Providers Maryann Massoud, AA to Nathan Mast
300 individual NPIs in the federal registry, part 13,784 of 24,427 of the A to Z by surname. Each row is the registry's record: the name and credential, the NPI, the primary specialty, the practice city and the year the NPI was issued. 134 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Maryann Massoud, AA | 1477948974 | Mental Health Counselor | Lakewood, WA | 2015 |
| Matthew Massoud, PHARMD | 1780382077 | Pharmacist | Everett, WA | 2023 |
| Maurice Massoud, RPH | 1275853822 | Pharmacist | Oceanside, CA | 2010 |
| Megan Massoud, MD | 1427678713 | Pediatrics Physician | San Antonio, TX | 2020 |
| Michael Massoud, DMD | 1679059521 | General Practice Dentistry | Gibbsboro, NJ | 2018 |
| Micheal Massoud, D.O. | 1194183012 | Internal Medicine Physician | Vacaville, CA | 2016 |
| Mira Massoud, M.D. | 1972987857 | Hospitalist Physician | Columbus, OH | 2015 |
| Mona Massoud | 1043538416 | Family Medicine Physician | Ann Arbor, MI | 2010 |
| Monica Massoud, DPT | 1851098420 | Physical Therapist | Bothell, WA | 2023 |
| Moustafa Massoud | 1427581321 | Hospitalist Physician | Birmingham, AL | 2017 |
| Nadien Massoud | 1710248133 | Pharmacist | Renton, WA | 2012 |
| Nicole Massoud, MSW | 1184472847 | Social Worker | Troy, MI | 2024 |
| Omar Massoud, MA, BCBA | 1043727381 | Behavior Analyst | San Leandro, CA | 2018 |
| Omar Massoud, MD | 1255382008 | Gastroenterology Physician | Birmingham, AL | 2006 |
| Paul Massoud, M.D. | 1831181882 | Internal Medicine Physician | Cincinnati, OH | 2005 |
| Rachael Massoud, DO | 1336536887 | Family Medicine Physician | Spokane Valley, WA | 2015 |
| Rama Massoud | 1346950151 | Pharmacist | Worcester, MA | 2022 |
| Ramez Massoud, MD | 1518594001 | Internal Medicine Physician | Kissimmee, FL | 2020 |
| Ramy Massoud | 1700586757 | Physician Assistant | Oakland Gdns, NY | 2023 |
| Raya Massoud, M.D. | 1831370063 | Neurology Physician | Frederick, MD | 2007 |
| Reda Massoud, RPH | 1811298979 | Pharmacist | Fairfax, VA | 2010 |
| Rianna Massoud | 1316677271 | Registered Nurse | Albany, NY | 2022 |
| Romeo Massoud, MD | 1194875237 | Surgical Critical Care Physician | Lawrenceville, GA | 2007 |
| Ryan Massoud, D.O. | 1023495512 | Family Medicine Physician | Spokane, WA | 2015 |
| Sandra Massoud | 1992697023 | Student in an Organized Health Care Education/Training Program | San Diego, CA | 2025 |
| Sonia Massoud | 1457730418 | Registered Nurse | Tucson, AZ | 2015 |
| Soulafa Massoud, LCSW | 1174657209 | Clinical Social Worker | Perris, CA | 2007 |
| Susan Massoud | 1003312364 | Pharmacist | Sterling Heights, MI | 2018 |
| Tarik Massoud, MD | 1124458542 | Diagnostic Neuroimaging (Radiology) Physician | Stanford, CA | 2013 |
| Vicky Massoud, M.D. | 1457788622 | Ophthalmology Physician | Boston, MA | 2013 |
| Yehia Massoud, DDS | 1396834297 | General Practice Dentistry | New York, NY | 2006 |
| Carol Massoud-Leroy | 1346519667 | Addiction (Substance Use Disorder) Counselor | Hartford, CT | 2011 |
| Christie Massoudi, DMD | 1952706582 | General Practice Dentistry | Jackson, MI | 2014 |
| Farzad Massoudi, M.D. | 1437144599 | Neurological Surgery Physician | Laguna Hills, CA | 2005 |
| Hossein Massoudi, MPT | 1326054651 | Physical Therapist | Albany, CA | 2006 |
