| DR. MARK G. BIGDER INC. | — | BC1284772 | 2021-01-19 | Active | |
| DR. MARK G. HYSLOP INC. | — | BC0458958 | 1993-11-26 | Inactive | |
| DR. MARK GATHA INC. | — | C1042982 | 2015-07-16 | Active | |
| DR. MARK GATHA INC. | — | BC0977450 | 2013-08-09 | Inactive | |
| DR. MARK GODLEY INC. | — | BC0525930 | 1996-08-27 | Active | |
| DR. MARK GREENSPOON PROFESSIONAL CORPORATION | — | BC1065822 | 2016-02-23 | Active | |
| DR. MARK GULKA, INC. | — | BC0741447 | 2005-11-25 | Inactive | |
| DR. MARK H. ATKINS INC. | — | BC0698599 | 2004-06-28 | Inactive | |
| DR. MARK HAMANISHI INC. | — | BC1271742 | 2020-10-27 | Active | |
| DR. MARK HARMON INC. | — | BC1132368 | 2017-08-31 | Inactive | |
| DR. MARK HIEBERT - VETERINARY SERVICES | — | FM0247241 | 1998-09-29 | Active | |
| DR. MARK HONCE INC. | — | BC0890222 | 2010-09-13 | Active | |
| DR. MARK HOPKINS INC. | — | BC0916858 | 2011-07-29 | Active | |
| DR. MARK HUANG INC. | — | BC0407749 | 1991-06-14 | Inactive | |
| DR. MARK HULL INC. | — | BC1201182 | 2019-03-14 | Active | |
| DR. MARK I. REICHMAN INC. | — | BC0479724 | 1994-09-06 | Active | |
| DR. MARK I. WANG DENTIST INC. | — | BC0796544 | 2007-07-09 | Active | |
| DR. MARK J. HICKMAN INC. | — | BC0459140 | 1993-11-29 | Active | |
| DR. MARK J. LEE INC. | — | BC0923545 | 2011-10-25 | Active | |
| DR. MARK J. SHEPHERD CHIROPRACTIC SERVICES INC. | — | BC0462769 | 1994-01-18 | Active | |
| DR. MARK JAMES PROFESSIONAL MEDICAL CORPORATION | — | BC1181846 | 2018-10-03 | Active | |
| DR. MARK K. FROBB M.D. INC. | — | BC0420578 | 1992-02-20 | Active | |
| DR. MARK K. NIGRO INC. | — | BC0466652 | 1994-02-18 | Active | |
| DR. MARK K. SUYAMA INC. | — | BC0375958 | 1989-11-08 | Inactive | |
| DR. MARK KEELEY INC. | — | BC0738334 | 2005-10-21 | Active | |
| DR. MARK KRAMAR INC. | — | BC0904019 | 2011-02-25 | Active | |
| DR. MARK L. SPITZ DENTAL CORP. | — | BC1158219 | 2018-03-26 | Active | |
| DR. MARK L. SPITZ, INC. | — | BC0500567 | 1995-07-12 | Inactive | |
| DR. MARK LANGER, OPTOMETRIC CORPORATION | — | BC0993126 | 2014-02-06 | Active | |
| DR. MARK LAUDERDALE CORPORATION | — | BC0620489 | 2001-01-11 | Inactive | |
| DR. MARK LAWRENCE, INC. | — | BC0317702 | 1986-11-20 | Active | |
| DR. MARK LAWRIE INC. | — | BC0434823 | 1992-10-28 | Active | |
| DR. MARK LAWSON INC. | — | BC1021026 | 2014-12-04 | Active | |
| DR. MARK LOLAND INC. | — | BC0611462 | 2000-07-27 | Active | |
| DR. MARK M. NORRIS INC. | — | BC0364527 | 1989-04-26 | Inactive | |
| DR. MARK MACKENZIE INC. | — | BC0882678 | 2010-06-03 | Active | |
| DR. MARK MADDEN INC. | — | BC1020263 | 2014-11-27 | Active | |
| DR. MARK MCCONKEY INC. | — | BC0965587 | 2013-03-20 | Active | |
| DR. MARK MCLAUGHLIN INC. | — | BC0609259 | 2000-06-19 | Active | |
| DR. MARK MCLEAN INC. | — | BC0953840 | 2012-10-29 | Active | |
| DR. MARK MEISTER INC. | — | BC0898363 | 2010-12-20 | Inactive | |
