What's different here
- Medical and health care payments are reportable even to corporations. 1099-MISC box 6 covers payments to physicians, other providers and suppliers of medical services, and the corporate exemption doesn't apply. Most AP systems default corporations to "no 1099"; a health-system vendor master needs the override.
- Providers need more than a TIN match. A provider's TIN can match IRS records while the NPI is inactive, the Medicare enrollment is revoked, or the individual has opted out. Paying, credentialing or billing under that provider is a CMS problem, not an IRS one, and the checks are separate databases (NPPES, PECOS, the opt-out list).
- Exclusion screening is mandatory, not optional. HHS-OIG's LEIE and the state Medicaid exclusion lists must be checked at hire or contract and monthly thereafter for anyone whose work is billed to federal healthcare programs; payments to an excluded party are non-reimbursable and can trigger civil monetary penalties. OFAC still applies on top.
- Locum tenens, 1099 physicians and group practices produce the classic line-1 problem: the physician's SSN with the practice name, or the practice EIN with the physician's name. See the W-9 name guide.
- Patient refunds and settlements are generally not 1099 reportable, but attorney settlements are (box 10, gross proceeds), and the attorney's TIN needs verifying like any other.
The forms a health system actually files
| Form | What it covers here | Threshold (2026 payments) | To the IRS | The trap in this sector |
|---|---|---|---|---|
| 1099-MISC box 6 | Medical and health care payments to physicians, groups, labs, imaging, ambulance, DME suppliers | $2,000 ($600 for 2025 payments) | February 28 on paper, March 31 electronically; recipient copy January 31 | The corporate exemption does not apply; the AP default of 'corporation, no 1099' is wrong for every clinical vendor. |
| 1099-NEC | Non-clinical contractors: consultants, locums agencies billing for services, IT, recruiters | $2,000 | January 31 (next business day if a weekend); no automatic extension | Locum physicians paid directly are box 1 NEC if the service is medical only when paid to the individual as compensation; most systems put physician services in MISC box 6 and get it right by accident. |
| 1099-MISC box 10 | Gross proceeds to a claimant's attorney on a malpractice or liability settlement | $600 (unchanged by the 2025 law) | February 28 on paper, March 31 electronically; recipient copy January 31 | Paid to the attorney even when the check is joint; the attorney's TIN is the one that must match. |
| 1099-MISC box 3 | Research subject payments, patient incentives, prizes | $2,000 | February 28 on paper, March 31 electronically; recipient copy January 31 | Gift cards count; subject payments are the usual source of missing TINs because the study team collects them. |
| 1042-S | Foreign physicians, researchers and speakers paid for U.S. services; foreign vendors | None | March 15 | A W-9 from a visa holder who is not yet a resident is the wrong form; see the foreign vendor guide. |
| 1099-C | Only if the system is an applicable entity (a lender or a financial institution affiliate) | $600 | February 28 on paper, March 31 electronically; recipient copy January 31 | Forgiven physician education loans are compensation (W-2 or 1099), not a 1099-C item, per CCA 200003008 below. |
Form 945 carries any backup withholding the system takes from unmatched providers and subject payees; the 945 matching program compares it to box 4 of every 1099 filed under the EIN. A system that files 1099s under hospital, physician-group and foundation EINs needs a 945 for each one that withheld.
Where a health system's notices come from
- Individual providers paid through a group. The W-9 shows the practice name on line 1 and a physician's SSN, or the physician's name with the group EIN. Either pair fails the IRS match and lands on the CP2100. The fix is the line 1 rule applied at credentialing, where the system already has the NPI record with the correct legal entity.
- Vendors created from an invoice. A lab or DME supplier set up by a clinic coordinator from an invoice header is a 1099-MISC box 6 payee with no W-9. The solicitation rules give the dates that have to be in the file before a 972CG arrives.
- Acquired practices. A physician group bought in July keeps billing under its old EIN until the TIN is retired, and the system files under both. PLR 201308024 (below) says the acquirer may rely on the transferred W-9 records if the chain of custody is documented; see the merger and new EIN guide.
- Research subjects. Hundreds of small payments to individuals collected by study coordinators, often as gift cards, with TINs written on consent forms or not at all. Each one over the threshold is a 1099-MISC box 3, and a missing TIN is a full-rate penalty.
- Volume. Because box 6 reaches corporations, a 400-bed hospital files more 1099s than a manufacturer ten times its size, and the 972CG scales with the count.
The checks that sit on top of the TIN
| Check | Source | When | What a failure means |
|---|---|---|---|
| Name/TIN match | IRS TIN Matching Program (Pub 2108A) for the 1099-MISC and NEC payees | At credentialing or vendor setup, before the first payment | A CP2100 line in the spring; backup withholding if not resolved |
| NPI active and matched to the entity | NPPES | At credentialing; re-check on name or TIN change | Claims denied; the wrong legal entity on the 1099 |
| Medicare enrollment and opt-out | PECOS; opt-out affidavit list | At credentialing, then on each revalidation | Billing under a revoked or opted-out provider is a CMS problem |
| Exclusions | OIG LEIE; state Medicaid exclusion lists; SAM.gov | At hire or contract, then monthly | Non-reimbursable payments and civil monetary penalties |
| Sanctions | OFAC SDN and consolidated lists | At setup and on list updates | Blocked payment, reportable to OFAC |
The sanctions screening guide covers the OFAC and SAM side. The IRS checks and the CMS checks fail independently: a provider can match IRS records and be excluded, or be enrolled and have a W-9 that fails. One record with dates for each is what both an IRS examiner and a CMS auditor ask for.
