Providers Marcus Williams to Mark Williams
300 individual NPIs in the federal registry, part 23,617 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. 57 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Marcus Williams | 1922876689 | Behavior Technician | San Diego, CA | 2023 |
| Marcus Williams | 1972108413 | Behavior Technician | Victorville, CA | 2020 |
| Marcus Williams, LMHC | 1992375927 | Mental Health Counselor | Brandon, FL | 2021 |
| Marcy Williams, RT.T. | 1437231875 | Radiation Therapy Radiologic Technologist | Indianapolis, IN | 2006 |
| Marcy Williams, MBA | 1861956708 | Case Manager/Care Coordinator | Richmond, VA | 2019 |
| Marcy Williams | 1972628758 | Registered Nurse | Silver City, NM | 2007 |
| Marda Williams | 1538525969 | Mental Health Counselor | Tacoma, WA | 2016 |
| Mardreyanna Williams | 1619787827 | Personal Care Attendant | Las Vegas, NV | 2025 |
| Mardria Williams | 1356449987 | Mental Health Counselor | Tucson, AZ | 2006 |
| Maren Williams | 1316464548 | Physical Therapist | Wauseon, OH | 2017 |
| Maren Williams | 1427324292 | Professional Counselor | Austin, TX | 2012 |
| Mareshah Williams | 1740977180 | Family Nurse Practitioner | Valley Stream, NY | 2023 |
| Mareth Williams, M.D. | 1972640191 | Pediatrics Physician | Albuquerque, NM | 2007 |
| Marfay Williams | 1386144632 | Personal Care Attendant | Las Vegas, NV | 2018 |
| Margardell Williams | 1780164558 | Physical Therapy Assistant | Texas City, TX | 2018 |
| Margaret Williams | 1023690526 | Behavior Technician | Mobile, AL | 2021 |
| Margaret Williams | 1083099386 | Mental Health Counselor | Chelsea, MA | 2015 |
| Margaret Williams, PT | 1083752661 | Physical Therapist | Bellaire, TX | 2007 |
| Margaret Williams | 1093135139 | Adult Health Clinical Nurse Specialist | Springfield, MO | 2014 |
| Margaret Williams, PHD, RN, APRN, BC | 1134264633 | Family Nurse Practitioner | Roswell, GA | 2007 |
| Margaret Williams | 1134902950 | Student in an Organized Health Care Education/Training Program | Los Angeles, CA | 2023 |
| Margaret Williams | 1144582800 | Student in an Organized Health Care Education/Training Program | New City, NY | 2012 |
| Margaret Williams, LPC | 1154141810 | Mental Health Counselor | Auburn, AL | 2024 |
| Margaret Williams | 1174189542 | Personal Care Attendant | Nashville, GA | 2019 |
| Margaret Williams, PT | 1184156473 | Physical Therapist | Leonardtown, MD | 2017 |
| Margaret Williams, C.O.T.A | 1184345258 | Occupational Therapy Assistant | Orlando, FL | 2022 |
| Margaret Williams | 1215003876 | Psychiatric/Mental Health Nurse Practitioner | Bonham, TX | 2006 |
| Margaret Williams, LCSW | 1225058118 | Clinical Social Worker | Burlington, NC | 2006 |
| Margaret Williams | 1225505480 | Psychologist | San Diego, CA | 2018 |
| Margaret Williams, ARNP | 1265571871 | Pediatric Nurse Practitioner | Tacoma, WA | 2007 |
| Margaret Williams, CPNP | 1275203952 | Pediatric Nurse Practitioner | Kansas City, MO | 2021 |
| Margaret Williams | 1275243909 | Recreation Therapist | San Antonio, TX | 2022 |
| Margaret Williams, CERTIFIED NURSE ASSI | 1275980195 | Nurse's Aide | Chicago, IL | 2016 |
