MN
(1)(29)
Corporations and LLCs are shown in rectangles. Partnerships are shown in triangles.
UNITEDHEALTH GROUP INCORPORATED
MN 100% (13)(14)(15)(16)(80) 100%(15)(73)
Page 1 of 5
As of Dec. 31, 2006
Continued
United HealthCare Services, Inc.
DE 100%(26) RI 100%(9)(15) DE 100%(38) DE UnitedHealth Networks, Inc. 100%(65) DE 100%(15)(16) Uniprise, Inc. UnitedHealthcare of New England, Inc. (HMO) (M+CO) NAIC No. 95149 OH LA MD 100%(15)(16)(5) 100%(15)(16) NC 100% 100%(2) DE
DE
100%
DE
100%(52)(15)
DE
Golden Rule Financial Corporation
Mid Atlantic Medical Services, LLC
Oxford Health Plans LLC
WI
100%(3)(15)(16)
American Medical Security Life Insurance Company (Ins) NAIC No. 97179 IN 100%(22)
MD
100%(5)
Physicians Health Plan of Maryland, Inc.
CA 100%(74) Investors Guaranty Life Insurance Company (Ins.) NAIC No. 64890 DE CT 100%(75) Fidelity Insurance Group Inc. Oxford Health Plans (CT), Inc. (HMO) NAIC No. 96798 NJ 100% Fidelity Benefit Administrators, Inc. MD CT 100% Physicians Medical Group, Inc. Arizona Physicians IPA, Inc. 100% 100%(5) AL 100%(15) United HealthCare of Alabama, Inc. (HMO) (M+CO) NAIC No. 95784 AZ 100% United HealthCare of Arizona, Inc. (HMO) NAIC No. 96016 AZ 100%
Continued
UnitedHealthcare, Inc.
UHIC Holdings, Inc.
100%
MD
76.7%(63)
Golden Rule Insurance Company (Ins.) NAIC No. 62286 IN 100%(27)
MD-Individual Practice Association, Inc. (HMO) (FQ) NAIC No. 96310 MD 100%(53)
Oxford Health Plans (NJ), Inc. (HMO) NAIC No. 95506
United HealthCare of Louisiana, Inc. (HMO) NAIC No. 95833 MD 100%(21) UnitedHealthcare of the Mid-Atlantic, Inc. (HMO) NAIC No. 95025 NE 100%(8) United HealthCare of the Midlands, Inc. (HMO) (M+CO) NAIC No. 95591 MO 100%(11)
UnitedHealthcare of North Carolina, Inc. (HMO) (M+CO) NAIC No. 95103 TN 100%(15) United HealthCare of Tennessee, Inc. (HMO) NAIC No. 11147 TX 100%(16) United HealthCare of Texas, Inc. (HMO) NAIC No. 95765 UT 95.67%
United HealthCare of Ohio, Inc. (HMO) (M+CO) NAIC No. 95186 UK 100%
UnitedHealth Capital, LLC
100%(30)(14)(15) CT United HealthCare Insurance Company (Ins.) NAIC No. 79413
DE
100%
HealthAllies, Inc.
KY
100% 100%(33) IL United HealthCare Insurance Company of Illinois (Ins.) NAIC No. 60318 NY 100%(32) United HealthCare Insurance Company of New York (Ins.) NAIC No. 60093 DE 100%(16)(58) Definity Health Corporation
All Savers Insurance Company (Ins.) NAIC No. 82406 CA 100%(42)
UnitedHealth Europe Limited UK
Optimum Choice, Inc. (HMO) NAIC No. 96940
Commonwealth Physicians Services Corporation DE 100% Exante Financial Services, Inc. UT 100%
Oxford Benefit Management, Inc.
100% UnitedHealth Primary Care Limited
Rooney Life Insurance Company (Ins.) NAIC No. 73130 IN 100%
MD
100%(60) NY 100%
FL
100%(16)
AR
100%(16)
MN
100%(5)
HomeCall Pharmaceutical Services, Inc.
Oxford Health Plans (NY), Inc. (HMO) NAIC No. 95479 NY 100%(76)
Neighborhood Health Partnership, Inc. (FL HMO) NAIC No. 95123 OH 100%(15)(16) United Medical Resources, Inc. MI 100%
United HealthCare of Arkansas, Inc. (HMO) NAIC No. 95446 CO 100% United HealthCare of Colorado, Inc. (HMO) NAIC No. 95090 FL 100%
UK
100%
Definity Health of New York, Inc.