| Katayoun Massoudi, DDS | 1831280288 | Dentist | Rancho Santa Margarita, CA | 2006 |
| Layla Massoudi, PHARM.D | 1093038291 | Pharmacist | Clifton Park, NY | 2010 |
| Nahal Massoudi | 1659949352 | Emergency Medicine Physician | Cedar Rapids, IA | 2021 |
| Natasha Massoudi, MD, MPH | 1356918437 | Psychiatry Physician | Providence, RI | 2021 |
| Navid Massoudi, MD | 1063450351 | Internal Medicine Physician | Canyon Country, CA | 2006 |
| Ramtin Massoudi, M.D. | 1538384797 | Family Medicine Physician | Encino, CA | 2007 |
| Rasa Massoudi, LMFT | 1407038102 | Marriage & Family Therapist | San Jose, CA | 2007 |
| Roya Massoudi | 1932055670 | School Psychologist | Richmond, CA | 2026 |
| Rustin Massoudi, MD | 1861836843 | Urology Physician | Stanford, CA | 2013 |
| Bobby Massoudian, MD | 1891734349 | Emergency Medicine Physician | Long Beach, CA | 2006 |
| Giti Massoudian, DDS. | 1912190992 | Dentist | San Pedro, CA | 2007 |
| Katrin Massoudian, M.D. | 1295734622 | Obstetrics & Gynecology Physician | Gardena, CA | 2005 |
| Mohammad Massoudian, M.D. | 1073679049 | Nuclear Radiology Physician | Torrance, CA | 2006 |
| Alan Massouh, MD | 1568922151 | Diagnostic Radiology Physician | Salt Lake City, UT | 2019 |
| Fawzi Massouh, MD | 1689516452 | Student in an Organized Health Care Education/Training Program | Staten Island, NY | 2026 |
| Hassan Massouh, M.D. | 1083723969 | Diagnostic Radiology Physician | Eden Prairie, MN | 2006 |
| Marwan Massouh, MD | 1508841669 | Hematology & Oncology Physician | Westlake, OH | 2005 |
| Rafik Massouh, MD | 1639274038 | Internal Medicine Physician | Chardon, OH | 2006 |
| Rawad Massouh, MD | 1275658650 | Emergency Medicine Physician | Memphis, TN | 2007 |
| Cyrus Massouleh, M.D. | 1750745998 | Emergency Medicine Physician | Birmingham, AL | 2016 |
| Hatef Massoumi, M.D. | 1619027364 | Gastroenterology Physician | Bronx, NY | 2007 |
| Jasmine Massoumi, NP | 1316437692 | Nurse Practitioner | Santa Clara, CA | 2018 |
| Jasmine Massoumi | 1396372934 | Pediatrics Physician | West Hollywood, CA | 2020 |
| Kamran Massoumi, M.D. | 1639172604 | Ophthalmology Physician | Elk City, OK | 2005 |
| Lila Massoumi, MD | 1033142476 | Psychiatry Physician | Bingham Farms, MI | 2006 |
| Maryam Massoumi, MD | 1194709022 | Internal Medicine Physician | Indianapolis, IN | 2005 |
| Mehran Massoumi, DDS | 1730204371 | Dentist | Cromwell, CT | 2007 |
| Roxanne Massoumi | 1477917789 | Student in an Organized Health Care Education/Training Program | Los Angeles, CA | 2016 |
| Safoura Massoumi, DDS PEDIATRIC DENTIS | 1497823561 | Pediatric Dentistry | Chula Vista, CA | 2006 |
| Sayeh Massoumi, DDS | 1972795953 | General Practice Dentistry | Bakersfield, CA | 2007 |
| Shayan Massoumi, MD | 1376482117 | Student in an Organized Health Care Education/Training Program | Madison, WI | 2026 |
| Fardad Massoumi Bavil, MD | 1013104546 | Family Medicine Physician | Munster, IN | 2007 |
| Sarabjit Massoun, DDS | 1386819464 | General Practice Dentistry | Fontana, CA | 2008 |
| Michele Massow, FNP | 1962629683 | Family Nurse Practitioner | Merrillville, IN | 2007 |
| Anna Massre | 1013598945 | Behavior Technician | Savannah, GA | 2021 |
| Enat Massre, MS, BCBA | 1275007783 | Behavior Analyst | Brooklyn, NY | 2019 |
| Issac Massre | 1205495561 | Clinical Social Worker | Brooklyn, NY | 2019 |