| Margaret Williams, LPC | 1295967487 | Professional Counselor | Macon, GA | 2009 |
| Margaret Williams, FNP | 1306292842 | Family Nurse Practitioner | Bismarck, ND | 2016 |
| Margaret Williams | 1306408083 | Home Health Aide | Washington, DC | 2019 |
| Margaret Williams, LMSW | 1306533039 | Clinical Social Worker | Independence, MO | 2023 |
| Margaret Williams, APRN | 1326239013 | Adult Health Nurse Practitioner | Cape Girardeau, MO | 2007 |
| Margaret Williams | 1346604071 | Clinical Pathology Physician | Salt Lake City, UT | 2016 |
| Margaret Williams, MD | 1346875481 | Obstetrics & Gynecology Physician | Chicago, IL | 2020 |
| Margaret Williams, LCSW | 1356439475 | Clinical Social Worker | Lynchburg, VA | 2006 |
| Margaret Williams, DC | 1366634651 | Chiropractor | Hastings, MN | 2007 |
| Margaret Williams | 1376336164 | Behavior Technician | Baltimore, MD | 2025 |
| Margaret Williams, PT | 1427296458 | Pediatric Physical Therapist | Venice, FL | 2009 |
| Margaret Williams | 1427441187 | Physical Therapy Assistant | Hatboro, PA | 2015 |
| Margaret Williams, MS CCC SLP | 1437223096 | Speech-Language Pathologist | Taylorsville, UT | 2006 |
| Margaret Williams, MD | 1477713261 | Internal Medicine Physician | Norfolk, VA | 2008 |
| Margaret Williams, MS, RD | 1548439656 | Registered Dietitian | San Jose, CA | 2008 |
| Margaret Williams, RN | 1598043267 | Registered Nurse | Roseville, MN | 2011 |
| Margaret Williams, N.P. | 1609324631 | Family Nurse Practitioner | Cartersville, GA | 2016 |
| Margaret Williams, CRNA | 1619071701 | Certified Registered Nurse Anesthetist | Reading, PA | 2006 |
| Margaret Williams, PH.D. MA BSN RN CCM | 1659197051 | Registered Nurse | Fort Liberty, NC | 2024 |
| Margaret Williams, M.D. | 1780611384 | Psychiatry Physician | Laredo, TX | 2006 |
| Margaret Williams, LMSW | 1780876946 | Clinical Social Worker | Frederick, MD | 2007 |
| Margaret Williams | 1790182442 | Speech-Language Pathologist | Fort Mill, SC | 2014 |
| Margaret Williams | 1821601394 | Marriage & Family Therapist | Fresno, CA | 2020 |
| Margaret Williams, DNP(C) CRNP, OCN | 1831553585 | Nurse Practitioner | Easton, MD | 2016 |
| Margaret Williams, ARNP | 1841705563 | Adult Health Nurse Practitioner | Kissimmee, FL | 2017 |
| Margaret Williams | 1861848921 | Athletic Trainer | Birmingham, AL | 2016 |
| Margaret Williams | 1871174904 | Clinical Social Worker | Chicago, IL | 2021 |
| Margaret Williams | 1891627139 | Behavior Technician | Lutz, FL | 2026 |
| Margaret Williams | 1912692559 | Social Worker | Boston, MA | 2023 |
| Margaret Williams, RN | 1942458757 | Registered Nurse | Bear, DE | 2008 |
| Margaret Williams, M.D. | 1952664575 | Hospitalist Physician | Columbus, OH | 2012 |
| Margaret Williams | 1972048866 | Doula | Scottsville, VA | 2016 |
| Margaret-Mary Williams, MD | 1992792055 | Internal Medicine Physician | Brockton, MA | 2005 |
| Margarethe Williams, MD | 1609069749 | Internal Medicine Physician | Memphis, TN | 2007 |
| Margarette Williams, ED.D, CCC | 1154562486 | Speech-Language Pathologist | Pine Bluff, AR | 2009 |
