Providers Rachel Massie, COTA to Sylvia Massmanian, FNP-BC
300 individual NPIs in the federal registry, part 13,782 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. 89 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Rachel Massie, COTA | 1225679111 | Occupational Therapy Assistant | Allen, TX | 2019 |
| Raechel Massie, M.P.T. | 1194929414 | Physical Therapist | Wheeler, OR | 2007 |
| Rami Massie, MD | 1285881425 | Neurology Physician | Rochester, MN | 2008 |
| Richard Massie, MD | 1912952920 | Orthopaedic Surgery Physician | Aiken, SC | 2006 |
| Robert Massie, LICDC | 1447395215 | Addiction (Substance Use Disorder) Counselor | Marysville, OH | 2007 |
| Robert Massie, DDS | 1619961612 | Dentist | Saint Louis, MO | 2005 |
| Robert Massie | 1659467637 | Pharmacist | Peterstown, WV | 2006 |
| Robert Massie, D.M.D. | 1841453107 | General Practice Dentistry | Union, KY | 2008 |
| Ronald Massie, DDS, FAGD | 1285616235 | General Practice Dentistry | Lake Ozark, MO | 2005 |
| Ryan Massie | 1912779711 | Case Manager/Care Coordinator | Proctorville, OH | 2023 |
| Samantha Massie | 1528745312 | Case Manager/Care Coordinator | Pedro, OH | 2023 |
| Samantha Massie | 1801295076 | Occupational Therapist | Salisbury, MO | 2014 |
| Samia Massie, RN | 1508688623 | Registered Nurse | Cheyenne, WY | 2024 |
| Sara Massie | 1396625950 | Student in an Organized Health Care Education/Training Program | Creve Coeur, MO | 2025 |
| Sara Massie, RN | 1477183135 | Registered Nurse | La Center, WA | 2020 |
| Sarah Massie, LPC | 1669611182 | Professional Counselor | Virginia Beach, VA | 2009 |
| Shalene Massie, CD | 1912343062 | Doula | Floyd, VA | 2013 |
| Sonya Massie, APRN | 1427513977 | Family Nurse Practitioner | Ashland, KY | 2019 |
| Starr Massie | 1538092515 | Personal Care Attendant | Lennon, MI | 2026 |
| Sue Massie, ND | 1154747772 | Nutrition Education Nutritionist | Fair Haven, NJ | 2014 |
| Taylor Massie | 1124980719 | Mental Health Counselor | Weymouth, MA | 2025 |
| Taylor Massie, DPT | 1215654405 | Physical Therapist | Chicago, IL | 2022 |
| Taylor Massie | 1275318214 | Occupational Therapist | Miamisburg, OH | 2023 |
| Terrance Massie | 1083489041 | Community Health Worker | Mount Morris, MI | 2023 |
| Terri Massie | 1720888662 | Personal Care Attendant | Princeton, WV | 2025 |
| Terry Massie, D.M.D. | 1114050424 | General Practice Dentistry | New Castle, PA | 2007 |
| Theresa Massie | 1235225673 | Dental Assistant | Baraga, MI | 2006 |
| Thomas Massie, PT, DPT | 1710394267 | Physical Therapist | Kansas City, KS | 2014 |
| Thomas Massie, MD | 1720374275 | Family Medicine Physician | Marquette, MI | 2011 |
| Tia Massie | 1700722667 | Behavior Technician | Troy, MI | 2026 |
| Tiffany Massie, CRNA | 1063042026 | Certified Registered Nurse Anesthetist | Decatur, TX | 2020 |
| Tiffany Massie | 1235593518 | Addiction (Substance Use Disorder) Counselor | Ashland, OH | 2016 |
| Tonya Massie, MS | 1629892229 | Mental Health Counselor | Beckley, WV | 2024 |
| Tricia Massie, SLPA | 1154400349 | Speech-Language Assistant | Abbeville, LA | 2006 |
| Troy Massie | 1689158107 | Physical Therapist | Floresville, TX | 2018 |
| Tyler Massie | 1184331613 | Case Manager/Care Coordinator | Franklin Furnace, OH | 2022 |
| Tyler Massie, LMFT | 1831541937 | Marriage & Family Therapist | Chester, CT | 2016 |
