| DR. JOHANNES OLIVIER MEDICAL CORP. | — | C0722551 | 2005-04-21 | Active | |
| DR. JOHANNES R. YLIRUUSI INC. | — | BC1225141 | 2019-09-30 | Active | |
| DR. JOHANNES RAATH INC. | — | BC1046387 | 2015-08-19 | Active | |
| DR. JOHANNES SCHNEIDER INC. | — | BC0579943 | 1999-02-11 | Active | |
| DR. JOHANNES VAN DYK INC. | — | BC0910701 | 2011-05-16 | Inactive | |
| DR. JOHN A. BARAKSO INC. | — | BC0207899 | 1980-04-09 | Inactive | |
| DR. JOHN A. COBURN INC. | — | BC0726627 | 2005-06-07 | Inactive | |
| DR. JOHN A. COBURN INC. | — | BC1518052 | 2025-01-01 | Active | |
| DR. JOHN A. DUFTON INC. | — | BC0956662 | 2012-12-04 | Active | |
| DR. JOHN A. DUNCAN INC. | — | BC0943166 | 2012-06-14 | Active | |
| DR. JOHN A. FULLER INC. | — | BC1047000 | 2015-08-25 | Active | |
| DR. JOHN A. FULLER INC. | — | BC0333626 | 1987-09-22 | Inactive | |
| DR. JOHN A. HAMILTON INC. | — | BC0708801 | 2004-11-17 | Active | |
| DR. JOHN A. HORNBY INC. | — | BC0466234 | 1994-02-18 | Inactive | |
| DR. JOHN A. MACCARTHY INC. | — | BC0304700 | 1986-02-17 | Inactive | |
| DR. JOHN A. MILLER INC. | — | BC0764655 | 2006-07-27 | Inactive | |
| DR. JOHN A. PACEY LTD. | — | BC0298144 | 1985-09-24 | Inactive | |
| DR. JOHN A. SHACKLOCK INC. | — | BC0526794 | 1996-09-10 | Active | |
| DR. JOHN A. SMYTH INC. | — | BC0833608 | 2008-08-27 | Inactive | |
| DR. JOHN A. SOLES INC. | — | BC0543154 | 1997-05-21 | Active | |
| DR. JOHN A. STAPLES MEDICAL CORPORATION | — | BC1081768 | 2016-07-05 | Active | |
| DR. JOHN A. TAYLOR INC. | — | BC1379610 | 2022-09-21 | Active | |
| DR. JOHN A. WARNER INC. | — | BC0441928 | 1993-03-01 | Active | |
| DR. JOHN A. WOYAT INC. | — | BC0399023 | 1990-12-31 | Inactive | |
| DR. JOHN ADAIR AND DR. SHARON LEES INC. | — | BC0461276 | 1993-12-31 | Active | |
| DR. JOHN ANTHONY TERCIER INC. | — | BC0894262 | 2010-11-01 | Inactive | |
| DR. JOHN ANWAR MD INC. | — | BC1542589 | 2025-06-04 | Active | |
| DR. JOHN ASCAH INC. | — | BC0597620 | 1999-12-16 | Inactive | |
| DR. JOHN AZER INC. | — | BC1455170 | 2023-12-14 | Active | |
| DR. JOHN B. ANDERSON INC. | — | BC0465452 | 1994-02-14 | Inactive | |
| DR. JOHN B. BASTERFIELD LTD. | — | BC0659884 | 2002-12-10 | Inactive | |
| DR. JOHN B. MCGREGOR MEDICAL SERVICES CORP. | — | BC0335565 | 1987-10-30 | Inactive | |
| DR. JOHN B. MURRAY INC. | — | BC0476939 | 1994-07-18 | Inactive | |
| DR. JOHN BEREZOWSKYJ INC. | — | BC0644782 | 2002-03-28 | Inactive | |
| DR. JOHN BIDGOOD INC. | — | BC1009322 | 2014-07-29 | Inactive | |
| DR. JOHN BIDGOOD INC. | — | BC1168244 | 2018-06-14 | Inactive | |
| DR. JOHN BJORNSON INC. | — | BC0583561 | 1999-04-15 | Inactive | |
| DR. JOHN BLACK INC. | — | BC1486978 | 2024-06-17 | Active | |
| DR. JOHN BORUTA, CHIROPRACTIC SERVICES INC. | — | BC0579357 | 1999-02-01 | Active | |
| DR. JOHN BOWERING INC. | — | BC0458362 | 1993-11-18 | Active | |