| DR. MARK MEISTER RADIOLOGY INC. | — | BC0906076 | 2011-03-21 | Active | |
| DR. MARK MONEO, OPTOMETRIC CORPORATION | — | BC0419039 | 1992-01-27 | Active | |
| DR. MARK MORRIS INC. | — | BC1011109 | 2014-08-18 | Active | |
| DR. MARK O'NEILL INC. | — | BC0381566 | 1990-02-07 | Inactive | |
| DR. MARK O. TURNER INC. | — | BC0575920 | 1998-12-01 | Active | |
| DR. MARK OLESEN INC. | — | BC0551611 | 1997-10-06 | Active | |
| DR. MARK P. RILEY INC. | — | BC1022842 | 2014-12-22 | Active | |
| DR. MARK P. SUNDERLAND INC. | — | BC0404070 | 1991-04-12 | Inactive | |
| DR. MARK PAQUETTE OPTOMETRIC CORPORATION | — | BC1050205 | 2015-09-25 | Active | |
| DR. MARK PARHAR INC. | — | BC0947877 | 2012-08-14 | Active | |
| DR. MARK PEARCE AND DR. WEN QI TAN INC. | — | BC1245479 | 2020-03-25 | Active | |
| DR. MARK PHORD-TOY INC. | — | BC0796337 | 2007-07-06 | Active | |
| DR. MARK PRII CHIROPRACTIC INC. | — | C0724109 | 2005-05-10 | Active | |
| DR. MARK RIGBY INC. | — | BC0701022 | 2004-07-30 | Active | |
| DR. MARK ROCHE INC. | — | BC0463838 | 1994-02-01 | Inactive | |
| DR. MARK ROCHE MEDICAL PROFESSIONAL CORPORATION | — | BC1299910 | 2021-04-14 | Active | |
| DR. MARK ROSENGARTEN INC. | — | BC0504678 | 1995-09-21 | Active | |
| DR. MARK ROWSELL, OPTOMETRIC CORPORATION | — | BC1109964 | 2017-03-06 | Inactive | |
| DR. MARK S. CAREY INC. | — | BC0850362 | 2009-04-23 | Active | |
| DR. MARK SAMRA, OPTOMETRIC CORPORATION | — | BC0553633 | 1997-11-04 | Active | |
| DR. MARK SCHWENCK INC. | — | BC0329701 | 1987-07-07 | Inactive | |
| DR. MARK SERFAS HOLDINGS INC. | — | BC0575405 | 1998-11-23 | Active | |
| DR. MARK SERFAS INC. | — | BC0559994 | 1998-02-20 | Active | |
| DR. MARK SEVIER INC. | — | BC0295631 | 1985-07-22 | Active | |
| DR. MARK SHERMAN INC. | — | BC0888847 | 2010-08-25 | Active | |
| DR. MARK SHEWFELT INC. | — | BC1502880 | 2024-09-20 | Active | |
| DR. MARK SORIAL, INC. | — | BC0571235 | 1998-09-03 | Active | |
| DR. MARK SPEAKMAN CHIROPRACTIC CORPORATION | — | BC0655521 | 2002-09-27 | Inactive | |
| DR. MARK SPOONER INC. | — | BC0424589 | 1992-04-24 | Inactive | |
| DR. MARK SPURR DENTAL CORP. | — | BC0925010 | 2011-11-11 | Active | |
| DR. MARK SUYAMA INC. | — | BC1051601 | 2015-10-08 | Active | |
| DR. MARK T. BLINKHORN INC. | — | BC0556540 | 1997-12-29 | Active | |
| DR. MARK TAPPER INC. | — | BC0669751 | 2003-05-16 | Inactive | |
| DR. MARK TEIN CORPORATION | — | BC1280856 | 2020-12-23 | Active | |
| DR. MARK THIESSEN LTD. | — | BC0489604 | 1995-01-31 | Active | |
| DR. MARK TREISSMAN INC. | — | BC0533730 | 1996-12-24 | Active | |
| DR. MARK TULUMELLO INC. | — | BC0995633 | 2014-03-05 | Active | |
| DR. MARK TUNBRIDGE & ASSOCIATES INC. | — | BC0672228 | 2003-06-24 | Inactive | |
| DR. MARK TYNDALL INC. | — | BC0710045 | 2004-12-01 | Inactive | |