| Valerie Massie | 1164015707 | Mental Health Counselor | Wrangell, AK | 2021 |
| Valerie Massie | 1447067913 | Homemaker | Xenia, OH | 2024 |
| Valerie Massie | 1679612402 | Social Worker | Ronceverte, WV | 2007 |
| Vonda Massie, FNP-BC | 1366146680 | Family Nurse Practitioner | Rainsville, AL | 2023 |
| Wealtha Massie | 1679407993 | Home Health Aide | Harts, WV | 2026 |
| Wendy Massie | 1811792815 | Licensed Practical Nurse | Lenexa, KS | 2025 |
| Anna Massie-Gonzalez, FNP | 1891261459 | Family Nurse Practitioner | Pharr, TX | 2018 |
| Schenike Massie-Lambert, PH.D. | 1699042663 | Clinical Psychologist | Hammonton, NJ | 2011 |
| Kellie Massie-Osborne, P.T. | 1073684080 | Specialist | Saint Petersburg, FL | 2006 |
| Mary Massie-Story, MD | 1013014679 | Family Medicine Physician | Cleveland, OH | 2006 |
| Kristin Massie-Sunday, MA, ATR, LPC | 1619287356 | Counselor | Greensburg, PA | 2010 |
| Ana Massiello, AUD | 1528535259 | Audiologist | Youngstown, OH | 2018 |
| Angela Massiello, LADC | 1396365706 | Addiction (Substance Use Disorder) Counselor | Uncasville, CT | 2020 |
| Emily Massiello, MS | 1700309937 | Genetic Counselor (M.S.) | Cleveland, OH | 2017 |
| Scott Massien, MD | 1093811879 | Internal Medicine Physician | Beachwood, OH | 2006 |
| Anamaria Massier, MD | 1639372261 | Internal Medicine Physician | Lakewood, OH | 2007 |
| Christian Massier, M.D. | 1700080140 | Surgery Physician | Lorain, OH | 2007 |
| Leonor Massieu, R.D., L.D., C.N.S.D. | 1093860728 | Registered Dietitian | Houston, TX | 2007 |
| Mary Massieu, DNP, FNP -C | 1144644287 | Family Nurse Practitioner | Dewey, AZ | 2014 |
| Carla Massignan | 1912895566 | Dentist | Chicago, IL | 2025 |
| Dale Massignan, O.D. | 1760487607 | Optometrist | Eagle River, WI | 2005 |
| Jason Massignan, M.D. | 1700197548 | Emergency Medicine Physician | Newport News, VA | 2010 |
| Stacey Massignan, M.D. | 1801155056 | Emergency Medicine Physician | Santa Rosa, CA | 2012 |
| Tuuli Massignan, L.AC. | 1902365885 | Acupuncturist | Milwaukee, WI | 2019 |
| Leeanna Massignani | 1871892406 | Case Manager/Care Coordinator | Riverside, CA | 2011 |
| Anthony Massih | 1194363911 | Mental Health Counselor | Aurora, IL | 2019 |
| Georges Massih, MD | 1467651414 | Internal Medicine Physician | Brighton, MA | 2007 |
| Karmen Massih, D.D.S., M.D.S. | 1356675474 | Orthodontics and Dentofacial Orthopedics Dentistry | Glendale, CA | 2009 |
| Lyna Massih, MD | 1912930348 | Pediatric Adolescent Medicine Physician | Orland Park, IL | 2006 |
| Mahin Massih | 1851789671 | Occupational Therapy Assistant | Van Nuys, CA | 2014 |
| Maliheh Massih, M.D. | 1679682769 | Pain Medicine (Physical Medicine & Rehabilitation) Physician | Campbell, CA | 2006 |
| Mina Massih, CFO | 1609010685 | Orthotic Fitter | Omaha, NE | 2009 |
| Neda Massih, OTR/L | 1700253366 | Occupational Therapist | Woodland Hills, CA | 2015 |
| Shawkat Massih, MD | 1215125588 | Family Medicine Physician | Middletown, NY | 2007 |
| Shyda Massih | 1295376762 | Marriage & Family Therapist | Encino, CA | 2019 |
| Hamid Massiha, MD | 1235296948 | Plastic Surgery Physician | Metairie, LA | 2007 |
| Aviva Massihesraelian, PA | 1912648718 | Physician Assistant | West Hempstead, NY | 2022 |
| Allen Massihi, DPM | 1780606764 | Foot & Ankle Surgery Podiatrist | Glendale, CA | 2006 |