| Christina Massrey, MD | 1588291736 | Neurology with Special Qualifications in Child Neurology Physician | Houston, TX | 2020 |
| Abir Massri, DDS | 1750579686 | General Practice Dentistry | Ft Lauderdale, FL | 2007 |
| Hali Massri, PMHNP-BC | 1972099026 | Psychiatric/Mental Health Nurse Practitioner | Mansfield, MA | 2018 |
| Lulu Massri, O.D. | 1336403575 | Optometrist | Dearborn, MI | 2012 |
| Therese Massri, MD | 1285211904 | Hospitalist Physician | Laurinburg, NC | 2021 |
| Valerie Massrock | 1831432673 | Speech-Language Pathologist | Leonia, NJ | 2013 |
| Kamiar Massrour, M.D. | 1376791343 | Diagnostic Radiology Physician | Scottsdale, AZ | 2008 |
| Maziar Massrour, MD | 1306986773 | Pain Medicine (Anesthesiology) Physician | Chandler, AZ | 2007 |
| Dina Massry, M.D. | 1538121876 | Dermatology Physician | San Diego, CA | 2006 |
| Guy Massry, MD | 1134137441 | Ophthalmology Physician | Beverly Hills, CA | 2006 |
| Jacqueline Massry, LMSW | 1114650876 | School Social Worker | Eatontown, NJ | 2022 |
| Marwa Massry, C.R.N.A | 1023408168 | Certified Registered Nurse Anesthetist | Greensboro, NC | 2015 |
| Mindy Massry, PHARMD | 1093643017 | Geriatric Pharmacist | Moorestown, NJ | 2026 |
| Renee Massry, RN, BSN | 1316420268 | School Registered Nurse | Plymouth Meeting, PA | 2018 |
| Sally Massry, DO | 1891488813 | Psychiatry Physician | Grand Rapids, MI | 2023 |
| Shannan Massry, PA-C | 1639611726 | Physician Assistant | Brooklyn, NY | 2016 |
| Wafic Massry, M.D. | 1740377530 | Gynecologic Oncology Physician | Tacoma, WA | 2006 |
| Mary Masssmann, COTA | 1962000737 | Occupational Therapy Assistant | Ballwin, MO | 2020 |
| Diane Massucci, DNP, ANP-BC | 1972618791 | Adult Health Nurse Practitioner | Boca Raton, FL | 2006 |
| Ellen Massucci, MA CCC-SLP | 1154518413 | Speech-Language Pathologist | Farmington, CT | 2007 |
| Gabrielle Massucci, MS CF-SLP TSSLD | 1497366918 | Student in an Organized Health Care Education/Training Program | Port Jefferson Station, NY | 2020 |
| Jaime Massucci, MD | 1265560510 | Emergency Medicine Physician | Newark, DE | 2007 |
| James Massucci, MD | 1134190382 | Anesthesiology Physician | Pittsburgh, PA | 2006 |
| Jessica Massucci, M.S.CCC-SLP | 1992850028 | Speech-Language Pathologist | Calumet City, IL | 2007 |
| Joanne Massucci, M.D. | 1841204427 | Anesthesiology Physician | Williamsville, NY | 2006 |
| Kelly Massucci, M.ED. OTR/L | 1013976703 | Specialist | Farmington, CT | 2006 |
| Kristie Massucci | 1194283598 | Case Management Registered Nurse | Providence, RI | 2019 |
| Lisa Massucci | 1396278644 | Physical Therapist | Pittsburgh, PA | 2017 |
| Lisa Massucci, OTR/L | 1881088151 | Occupational Therapist | Bel Air, MD | 2015 |
| Maura Massucci, OD | 1710135454 | Vision Therapy Optometrist | Wexford, PA | 2008 |
| McKenzie Massucci | 1750948998 | Counselor | Youngstown, OH | 2019 |
| Michael Massucci | 1588452676 | Occupational Therapist | Worthington, OH | 2025 |
| Mona Massucci, PTA | 1710111737 | Physical Therapy Assistant | Warren, OH | 2009 |
| Nico Massucci, LPC | 1336088673 | Mental Health Counselor | Pittsburgh, PA | 2026 |
| Nicole Massucci, M.D. | 1518492834 | Anesthesiology Physician | Miami, FL | 2017 |
| Robert Massucci, PT,DPT | 1639891039 | Physical Therapist | Brooklyn, NY | 2022 |