| DR. MARK VOOGHT MEDICAL PROFESSIONAL CORP. | — | C1605249 | 2026-08-24 | Active | |
| DR. MARK W. CROSSMAN INC. | — | BC0851154 | 2009-05-04 | Active | |
| DR. MARK W. STEWART INC. | — | BC0302256 | 1985-12-23 | Inactive | |
| DR. MARK WANG INC. | — | BC0591352 | 1999-08-26 | Inactive | |
| DR. MARK WARWAS INC. | — | BC1259479 | 2020-07-30 | Active | |
| DR. MARK WENSLEY INC. | — | BC1057025 | 2015-12-01 | Inactive | |
| DR. MARK WHITELEY CO. | — | FM0876409 | 2022-04-05 | Active | |
| DR. MARK YUDIN INC. | — | BC0790148 | 2007-05-03 | Active | |
| DR. MARK Z. MATISHAK INC. | — | BC0510353 | 1995-12-19 | Active | |
| DR. MARKE PEDERSEN INC. | — | BC0578421 | 1999-01-18 | Inactive | |
| DR. MARKETA GOGELA-SPEHAR INC. | — | BC0863955 | 2009-10-16 | Active | |
| DR. MARKO NENADIC INC. | — | BC0399810 | 1991-01-10 | Inactive | |
| DR. MARKO YURKOVICH INC. | — | BC1199385 | 2019-03-01 | Active | |
| DR. MARKUS ANTON BACHLER INCORPORATED | — | BC0744568 | 2005-12-30 | Active | |
| DR. MARKUS GUMBMANN INC. | — | BC1296447 | 2021-03-26 | Active | |
| DR. MARKUS LOUIE DENTAL CORP. | — | BC1504978 | 2024-10-03 | Active | |
| DR. MARLA CONNOR INC. | — | BC0922887 | 2011-10-17 | Active | |
| DR. MARLEIGH EDWARDS INC. | — | BC1234014 | 2019-12-16 | Active | |
| DR. MARLENE W. SMITH INC. | — | BC0988906 | 2013-12-19 | Inactive | |
| DR. MARLENE WICKMAN INC. | — | BC0764122 | 2006-07-21 | Active | |
| DR. MARLIN MALIK SAMUELS INC. | — | BC1451102 | 2023-11-23 | Active | |
| DR. MARLON A. MOLDEZ INC. | — | BC1360481 | 2022-05-01 | Active | |
| DR. MARLON A. MOLDEZ INC. | — | BC1000837 | 2014-04-29 | Inactive | |
| DR. MARLON C. PETER INC. | — | BC0702296 | 2004-08-19 | Active | |
| DR. MARLOWE HASKINS INC. | — | BC0686539 | 2004-02-03 | Active | |
| DR. MARNI HEED INC. | — | BC0838432 | 2008-10-30 | Active | |
| DR. MARNIE R. PLANT INC. | — | BC0616205 | 2000-10-20 | Inactive | |
| DR. MARNIE SHKWAROK INC. | — | BC0398504 | 1990-12-19 | Active | |
| DR. MARSHA SANTERRE INC. | — | BC1476750 | 2024-04-18 | Active | |
| DR. MARSHALL RICHARDSON LTD. | — | BC0821246 | 2008-04-04 | Inactive | |
| DR. MARSHALL WILENSKY & ASSOCIATES INC. | — | BC0438815 | 1993-01-07 | Inactive | |
| DR. MARTA CZERNER INC. | — | BC1159893 | 2018-04-10 | Inactive | |
| DR. MARTA DEMUTH INC. | — | BC1050508 | 2015-09-29 | Inactive | |
| DR. MARTHA DIGIUSEPPE INC. | — | BC1438806 | 2023-09-12 | Active | |
| DR. MARTHA MACDONNELL PROFESSIONAL CORPORATION | — | C1002521 | 2014-05-16 | Inactive | |
| DR. MARTHA SPENCER INC. | — | BC1073556 | 2016-04-27 | Active | |
| DR. MARTHA TALBOT INC. | — | BC1534801 | 2025-04-08 | Active | |
| DR. MARTIN A. ILLING INC. | — | BC0960196 | 2013-01-16 | Inactive | |
| DR. MARTIN ANDREAE INC. | — | BC1006857 | 2014-06-30 | Active | |
| DR. MARTIN ARRIGAN INC. | — | BC1204688 | 2019-04-10 | Inactive | |
| DR. MARTIN BRAUN, INC. | — | BC0348726 | 1988-07-19 | Active | |