| Artin Massihi, M.D. | 1104911403 | Emergency Medicine Physician | Bakersfield, CA | 2006 |
| Gladis Massihi | 1013622695 | Registered Nurse | Van Nuys, CA | 2023 |
| Diane Massik, P.T. | 1265762306 | Physical Therapist | Colorado Springs, CO | 2010 |
| Comlan Massikou | 1295530194 | Day Training/Habilitation Specialist | Bellevue, NE | 2025 |
| David Massil, M.D. | 1528246840 | Internal Medicine Physician | Roseville, CA | 2008 |
| Floriana Massil, FNP | 1326772179 | Family Nurse Practitioner | Merrick, NY | 2022 |
| Maryann Massillio, MPS,RDN,CDN,FAND | 1750874079 | Nutritionist | Middletown, NY | 2018 |
| Annbel Massillon | 1629831821 | Behavior Technician | Rockville, MD | 2024 |
| Arlie Massillon, RPA | 1073742243 | Medical Physician Assistant | Astoria, NY | 2009 |
| Erline Massillon, OTD | 1790498640 | Pediatric Occupational Therapist | Orlando, FL | 2023 |
| Faniska Massillon | 1093338733 | Family Nurse Practitioner | Norcross, GA | 2020 |
| Marie Massillon | 1801359708 | Licensed Practical Nurse | Cambridge, MA | 2019 |
| Mode Massillon, NP | 1083573802 | Family Nurse Practitioner | West Palm Beach, FL | 2026 |
| Nadine Massillon, ARNP | 1760966915 | Psychiatric/Mental Health Nurse Practitioner | Orlando, FL | 2018 |
| Teresa Massillon, IBCLC | 1285985622 | Lactation Consultant (Non-RN) | San Francisco, CA | 2012 |
| Vanessa Massillon, CHW | 1598613119 | Community Health Worker | Boston, MA | 2026 |
| Kyla Massimb, FNP-BC | 1548013360 | Family Nurse Practitioner | South Elgin, IL | 2024 |
| Gerald Massimei, D.D.S. | 1598783078 | General Practice Dentistry | San Diego, CA | 2006 |
| Allyson Massimi, CDN, RDN | 1154213932 | Registered Dietitian | Hamburg, NY | 2025 |
| Emilia Massimi, OTR | 1386787570 | Specialist | Scottsdale, AZ | 2007 |
| Gregory Massimi, MD | 1396786398 | Anatomic Pathology & Clinical Pathology Physician | Norfolk, VA | 2006 |
| Robert Massimi, DDS | 1811102999 | Dentist | New York, NY | 2007 |
| Stephen Massimi, M.D. | 1831331388 | Physical Medicine & Rehabilitation Physician | Stamford, CT | 2009 |
| Tareq Massimi, M.D. | 1962660936 | Vascular Surgery Physician | Mc Lean, VA | 2008 |
| Theresa Massimi | 1023320660 | Speech-Language Pathologist | Kingston, NY | 2010 |
| Traci Massimi | 1790952224 | Speech-Language Assistant | Beverly, MA | 2008 |
| Marion Massimiano, APN | 1578508891 | Critical Care Medicine Nurse Practitioner | Pomona, NJ | 2006 |
| Paul Massimiano, M.D. | 1629037833 | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | Falls Church, VA | 2006 |
| Rocco Massimiano, PHARM.D. | 1538688486 | Pharmacist | San Bernardino, CA | 2017 |
| James Massimilian, D.O. | 1598766966 | Emergency Medicine Physician | Palos Heights, IL | 2005 |
| John Massimilian, DO | 1598721508 | Emergency Medicine Physician | Crown Point, IN | 2006 |
| Stephanie Massimilian | 1447000559 | Student in an Organized Health Care Education/Training Program | Pembroke Pines, FL | 2024 |
| Rachel Massimilla, LMSW | 1255685228 | Clinical Social Worker | Sterling Heights, MI | 2012 |
| Sara Massimilla | 1316487747 | Occupational Therapist | Chambersburg, PA | 2017 |
| Anthony Massimillo, M.D. | 1043277692 | Gastroenterology Physician | Mineola, NY | 2006 |
| Josi Massimillo | 1447119268 | Student in an Organized Health Care Education/Training Program | Gainesville, FL | 2026 |
