from their affiliated physicians. Call the hospital lab directly and ask if they accept external patient service center requisitions. Freestanding Quest and Labcorp patient service centers are a more reliable option.
What happens if I move cities after joining Function Health?
Nothing changes with your membership. You update your address in the Function app, and the portal recalculates nearby draw sites based on the new location. Your requisition remains valid. The only wrinkle is if you move into New York state, where some panel components face regulatory restrictions.