UnitedHealth Primary Care Plus Limited
Exante Bank, Inc.
UnitedHealthOne Agency, Inc.
MD
100%(61)
HomeCall, Inc.
Oxford Health Insurance, Inc. (Ins.) NAIC No. 78026
United HealthCare of the Midwest, Inc. (HMO) (M+CO) NAIC No. 96385 MS 100% United HealthCare of Mississippi, Inc. (HMO) NAIC No. 95716 NY 100%
United HealthCare of Utah (HMO) NAIC No. 95501 WI 100% UnitedHealthcare of Wisconsin, Inc. (HMO) (M+CO) NAIC No. 95710 WI 100%
ME
100%(48) UnitedHealth Advisors, LLC
DE
100%
100%(31) OH United HealthCare Insurance Company of Ohio (Ins.) NAIC No. 73518 NY 100%(36) Unimerica Life Insurance Company of New York NAIC No. 11596 100%(57) DE OneNet PPO, LLC
MN
100%(5)
Lemhi Corporation
Passport Coast-toCoast, LLC
DE
100%
MD
100%(62)
IBA Health and Life Assurance Company NAIC No. 81450 MI 100%
FirstCall, Inc.
United HealthCare of Florida, Inc. (HMO) (M+CO) NAIC No. 95264 GA 100%
United HealthCare Products, LLC
MD UnitedHealthcare of New York, Inc. (HMO) NAIC No. 95085 KY 94.18% (15)(24) United HealthCare of Kentucky, Ltd. (HMO) NAIC No. 96644
100%(16)
MO
100%
IBA Self Funded Group, Inc.
United HealthCare of Georgia, Inc. (HMO) NAIC No. 95850 IL 100%(7) UnitedHealthcare of Illinois, Inc. (HMO)(FQ) NAIC No. 95776
ProcessWorks, Inc.
United HealthCare Service LLC MD 100%(58) DE 100%(10)
MLH Life Trust
DE MI 100%
100%(16)(81)
MD
100%(55)
Southwest Michigan Health Network Inc. IN
UnitedHealthcare Services Company of the River Valley, Inc.
IL
100%(82)
IL
100%(83)
MAMSI Insurance Resources, LLC
Alliance Recovery Services, LLC
100%
WI
100%(35)
Arnett Health Plans, Inc. MD 100%(56) IN 100% IN 100% IN 100% Arnett HMO, Inc. (HMO) NAIC No. 95440
UnitedHealthcare Insurance Company of the River Valley NAIC No. 12331
UnitedHealthcare Plan of the River Valley, Inc. NAIC No. 95378
UnitedHealthcare Alliance LLC
SC
100% Duncan Printing Services, LLC
Midwest Security Holding, Inc. WI 100%(71) WI 100%(15) WI 100%(16) Midwest Security Life Insurance Company (Ins.) NAIC No. 79480
MAMSI Life and Health Insurance Company (Ins.) NAIC No. 60321
Health Care Administrators, Inc.
Arnett Practice Association, LLC
Midwest Security Care, Inc.
Midwest Security Administrators, Inc.
Page 2 of 5
As of Dec. 31, 2006
UnitedHealth Group Incorporated subsidiaries continued
DE 93.5%(17)(44)
Continued
United HealthCare Services, Inc. subsidiaries continued
DE DE 100% Ovations, Inc. Specialized Care Services, Inc. 100%
AmeriChoice Corporation
MN NY 100% NY EverCare of New York, IPA, Inc. 100% MD 100%(14)(15)(16)(19) Spectera, Inc. DE 100% PacificDental Benefits, Inc.
100% (14,15,16)
DE
100% (14) (15) (16) Dental Benefit Providers, Inc.
CA United Behavioral Health
100%
DE
100%
ACN Group, Inc.
AmeriChoice Health Services, Inc.
Spectera of New York, IPA, Inc. CA
CA NY 100%(15)(5) 100% Spectera Vision Services of California, Inc. (Knox Keene) 100%(4) IL
100% Dental Benefit Providers of California, Inc. (Knox Keene)
CA
100% U.S. Behavioral Health Plan, California (Knox Keene)
NV
100% AmeriChoice Alliance, Inc.