| Amelia Massimini, CPNP | 1265865091 | Pediatric Nurse Practitioner | Brighton, MA | 2013 |
| Brian Massimini, DC | 1649588641 | Rehabilitation Chiropractor | South Abington Township, PA | 2010 |
| Christopher Massimini, DPT | 1659699155 | Physical Therapist | Milford, DE | 2010 |
| Colinda Massimini, M.S., CCC-SLP | 1891468534 | Speech-Language Pathologist | Covington, LA | 2021 |
| Elizabeth Massimini, DPM | 1922078765 | Foot Surgery Podiatrist | Media, PA | 2006 |
| Leana Massimini, M.A., CCC-SLP | 1114406303 | Speech-Language Pathologist | Bedford, IN | 2018 |
| Marissa Massimini, LMFT | 1912608183 | Marriage & Family Therapist | Encinitas, CA | 2023 |
| Nicolas Massimini, PA | 1750511481 | Medical Physician Assistant | Miami, FL | 2009 |
| Stephanie Massimini, L.AC. | 1073841045 | Acupuncturist | Media, PA | 2009 |
| Teresa Massimini-Chilla, OTR/L | 1275092157 | Occupational Therapist | Park Ridge, IL | 2019 |
| Amy Massimino, RN | 1164011383 | Community Health Registered Nurse | Beaver, PA | 2021 |
| Ashley Massimino, PSY.D. | 1619161569 | Clinical Psychologist | Anaheim, CA | 2007 |
| Britney Massimino | 1023562261 | Speech-Language Pathologist | Burlingame, CA | 2016 |
| Carola Massimino | 1275171720 | Physical Therapist | Bronxville, NY | 2019 |
| Caryn Massimino, RD | 1679021455 | Registered Dietitian | Orange, CT | 2016 |
| Erica Massimino, LCSW | 1912399635 | Clinical Social Worker | New Haven, CT | 2015 |
| F. Anthony Massimino, MD | 1477631539 | Physical Medicine & Rehabilitation Physician | Martinez, CA | 2006 |
| Gabriella Massimino | 1457152589 | Mental Health Counselor | Brooklyn, NY | 2025 |
| Grace Massimino, M.S. ED, NCC | 1679359970 | Mental Health Counselor | Conshohocken, PA | 2023 |
| Jennifer Massimino | 1649840711 | Pediatric Physical Therapist | Saint Louis, MO | 2021 |
| John Massimino, M.D. | 1720282239 | Clinical Psychologist | Laguna Niguel, CA | 2007 |
| Kasson Massimino, DPT | 1407622731 | Physical Therapist | Washington, DC | 2023 |
| Kristen Massimino, MD | 1720208556 | Surgical Oncology Physician | Portland, OR | 2007 |
| Sara Massimino, DPT | 1801202940 | Physical Therapist | Mc Kees Rocks, PA | 2014 |
| Annmarie Massimo, OGNP | 1407994809 | Obstetrics & Gynecology Nurse Practitioner | Prescott, AZ | 2007 |
| Cheryl Massimo, CHERYL MASSIMO, LCSW | 1104862242 | Mental Health Counselor | Pittsburgh, PA | 2006 |
| Dominic Massimo | 1548969462 | Behavior Analyst | Las Vegas, NV | 2023 |
| Doryam Massimo, MA | 1356471312 | Professional Counselor | Cambridge, MA | 2007 |
| Elaina Massimo, CF-SLP | 1518701895 | Speech-Language Pathologist | Islandia, NY | 2024 |
| Elise Massimo, P.T. | 1851643837 | Physical Therapist | Delmar, NY | 2012 |
| Gabrielle Massimo, PA-C | 1396465886 | Physician Assistant | Eagleville, PA | 2022 |
| Julianne Massimo, PH.D. | 1962913574 | Mental Health Counselor | Akron, OH | 2017 |
| Julie Massimo | 1588105258 | Behavior Technician | Vero Beach, FL | 2017 |
| Kristin Massimo, PA-C | 1104248772 | Physician Assistant | Houston, TX | 2014 |
| Lauren Massimo, CRNP | 1063619682 | Adult Health Nurse Practitioner | Philadelphia, PA | 2007 |
| Melissa Massimo, LCSW | 1871091512 | Clinical Social Worker | Long Beach, NY | 2018 |
| Tori Massimo | 1144884511 | Mental Health Counselor | Schwenksville, PA | 2019 |
| Brandon Massin, M.D. | 1205060951 | Diagnostic Radiology Physician | Eden Prairie, MN | 2009 |