| DR. JOHN BREEN INC. | — | BC1146271 | 2017-12-21 | Active | |
| DR. JOHN BRIDGE RADIOLOGIST INC. | — | BC0488551 | 1995-01-18 | Inactive | |
| DR. JOHN BYRON RAMSEY INC. | — | BC1356243 | 2022-04-01 | Active | |
| DR. JOHN C. CHOW INC. | — | BC0398226 | 1990-12-14 | Active | |
| DR. JOHN C. CLINE, INC. | — | BC0198307 | 1979-10-11 | Inactive | |
| DR. JOHN C. HOU INC. | — | BC0346175 | 1988-05-30 | Inactive | |
| DR. JOHN C. JANEK CHIROPRACTIC INC. | — | BC0896738 | 2010-12-01 | Inactive | |
| DR. JOHN C. L. SUN INC. | — | BC0637657 | 2001-11-22 | Active | |
| DR. JOHN C. LI INC. | — | BC0569499 | 1998-08-04 | Active | |
| DR. JOHN C. MAYSMITH INCORPORATED | — | BC0767156 | 2006-08-28 | Inactive | |
| DR. JOHN C. MCALPINE INC. | — | BC0760739 | 2006-06-15 | Active | |
| DR. JOHN C. MITCHELL CHIROPRACTIC CORPORATION | — | BC0382394 | 1990-02-20 | Inactive | |
| DR. JOHN C. RYAN INC. | — | BC0463470 | 1994-01-27 | Active | |
| DR. JOHN C.H. LAUDAN INC. | — | BC0408557 | 1991-06-28 | Inactive | |
| DR. JOHN CANT INC. | — | BC0466489 | 1994-02-18 | Active | |
| DR. JOHN CHIN INC. | — | BC1232328 | 2019-12-03 | Active | |
| DR. JOHN CHRISTENSEN, INC. | — | BC0404583 | 1991-04-22 | Inactive | |
| DR. JOHN CHUNG INC. | — | BC1005581 | 2014-06-17 | Inactive | |
| DR. JOHN COCHRANE INC. | — | BC0366259 | 1989-05-19 | Inactive | |
| DR. JOHN COLEBROOK INC. | — | BC1504839 | 2024-10-02 | Active | |
| DR. JOHN D. CONLEY INC. | — | BC0323166 | 1987-03-10 | Inactive | |
| DR. JOHN D. JANTZI, OPTOMETRIC CORPORATION | — | BC0398635 | 1990-12-21 | Inactive | |
| DR. JOHN D. KIM INC. | — | BC1134849 | 2017-09-21 | Active | |
| DR. JOHN D.S. REID INC. | — | BC0899276 | 2010-12-30 | Active | |
| DR. JOHN DALTON INC. | — | BC0608014 | 2000-05-30 | Inactive | |
| DR. JOHN DANG INCORPORATED | — | BC0868144 | 2009-12-07 | Active | |
| DR. JOHN DAVIS BOSDET, OPTOMETRIC CORPORATION | — | BC0913567 | 2011-06-21 | Inactive | |
| DR. JOHN DICKINSON INC. | — | BC0322689 | 1987-03-02 | Inactive | |
| DR. JOHN DOERING INC. | — | BC1407255 | 2023-03-24 | Active | |
| DR. JOHN DVORACK OPTOMETRIC CORPORATION | — | BC0717147 | 2005-02-22 | Active | |
| DR. JOHN E. ANTONSEN INC. | — | BC0547267 | 1997-07-23 | Active | |
| DR. JOHN E. BACHYNSKI INC. | — | BC0569305 | 1998-07-30 | Inactive | |
| DR. JOHN E. CROWTHER INC. | — | BC0542443 | 1997-05-07 | Active | |
| DR. JOHN E. GENTLES, OPTOMETRIC CORPORATION | — | BC0396593 | 1990-11-19 | Active | |
| DR. JOHN E. PANET NATUROPATHIC SERVICES INC. | — | BC0461324 | 1993-12-31 | Active | |
| DR. JOHN E. SPENCE INC. | — | BC0731768 | 2005-08-05 | Inactive | |
| DR. JOHN EGERTON HUNT INC. | — | BC0294698 | 1985-06-28 | Inactive | |
| DR. JOHN F. LING III CORP. | — | BC1591688 | 2026-05-22 | Active | |
| DR. JOHN F. NOLAN, INC. | — | BC0380543 | 1990-01-22 | Active | |
| DR. JOHN FARLEY INC. | — | BC0655167 | 2002-09-23 | Active | |