| Rodelyn Massucci | 1598159527 | Physical Therapy Assistant | La Quinta, CA | 2015 |
| Steven Massucci, D.P.M | 1821523143 | Sports Medicine Podiatrist | Providence, RI | 2017 |
| Anne Massucco, MD | 1831292937 | Obstetrics & Gynecology Physician | Hartford, CT | 2006 |
| Johnnilynn Massucco, CRNA | 1821399494 | Certified Registered Nurse Anesthetist | West Palm Beach, FL | 2010 |
| Josie Massuch | 1891562401 | Behavior Technician | Farmington Hills, MI | 2023 |
| Fortunee Massuda, DPM | 1952307019 | Foot & Ankle Surgery Podiatrist | Chicago, IL | 2005 |
| Joel Massuda | 1780230342 | Physical Therapist | Menlo Park, CA | 2019 |
| Paola Massuda | 1134909591 | Nurse Practitioner | Hackensack, NJ | 2023 |
| Yacoub Massuda, M.D. | 1396821732 | Anesthesiology Physician | Valparaiso, IN | 2006 |
| Harold Massuet | 1407707938 | Behavior Technician | South Miami, FL | 2026 |
| Jessica Massuli, CADC | 1467771725 | Addiction (Substance Use Disorder) Counselor | Georgetown, DE | 2010 |
| Lauren Massulla | 1356210447 | Family Nurse Practitioner | Bridge City, LA | 2025 |
| Brandon Massullo, MA/LPCC | 1396936597 | Professional Counselor | Westlake, OH | 2007 |
| C Massullo, LCSW | 1396969242 | Clinical Social Worker | Chicago, IL | 2007 |
| James Massullo, MD | 1689793747 | Surgery Physician | Columbus, OH | 2007 |
| Mario Massullo, D.O. | 1043228158 | Cardiovascular Disease Physician | Kankakee, IL | 2006 |
| Mary-Helene Massullo, DO | 1649348343 | Surgery Physician | Fostoria, OH | 2006 |
| Pam Massullo, MS, PHARMD, PHD | 1093398000 | Pharmacist | Canfield, OH | 2021 |
| Rachael Massullo, LPN | 1255947354 | Pharmacy Technician | North Charleston, SC | 2020 |
| Ralph Massullo, MD | 1104810563 | MOHS-Micrographic Surgery Physician | Lecanto, FL | 2005 |
| Ricky Massullo, DDS | 1568675023 | General Practice Dentistry | Hamburg, PA | 2007 |
| Sandra Massullo-Schubert, M.D | 1023062700 | Internal Medicine Physician | Cambridge, OH | 2006 |
| Cameron Massumi, PT, DPT, CMPTPT | 1912548629 | Physical Therapist | Sterling, VA | 2019 |
| Mahsa Massumi, MD | 1568719805 | Hospitalist Physician | Houston, TX | 2012 |
| Mehran Massumi, M.D. | 1942521711 | Interventional Cardiology Physician | Houston, TX | 2010 |
| Mehrdad Massumi, MD | 1407894975 | Pain Medicine (Physical Medicine & Rehabilitation) Physician | Towson, MD | 2006 |
| Ashley Massung, AUD | 1144969122 | Audiologist | Atlanta, GA | 2022 |
| Busole Massunken, MD | 1831927250 | Behavioral Neurology & Neuropsychiatry Physician | Chicago, IL | 2024 |
| Carrie Massura, M.S. | 1336527415 | Psychologist | Forty Fort, PA | 2015 |
| Christina Massuros, PA | 1386305076 | Physician Assistant | Simi Valley, CA | 2022 |
| Angela Massutti, FNP-C | 1255883674 | Family Nurse Practitioner | Oglesby, IL | 2016 |
| Thomas Massutti, MD | 1114587904 | Diagnostic Radiology Physician | Saint Louis, MO | 2019 |
| Ann Massy | 1306294855 | Speech-Language Pathologist | Greenwood, IN | 2016 |
| Isabelle Massy, R.PH | 1952817892 | Pharmacist | Rochester, MN | 2017 |
| Melissa Massy | 1154629921 | Mental Health Counselor | Thornton, CO | 2011 |
| Mollie Massy, DO | 1770017501 | Family Medicine Physician | Sacramento, CA | 2017 |
| Sara Massy, MA, CCC-SLP | 1679349054 | Speech-Language Pathologist | Indianapolis, IN | 2023 |
| Gabriel Massyk, LMHC | 1790387272 | Mental Health Counselor | Catskill, NY | 2020 |
