Managed Care Organizations / 302R00000X
Non-Individual · classification
302R00000X Health Maintenance Organization
302R00000X is the taxonomy code for Health Maintenance Organization, in the NUCC group “Managed Care Organizations”. It is a code for organizations — the kind used on a Type 2 NPI. It has no entry in the CMS Medicare taxonomy crosswalk.
- 1Taxonomy code 302R00000X
- 2Level Classification
- 3Medicare specialty Not in the crosswalk
- 4Codes in this group 4
Definition
(1) A form of health insurance in which its members prepay a premium for the HMO's health services which generally include inpatient and ambulatory care. For the patient, an HMO means reduced out-of-pocket costs (i.e. no deductible), no paperwork (i.e. insurance forms), and only a small copayment for each office visit to cover the paperwork handled by the HMO; (2) A organization of health care personnel and facilities that provides a comprehensive range of health services to an enrolled population for a fixed sum of money paid in advance for a specified period of time. These health services include a wide variety of medical treatments and consults, inpatient and outpatient hospitalization, home health service, ambulance service, and sometimes dental and pharmacy services. The HMO may be organized as a group model, an individual practice association (IPA), a network model or a staff model.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 302R00000X sits
- Group: Managed Care Organizations — code 2 of 4 in the group
- Classification: Health Maintenance Organization 302R00000X
Health Maintenance Organization has no specializations, so 302R00000X is the only code for it. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
302R00000X has no entry in the CMS Medicare Provider and Supplier Taxonomy Crosswalk. That usually means Medicare does not enroll this kind of provider under its own specialty — organizations of this type enroll, if at all, under a facility or supplier type rather than a practitioner specialty.
Related codes
No other codes share the classification Health Maintenance Organization. The rest of Managed Care Organizations is on the group page.
History of 302R00000X
NUCC's notes record no dated changes for 302R00000X. The code set is republished every January and July, when codes are added, retitled or marked inactive; this page reflects version 26.1, so check the NUCC site if you are reading it after the next release.
Similar codes in other groups
If 302R00000X is not quite right, these codes in other groups share a word with it — often the same field practised by a different kind of provider:
- 251T00000X PACE Provider Organization (Agencies)
- 335U00000X Organ Procurement Organization (Suppliers)
- 3336M0003X Managed Care Organization Pharmacy (Suppliers)
Find providers with 302R00000X
Using 302R00000X
The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.
Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV). Checked 2026-10-24. Methodology.