| Christopher Massin, DO | 1922022409 | Diagnostic Radiology Physician | Grand Rapids, MI | 2006 |
| Edward Massin, MD | 1528062379 | Cardiovascular Disease Physician | Houston, TX | 2005 |
| January Massin, PH.D. | 1508115189 | Psychologist | New York, NY | 2012 |
| Solomon Massin, LCSW | 1942563606 | Clinical Social Worker | Santa Ana, CA | 2012 |
| Yoshua Massin | 1982293379 | Behavior Technician | Honolulu, HI | 2021 |
| Maraya Massin-Levey | 1932756004 | Counselor | Portland, OR | 2019 |
| Barbara Massina, LCSW | 1710451919 | Clinical Social Worker | Garden City, NY | 2019 |
| Elisabeth Massina, MSW, LMSW | 1205503315 | Clinical Social Worker | Sudbury, MA | 2021 |
| Lorraine Massina | 1194292243 | Licensed Practical Nurse | Smithtown, NY | 2018 |
| Michael Massina | 1538700778 | Adult Psychiatric/Mental Health Registered Nurse | Brentwood, NY | 2019 |
| Nicole Massina | 1205598265 | Specialist | Oakdale, NY | 2021 |
| Robin Massina | 1366118564 | Behavior Technician | Bloomsburg, PA | 2021 |
| Summer Massina, ARNP | 1003303165 | Family Nurse Practitioner | Portland, OR | 2018 |
| Katrina Massinburg, MSN, APRN, FNP-BC | 1013725415 | Family Nurse Practitioner | Dallas, TX | 2024 |
| Makala Massinburg, PA-C | 1871452474 | Physician Assistant | Arlington, TX | 2026 |
| Kimberly Massine | 1477053734 | Case Manager/Care Coordinator | Minot, ND | 2018 |
| Russell Massine, M.D. | 1447329032 | Nephrology Physician | Bend, OR | 2006 |
| Alexandria Massinello | 1902360415 | Behavior Technician | Columbia, SC | 2019 |
| Bruce Massing, DDS | 1427117076 | General Practice Dentistry | Lebanon, OH | 2006 |
| Catherine Massing | 1164961512 | Mental Health Counselor | Westampton, NJ | 2017 |
| David Massing, PT, DPT, FAAOMPT | 1477670503 | Physical Therapist | Fort Sam Houston, TX | 2007 |
| Lauri Massing, PHD | 1962501536 | Psychologist | Attleboro, MA | 2006 |
| Leo Massing | 1083205769 | Personal Care Attendant | Sicklerville, NJ | 2021 |
| Lisa Massing | 1992396683 | Personal Care Attendant | Sicklerville, NJ | 2021 |
| Marie-Josee Massing, PHARMD | 1386287761 | Pharmacist | Laurel, MD | 2019 |
| Robin Massing, RPA-C | 1801869284 | Physician Assistant | Williamsville, NY | 2006 |
| Thomas Massing, PA-C | 1992834345 | Physician Assistant | Madison, WI | 2007 |
| Olivia Massing Epse Moffo, PCA | 1336639475 | Home Health Aide | Adelphi, MD | 2018 |
| Maya Massing-Schaffer, PHD | 1912677428 | Clinical Psychologist | Belmont, MA | 2021 |
| Cethanie Massingale | 1396179206 | Peer Specialist | Everett, WA | 2013 |
| Christine Massingale, CADC I | 1720540461 | Addiction (Substance Use Disorder) Counselor | Otis, OR | 2019 |
| Halle Massingale, RBT | 1942930425 | Behavior Technician | Greenwood, IN | 2022 |
| Harold Massingale, M.D. | 1568402865 | Emergency Medicine Physician | Knoxville, TN | 2006 |
| Linda Massingale | 1982471181 | Homemaker | Cleveland, OH | 2023 |
| Malisa Massingale, LBSW | 1245407451 | Social Worker | Las Cruces, NM | 2008 |
| Melissa Massingale | 1376156117 | Physical Therapy Assistant | Marietta, GA | 2020 |
| Michelle Massingale, PT | 1033458765 | Physical Therapist | Phoenix, AZ | 2013 |
| Michelle Massingale, CADC-R | 1336590157 | Addiction (Substance Use Disorder) Counselor | Eugene, OR | 2016 |
| Morgan Massingale, NMD | 1134603210 | Naturopath | Paradise Valley, AZ | 2018 |
