Exhibit 21.1
Quest Diagnostics Incorporated (DE)
(Incorporated on December 12, 1990 in Delaware; FEIN No. 16-1387862)
Subsidiaries, Joint Ventures and Affiliates
Company | Registered Alternate Name | ||||||||||
100% Quest Diagnostics Holdings Incorporated (DE) | |||||||||||
100% Quest Diagnostics International Holding Limited (UK) | |||||||||||
100% Quest Diagnostics Holdings Sarl (Luxembourg) | |||||||||||
100% Quest Diagnostics Subsidiary Holdings Sarl (Luxembourg) | |||||||||||
100% Quest Diagnostics Holdings Ltd. (UK) | |||||||||||
100% ExamOne Canada, Inc. (New Brunswick) | |||||||||||
100% Quest Diagnostics Brasil Holdings Ltd. (UK) | |||||||||||
100% Quest Diagnostics Testes Forenses do Brasil Ltda. (Brazil) | |||||||||||
99.9% Quest Diagnostics HTAS India Private Limited (India) (0.1% Quest Diagnostics Subsidiary Holdings SARL) | |||||||||||
100% Quest Diagnostics of Puerto Rico, Inc. (PR) | |||||||||||
100% Quest Diagnostics do Brasil Ltda. (Brazil) | |||||||||||
100% Quest Diagnostics Ireland Limited (Ireland) | |||||||||||
100% Quest Diagnostics Subsidiary Holdings Ltd. (UK) | |||||||||||
40% Q Squared Solutions Holdings Limited (UK) | |||||||||||
100% Quest Diagnostics (Shanghai) Co., Ltd. (China) | |||||||||||
100% Quest Diagnostics Clinical Laboratories, Inc. (DE) | Advanced Toxicology Network Smithkline Beecham Clinical Laboratories | ||||||||||
100% LabOne, LLC (MO) | LabOne, Inc. of Kansas Quest Diagnostics | ||||||||||
100% ExamOne World Wide, Inc. (PA) | |||||||||||
100% ExamOne LLC (DE) | |||||||||||
100% ExamOne World Wide of NJ, Inc. (NJ) | |||||||||||
51% DGXWMT JV, LLC (DE) | |||||||||||
100% LabOne of Ohio, Inc. (DE) | Quest Diagnostics LabOne | ||||||||||
(44%) Mid America Clinical Laboratories (IN) | |||||||||||
(51%) Diagnostic Laboratory of Oklahoma LLC (OK) | |||||||||||
(70%) Quest Diagnostics Domestic Holder LLC (DE) (30% Focus Diagnostics, Inc. (DE)) | |||||||||||
40% Q Squared Solutions Holdings, LLC (DE) | |||||||||||
100% Quest Diagnostics International LLC (DE) | |||||||||||
100% Quest Diagnostics Incorporated (MD) | |||||||||||
100% Diagnostic Reference Services Inc. (MD) | |||||||||||
100% Pathology Building Partnership (MD) (gen. ptnrshp.) | |||||||||||
100% Quest Diagnostics Incorporated (MI) | Quest Diagnostics Incorporated | ||||||||||
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Exhibit 21.1
100% Quest Diagnostics India Private Limited (India) | |||||||||||
100% Quest Diagnostics Infectious Disease, Inc. (DE) | Focus/MRL, Inc. Quest Diagnostics | ||||||||||
(30%) Quest Diagnostics Domestic Holder LLC (DE) (70% Quest Diagnostics Clinical Laboratories, Inc. (DE)) | |||||||||||
100% Quest Diagnostics Investments LLC (DE) | |||||||||||
100% Quest Diagnostics LLC (IL) | Quest Diagnostics LLC | ||||||||||
100% Quest Diagnostics LLC (MA) | Quest Diagnostics LLC | ||||||||||
81.1% Quest Diagnostics Massachusetts LLC (MA) | |||||||||||
100% Quest Diagnostics LLC (CT) | |||||||||||
100% Quest Diagnostics Mexico Holding Company Trust (Mexico) | |||||||||||
100% Quest Diagnostics Mexico, S de RL de CV (Mexico) | |||||||||||
100% Quest Diagnostics Terracotta LLC (DE) | |||||||||||
100% Quest Diagnostics Nichols Institute (CA) | Nichols Institute | ||||||||||
100% Quest Diagnostics of Pennsylvania Inc. (DE) | |||||||||||
51% Quest Diagnostics Venture LLC (PA) | |||||||||||
53.5% Associated Clinical Laboratories of Pennsylvania, L.L.C. (PA) | |||||||||||
1% Associated Clinical Laboratories, L.P. (PA) | |||||||||||
52.97% Associated Clinical Laboratories, L.P. (PA) | |||||||||||
100% Quest Diagnostics Receivables Inc. (DE) | |||||||||||
100% Quest Diagnostics Turquoise LLC (DE) | |||||||||||
100 % Quest Diagnostics Ventures LLC (DE) | |||||||||||
100% Athena Diagnostics, Inc. (DE) | |||||||||||
100% American Medical Laboratories, Incorporated (DE) | |||||||||||
100% Quest Diagnostics Nichols Institute, Inc. (VA) | Nichols Institute | ||||||||||
100% Quest Diagnostics Incorporated (NV) | Quest Diagnostics Incorporated of Nevada | ||||||||||
100% Clearpoint Diagnostic Laboratories, LLC (TN) | Clearpoint Diagnostic Laboratories | ||||||||||