| DR. JOHN FITZGERALD INC. | — | BC1128911 | 2017-08-01 | Inactive | |
| DR. JOHN FITZPATRICK INC. | — | BC0411652 | 1991-08-30 | Inactive | |
| DR. JOHN G. CRAWFORD, MB CHB INC. | — | BC0808935 | 2007-11-21 | Inactive | |
| DR. JOHN G. EMERSON INC. | — | BC0303887 | 1986-01-30 | Inactive | |
| DR. JOHN G. FRASER INC. | — | BC0371925 | 1989-08-31 | Inactive | |
| DR. JOHN G. OFIESH INC. | — | BC0539993 | 1997-04-03 | Active | |
| DR. JOHN G. SILVER INC. | — | BC0507501 | 1995-10-31 | Inactive | |
| DR. JOHN GERGELY M.D., INC. | — | BC0755226 | 2006-04-19 | Active | |
| DR. JOHN GOULD INC. | — | BC0339762 | 1988-01-28 | Active | |
| DR. JOHN GREEN INC. | — | BC0489104 | 1995-01-25 | Inactive | |
| DR. JOHN GRIFFIOEN INC. | — | BC0614223 | 2000-09-15 | Active | |
| DR. JOHN H. BOYD INC. | — | BC0862143 | 2009-09-25 | Active | |
| DR. JOHN H. DICKINSON INC. | — | BC1339981 | 2021-12-24 | Active | |
| DR. JOHN H. DICKSON INC. | — | BC0334146 | 1987-10-01 | Inactive | |
| DR. JOHN H. DUNCAN INC. | — | BC0913672 | 2011-06-22 | Inactive | |
| DR. JOHN H. GILLIES INC. | — | BC0329117 | 1987-06-24 | Inactive | |
| DR. JOHN H. HAY INC. | — | BC0614411 | 2000-09-19 | Inactive | |
| DR. JOHN H. KO INC. | — | BC0485205 | 1994-11-30 | Inactive | |
| DR. JOHN H. W. OLIVER INC. | — | BC1217781 | 2019-08-01 | Active | |
| DR. JOHN H. W. OLIVER INC. | — | BC0423543 | 1992-04-06 | Inactive | |
| DR. JOHN HOURIGAN INC. | — | BC0945101 | 2012-07-06 | Active | |
| DR. JOHN HSIAO, OPTOMETRIC CORPORATION | — | BC0613344 | 2000-08-31 | Inactive | |
| DR. JOHN HU INC. | — | BC0892832 | 2010-10-14 | Active | |
| DR. JOHN HWANG PROFESSIONAL CORPORATION | — | C0907184 | 2011-04-01 | Active | |
| DR. JOHN I. C. LIN, M.D., INC. | — | BC0400585 | 1991-01-31 | Active | |
| DR. JOHN I. CHRISTENSEN INC. | — | BC1156215 | 2018-03-12 | Active | |
| DR. JOHN J. ADRIAN, INC. | — | BC0438280 | 1992-12-30 | Inactive | |
| DR. JOHN J. CARPENDALE INC. | — | BC0629298 | 2001-06-13 | Inactive | |
| DR. JOHN J. GRABHER INC. | — | BC0493531 | 1995-03-27 | Active | |
| DR. JOHN J. KWAK INC. | — | BC0658265 | 2002-11-08 | Active | |
| DR. JOHN J. L. CROSBY INC. | — | BC0416945 | 1991-12-11 | Inactive | |
| DR. JOHN JOFFE INC. | — | C0567908 | 1998-07-09 | Active | |
| DR. JOHN JUE INC. | — | BC0301428 | 1985-12-06 | Active | |
| DR. JOHN K. GAYFER LTD. | — | BC0583201 | 1999-04-12 | Inactive | |
| DR. JOHN K. REID MEDICAL CORP. | — | C1011242 | 2014-08-19 | Active | |
| DR. JOHN K.F. CHAN INC. | — | BC0303298 | 1986-01-20 | Active | |
| DR. JOHN KENNETH MCGAW DENTAL CORP. | — | BC1352075 | 2022-03-09 | Active | |
| DR. JOHN KESTLE INC. | — | BC0977660 | 2013-08-13 | Inactive | |
| DR. JOHN KESTLE INC. | — | BC0512571 | 1996-01-26 | Inactive | |
| DR. JOHN KEYES (PARKSVILLE) DENTAL INC. | — | BC1492417 | 2024-07-16 | Active | |