| Nykelia Massingale | 1801176631 | Counselor | Tacoma, WA | 2011 |
| Orlando Massingale | 1598947988 | Addiction (Substance Use Disorder) Counselor | Berkeley, CA | 2007 |
| Shannon Massingale | 1477986354 | Case Manager/Care Coordinator | Jacksonville, FL | 2013 |
| Shannon Massingale, PHARM.D. | 1861973737 | Pharmacist | Sweetwater, TN | 2018 |
| Shelby Massingale, LCSW | 1174099881 | Clinical Social Worker | Tigard, OR | 2018 |
| Steven Massingale, PTA | 1265863989 | Physical Therapy Assistant | Portland, OR | 2013 |
| Savanah Massinger | 1669323507 | Professional Counselor | Dallas, TX | 2026 |
| William Massinger, LCSW | 1255466371 | Clinical Social Worker | Southampton, PA | 2007 |
| Jessica Massingham | 1780329847 | Hearing Instrument Specialist | Fresno, CA | 2022 |
| Kirsty Massingham | 1720314065 | Massage Therapist | Port Angeles, WA | 2009 |
| Kristen Massingham, CPNP | 1336409424 | Pediatric Nurse Practitioner | Essex Junction, VT | 2012 |
| Lauren Massingham, M.D. | 1417000357 | Clinical Genetics (M.D.) Physician | Boston, MA | 2007 |
| Peter Massingham | 1750644399 | Pharmacist | Port Angeles, WA | 2012 |
| Alexandrea Massingill, COTA/L | 1457039679 | Occupational Therapy Assistant | Dalton, GA | 2023 |
| Alyson Massingill, OTR | 1063241115 | Occupational Therapist | San Antonio, TX | 2024 |
| Amy Massingill, LPC | 1902138688 | Professional Counselor | Clemson, SC | 2010 |
| Beau Massingill, DPT | 1508339961 | Physical Therapist | Monroe, MI | 2019 |
| Caitlyn Massingill | 1639628852 | Mental Health Counselor | Bentonville, AR | 2016 |
| Candis Massingill, PHARM.D. | 1598197659 | Pharmacist | Little Rock, AR | 2013 |
| Desiree Massingill | 1912690785 | Licensed Practical Nurse | Chardon, OH | 2023 |
| Douglas Massingill, D.D.S. | 1578785473 | General Practice Dentistry | Daytona Beach, FL | 2007 |
| Douglas Massingill, RPH | 1730457995 | Pharmacist | Colorado Springs, CO | 2011 |
| Ethan Massingill, DO | 1619665478 | Internal Medicine Physician | Seguin, TX | 2023 |
| George Massingill, MD | 1902812977 | Obstetrics & Gynecology Physician | Lubbock, TX | 2006 |
| Hannah Massingill | 1114811833 | Registered Nurse | Bryan, TX | 2025 |
| James Massingill, LPC | 1942495528 | Professional Counselor | Dallas, TX | 2007 |
| Jasmine Massingill | 1497462998 | Specialist | Bismarck, ND | 2022 |
| John Massingill, D.D.S. | 1881719029 | Dentist | Bellaire, TX | 2007 |
| Julie Massingill, RPH | 1821316423 | Pharmacist | San Antonio, TX | 2010 |
| Kaitlyn Massingill, MSN, APRN, FNP-C | 1982336228 | Family Nurse Practitioner | Waco, TX | 2022 |
| Kristen Massingill, AGNP-C, PMHNP-BC | 1083290464 | Psychiatric/Mental Health Nurse Practitioner | Detroit, MI | 2021 |
| Mackenzie Massingill, BCBA | 1578245593 | Behavior Analyst | West Lafayette, IN | 2023 |
| Paul Massingill | 1851162291 | Marriage & Family Therapist | Fort Worth, TX | 2024 |
| Robert Massingill, MD | 1770587461 | Hematology & Oncology Physician | Bossier City, LA | 2005 |
| Samuel Massingill, M.D. | 1336121342 | Pediatrics Physician | Meridian, MS | 2005 |
| Teresa Massingill | 1154748820 | Addiction (Substance Use Disorder) Counselor | Clearlake, CA | 2014 |
| Toni Massingill | 1043045198 | Personal Care Attendant | Cleveland, OH | 2024 |
| Jessica Massingille | 1568058881 | Social Worker | Shelbyville, TN | 2020 |