A vendor-onboarding sequence that covers both regimes
- Collect the W-9 (or W-8 for foreign providers and researchers) and verify the name/TIN pair against IRS records before setup.
- For clinicians and clinical vendors: validate the NPI in NPPES, confirm Medicare enrollment status in PECOS, check the opt-out list, and record the dates.
- Screen the entity and its principals against OFAC SDN/Consolidated, SAM.gov, the OIG LEIE and your state's Medicaid exclusion list; re-screen monthly.
- Flag corporations that receive medical payments so the 1099-MISC box 6 rule applies at year end.
- Keep the W-9, the match result, the NPI/PECOS checks and the exclusion screens in one record; a CMS audit and an IRS notice will each ask for their half.
A worked example: the group-practice CP2100
A regional health system files 6,200 Forms 1099-MISC for tax year 2026, 4,100 of them box 6 payments to clinical vendors and physicians. The spring CP2100 lists 310 mismatches: 240 physicians paid through groups where the W-9 carries the group name with the physician's SSN, 50 suppliers set up from invoices with no TIN, 20 others. The system sends B-Notices within 15 business days and starts backup withholding at 24 percent on the 70 that do not respond within 30 business days.
Eighteen months later the 972CG proposes penalties on the 310 returns at $340 each, $105,400, and the same again under section 6722, because the IRS treats the statement to the payee as a second failure.
The response that works: solicitation records for all 310 (W-9 requested at setup, re-solicited after the CP2100), the B-Notice copies, and the withholding deposits on Form 945. Under Reg. 301.6724-1 that record is reasonable cause for the 240 group-practice returns and the 50 invoice vendors alike; without it the system pays.
Annual maximum at the $340 rate: $4,191,500, or $1,397,000 for a filer with average gross receipts of $5 million or less. Section 6722 charges the same amounts again for the payee statements. Returns due in 2027, Rev. Proc. 2025-32. Full tables: the 972CG estimator and the figures page.
Questions health systems ask
Do we send a 1099-MISC to an incorporated physician group?
Yes. Box 6 medical and health care payments are reportable to corporations; only payments to tax-exempt hospitals and government-owned facilities are excepted. The exemption in the W-9 instructions for corporations does not reach box 6.
The physician's W-9 has the practice name and her SSN. Which do we file under?
Neither, until it is fixed. The name on line 1 must belong to the TIN: her name with her SSN, or the practice's legal name with its EIN. The line 1 guide has the combinations; filing the mismatched pair is a guaranteed CP2100 entry.
Are payments to research subjects reportable?
Yes, as other income on 1099-MISC box 3 when the year's payments to one subject reach the threshold, including gift cards. Reimbursed travel is not income if accounted for. Collect the TIN at enrollment; a W-9 after the study ends is rarely answered.
A provider is on the OIG exclusion list but the TIN matches. Do we still file the 1099?
Yes. The 1099 reports what you paid; exclusion governs whether you should have paid at all and whether the claim is reimbursable. The two records are kept together but the IRS form is filed regardless.
Can we rely on the W-9s of a practice we acquired?
Yes, if you keep the predecessor's W-9 images, dates and match results with the account (PLR 201308024). Re-solicit only where the acquired record is missing or the TIN changed. The merger guide covers the EIN change itself.
We withheld 24 percent from a physician who later gave a valid W-9. Do we refund it?
No. Deposited backup withholding is the payee's credit on their return (Conseco; Peretz). Stop withholding on the next payment, report the amount in box 4, and point the physician to the payee page.
What the IRS and the courts have said about healthcare payers
- Cardiovascular Center, LLC v. Commissioner, T.C. Memo. 2023-64 (docket record): a medical practice that treated its workers as contractors from 2010 to 2015 and filed no Forms 1099 lost section 530 relief on the reporting consistency requirement alone; the 1099-NEC is the cheapest insurance a practice paying contractors can buy.
- Pediatric Impressions Home Health, Inc. v. Commissioner, T.C. Memo. 2022-35 (docket record): a home health agency that reclassified about 99 nurses as contractors in 2016 could not claim section 530 for them, because several had been employees before; converting employees to contractors forfeits the relief whatever the paperwork afterward.
- Medical Emergency Care Associates, S.C. v. Commissioner, 120 T.C. 436 (2003): a practice that filed its 1099s for 25 contractor physicians almost two years late kept section 530 relief; late forms cost the capped per-return penalty, unfiled forms cost the classification.
- Holden v. Commissioner, T.C. Memo. 2015-131 (docket record): the IRS argued a physician's practice could not deduct payments to workers because no 1099s were filed; the Tax Court said an unfiled 1099 is a penalty problem, not a deduction problem.
- Chief Counsel Advice 200003008: a hospital forgiving a physician's education loan in exchange for service reports compensation on the W-2 or 1099, not a 1099-C, because most hospitals are not applicable entities under section 6050P.
- Chief Counsel Advice 199928029: a personal injury attorney paying a client's medical providers out of a settlement is the 1099 payer only if the attorney decides which provider claims are bona fide and what to pay; a conduit is not a payer, which is why the hospital still reports what it receives from the patient's recovery as its own revenue, not as a 1099 item.
- Private Letter Ruling 201308024: a successor may rely on transferred W-9 records and the predecessor's procedures after an acquisition and need not re-solicit; the rule practices rely on when groups are bought.
More in the worker classification and what is reportable topics of the finder. On the oversight side, TIGTA's backup withholding audits (2016-40-078, 2021-40-030) count missing-TIN 1099-MISC filers by the thousands; the TIGTA and GAO page digests them.