DE
100%(5)(16)(17) WI Lifemark Corporation 100%(64)
CA
100% Pacific Union Dental, Inc. (Knox Keene)
NV
100%
Unimerica Insurance Company (Ins.) NAIC No. 91529 DE 100%
Nevada Pacific Dental, Inc. (LSHMO) NAIC No. 95758
Managed Physical Network, Inc. IL
VA
AZ
100%
DE
100%
100% Illinois Pacific Dental, Inc.
TX
100%(46)
NY
100%
Evercare of Arizona, Inc.
Evercare Connections, Inc.
United Resource Networks, Inc.
Spectera Vision, Inc. NAIC No. 95385
National Pacific Dental, Inc. (HMO) NAIC No. 95251
ACN Group IPA of New York, Inc.
100%(4)(23) Dental Benefit Providers of Illinois, Inc. (LSHMO) NAIC No. 52053 NY 100%(5)
CA
100%
NJ
100%(67)
Behavioral Health Administrators
AmeriChoice of New Jersey, Inc. (HMO) NAIC No. 95497 NY 100%(68)(5)
NY
100% AmeriChoice of New York, Inc. (HMO) NAIC No. 95475 PA 100%(69)
NY TX 100%(79) DE 100% Evercare Collaborative Solutions, Inc.
100%
MD
100% DE 100% CA NPD Dental Services, Inc. 100% ACN Group of California, Inc. (Knox Keene)
Evercare of Texas, L.L.C. (HMO) NAIC No. 11141
United Resource Networks IPA of New York, Inc. DE 100%
Special Risk International, Inc. IL 100%(5) NV EnvisionCare Alliance, Inc. 100%
Dental Insurance Company of America (Ins.) NAIC No. 60218 NY DBP-KAI, Inc. 100%
United Behavioral Health of New York, I.P.A., Inc.
DE
100%(59)
100%
Specialty Resource Services, Inc.
Evercare Hospice, Inc. NJ DE 100% 100%(48) ME
NPD Insurance Company, Inc. (Ins.) NAIC No. 12225
CA
100%(5) MD Preferred Chiropractors of California 100%(4) Dental Benefit Providers of Maryland, Inc. (LSHMO) NAIC No. 47040
AmeriChoice of Pennsylvania, Inc. (HMO) NAIC No. 95033 100%(70) MI Great Lakes Health Plan, Inc. (HMO) NAIC No. 95467 AZ
100%
National Benefit Resources, Inc.
Evercare Hospice of Collier County, Inc.
DCG Holdings, Inc. (fka Disability Consulting Group) CA ME 100%(16) ME 100%(47)
MN
100%
100%(5)
DE
100%
Medical Network, Inc. dba Health A to Z
Evercare Hospice of Manatee County, Inc.
DCG Resource Options, LLC
Disability Consulting Group, LLC
Sierra Chiropractic, Inc.
Information Network Corporation
PA
100% (5)
Revolution Health Systems, Inc.
Page 3 of 5
As of Dec. 31, 2006
UnitedHealth Group Incorporated subsidiaries continued
DE 100% DE Ingenix, Inc. 100% Caymans 100% IN UnitedHealthcare International Asia, LLC H&W Indemnity, Ltd. 100%(15)(16)(78) PacifiCare Health Systems, LLC DE 100%(77)
PacifiCare Health Plan Administrators, Inc. TX 100% PacifiCare of Texas, Inc. (HMO) NAIC No. 95174 IN 99%(41) PacifiCare Life and Health Insurance Company (Ins) NAIC No. 70785 CO 100%(50) PacifiCare Life Assurance Company (Ins) NAIC No. 84506 100%(5)
DE
100%(18) Ingenix Pharmaceutical Services, Inc. Netherlands 100% Costa Rica 100%
KS
100% GeoAccess, Inc
DE
100%
Hong Kong
99%(25) DE 100%
DE
100%(15)(16)
Aperture Credentialing, Inc. AZ 100%
UnitedHealthcare Asia Limited
UHC International Holdings, Inc.
PacifiCare Behavioral Health, Inc. DE 100% PacifiCare Behavioral Health of California, Inc. (Knox Keene)
Ingenix International (Netherlands) BV Canada 100% MI 100% Spain 100%
E.C. Investigaciones del Sur S.A.
DE
100%
Malaysia 100% Ingenix Publishing, Inc. DE 100% Symmetry Health Data Systems, Inc. MA 100% Malaysia
50%(20) DE 100%
OK
Argentina
i3 Canada, Inc.
STATPROBE, Inc.
Worldwide Clinical Trials, SL
UnitedHealthcare International Malaysia Sdn. Bhd.
