The 36415 venipuncture billing provider is the clinic or group that owns the draw station and employs the phlebotomist. Put that group in Box 33, the outside ordering doctor in Box 17, and your supervising clinic practitioner in Box 24J.
The CLIA physician is not the default answer. Neither is the doctor who ordered the test. A draw for an outside order is still your clinic’s service, so your clinic bills it.
TL;DR: Your clinic bills 36415 under its group NPI in Box 33. The outside physician goes in Box 17 with qualifier DK. The clinic practitioner who supervised the draw goes in Box 24J. The outside lab bills the test itself. Medicare pays one collection fee per encounter, $9.34 in 2026.
Written by Manikandan J, CPC, CRCR, a certified coder and revenue cycle specialist. Published 14 November 2026. Last updated: 14 November 2026.
Table of Contents
Who is the billing provider for 36415 when an outside doctor orders the lab?
The billing provider is your clinic, not the outside doctor. The clinic owns the draw station. Its phlebotomist performs the venipuncture. So the clinic’s legal name, address and group NPI go in Box 33. The ordering doctor did not draw the blood, so that doctor cannot bill 36415.
CPT 36415 is the code for collection of venous blood by venipuncture. Medicare lists it in Chapter 16 of the Medicare Claims Processing Manual, section 60.1.2. Section 60.1 adds a key rule. The fee is not paid to anyone who has not extracted the specimen.
That rule settles most disputes. The entity whose staff drew the blood bills the draw. The reference lab that runs the test bills the test. Each party bills only its own work.
| CMS-1500 box | What goes there for a 36415 draw | Source |
|---|---|---|
| Box 17 (qualifier DK) | Outside physician who ordered the lab | CMS-1500 MLN course, item 17 |
| Box 24J | Clinic practitioner who supervised the draw that day | CMS-1500 MLN course, item 24J |
| Box 32 | Address of the draw station where blood was taken | NUCC 1500 instructions |
| Box 33 | Clinic or group name, address and group NPI | NUCC 1500 instructions |
Is Box 31 or Box 33 the billing provider on the CMS-1500?
The billing provider is the entity that gets paid for the claim. Box 33 is the billing provider on the CMS-1500. Box 31 is only the signature of the physician or supplier. Many billers mix these two up. Report the clinic’s group NPI in Box 33a. Report the rendering practitioner’s individual NPI in Box 24J.
The NUCC 1500 claim form manual defines each box. Box 32 is the service facility. Use it when blood is drawn at a site other than the billing address. If you need to confirm an NPI, use our NPI lookup tool.
Who goes in Box 24J: the doctor of the day or the CLIA director?
The rendering provider is the practitioner who performed or supervised the service. Box 24J should carry the clinic practitioner who supervised the phlebotomist that day. In many clinics that is the on-site doctor of the day. CMS training says to enter the supervisor’s NPI when the ordering person is not supervising. The outside doctor is not supervising your staff.
That instruction is in the CMS CMS-1500 billing course, item 24J. The person in 24J must be enrolled with the payer and linked to your group. A practitioner who never works at the draw site is a weak choice.
The CLIA director is not automatically the rendering provider. A CLIA certificate covers testing, not blood collection. Under 42 CFR 493.2, a site that only collects or prepares specimens is not a laboratory. So a draw-only station needs no CLIA number for 36415.
Commercial plans can set their own rendering rules. Some want the credentialed physician on site. Others accept the group NPI alone. Check each plan’s provider manual before you set a default.
Where does the outside ordering physician go on the claim?
The ordering provider is the practitioner who requested the test. The outside ordering physician goes in Box 17 with qualifier DK. Put the doctor’s NPI in Box 17b. Medicare requires ordering information on diagnostic lab claims. The CMS item 17 lesson lists diagnostic laboratory services among them.
The ordering doctor must also be enrolled in Medicare to order. A blank or wrong Box 17 often returns as a CO-16 denial for missing claim information. Medicare treats that claim as unprocessable, so fix the ordering data and send a new claim. Do not move the outside doctor into Box 24J to make the edit pass.