| DR. JOHN KEYES INC. | — | BC1029536 | 2015-03-05 | Inactive | |
| DR. JOHN KEYES INC. | — | BC1032248 | 2015-04-01 | Active | |
| DR. JOHN KILLICK INC. | — | BC0398445 | 1990-12-18 | Active | |
| DR. JOHN KIM INC. | — | BC1200613 | 2019-03-11 | Active | |
| DR. JOHN KOO INC. | — | BC1569869 | 2025-12-24 | Active | |
| DR. JOHN KRELL INC. | — | BC0465714 | 1994-02-16 | Inactive | |
| DR. JOHN L. BJORNSON INC. | — | BC0520921 | 1996-05-29 | Inactive | |
| DR. JOHN L. DIGGLE INC. | — | BC0759941 | 2006-06-07 | Active | |
| DR. JOHN L. NIMMO INC. | — | BC0428247 | 1992-06-30 | Inactive | |
| DR. JOHN L. PEACHELL INC. | — | BC0699952 | 2004-07-16 | Inactive | |
| DR. JOHN LAI INC. | — | BC0660194 | 2002-12-16 | Active | |
| DR. JOHN LAI MEDICAL SERVICES INC. | — | BC0660198 | 2002-12-16 | Inactive | |
| DR. JOHN LEBRUN INC. | — | BC0903923 | 2011-02-25 | Active | |
| DR. JOHN LEE INC. | — | BC0373374 | 1989-09-28 | Inactive | |
| DR. JOHN LEHUQUET PROFESSIONAL CORPORATION | — | BC0877827 | 2010-04-06 | Inactive | |
| DR. JOHN LOH CHIROPRACTIC CORPORATION | — | BC0397869 | 1990-12-11 | Inactive | |
| DR. JOHN M. DAY INC. | — | BC0191517 | 1979-05-24 | Inactive | |
| DR. JOHN M. FOX INC. | — | BC0399054 | 1990-12-31 | Inactive | |
| DR. JOHN M. HUNTER INC. | — | BC0466147 | 1994-02-17 | Active | |
| DR. JOHN M. SO INC. | — | BC0768901 | 2006-09-14 | Active | |
| DR. JOHN M.M. TURNER LTD. | — | BC0310341 | 1986-06-09 | Inactive | |
| DR. JOHN MAGUIRE INC. | — | BC0680830 | 2003-11-07 | Active | |
| DR. JOHN MAH INC. | — | BC0796965 | 2007-07-12 | Active | |
| DR. JOHN MANN INC. | — | BC0466047 | 1994-02-17 | Inactive | |
| DR. JOHN MARK STOCKBURGER INC. | — | BC0914980 | 2011-07-08 | Active | |
| DR. JOHN MCDOWELL INC. | — | BC0438270 | 1992-12-30 | Inactive | |
| DR. JOHN MCINTOSH DENTAL CORPORATION | — | BC0798029 | 2007-07-25 | Active | |
| DR. JOHN MCINTOSH INC. | — | BC0476406 | 1994-07-11 | Inactive | |
| DR. JOHN MCMANAMAN INC. | — | BC0464057 | 1994-02-03 | Inactive | |
| DR. JOHN MCMORRAN INC. | — | BC0376756 | 1989-11-22 | Inactive | |
| DR. JOHN MILNE CHIROPRACTIC INC. | — | BC0393729 | 1990-09-18 | Inactive | |
| DR. JOHN MONTAGUE INC. | — | BC0487066 | 1994-12-30 | Active | |
| DR. JOHN MORCH INCORPORATED | — | BC0423339 | 1992-04-02 | Inactive | |
| DR. JOHN MORE INC. | — | BC0398088 | 1990-12-13 | Inactive | |
| DR. JOHN MOSCO DENTAL CORP. | — | BC1160807 | 2018-04-17 | Inactive | |
| DR. JOHN N. GLOAG, INC. | — | BC0294787 | 1985-07-02 | Inactive | |
| DR. JOHN N. RUSSELL INC. | — | BC0551803 | 1997-10-08 | Active | |
| DR. JOHN NOBLE CORPORATION | — | BC0399656 | 1991-01-07 | Inactive | |
| DR. JOHN NOBLE MEDICAL SERVICES INC. | — | BC0815153 | 2008-01-30 | Inactive | |
| DR. JOHN O. TANCOCK CHIROPRACTIC CORPORATION | — | BC0381129 | 1990-02-01 | Active | |
| DR. JOHN OLESEN INC. | — | BC0360797 | 1989-03-01 | Inactive | |