LatinTrial Argentina S.A.
UHC International Services, Inc. 100%
100% PacifiCare of Oklahoma, Inc. (HMO) NAIC No. 96903
CA 100%(12)(15)(60) RxSolutions, Inc.
DE
100%(5)
Czech
100% Hungary 96.67%(49) Uruguay 100%
Ingenix Health Intelligence, Inc.
Innovus Research (U.S.), Inc.
Ingenix International (Czech Republic), s.r.o. Sweden 100%
Integrated Healthcare Information Services, Inc. CT 100%(84) HSS, Inc.
WA
Ingenix International Hungary Ltd.
United Health Connect Sdn. Bhd.
Mauritius
100%
100% PacifiCare of Washington, Inc. (HMO) NAIC No. 48038
Bermuda
FHP Reinsurance Limited NY CA 100% 100%(86) PacifiCare Behavioral Health NY IPA, Inc. IN 100%(51) PacifiCare Insurance Company (Ins) NAIC No.12322 CA 100% Union Health Solutions, Inc.
LatinTrials Uruguay S.R.L.
UK
100%(5)
Innovus Research (U.K.), Limited
So. Africa Ingenix Pharmaceutical Services (Sweden) AB Argentina 95%(39) Finland
100%
Philippines
49.86%(34)
United Healthcare International Mauritius Limited India 62.56%(40)
Chile
100% DE 100% Philam Care Health Systems, Inc.
Ingenix Pharmaceutical Services (RSA) Proprietary Limited 100%
OR 100% PacifiCare of Oregon, Inc. (HMO) NAIC No. 95893 CA 100% PacifiCare of California (Knox Keene) AZ 100% PacifiCare of Arizona, Inc. (HMO) NAIC No. 95617 NV 100% PacifiCare of Nevada, Inc. (HMO) NAIC No. 95685 CO 100% PacifiCare of Colorado, Inc. (HMO) NAIC No. 95434
PacifiCare Dental (Knox Keene)
LatinTrials Chile S.A.
Germany
100%
Ingenix Public Sector Solutions, Inc. DE DE 100% UnitedHealth Group International, Inc. HWT, Inc. 100%
Ingenix Pharmaceutical Services (Deutschland) GmbH Hong Kong 99.99%(6)
Ingenix Pharmaceutical Services de Argentina S.R.L. Poland 100%
Mexico
100%
Aspire Global Support Services Private Limited Malaysia 70% (45)
CO 100%(15)(16) PacifiCare Dental of Colorado, Inc. (HMO) NAIC No. 11189 CA 100%
Ingenix International (Finland) Oy
LatinTrials Mexico S.A. De C.V.
MediExpress Sdn. Bhd. DE 100% India 99.95%(28) 100%
SecureHorizons USA, Inc. DE Ireland 100% 100%(5)
Ingenix International (Hong Kong) Limited
Peru i3 Poland sp z.o.o.
100% DE
LatinTrials Peru S.A. Croatia 100% UK 100% ClinPharm International Limited UK 100% (37) Costa Rica 100% Ingenix Pharmaceutical Services d.o.o. DE 94.8%(66) Ingenix Pharmaceutical Services (UK) Limited 100% Italy 99%(43) Brazil 100% DE
Salveo Holding, LLC
PsychCME, Inc.
Hygeia Corporation United Healthcare India (Private) Limited
PacifiCare International Limited
Caymans
100%(5)
DE LatinTrials Costa Rica S.A. NWH, Inc.
100%
Nova Scotia
100%
Spain
Hygeia Holdco (Nova Scotia)
India
99.99%
Salveo Insurance Company, Ltd. (Ins) CA 100% PacifiCare eHoldings, Inc.
Distance Learning Network, Inc. Singapore 100%(85)
Ingenix Pharmaceutical Services (Spain) SL Australia 100% Ingenix Pharmaceutical Services (Australia) Pty Ltd
Ingenix International (Italy) S.r.l. France 100%
100%
Latin T do Brasil Auditoria de Pesquisas Clinicas Ltda. FL 100%
Ontario
100%
Omega Insurance Advisors Private Limited
Electronic Network Systems, Inc.
Pacific Pharma Partners Ptc Ltd.
Ingenix Pharmaceutical Services (France) SARL
Hygeia Corporation (Ontario)
DE
100% SeniorCo, Inc.
DE Latin T US LLC
100%
UnitedHealth Group Finance Company, Inc.