| Aaron Mast, MD | 1831159805 | Orthopaedic Surgery Physician | Bloomington, IN | 2006 |
| Adam Mast, PT, MPT, OCS | 1295786531 | Orthopedic Physical Therapist | Las Vegas, NV | 2006 |
| Adlai Mast, MD | 1730196643 | Pediatrics Physician | Nacogdoches, TX | 2006 |
| Alan Mast, RPH | 1295776854 | Pharmacist | Brooklyn, NY | 2006 |
| Alan Mast, DPM | 1578671665 | Podiatrist | Ludington, MI | 2006 |
| Alan Mast, MD | 1619991205 | Clinical Pathology/Laboratory Medicine Physician | Milwaukee, WI | 2006 |
| Alexander Mast, DO | 1679920755 | Pediatrics Physician | Saint Marys, OH | 2016 |
| Alexis Mast, DO | 1538910468 | Student in an Organized Health Care Education/Training Program | Charlotte, NC | 2024 |
| Allyson Mast, RD | 1588119739 | Registered Dietitian | Goshen, IN | 2016 |
| Alyssa Mast | 1710783287 | Behavior Analyst | Goshen, IN | 2025 |
| Alyssa Mast, BS | 1801783931 | Behavior Technician | Pooler, GA | 2025 |
| Amanda Mast, CNM | 1306724463 | Advanced Practice Midwife | Castle Rock, CO | 2025 |
| Amanda Mast, FNP-C | 1467299297 | Family Nurse Practitioner | Manistee, MI | 2024 |
| Amanda Mast | 1598155624 | Occupational Therapy Assistant | Blakeslee, PA | 2015 |
| Amberly Mast, RBT | 1639906134 | Behavior Technician | Commerce City, CO | 2024 |
| Andrea Mast, OTR | 1417287319 | Occupational Therapist | Aurora, CO | 2009 |
| Andrew Mast | 1215740345 | Behavior Technician | Elkhart, IN | 2025 |
| Ashley Mast, CNM, RN | 1548400567 | Advanced Practice Midwife | San Diego, CA | 2009 |
| Ashley Mast, PHARM. D | 1760762082 | Pharmacist | Lancaster, PA | 2011 |
| Ashley Mast, LMSW | 1831386812 | Clinical Social Worker | Fort Smith, AR | 2007 |
| Ashley Mast | 1982367223 | Physical Therapist | Wooster, OH | 2021 |
| Aubrey Mast | 1578196648 | Midwife | Windsor, CO | 2020 |
| Audrey Mast, COTA | 1467657270 | Occupational Therapy Assistant | Plymouth Meeting, PA | 2007 |
| Audrey Mast, LCPC | 1518730464 | Professional Counselor | Hinsdale, IL | 2023 |
| Autumn Mast, PA-C | 1790475150 | Physician Assistant | Pearland, TX | 2023 |
| Barry Mast, O.D. | 1396996203 | Optometrist | Santa Barbara, CA | 2008 |
| Benjamin Mast, PH.D. | 1306011671 | Clinical Psychologist | Louisville, KY | 2008 |
| Benjamin Mast, MS, OTR/L | 1639359128 | Occupational Therapist | Easton, PA | 2007 |
| Boston Mast | 1235071739 | Student in an Organized Health Care Education/Training Program | Tulsa, OK | 2026 |
| Bradley Mast, P.T. | 1033187893 | Physical Therapist | Hendersonville, NC | 2006 |
| Brigette Mast, FNP-C | 1669932943 | Family Nurse Practitioner | Grand Rapids, MI | 2019 |
| Brittney Mast | 1689508343 | Behavior Technician | Bountiful, UT | 2026 |
| Bruce Mast, M.D. | 1285670950 | Plastic Surgery Physician | Gainesville, FL | 2006 |
| Candice Mast | 1780302885 | Counselor | Mattoon, IL | 2022 |
| Carlyn Mast, LCSW | 1861047474 | Clinical Social Worker | Bryn Mawr, PA | 2019 |
| Carol Mast, MSW, CSW | 1659324978 | Clinical Social Worker | Shelby, MI | 2006 |
| Casey Mast, PHARMD, RPH | 1669027918 | Pharmacist | Zionsville, IN | 2019 |
| Catherine Mast, SLP | 1346438512 | Speech-Language Pathologist | Charlotte, NC | 2007 |
| Catherine Mast, RN NP | 1871762955 | Nurse Practitioner | Edwards, CO | 2008 |
