Stage 2
Step 2 — Segmenting to the Right Cohorts
A national corpus is too broad to act on. NIR competes in two arenas — its Illinois neighbors and the national NAATP membership — so we cut the cohort down to exactly those.
The funnel
7,791
All provider domains
CARF · JC · NAATP union
3,603
Expose a WP API
the harvestable set
217
IL-connected
joined back to state data
128
NAATP cohort
the national quality bar
How a domain becomes “IL-connected”
None of the directories share a universal key, so we joined each harvested domain back to its source records and read the state field — CARF's state, the Joint Commission's location, SAMHSA's facility state, and NAATP's schema_state. Any domain touching Illinois counts.
That yields 217 IL-connected domains, which split into 188 IL-local providers and 29 multi-state national operators that happen to run Illinois facilities.
Cohort hygiene
- The same hygiene rules used for the national join were applied to Illinois: domains that store service pages as post type, or that are institutional news feeds rather than provider blogs, are excluded so they don't skew the blog counts.
The IL-local cohort
188 Illinois provider domains. These define the local competitive set.
4crcc.comaah.orgabbotthousenursing.comabeautifulmindchicago.comadapt.usadvocatehealth.comaidcares.organb.todayandersonrehabinstitute.comangelofgodresourcecenter.organixter.orgaorservices.orgarcqca.orgasafehaven.orgasafeplaceforhelp.orgavenuestoindependence.orgbanyanchicago.combchd.usbewcbhc.orgblessinghealth.orgbobbybuonauroclinic.combrightspringhealth.combtcfchi.orgbway.orgcareaddiction.comchestnut.orgchicagotreatment.comcitadelhealthcare.comcityofchicago.orgclearbrook.orgcolemantricounty.orgcommlink.orgcompasshealthcenter.netcompconnect.orgcountrysideassn.orgcrconline.infocuinc.orgcwtc.orgdeltacenter.orgdepaul.edudivinerecoveryhope.comdupagehealth.orgeastersealsdfvr.orgelitehousesofsoberliving.comelmcity.orgelvalor.orgendeavorhealth.orgenvisionunlimited.orgfamilyrecoverycenters.comfayco.orgfriendshiphouseillinois.orgfuturesunlimited.orggarfieldcounseling.orggoodwillchicago.comgoodwillni.orggopyouthcenter.orggpsbh.orggreat-heights.comhabilitative.orghardinhouseinc.orghascares.orghcenter.orgheartlandalliance.orghelpinghand-il.orgheritagenet.orghope.ushourhouserecovery.orghrcec.orghrdi.orgiaginc.orgicannfp.comicwaukegan.orgihrpontiac.comimpactbehavioral.orgiroquoismhc.comivigrundy.comjasperhealth.orgjemtreatmentcenter.comjosselyn.orgkccounselingllc.comkendallhealth.orgkennethyoung.orgkincareinc.comlakecountyil.govlchealth.comlifelongaccess.orglifeskillscs.comlighthouserecoveryinc.comlittlecity.orgllgi.orgloyolamedicine.orgmacnealhospital.orgmadohealthcare.commaha-us.orgmarianjoy.orgmarshmallowshope.orgmbhshealth.orgmc708.orgmcchs.orgmcmhc.commemorial.healthmemorialmedical.commercymedcenter.commhcwi.orgmontgomeryco.commoultriecounseling.orgmutualground.orgmyarrowleaf.orgmytrellus.orgnch.orgnewageservices.orgnewchoiceintervention.comnewfoundationcenter.orgnicasa.orgnm.orgnorthernillinoisrecovery.comnssc.orgoak-leyden.orgohinc.orgorc.lifeorchardvillage.orgpaloscommunityhospital.orgparents-alliance.orgparklawn.compavilionhospital.compchcares.orgpiattmhc.orgpilsenwellnesscenter.orgpioneercenter.orgplcca.orgpositivesobrietyinstitute.compresencehealth.orgradiusfoundationinc.orgrampcil.orgrecoveryconcepts.orgremediesrenewinglives.orgrevivetc.comrinconfamilyservices.orgrisedoco.comrosemedical.orgrssichicago.orgrushcopley.comsafreedomcenter.orgsaheartland.orgsccsil.orgschsrushville.comscpf-inc.orgserenityhouse.comserenitytreatmentcenter.orgshoreservices.orgsilveroaksbehavioralhospital.comsinai.orgsinnissippi.comsiu.eduspringsourcecenter.comsralab.orgstartinc.orgstcil.orgsteppingstonesrockford.orgsteppingstonestreatment.comstmaryshospitalkankakee.orgstreatorunlimited.orgsuncloudhealth.comsynapsehouse.orgtasc.orgthemathersrecovery.comtheworkshopgalena.orgthresholds.orgthrivecc.orgtikvahhealing.orgtopoftheworldranch.comtpoint.orgtransmhs.orgtrilliumplacehealth.orgtrilogyinc.orgtruebelieverscc.orgturningpointeautismfoundation.orgtwi.orguccsinc.orguchicagomedicineadventhealth.orgucpseguin.orgveteranspathtohope.orgwaybackinn.orgwellspringresources.cowillcountyhealth.orgyellowbrickprogram.comyourchrc.orgzoelifepsychiatricservices.com
The national operators
29 multi-state chains with an Illinois footprint — treated separately so a national content machine doesn't masquerade as a local peer.
abraxasyfs.orgadolescentgrowth.comaffecttherapeutics.comascension.orgbanyantreatmentcenter.combaymark.combestbuddies.orgcads-ia.comcenterstone.orgeasterseals.comeleanorhealth.comfootprintstorecovery.comgatewayfoundation.orggeogroup.comhazeldenbettyford.orgmeadowsoutpatient.commedmark.commethadonetreatmentcenter.comneurorestorative.comnulifebehavioralhealth.compfh.orgrecoverycentersofamerica.comriverwoodgroup.comrosecrance.orgsalvationarmy.orgsymetriarecovery.comunitypoint.orgva.govwestcare.com
The NAATP quality bar
Separately, we pulled the 128 NAATP member domains with a WP API. NAATP members publish far more, and far longer, than the typical Illinois blog — they are the standard NIR's content is measured against in the next steps.