| DR. MARTIN C. K. HOSKING INC. | — | BC0617878 | 2000-11-22 | Active | |
| DR. MARTIN C. SCHERRER INC. | — | BC1111881 | 2017-03-20 | Active | |
| DR. MARTIN COLE, PODIATRIC CORPORATION | — | BC0312017 | 1986-07-15 | Inactive | |
| DR. MARTIN COTE BECK INC. | — | BC0831231 | 2008-07-28 | Inactive | |
| DR. MARTIN DOAN INC. | — | BC1172098 | 2018-07-16 | Active | |
| DR. MARTIN DODDS INC. | — | BC0660116 | 2002-12-13 | Active | |
| DR. MARTIN DROBIS INC. | — | BC0478233 | 1994-08-11 | Inactive | |
| DR. MARTIN FISHMAN INC. | — | BC0412612 | 1991-09-18 | Inactive | |
| DR. MARTIN GARIEPY INC. | — | BC1544259 | 2025-06-16 | Active | |
| DR. MARTIN GLEAVE, INC. | — | BC0463180 | 1994-01-24 | Active | |
| DR. MARTIN HORN INC. | — | BC1592608 | 2026-05-28 | Active | |
| DR. MARTIN KRESTOW INC. | — | BC0707229 | 2004-10-27 | Active | |
| DR. MARTIN KUCERAK MEDICAL SERVICES INC. | — | BC0175010 | 1978-05-10 | Inactive | |
| DR. MARTIN L. LACK INC. | — | BC0339248 | 1988-01-19 | Inactive | |
| DR. MARTIN LAMONT INC. | — | BC0425661 | 1992-05-13 | Inactive | |
| DR. MARTIN LEHR INC. | — | BC0862455 | 2009-09-29 | Active | |
| DR. MARTIN LIPINSKI INC. | — | BC1285367 | 2021-01-22 | Active | |
| DR. MARTIN LOVERIN INC. | — | BC0772548 | 2006-10-24 | Active | |
| DR. MARTIN P. GRYPMA INC. | — | BC0812444 | 2007-12-28 | Active | |
| DR. MARTIN PHILLIPS-HING PROFESSIONAL PSYCHOLOGY CORPORATION | — | BC0960400 | 2013-01-18 | Active | |
| DR. MARTIN R. AIDELBAUM INC. | — | BC0928769 | 2012-01-01 | Active | |
| DR. MARTIN R. AIDELBAUM INC. | — | BC0398537 | 1990-12-20 | Inactive | |
| DR. MARTIN RAHN INC. | — | BC0470964 | 1994-04-15 | Inactive | |
| DR. MARTIN ROBITAILLE INC. | — | BC1155490 | 2018-03-06 | Active | |
| DR. MARTIN ROOS INC. | — | BC0893634 | 2010-10-25 | Active | |
| DR. MARTIN SOMMERFELD CORPORATION | — | BC0302391 | 1985-12-30 | Inactive | |
| DR. MARTIN VAN ZYL INC. | — | BC1385175 | 2022-11-02 | Active | |
| DR. MARTIN WLODARSKI INC. | — | BC1104760 | 2017-01-23 | Active | |
| DR. MARTINA MUDRI PROFESSIONAL CORPORATION | — | BC1431762 | 2023-08-04 | Active | |
| DR. MARTINA SMIT PSYCHIATRY INC. | — | BC0915090 | 2011-07-08 | Active | |
| DR. MARTINS ISERHIENRHIEN INC. | — | BC1014223 | 2014-09-22 | Inactive | |
| DR. MARTIRES, DR. OBACH & DR. LADRIDO INC. | — | BC1236370 | 2020-01-07 | Active | |
| DR. MARTY THOMPSON CHIROPRACTIC CORP. | — | BC0822418 | 2008-04-16 | Active | |
| DR. MARTYNA AND DR. WONG DENTAL INC. | — | BC1208253 | 2019-05-09 | Active | |
| DR. MARUF SADDIK INC. | — | BC1540585 | 2025-05-21 | Active | |
| DR. MARVIN BAILEY PROFESSIONAL CORPORATION | — | BC1304679 | 2021-05-11 | Active | |
| DR. MARVIN LEMKE INC. | — | BC0452668 | 1993-08-12 | Active | |
| DR. MARVIN MIN-YEN HSIAO INC. | — | BC1090372 | 2016-09-22 | Active | |
| DR. MARWA SALMAN INC. | — | BC1155211 | 2018-03-05 | Active | |