100% Cleveland HeartLab, Inc. (DE) | Cleveland HeartLab Services, Inc. | ||||||||||
100% Med Fusion, LLC (TN) | med fusion med fusion clin-trials med fusion clin-labs | ||||||||||
100% MetWest Inc. (DE) | Quest Diagnostics Incorporated | ||||||||||
49% Sonora Quest Laboratories LLC (AZ) | |||||||||||
100% Nomad Massachusetts, Inc. (MA) | |||||||||||
100% Laboratorio de Analisis Biomedicos, S.A. (Mexico) |
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Exhibit 21.1
100% Spectrum Holding Company, Inc. (DE) | |||||||||||
100% Solstas Lab Partners Group, LLC (NC) | Solstas Lab - Birmingham Solstas Lab - FD Molecular Solstas Lab - Federal Drive Solstas Lab - Mendenhall Oaks Solstas Lab Partners Solstas Lab - Trustee’s Tower Professional Building | ||||||||||
100% Solstas Lab Partners, LLC (VA) | |||||||||||
100% Summit Health, Inc. (MI) | Quest Diagnostics Incorporated Retail Health Network Summit Health Independent Clinical Laboratories | ||||||||||
100% Unilab Corporation (DE) | Quest Diagnostics | ||||||||||
100% AmeriPath, Inc. (DE) | |||||||||||
100% AmeriPath Cincinnati, Inc. (OH) | Richfield Laboratory of Dermatopathology | ||||||||||
100% AmeriPath Cleveland, Inc. (OH) | AmeriPath GI Institute Dermpath Diagnostics | ||||||||||
100% AmeriPath Consolidated Labs, Inc. (FL) | |||||||||||
100% AmeriPath Florida, LLC (DE) | AmeriPath Central Florida AmeriPath Northeast Florida AmeriPath Southwest Florida Bay Area Dermatopathology Dermpath Diagnostics Dermpath Diagnostics Bay Area Institute for Immunofluorescence Institute for Podiatric Pathology | ||||||||||
100% AmeriPath Hospital Services Florida, LLC (DE) | |||||||||||
100% AmeriPath Kentucky, Inc. (KY) | |||||||||||
100% AmeriPath Lubbock 5.01(a) Corporation (TX) | AmeriPath Southwest Texas | ||||||||||
100% AmeriPath Lubbock Outpatient 5.01(a) Corporation (TX) | AmeriPath Marketing USA, Inc. | ||||||||||
100% AmeriPath New York, LLC (DE) | AmeriPath Gastrointestinal Diagnostics AmeriPath Northeast Dermpath Diagnostics Dermpath Diagnostics NE-Braintree Ackerman Academy of Dermatopathology Dermpath Diagnostics New York Dermpath Diagnostics New England | ||||||||||
100% AmeriPath PAT 5.01(a) Corporation (TX) | |||||||||||
100% AmeriPath Pittsburgh, Inc. (PA) | Dermpath Diagnostics The Dermatopathology Laboratory |
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Exhibit 21.1
100% AmeriPath Texarkana 5.01(a) Corporation (TX) | AmeriPath Chappell Joyce Pathology Chappell Joyce Pathology | ||||||||||
100% AmeriPath Texas Inc. (DE) | |||||||||||
100% AmeriPath Tucson, Inc. (AZ) | |||||||||||
100% Arlington Pathology Association 5.01(a) Corporation (TX) | |||||||||||
100% Consolidated DermPath, Inc. (DE) | |||||||||||
100% DFW 5.01(a) Corporation (TX) | AmeriPath North Texas AmeriPath Dallas AmeriPath DFW 5.01(a) Corporation | ||||||||||
100% Diagnostic Pathology Services, Inc. (OK) | Dermpath Diagnostics | ||||||||||
100% Kailash B. Sharma, M.D., Inc. (GA) | |||||||||||
100% Institute for Dermatopathology, Inc. (PA) | Dermpath Diagnostics | ||||||||||
100% NAPA 5.01(a) Corporation (TX) | |||||||||||
100% Nuclear Medicine and Pathology Associates (GA) | |||||||||||
100% Ocmulgee Medical Pathology Association, Inc. (GA) | AmeriPath Georgia Gastrointestinal Diagnostics Dermpath Diagnostics | ||||||||||
100% Specialty Laboratories, Inc. (CA) | Quest Diagnostics Nichols Institute of Valencia, Inc. | ||||||||||
100% TXAR 5.01(a) Corporation (TX) | |||||||||||
Additional Entities Consolidated for Accounting Purposes | Registered Alternate Name | ||||||||||
A. Bernard Ackerman, M.D. Dermatopathology, PC (NY) | |||||||||||
AmeriPath Indianapolis, P.C. (IN) | AmeriPath Indianapolis, PSC Dermpath Diagnostics | ||||||||||
AmeriPath Milwaukee, S.C. (WI) | |||||||||||
Colorado Pathology Consultants, P.C. (CO) | AmeriPath Colorado Dermpath Diagnostics | ||||||||||
Dermatopathology of Wisconsin, S.C. (WI) | |||||||||||
Kilpatrick Pathology, P.A. (NC) | |||||||||||
Diamond Occupational Health Services, P.S.C. (PR) | |||||||||||
Southwest Diagnostic Laboratories, P.C. (CO) | |||||||||||
St. Luke’s Pathology Associates, P.A. (KS) | AmeriPath Kansas City |
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