| Cathryn Mast, APRN | 1134990435 | Family Nurse Practitioner | Tampa, FL | 2024 |
| Cheryl Mast, RPH | 1346887197 | Pharmacist | Wooster, OH | 2019 |
| Christopeher Mast, MD | 1417025172 | Family Medicine Physician | Galveston, TX | 2006 |
| Christopher Mast, D.D.S | 1649489329 | General Practice Dentistry | Helena, MT | 2007 |
| Clarence Mast, MD | 1902898638 | Family Medicine Physician | Meshoppen, PA | 2005 |
| Claudia Mast, LMSW | 1194296905 | Clinical Social Worker | Fairfield, IA | 2018 |
| Cynthia Mast, PA | 1326045410 | Physician Assistant | Lawrence, KS | 2005 |
| Daniel Mast, AUD | 1033004973 | Audiologist | Freeport, IL | 2025 |
| Daniel Mast, D.O. | 1104910140 | Internal Medicine Physician | Lancaster, PA | 2006 |
| Darren Mast, DO | 1548944853 | Psychiatry Physician | Philadelphia, PA | 2023 |
| Darryl Mast, RPH. | 1740454040 | Pharmacist | Inman, SC | 2008 |
| David Mast, DMD | 1780764811 | Pediatric Dentistry | Bellevue, WA | 2006 |
| David Mast, MD | 1912958331 | Internal Medicine Physician | Duluth, MN | 2006 |
| Dean Mast | 1760525406 | Emergency Medicine Physician | Olean, NY | 2007 |
| Dee Mast, LCPC | 1437227725 | Mental Health Counselor | Bozeman, MT | 2006 |
| Derek Mast | 1477411569 | Student in an Organized Health Care Education/Training Program | Camp Lejeune, NC | 2026 |
| Destiny Mast, BS | 1053289033 | Mental Health Counselor | Williamsport, PA | 2025 |
| Diana Mast, RN | 1306601067 | Home Health Registered Nurse | Dover, OH | 2024 |
| Dinah Mast, PHD | 1528114923 | Clinical Psychologist | Merrick, NY | 2007 |
| Dionne Mast, LMT | 1922451764 | Massage Therapist | Reedsburg, WI | 2016 |
| Dolores Mast, LCSW 63286 | 1992987242 | Clinical Social Worker | Fontana, CA | 2007 |
| Dorothea Mast, LMT | 1487571279 | Massage Therapist | Columbus, OH | 2026 |
| Duane Mast | 1710938170 | Family Medicine Physician | Greenfield, OH | 2006 |
| Elaine Mast | 1609231430 | Certified Registered Nurse Anesthetist | Seattle, WA | 2015 |
| Elaine Mast | 1760113617 | Social Worker | Philadelphia, PA | 2022 |
| Eric Mast, D.O. | 1427346287 | Family Medicine Physician | Longmont, CO | 2011 |
| Eric Mast, DO | 1437156296 | Family Medicine Physician | Sandusky, OH | 2005 |
| Erin Mast | 1669079224 | Behavior Technician | Penfield, NY | 2020 |
| Esther Mast, CNM | 1609847268 | Advanced Practice Midwife | Lititz, PA | 2006 |
| Evan Mast | 1639707623 | General Practice Dentistry | Elizabeth, NJ | 2020 |
| Gailene Mast, RN | 1336650274 | Pediatric Registered Nurse | Federal Way, WA | 2017 |
| Garrison Mast | 1205510914 | Physical Therapist | Tempe, AZ | 2023 |
| Gavin Mast | 1467927418 | Counselor | Olympia, WA | 2018 |
| Gloria Mast, COTA | 1730412685 | Pediatric Occupational Therapist | Buffalo, NY | 2009 |
| Grayson Mast | 1538809678 | Student in an Organized Health Care Education/Training Program | Norfolk, VA | 2022 |
| Harold Mast, MD | 1396790820 | Vascular & Interventional Radiology Physician | West Orange, NJ | 2006 |
| Harrison Mast | 1538968532 | Behavior Technician | Monrovia, CA | 2025 |
| Heather Mast, CNS | 1033530258 | Clinical Nurse Specialist | Round Rock, TX | 2013 |
| Heather Mast, LPN | 1326361312 | Licensed Practical Nurse | Junction City, OH | 2010 |
| Holly Mast, APRN | 1407101728 | Family Nurse Practitioner | Mount Vernon, OH | 2012 |
