Aetna:
www.aetna.com/docfind
AmeriHealth:
https://www.amerihealth.com/find_a_provider/
Anthem Blue Cross:
https://www.anthem.com/health-insurance/provider-directory/searchcriteria
Avmed:
https://www.avmed.org/includes/ProviderDirectoryRedirect.aspx
BCBS IL:
https://public.hcsc.net/providerfinder/search.do?corpEntCd=IL1
Blue Cross Blue Shield MA:
https://www.bluecrossma.com/wps/portal/members/using-my-plan/doctors-hospitals/findadoctor/
Blue Cross Blue Shield MI:
http://www.bcbsm.com/index/find-a-doctor.html
Blue Cross Blue Shield TX:
http://www.bcbstx.com/onlinedirectory/par_hs.htm
Blue Cross Idaho:
https://www.bcidaho.com/BCI_V2/prov_directory/prov_dir_criteria.aspx
Blue Shield CA:
https://www.blueshieldca.com/fap/app/search.html
CareFirst BCBS :
https://member.carefirst.com/mos/#/fappublic/search/standard
Cigna:
https://hcpdirectory.cigna.com/web/public/providers
Connecticare:
http://www.connecticare.com/providerdirectory/
Coventry Health Care:
http://coventryhealthcare.com/find-a-doctor/
Delta Dental:
https://www.deltadental.com/DentistSearch/DentistSearchController.ccl
Dental Select:
https://www.dentalselect.com/find-a-provider/
EmblemHealth:
http://www.emblemhealth.com/Find-a-Doctor.aspx
Florida Blue:
https://providersearch.floridablue.com/providersearch/pub/index.htm
Harvard Pilgrim:
https://www.providerlookuponline.com/harvardpilgrim/po7/Search.aspx
Health Net:
https://www.healthnet.com/portal/providerSearch.action
Highmark:
https://provdir.highmarkbcbs.com/
Horizon BCBS:
http://directory.horizonblue.com/
Humana:
https://www.humana.com/finder/medical?pageId=6c5b1235526c4acb9cdd22cc029b9a72
Independence BCBS:
https://www.ibx.com/individuals/find_provider/index.html
Kaiser Permanente:
https://healthy.kaiserpermanente.org/health/care/consumer/locate-our-services/doctors-and-locations?kp_shortcut_referrer=kp.org/finddoctors
Premera Blue Cross:
https://www.premera.com/wa/visitor/find-a-doctor/doctor-dentists-and-more/
UnitedHealthcare:
https://connect.werally.com/plans/uhc
United Healthcare Oxford:
https://www.oxhp.com/secure/providerSearch/content_doctor.html