| Karen Massingille, LPC | 1942599295 | Professional Counselor | South Lyon, MI | 2011 |
| Nancy Massingille, LMFT | 1497011332 | Marriage & Family Therapist | Macon, GA | 2012 |
| Keshunda Massington | 1063081321 | Behavior Technician | Pearland, TX | 2021 |
| John Massini, M.D. | 1588899231 | Rheumatology Physician | Gainesville, FL | 2009 |
| Juan Massini | 1346456621 | General Practice Physician | Carolina, PR | 2007 |
| Suli Massini, DMD | 1881925402 | Dentist | Jayuya, PR | 2010 |
| Tara Massini, MD | 1174732051 | Diagnostic Radiology Physician | Gainesville, FL | 2007 |
| Betty Massino, MASSAGE THERAPIST | 1780942441 | Massage Therapist | Pueblo, CO | 2012 |
| Francis Massino, PH.D | 1447459284 | Cognitive & Behavioral Psychologist | New York, NY | 2007 |
| Haley Massino, NP | 1467317156 | Psychiatric/Mental Health Nurse Practitioner | Westminster, MD | 2025 |
| Amanda Massinople, PPS | 1083587398 | School Counselor | Novato, CA | 2025 |
| Chala Massinople, CNM | 1164071288 | Advanced Practice Midwife | Saint Paul, MN | 2019 |
| Christina Massinople, M.D. | 1730161928 | Specialist | Mobile, AL | 2005 |
| David Massinople, M.D. | 1255541785 | Cardiovascular Disease Physician | West Jordan, UT | 2007 |
| Ryan Massinople, DDS | 1083307136 | General Practice Dentistry | Chicago, IL | 2023 |
| Sharon Massinople, PAC | 1740387133 | Physician Assistant | Salt Lake City, UT | 2006 |
| Ann Massion, M.D. | 1376517664 | Psychiatry Physician | Del Mar, CA | 2006 |
| Brandon Massion, LCSW | 1164228524 | Clinical Social Worker | Tallahassee, FL | 2025 |
| Charlea Massion | 1861472375 | Family Medicine Physician | Aptos, CA | 2006 |
| Elaine Massion, MFT | 1568218527 | Mental Health Counselor | Westlake Village, CA | 2024 |
| Samuel Massion | 1821793654 | Hospitalist Physician | San Francisco, CA | 2023 |
| Tai Massion | 1336446459 | Case Manager/Care Coordinator | Eureka, CA | 2011 |
| Scott Massios, MD | 1982681656 | Ophthalmology Physician | Seneca, SC | 2005 |
| Becca Massip | 1770097032 | Occupational Therapist | Mission Viejo, CA | 2017 |
| Jennifer Massip, LCSW | 1386102275 | Clinical Social Worker | Newport, RI | 2019 |
| Joshua Massip | 1285511196 | Speech-Language Pathologist | Selma, CA | 2025 |
| Elvis Massip-Perez, MD | 1851925135 | Family Medicine Physician | Katy, TX | 2020 |
| Daniel Massirer, LAT, ATC | 1013304203 | Athletic Trainer | Paragould, AR | 2015 |
| Rebecca Massirer, PT | 1659556678 | Physical Therapist | Baton Rouge, LA | 2008 |
| Sarah Massiri, BA | 1366079402 | Other Technician | Detroit, MI | 2020 |
| Yasmeen Massiri, DDS | 1265277891 | Dentist | Dearborn Heights, MI | 2024 |
| Barry Massirio, PA-C | 1922000355 | Physician Assistant | Bakersfield, CA | 2005 |
| Anwar Massis, DO | 1437842366 | Student in an Organized Health Care Education/Training Program | Philadelphia, PA | 2023 |
| Faris Massis, RPH | 1932576840 | Pharmacist | Las Vegas, NV | 2015 |
| Firas Massis | 1255937314 | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | North Las Vegas, NV | 2020 |
| Kamal Massis, M.D. | 1922081207 | Vascular & Interventional Radiology Physician | El Segundo, CA | 2005 |
| Kelsey Massis, RD | 1801135793 | Registered Dietitian | Rancho Cucamonga, CA | 2013 |
| Maher Massis | 1023905858 | Mental Health Counselor | Herndon, VA | 2025 |
