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| DR. D.P.K. CHEUNG CORPORATION | — | BC0360900 | 1989-03-02 | Inactive | |
| DR. D.R. GREEN DENTAL CORPORATION | — | BC1271172 | 2020-10-22 | Active | |
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| DR. D.T. RESCHKE MEDICAL PRACTICE LTD. | — | BC0513691 | 1996-02-14 | Inactive | |
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| DR. D.W. BOORMAN, M.D. LTD. | — | BC0296619 | 1985-08-16 | Inactive | |
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| DR. D.W. CRUICKSHANK INC. | — | C1156051 | 2018-03-09 | Active | |
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| DR. DA-ELENE VAN DER MERWE MEDICAL CORP. | — | C1327526 | 2021-10-07 | Active | |
| DR. DADJOU DENTAL CORP. | — | BC1509831 | 2024-11-02 | Active | |
| DR. DAE KEUN KIM INC. | — | BC1381682 | 2022-10-06 | Active | |
| DR. DAE-WON (DAVID) LEE INC. | — | BC0956630 | 2012-12-03 | Active | |
| DR. DAFFYD COOK CORP. | — | BC0996058 | 2014-03-10 | Active | |
| DR. DAHIA DENTAL CORP. | — | BC0975957 | 2013-07-22 | Active | |
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| DR. DAISY C.W. TAO, OPTOMETRIC CORPORATION | — | BC0955988 | 2012-11-26 | Active | |
| DR. DAISY DULAY, MD, FRCPC INC. | — | BC0898747 | 2010-12-22 | Active | |
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| DR. DAL NAGRA INC. | — | BC0793150 | 2007-06-04 | Active | |
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| DR. DALBHIR JANGRA INC. | — | BC0774197 | 2006-11-09 | Active | |
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| DR. DALE A. BARCKET, INC. | — | BC0333547 | 1987-09-21 | Inactive | |
| DR. DALE CHRISTOPHE INC. | — | BC0431656 | 1992-09-02 | Inactive | |
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| DR. DALE DERGOUSOFF, OPTOMETRIC CORPORATION | — | BC0715349 | 2005-02-01 | Inactive | |
| DR. DALE DHILLON PROFESSIONAL CORPORATION | — | BC1071382 | 2016-04-08 | Active | |
| DR. DALE I. TANAKA CHIROPRACTIC INC. | — | BC0399029 | 1990-12-31 | Active | |
| DR. DALE K. HENRY INC. | — | BC0562353 | 1998-04-02 | Inactive | |
| DR. DALE LIDDICOAT, OPTOMETRIC CORPORATION | — | BC0817624 | 2008-02-26 | Inactive | |
| DR. DALE MACHINE INC. | — | BC0806472 | 2007-10-24 | Active | |
| DR. DALE R. LOEWEN LTD. | — | BC0547290 | 1997-07-23 | Inactive | |
| DR. DALE TAYLOR INC. | — | BC1023997 | 2015-01-06 | Inactive | |
| DR. DALEN QUINTON INC. | — | BC0826588 | 2008-05-30 | Active | |
| DR. DALI LI INC. | — | BC1301342 | 2021-04-21 | Active | |
| DR. DALIA TAHER ORTHODONTIC DENTAL CORP. | — | BC1571706 | 2026-01-08 | Active | |
| DR. DALIP S. SANDHU INC. | — | BC0398798 | 1990-12-24 | Active | |
| DR. DALJEET CHAHAL INC. | — | BC1385590 | 2022-11-04 | Active | |
| DR. DALJEET MAHAL INC. | — | BC1436794 | 2023-09-01 | Active | |
| DR. DALJIT CLAIRE INC. | — | BC0477118 | 1994-07-20 | Active | |
| DR. DALJIT S. VIRK INC. | — | BC0397282 | 1990-11-30 | Inactive | |
| DR. DALJIT S. VIRK INC. | — | BC0620082 | 2000-12-31 | Active | |
| DR. DALJIT SINGH THIND MEDICAL CORPORATION | — | BC1231715 | 2019-11-28 | Active | |