| Holly Mast, MAED | 1992045264 | Professional Counselor | Wooster, OH | 2013 |
| Hubert Mast | 1851363006 | Family Medicine Physician | Camp Pendleton, CA | 2006 |
| Isabella Mast | 1013864883 | Mental Health Counselor | Roseburg, OR | 2026 |
| Isaiah Mast, ATC | 1205484060 | Sports Medicine (Physical Medicine & Rehabilitation) Physician | Alliance, OH | 2019 |
| Jaclyn Mast | 1356186548 | Doula | Leander, TX | 2024 |
| Jacqueline Mast, CRNA | 1003885757 | Certified Registered Nurse Anesthetist | Lancaster, PA | 2006 |
| James Mast, PA-C | 1093482085 | Physician Assistant | Baltimore, MD | 2021 |
| James Mast, DDS | 1689675571 | General Practice Dentistry | Flagstaff, AZ | 2005 |
| James Mast, M.A. | 1902139439 | Professional Counselor | Sellersville, PA | 2009 |
| Jamie Mast | 1487418323 | Peer Specialist | Tulsa, OK | 2024 |
| Jane Mast, P.A.-C | 1568483337 | Physician Assistant | Merritt Island, FL | 2006 |
| Janice Mast, PT | 1639271547 | Physical Therapist | Westfield, IN | 2006 |
| Jay Mast, MD | 1447516620 | Internal Medicine Physician | Indianapolis, IN | 2012 |
| Jennifer Mast | 1346722691 | Clinical Social Worker | Stow, MA | 2018 |
| Jennifer Mast, RD | 1467899575 | Registered Dietitian | Danville, IL | 2013 |
| Jennifer Mast, CTRS | 1730276676 | Recreation Therapist | San Antonio, TX | 2006 |
| Jennifer Mast, M.D. | 1861811242 | Physical Medicine & Rehabilitation Physician | Westerville, OH | 2014 |
| Jeremy Mast | 1861847139 | Marriage & Family Therapist | Ventura, CA | 2016 |
| Jesse Mast | 1336955194 | Student in an Organized Health Care Education/Training Program | Indianapolis, IN | 2024 |
| Jessica Mast, CD(DONA), CLC | 1023324423 | Lactation Consultant (Non-RN) | Aurora, CO | 2010 |
| Jessica Mast | 1033043864 | Psychiatric/Mental Health Nurse Practitioner | Cedar Falls, IA | 2026 |
| Jessica Mast, CRNA | 1578668273 | Certified Registered Nurse Anesthetist | Ann Arbor, MI | 2006 |
| Joelle Mast, PHD, MD | 1285856054 | Neurology with Special Qualifications in Child Neurology Physician | Sleepy Hollow, NY | 2007 |
| John Mast, M.D. | 1154392371 | Family Medicine Physician | Elizabethtown, PA | 2006 |
| John Mast, MD | 1508807561 | Surgery Physician | Tracy, CA | 2006 |
| John Mast, D.D.S. | 1770676983 | General Practice Dentistry | Terre Haute, IN | 2006 |
| John Mast, MD | 1811488646 | Family Medicine Physician | Aurora, IL | 2018 |
| Jordan Mast, PA-C | 1518211051 | Medical Physician Assistant | Denver, CO | 2012 |
| Julia Mast, OTR/L | 1043977382 | Occupational Therapist | Arnold, MD | 2021 |
| Julie Mast, P.T. | 1710204789 | Physical Therapist | Columbus, OH | 2010 |
| Justin Mast, PHARM.D. | 1659668432 | Pharmacist | Mount Gilead, OH | 2011 |
| Kaitlin Mast, MAED, ATC, LAT | 1578148169 | Athletic Trainer | Vail, CO | 2021 |
| Kaitlyn Mast, DO | 1215878921 | Student in an Organized Health Care Education/Training Program | Doylestown, PA | 2026 |
| Kathleen Mast, MSW, LCSW | 1275501355 | Clinical Social Worker | Mishawaka, IN | 2006 |
| Kayla Mast, BEHAVIOR TECHNICIAN | 1417632662 | Behavior Technician | Edwardsville, IL | 2023 |
| Kelley Mast, B.S., QMHA | 1457541054 | Mental Health Counselor | Jasper, OR | 2007 |
| Kelley Mast, M.D. | 1487828257 | Pediatric Pathology Physician | Nashville, TN | 2008 |
| Keri Mast | 1154652832 | Physical Therapist | Harrisonburg, VA | 2010 |