When I audit draw station claims, I see one pattern often. The clinic puts its own doctor in Box 17 and leaves the real orderer off the claim.
How much does Medicare pay for 36415 in 2026?
The specimen collection fee is the Medicare payment for drawing the sample. Medicare pays a specimen collection fee of $9.34 for all specimens collected in one encounter in 2026. The fee is $11.34 for a draw in a skilled nursing facility or for a home health agency. CMS updates the amount each year by CPI-U, per Chapter 16, section 60.1.
Section 60.1.2 says the Part B deductible and 20 percent coinsurance do not apply to collection fees. So do not bill the patient for a Medicare 36415 balance. Only one collection fee is allowed per specimen type per encounter. Bill 36415 once, even when you fill several tubes.
The test itself is a separate line on a separate claim. The reference lab that runs the test bills it under its own CLIA number. Our answer on toxicology bundling denials for G0483 shows how lab test lines get edited. For waived tests you run in-house, see our 87811 QW denial answer.
Here is an illustrative example. Your clinic draws three tubes for an outside cardiologist’s order. You bill one 36415 at $9.34 to Medicare. The reference lab bills its panel separately, and the patient owes no coinsurance on your draw.
How do you fix a 36415 claim denied for provider information?
Read the remark code first. Then correct only the box the payer flagged. Check that Box 33 shows your group, Box 17 shows the outside orderer, and Box 24J shows an enrolled clinic practitioner. Send Medicare a new claim after a CO-16 return. Most commercial plans take a corrected claim with frequency code 7.
If the payer still denies a clean claim, appeal with the order and the draw log. Our appeal letter generator drafts the request. Our timely filing calculator shows how many days you have left.
3-step checklist
- Bill 36415 under your clinic’s group NPI in Box 33, and never under the outside ordering doctor.
- Put the outside doctor in Box 17 with qualifier DK, and your supervising clinic practitioner in Box 24J.
- Bill one 36415 per encounter, let the reference lab bill the test, and do not charge Medicare patients coinsurance on the draw.
FAQ
Can the outside ordering physician bill 36415?
No. Medicare pays the specimen collection fee only to the party that extracted the specimen. If your clinic’s phlebotomist drew the blood, your clinic bills 36415. The outside physician goes in Box 17 as the ordering provider.
Does a draw station need a CLIA number to bill 36415?
No. Under 42 CFR 493.2, a site that only collects or prepares specimens is not a laboratory. A draw-only station needs no CLIA certificate for 36415. The lab that runs the test reports its own CLIA number.
Can the reference lab also bill 36415 for the same draw?
No. Only one collection fee is allowed per specimen type per encounter. It goes to whoever drew the blood. A reference lab that only received the tubes did not extract the specimen, so it cannot bill the draw.
Is 36415 subject to the Medicare deductible?
No. Chapter 16, section 60.1.2 of the Medicare Claims Processing Manual says the deductible and 20 percent coinsurance do not apply to specimen collection fees. The 2026 Medicare fee is $9.34 per encounter.
How many units of 36415 can I bill?
Bill one unit per encounter. Medicare allows one collection fee per specimen type per patient encounter, regardless of how many tubes you fill. A series of draws for one test, such as a glucose tolerance test, counts as one encounter.
Sources
My methodology was simple. I read the CMS lab chapter on specimen collection, the CLIA definition of a laboratory, and the CMS-1500 instructions for items 17 and 24J. Commercial rules differ, so confirm details with each plan.
- CMS, Medicare Claims Processing Manual, Chapter 16, sections 60.1 and 60.1.2. Accessed 14 Nov 2026.
- 42 CFR 493.2, CLIA definitions (laboratory). Accessed 14 Nov 2026.
- CMS MLN, CMS-1500 and 837P course, item 24J. Accessed 14 Nov 2026.
- CMS MLN, CMS-1500 and 837P course, item 17. Accessed 14 Nov 2026.
- NUCC, 1500 Claim Form Reference Instruction Manual. Accessed 14 Nov 2026.
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Last updated: 14 November 2026 · Educational content for U.S. billers. Check each payer’s current policy.