| DR. DALTON DEAN SELF PROFESSIONAL CORPORATION | — | C1302616 | 2021-04-28 | Active | |
| DR. DAMANJIT JOHAL, OPTOMETRIC CORPORATION | — | BC0979350 | 2013-08-31 | Active | |
| DR. DAMANJIT JOHAL, OPTOMETRIC CORPORATION | — | BC0971117 | 2013-05-28 | Inactive | |
| DR. DAMIAN MALINOWSKI DENTAL CORP. | — | BC1471827 | 2024-03-20 | Active | |
| DR. DAMIAN MALINOWSKI INC. | — | BC0752280 | 2006-03-21 | Active | |
| DR. DAMIAN WHITE INC. | — | BC0619177 | 2000-12-13 | Active | |
| DR. DAMIEN D. MAHARAJ PROFESSIONAL CORPORATION | — | BC1069254 | 2016-03-21 | Active | |
| DR. DAMINI MALHOTRA, R. PSYCH. INC. | — | BC1339798 | 2021-12-23 | Active | |
| DR. DAMON LI AND DR. SU FEI YUE INC. | — | BC1343774 | 2022-01-20 | Active | |
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| DR. DAN CHAN INC. | — | BC0296623 | 1985-08-16 | Inactive | |
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| DR. DAN DERKSEN OPTOMETRIC CORPORATION | — | BC0532459 | 1996-12-04 | Inactive | |
| DR. DAN ERICKSON, CHIROPRACTIC CORPORATION | — | BC0393445 | 1990-09-12 | Active | |
| DR. DAN KALLA INC. | — | BC0524430 | 1996-07-30 | Active | |
| DR. DAN KOBI INC. | — | BC0577163 | 1998-12-23 | Inactive | |
| DR. DAN KOBI INC. | — | BC0727005 | 2005-06-10 | Active | |
| DR. DAN M. KINGSBURY INC. | — | BC0474532 | 1994-06-08 | Inactive | |
| DR. DAN R. VARGAS INC. | — | BC0408345 | 1991-06-26 | Inactive | |
| DR. DAN SIEFFERT INC. | — | BC0731099 | 2005-07-28 | Inactive | |
| DR. DAN STASIUK, OPTOMETRIC CORPORATION | — | BC1554113 | 2025-08-25 | Active | |
| DR. DAN SUTTILL, DC | — | FM1063354 | 2024-12-27 | Active | |
| DR. DAN WHITE PODIATRIC CORPORATION | — | BC0398932 | 1990-12-28 | Inactive | |
| DR. DAN YANG WANG, OPTOMETRIC CORPORATION | — | BC1199337 | 2019-02-28 | Active | |
| DR. DAN-LINH HA INC. | — | BC1011258 | 2014-08-19 | Active | |
| DR. DANA ALUMBAUGH, PODIATRIC CORPORATION INC. | — | BC0965321 | 2013-03-18 | Active | |
| DR. DANA BEHAN INC. | — | BC0467426 | 1994-02-25 | Active | |
| DR. DANA BLOOMQUIST INC. | — | BC1176571 | 2018-08-20 | Active | |
| DR. DANA BURRY INC. | — | BC0930070 | 2012-01-13 | Active | |
| DR. DANA CHLYSTA INC. | — | BC1015742 | 2014-10-07 | Inactive | |
| DR. DANA EYAD MOHAMMAD INC. | — | BC1564195 | 2025-11-21 | Active | |
| DR. DANA HERBERTS INC. | — | BC1264935 | 2020-09-10 | Active | |
| DR. DANA HUBLER PROFESSIONAL CORPORATION | — | C0789203 | 2007-04-24 | Active | |
| DR. DANA LEE INC. | — | BC1093633 | 2016-10-19 | Active | |
| DR. DANA T. HERBERTS INC. | — | BC0401047 | 1991-02-11 | Inactive | |
| DR. DANA VINTI INC. | — | BC0633105 | 2001-08-27 | Active | |
| DR. DANA WONG MEDICAL CORPORATION | — | BC1093990 | 2016-10-21 | Active | |
| DR. DANAE TRACEY MEDICAL PROFESSIONAL CORPORATION | — | BC1493841 | 2024-07-25 | Active | |
| DR. DANAH ABO ALSAMH MEDICAL CORPORATION | — | BC1500192 | 2024-09-04 | Active | |
| DR. DANE EDWARDS INC. | — | BC1328385 | 2021-10-14 | Active | |
| DR. DANELLE CHAN DENTAL INC. | — | BC1404606 | 2023-03-09 | Active | |
| DR. DANIAL DEHESHI INC. | — | BC0887313 | 2010-08-03 | Inactive | |