How Nursing Homes Choose a Laboratory Partner

Choosing a laboratory partner is one of the more consequential vendor decisions a skilled nursing facility makes, and one of the least discussed. The wrong lab creates billing write-offs, delays care decisions, and generates documentation gaps that surface at exactly the wrong moment — during a survey. The right one becomes close to invisible: results arrive when expected, claims process cleanly, and your nursing staff stops thinking about it.

This guide covers what actually matters when evaluating a lab partner for a skilled nursing facility, and the questions worth asking before you commit.

1. Does the lab understand SNF consolidated billing?

This is the single most important question, and the one most likely to be answered badly.

Under Medicare's SNF Prospective Payment System, most services provided to a resident in a covered Part A stay are bundled into the facility's per-diem payment. Laboratory services fall inside that bundle. This means when a resident is in a Part A stay, the lab does not bill Medicare directly — the facility is responsible for the cost, and the lab bills the facility.

When that same resident is in a Part B stay or is a long-term custodial resident not covered under Part A, laboratory services are billed directly to Medicare Part B by the lab.

The distinction sounds simple written down. In practice it is where the money gets lost.

Where facilities get burned

A lab that does not track Part A status will bill Medicare directly for a resident who is actually in a covered Part A stay. Medicare denies the claim. The lab then turns around and bills the facility — often months later, sometimes past the point where the facility can reconcile it against the correct billing period. Facilities routinely absorb these as write-offs.

The reverse happens too. A lab bills the facility for a resident who was actually Part B eligible, and the facility pays for something Medicare would have covered.

What to ask

• How do you track which residents are in a Part A covered stay versus Part B?
• What is your process when our census changes mid-month?
• Do you provide a monthly reconciliation report separating Part A bundled charges from Part B direct-billed services?
• What happens if you bill Medicare for a Part A resident by mistake — who absorbs that?
• How far back will you retroactively bill us for a misclassified charge?

A lab that handles SNF work regularly will answer these immediately and specifically. A lab that mostly does outpatient or physician-office work will give you vague answers, and that vagueness will cost you money later.

2. Can they actually handle STAT orders?

Every lab says they do STAT. The question is what happens operationally when you call one in at 4:00 PM on a Friday.

For a skilled nursing facility, STAT capability is not a convenience feature — it is a clinical safety issue. A resident with an acute change in condition, a suspected infection, or an anticoagulation concern needs results fast enough to make a treatment decision before the situation escalates to a hospital transfer. Avoidable hospitalizations affect your quality metrics, your relationships with referring hospitals, and most importantly your residents.

What to ask

• Which specific tests can you run in-house, and which go to a reference lab?
• What is your realistic turnaround for an in-house STAT draw?
• Do you have a dedicated phone line or contact for STAT orders, or do we go through the general line?
• What is your process for critical value notification, and who do you call?
• Do you have documented after-hours and weekend STAT coverage?

Pay attention to the in-house versus send-out answer specifically. A lab that sends the majority of its testing to a reference facility cannot give you meaningful STAT turnaround regardless of what the contract says — the sample has to physically travel, get processed, and come back. Ask for the actual menu of what runs in-house.

3. Will their draw schedule work with your operations?

A lab that shows up at 11:00 AM disrupts your entire morning. Medication passes, therapy sessions, meals, and fasting requirements all collide with an unpredictable phlebotomy schedule.

The practical reality is that most routine draws in a nursing facility need to happen early, before breakfast for fasting orders and before the day's activity schedule gets underway. A lab that cannot commit to a consistent early window is going to create friction with your nursing staff every single day.

What to ask

• What time will your phlebotomist arrive for our routine draws, and how consistent is that?
• Is it the same phlebotomist regularly, or does it rotate?
• What happens if your phlebotomist calls out — do you have backup coverage?
• Can you accommodate an add-on draw the same day if a physician orders one after your morning visit?
• How do you handle difficult draws, and what is your process when a resident cannot be accessed?

The consistency question matters more than facilities expect. A phlebotomist who works your building regularly learns which residents have difficult access, who gets anxious, and how your nursing staff prefers to coordinate. That familiarity reduces failed draws, redraws, and resident distress — none of which show up in a contract but all of which affect your operations daily.

4. How do results actually reach your team?

Result delivery is where a lot of facilities discover their lab partner is a poor fit — usually after the relationship has already started.

The core question is whether the lab integrates with your clinical system or whether your staff is going to be manually re-entering results. If your facility uses an electronic health record, a lab that faxes results to your nurses' station is creating hours of transcription work every week and introducing transcription errors into resident charts.

What to ask

• Can you deliver results directly into our EHR, and have you done that integration before?
• If not electronic, what is your delivery method and what is the typical delay?
• Who receives critical values, and what is your escalation process if that person is unavailable?
• Can the ordering physician receive a copy directly, or does that route through us?
• Is there a portal where our staff can look up historical results?

5. Will they hold up during a survey?

Your lab partner's documentation becomes your documentation. When a surveyor asks to see the order, the result, the timestamp, and the critical value notification for a specific resident, you need to be able to produce it — and a lab that keeps loose records becomes your problem, not theirs.

What to ask

• Are you CLIA certified, and can you provide a current copy of your certificate?
• What is your process for documenting critical value notification — time called, who was reached, what was communicated?
• How long do you retain records, and how quickly can you retrieve a specific historical result if we need it for a survey?
• Can you provide documentation of your proficiency testing performance?
• Do you have a business associate agreement in place, and will you sign ours?

Ask for the CLIA certificate before you sign anything. It takes thirty seconds and any legitimate laboratory will produce it without hesitation.

6. What happens when something goes wrong?

This is the question that separates vendors from partners, and it is almost never in the contract.

Something will go wrong. A specimen will be mishandled. A result will be delayed. An order will be lost. The question is not whether it happens but what happens next — whether you get a named person who takes ownership and calls you back, or whether you get a support queue and a case number.

What to ask

• Who specifically is our point of contact, and what is their direct number?
• What is your escalation path if that person is unavailable?
• How do you communicate when a specimen is compromised or a result is delayed?
• Can we speak with a current facility client as a reference?

That last one is worth doing. A lab that has served skilled nursing facilities well will be able to connect you with a DON who will vouch for them. A lab that hesitates is telling you something.

7. Local versus national: what actually changes

National laboratory chains offer scale, established EHR integrations, and standardized processes. Those are real advantages and worth weighing honestly.

What they generally do not offer is a specimen that stays in your region. When samples are transported out of the local market for processing, turnaround extends regardless of what the service agreement promises. For routine monthly labs that may be acceptable. For a resident with an acute change in condition at 3:00 PM, it often is not.

The other difference is accountability. A local lab has a physical address you can drive to and a manager who answers the phone. A national chain has a support line. Neither is inherently better — but for a facility where a delayed result can mean a hospital transfer, proximity has operational value that is easy to underrate until you need it.

Making the decision

Most facilities evaluate labs on price first. That is understandable and usually a mistake — the cost differences between labs are typically small relative to what a single billing misclassification or a pattern of delayed results costs over a year.

The better framework is to weigh, in order: whether they genuinely understand consolidated billing, whether their in-house testing menu supports real STAT capability, whether their draw schedule fits your operations, and whether you will have a named person who takes ownership when something breaks.

Get those four right and the rest is manageable. Get the first one wrong and you will be writing off charges for years.