| Kerri Mast | 1083181697 | Behavior Analyst | Virginia Beach, VA | 2018 |
| Kimberly Mast, MD | 1700071347 | Internal Medicine Physician | Galveston, TX | 2007 |
| Krista Mast, NP | 1568019750 | Adult Health Nurse Practitioner | Massillon, OH | 2019 |
| Kristie Mast, M.D. | 1922058759 | Family Medicine Physician | Philadelphia, PA | 2006 |
| Kyle Mast | 1154168045 | Physician Assistant | Massillon, OH | 2024 |
| Laurel Mast, MD | 1588195135 | Urology Physician | Port Angeles, WA | 2017 |
| Lauren Mast, PA-C | 1366983835 | Medical Physician Assistant | Manassas, VA | 2017 |
| Lauren Mast | 1447875257 | Behavior Technician | Rockford, MI | 2020 |
| Lauren Mast, LCSW | 1699514844 | Clinical Social Worker | Lancaster, PA | 2024 |
| Lauren Mast, LPCC | 1992274989 | Professional Counselor | Saint Paul, MN | 2018 |
| Lawrence Mast, DDS MSD PS | 1710067855 | Pediatric Dentistry | Bellevue, WA | 2006 |
| Leigh Mast, O.D. | 1689939456 | Optometrist | Federal Way, WA | 2012 |
| Lindsey Mast, M.S., CCC-SLP | 1336494467 | Speech-Language Pathologist | Anchorage, AK | 2012 |
| Lisa Mast | 1124436787 | Physical Therapy Assistant | Wichita, KS | 2014 |
| Logan Mast, M.D. | 1790928505 | Orthopaedic Surgery Physician | Louisville, KY | 2009 |
| Lynn Mast, PTA | 1174847230 | Physical Therapy Assistant | Humble, TX | 2010 |
| Man Mast | 1649458050 | Adult Health Nurse Practitioner | Greensboro, NC | 2008 |
| Marilyn Mast, MS COUNSELING | 1194827030 | Social Worker | New Brighton, MN | 2006 |
| Mark Mast, DMD | 1700446044 | Dentist | Ephrata, PA | 2019 |
| Mark Mast, MD | 1720166994 | Family Medicine Physician | Broadway, VA | 2006 |
| Matthew Mast, DPT | 1538924642 | Physical Therapist | Seattle, WA | 2024 |
| Matthew Mast, O.D. | 1760593735 | Optometrist | Atlanta, GA | 2006 |
| Maurice Mast, MD | 1811069305 | Internal Medicine Physician | Columbus, OH | 2006 |
| McLaine Mast, M.A., CCC-SLP, CBIS | 1346614476 | Speech-Language Pathologist | Ann Arbor, MI | 2015 |
| Megan Mast, LSW | 1962111955 | Clinical Social Worker | Wheat Ridge, CO | 2022 |
| Melinda Mast, PHARM D | 1720427941 | Pharmacist | Sapulpa, OK | 2013 |
| Melody Mast, CNM | 1376724393 | Women's Health Nurse Practitioner | Harrisonburg, VA | 2007 |
| Merl Mast, MERL MAST | 1235441924 | Family Nurse Practitioner | South Bend, IN | 2010 |
| Michael Mast, PHARMD | 1811625445 | Student in an Organized Health Care Education/Training Program | Pittsburgh, PA | 2022 |
| Miranda Mast, M.A., CCC-SLP | 1316357056 | Speech-Language Pathologist | Lakewood, CO | 2014 |
| Morgan Mast, MSN, RN, CNE | 1265821003 | Registered Nurse | Lewes, DE | 2015 |
| Morgan Mast | 1275338550 | Behavior Technician | Warsaw, IN | 2025 |
| Mose Mast | 1588865612 | Contractor | Virginia Beach, VA | 2007 |
| Nancy Mast, MFT | 1013112515 | Marriage & Family Therapist | Santa Cruz, CA | 2007 |
| Naomi Mast | 1326848706 | Chore Provider | Orchard, NE | 2025 |
| Natalie Mast, OTR | 1497274500 | Occupational Therapist | Tucson, AZ | 2017 |
| Nathan Mast | 1912715814 | Student in an Organized Health Care Education/Training Program | Lynchburg, VA | 2024 |
Source: CMS National Plan and Provider Enumeration System (NPPES) (download.cms.gov). A listing is not a recommendation: check a license with the state board (license lookups).