| DR. JOHN P. DVORACK, OPTOMETRIC CORPORATION | — | BC0483974 | 1994-11-09 | Inactive | |
| DR. JOHN P. LEMAITRE INC. | — | BC0919841 | 2011-09-08 | Active | |
| DR. JOHN P. PEREVERZOFF CHIROPRACTIC CORPORATION | — | BC0672308 | 2003-06-25 | Active | |
| DR. JOHN P. STAMP PROFESSIONAL CORPORATION | — | C1409457 | 2023-04-05 | Active | |
| DR. JOHN PAPPEL INC. | — | BC1033247 | 2015-04-13 | Inactive | |
| DR. JOHN PENHALL INC. | — | BC0686445 | 2004-02-02 | Active | |
| DR. JOHN PENMAN ULC | — | BC0889305 | 2010-08-31 | Active | |
| DR. JOHN POON (2007), OPTOMETRIC CORPORATION | — | BC0798155 | 2007-07-26 | Active | |
| DR. JOHN POON, OPTOMETRIC CORPORATION | — | BC0656370 | 2002-10-16 | Inactive | |
| DR. JOHN Q. FRASER, INC. | — | BC0465773 | 1994-02-16 | Inactive | |
| DR. JOHN R. BIDGOOD INC. | — | BC0125064 | 1974-02-08 | Inactive | |
| DR. JOHN R. EVANS (1995) INC. | — | BC0495442 | 1995-04-27 | Inactive | |
| DR. JOHN R. EVANS INC. | — | BC0312102 | 1986-07-17 | Active | |
| DR. JOHN R. GORDON CHIROPRACTIC CORPORATION | — | BC0417608 | 1991-12-23 | Active | |
| DR. JOHN R. IMRIE INC. | — | BC0463454 | 1994-01-27 | Inactive | |
| DR. JOHN R. MAYO INC. | — | BC0677261 | 2003-09-18 | Active | |
| DR. JOHN R. ROGERS INC. | — | BC0428150 | 1992-06-29 | Inactive | |
| DR. JOHN R. VYSELAAR CARDIOLOGY INC. | — | BC0888790 | 2010-08-24 | Active | |
| DR. JOHN R. WATTERSON INC. | — | BC0633310 | 2001-08-30 | Active | |
| DR. JOHN R. WILSON INC. | — | BC0699942 | 2004-07-16 | Inactive | |
| DR. JOHN REES INC. | — | BC0581467 | 1999-03-12 | Inactive | |
| DR. JOHN REID INC. | — | BC0449685 | 1993-06-24 | Inactive | |
| DR. JOHN RONALD INC. | — | BC0742866 | 2005-12-12 | Active | |
| DR. JOHN S. ARTHUR FRCSC INC. | — | BC0461045 | 1993-12-24 | Active | |
| DR. JOHN S. CROWLEY LTD. | — | BC0305268 | 1986-02-26 | Active | |
| DR. JOHN S. DAVIS CORPORATION | — | BC0206831 | 1980-03-21 | Inactive | |
| DR. JOHN S. PATERSON PROFESSIONAL CORPORATION | — | C1526142 | 2025-02-11 | Active | |
| DR. JOHN S. ROBERTS INC. | — | BC0576797 | 1998-12-16 | Inactive | |
| DR. JOHN SAMPHIRE | — | FM0356324 | 2003-09-26 | Active | |
| DR. JOHN SHARP DENTAL INC. | — | BC1602150 | 2026-08-01 | Active | |
| DR. JOHN SHARP DENTAL INC. | — | BC1599700 | 2026-07-15 | Active | |
| DR. JOHN SHAW INC. | — | BC1089585 | 2016-09-14 | Active | |
| DR. JOHN SLANINA INC. | — | BC1159849 | 2018-04-09 | Inactive | |
| DR. JOHN SPENCER INC. | — | BC0414031 | 1991-10-17 | Inactive | |
| DR. JOHN ST. GERMAIN INC. | — | BC0299489 | 1985-10-24 | Inactive | |
| DR. JOHN STEYN INC. | — | BC1504805 | 2024-10-02 | Active | |
| DR. JOHN STRAUSS INC. | — | BC1315313 | 2021-07-14 | Active | |
| DR. JOHN STREET INC. | — | BC0809946 | 2007-11-30 | Active | |
| DR. JOHN STUART, JR., OPTOMETRIC CORPORATION | — | BC0777676 | 2006-12-19 | Inactive | |