| Petra Massis, CCC-SLP | 1073255618 | Speech-Language Pathologist | Herndon, VA | 2022 |
| Zipora Massis, LCSW | 1265529218 | Clinical Social Worker | Bronx, NY | 2006 |
| Charles Massler, D.D.S. | 1669477758 | General Practice Dentistry | Winston Salem, NC | 2005 |
| Joshua Massler, PSY.D., M.A. | 1629295068 | Clinical Psychologist | Livingston, NJ | 2007 |
| Martin Massler | 1659798064 | Psychoanalyst | West Pawlet, VT | 2014 |
| Anthony Masslofsky, PA | 1215999149 | Physician Assistant | Roxboro, NC | 2006 |
| Jennifer Masslon, FNP-C | 1598309866 | Family Nurse Practitioner | Las Vegas, NV | 2019 |
| Amanda Massman, LCSW | 1578920864 | Clinical Social Worker | Jacksonville, FL | 2016 |
| Andrew Massman, M.D. | 1104896729 | Obstetrics & Gynecology Physician | Austin, TX | 2006 |
| Chelsea Massman | 1124622246 | Pharmacist | Portland, IN | 2020 |
| Chris Massman, LMFT, CDS | 1538516976 | Marriage & Family Therapist | Woodland Hills, CA | 2016 |
| Christopher Massman | 1821572710 | Mental Health Counselor | The Dalles, OR | 2018 |
| Claire Massman, PA | 1265932651 | Physician Assistant | Bloomington, IN | 2018 |
| Elizabeth Massman | 1588148944 | Psychiatric/Mental Health Nurse Practitioner | Prairie Village, KS | 2018 |
| Emily Massman, PTA | 1194476812 | Physical Therapy Assistant | Bloomington, MN | 2022 |
| Emma Massman, LICSW | 1467093005 | Clinical Social Worker | Owatonna, MN | 2019 |
| Jennifer Massman, IHP HEALTH COACH | 1013631886 | Health & Wellness Coach | Austin, TX | 2022 |
| Jennifer Massman, RD | 1013779230 | Registered Dietitian | Centerville, OH | 2024 |
| Jessica Massman | 1871055756 | Case Manager/Care Coordinator | Wasilla, AK | 2019 |
| Judy Massman, LPC, LCSW | 1184823239 | Clinical Social Worker | Jefferson City, MO | 2007 |
| Kalie Massman, PTA | 1285385658 | Physical Therapy Assistant | Osage Beach, MO | 2022 |
| Kate Massman, RD | 1255261525 | Pediatric Nutrition Registered Dietitian | Saint Louis, MO | 2026 |
| Kaylee Massman, MD | 1861337743 | Student in an Organized Health Care Education/Training Program | Charlotte, NC | 2026 |
| Lisa Massman, BSW | 1740435577 | Case Manager/Care Coordinator | La Crosse, WI | 2008 |
| Logan Massman | 1861189649 | Student in an Organized Health Care Education/Training Program | Philadelphia, PA | 2023 |
| Margo Massman, SLP | 1831330224 | Speech-Language Pathologist | Chattanooga, TN | 2009 |
| Melissa Massman, LPC-IT | 1265188114 | Mental Health Counselor | La Crosse, WI | 2022 |
| Meredith Massman, CPNP | 1679038442 | Pediatric Nurse Practitioner | Kansas City, MO | 2019 |
| Robert Massman, PT, DPT | 1245848977 | Physical Therapist | Warrensburg, MO | 2020 |
| Sarah Massman, MA., CCC-SLP | 1508587395 | Speech-Language Pathologist | Cincinnati, OH | 2022 |
| Sarah Massman | 1972420818 | Student in an Organized Health Care Education/Training Program | Omaha, NE | 2026 |
| Shanna Massman, MA, ATC | 1982098265 | Athletic Trainer | Springfield, NE | 2015 |
| Tammy Massman, LCSW | 1316519093 | Clinical Social Worker | Jefferson City, MO | 2021 |
| Toby Massman, PHARM.D | 1124194709 | Pharmacist | Seattle, WA | 2006 |
| Travis Massman | 1851829352 | Marriage & Family Therapist | West Hollywood, CA | 2017 |
| Sylvia Massmanian, FNP-BC | 1942618483 | Family Nurse Practitioner | Lexington, MA | 2014 |
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).