| DR. MARY ADEL SABER WASSEF INC. | — | BC1313159 | 2021-06-29 | Active | |
| DR. MARY AMINA ANITA EL GENDI INC. | — | BC1250692 | 2020-05-20 | Active | |
| DR. MARY B. CONNOLLY INC. | — | BC0547784 | 1997-07-30 | Active | |
| DR. MARY C. BERKMORTEL INC. | — | BC0746038 | 2006-01-17 | Active | |
| DR. MARY C. CONNOLLY INC. | — | BC0479497 | 1994-09-01 | Inactive | |
| DR. MARY CONLEY LTD. | — | BC0465554 | 1994-02-15 | Active | |
| DR. MARY D. STEPHENSON INC. | — | BC0434653 | 1992-10-27 | Inactive | |
| DR. MARY ELRICK INC. | — | BC1388900 | 2022-11-28 | Active | |
| DR. MARY GLEN INC. | — | BC1585264 | 2026-04-07 | Active | |
| DR. MARY GRAHAM, INC. | — | BC0618848 | 2000-12-07 | Inactive | |
| DR. MARY J. BORG INC. | — | BC1056788 | 2015-11-27 | Active | |
| DR. MARY J.T. KALDAS INC. | — | BC1601871 | 2026-07-29 | Active | |
| DR. MARY KAGAN INC. | — | BC0575301 | 1998-11-20 | Inactive | |
| DR. MARY LOU RIEDERER OPTOMETRIC CORPORATION | — | BC0392888 | 1990-08-31 | Inactive | |
| DR. MARY LOUISE CAMPBELL INC. | — | BC0466604 | 1994-02-18 | Inactive | |
| DR. MARY M. BENNETT, INC. | — | BC0675580 | 2003-08-21 | Active | |
| DR. MARY MALEBRANCHE INC. | — | C1384268 | 2022-10-26 | Active | |
| DR. MARY MASOTTI INC. | — | BC1209293 | 2019-05-17 | Active | |
| DR. MARY MCLAY DENTIST INC. | — | BC1477370 | 2024-04-23 | Active | |
| DR. MARY ROBERTSON INC. | — | BC0439718 | 1993-01-25 | Active | |
| DR. MARY WINDER INC. | — | BC0559423 | 1998-02-12 | Inactive | |
| DR. MARYA AMAN INC. | — | BC1549377 | 2025-07-22 | Active | |
| DR. MARYAM AGHYANI INC. | — | BC1368173 | 2022-06-20 | Active | |
| DR. MARYAM AHMADI INC. | — | BC1335303 | 2021-11-28 | Active | |
| DR. MARYAM AROICHANE INC. | — | BC0806237 | 2007-10-22 | Active | |
| DR. MARYAM ASHOUR INC. | — | BC1435330 | 2023-08-24 | Active | |
| DR. MARYAM ASKARPOOR, OPTOMETRIC CORPORATION | — | BC1324990 | 2021-09-20 | Active | |
| DR. MARYAM ESLAMI INC. | — | BC1446063 | 2023-10-24 | Active | |
| DR. MARYAM KAZEMI INC. | — | BC0675897 | 2003-08-26 | Active | |
| DR. MARYAM MAHANIAN ACUPUNCTURE & TCM CLINIC INC. | — | BC0827087 | 2008-06-06 | Active | |
| DR. MARYAM VOJDANI INC. | — | BC0811415 | 2007-12-17 | Active | |
| DR. MARYAM ZEINEDDIN INC. | — | BC0845568 | 2009-02-12 | Active | |
| DR. MARZIEH SHAFIE INC. | — | BC0842644 | 2008-12-30 | Active | |
| DR. MARZIEH SOROOSHZADEH DENTAL INC. | — | BC1600806 | 2026-07-22 | Active | |
| DR. MASHA A. MAXIM INC. | — | BC0752879 | 2006-03-27 | Inactive | |
| DR. MASHA MAXIM (2010) INC. | — | BC0895717 | 2010-11-18 | Inactive | |
| DR. MASHAEL MAWJI, ND | — | FM0805367 | 2020-05-05 | Active | |
| DR. MASHAEL MAWJI, ND INC. | — | BC1346936 | 2022-02-08 | Active | |
| DR. MASK-IT ENTERPRISES INC. | — | BC0634296 | 2001-09-21 | Inactive | |
| DR. MASOUD HAGHI INC. | — | BC0655154 | 2002-09-23 | Active | |