Box 32, 32a, 32b: Service facility location
By Dr. Daniel Turner, DC · Reviewed September 2, 2026
What goes in Box 32, 32a, 32b of the CMS-1500?
Where the services actually happened, with the facility NPI: the physical location, which can differ from the billing address in Box 33.
What does Box 32, 32a, 32b mean for chiropractic billing?
Multi location practices live here. Each office’s address and, where enrolled, its location NPI belongs on the claims for visits at that office. Payers that enroll locations individually will bounce claims whose Box 32 does not match an enrolled site, and address details down to the ZIP plus four matter to some payers.
The mistakes that turn this box into denials
- ✗One office’s address riding on all locations’ claims
- ✗A location the payer never enrolled
- ✗ZIP formats that fail payer validation
The denials this box causes
- →CO-16 · see the full fix in the denial library
How Cervica fills Box 32, 32a, 32b
Cervica generates the CMS-1500 and its electronic 837P equivalent from the chart and the payer's own rules: identifiers from the verified insurance record, modifiers and codes per payer, and pre submission scrubbing that flags exactly the mistakes listed above before a claim leaves the building.
Related boxes
- →Box 33, 33a, 33b · Billing provider info and NPI
General information for billing teams, not billing advice for any individual claim. The NUCC's 1500 Claim Form instructions and each payer's companion guides control.