| Margarita Williams | 1073817003 | Mental Health Counselor | Plainville, CT | 2011 |
| Margarita Williams | 1699380881 | Case Manager/Care Coordinator | Austin, TX | 2020 |
| Marge Williams | 1740062355 | Behavior Technician | Charlotte, NC | 2023 |
| Margerine Williams | 1144244229 | Contractor | Houston, TX | 2006 |
| Margery Williams, RN, IBCLC | 1164244414 | Lactation Consultant (Registered Nurse) | Troy, MI | 2024 |
| Margery Williams, PA-C | 1619193984 | Physician Assistant | Vancouver, WA | 2007 |
| Margie Williams, PMHNP | 1194461434 | Psychiatric/Mental Health Nurse Practitioner | Lacey, WA | 2022 |
| Margie Williams | 1952089104 | Personal Care Attendant | Charleston, WV | 2023 |
| Margo Williams | 1023522000 | Counselor | Baton Rouge, LA | 2017 |
| Margo Williams, CO, LO, CLT-LANA | 1366401655 | Orthotist | Coppell, TX | 2006 |
| Margo Williams | 1801502802 | Surgical Critical Care Physician | Dayton, OH | 2023 |
| Margo Williams, LPN | 1811881436 | Licensed Practical Nurse | Las Vegas, NV | 2025 |
| Margo Williams, LMT | 1831884592 | Massage Therapist | Saint Charles, MO | 2023 |
| Margot Williams, OD | 1497064604 | Optometrist | Port Angeles, WA | 2010 |
| Margot Williams, LMSW | 1528497021 | Social Worker | Houston, TX | 2013 |
| Margot Williams, PH.D. | 1871265231 | Clinical Psychologist | Raleigh, NC | 2021 |
| Margot Williams, MSW | 1871899948 | Clinical Social Worker | Cleveland, OH | 2011 |
| Margretta Williams | 1356276455 | Assistant Behavior Analyst | Gaithersburg, MD | 2026 |
| Marguerite Williams | 1255918330 | Assistant Behavior Analyst | Corona, CA | 2021 |
| Marguerite Williams | 1265633226 | Addiction (Substance Use Disorder) Counselor | Newark, CA | 2007 |
| Marguerite Williams, ANP | 1871688770 | Adult Health Nurse Practitioner | Utica, NY | 2006 |
| Maria Williams, PTA | 1043427149 | Physical Therapy Assistant | Tacoma, WA | 2007 |
| Maria Williams | 1073468856 | Nurse's Aide | Omaha, NE | 2026 |
| Maria Williams | 1093131849 | Community Health Worker | Woonsocket, RI | 2014 |
| Maria Williams | 1104689413 | Behavior Technician | Escondido, CA | 2024 |
| Maria Williams, APRN | 1104784834 | Psychiatric/Mental Health Nurse Practitioner | Chicago, IL | 2026 |
| Maria Williams, LCSW | 1114940863 | Mental Health Counselor | Santa Maria, CA | 2006 |
| Maria Williams | 1134009327 | Family Nurse Practitioner | Douglas, GA | 2025 |
| Maria Williams, R.N. | 1134391766 | Registered Nurse | Middle Island, NY | 2008 |
| Maria Williams, APRN | 1134501117 | Primary Care Nurse Practitioner | Polson, MT | 2015 |
| Maria Williams, LMSW | 1255884169 | Clinical Social Worker | Battle Creek, MI | 2016 |
| Maria Williams, PH.D. | 1265561492 | School Psychologist | Zuni, NM | 2007 |
| Maria Williams | 1316222458 | Marriage & Family Therapist | San Fernando, CA | 2011 |
| Maria Williams, PT | 1346680287 | Physical Therapist | Ocala, FL | 2013 |
| Maria Williams, MD | 1396487252 | Student in an Organized Health Care Education/Training Program | Roanoke, VA | 2022 |
| Maria Williams, NP | 1427508522 | Nurse Practitioner | Morgan City, LA | 2016 |
| Maria Williams, PTA | 1487159729 | Physical Therapy Assistant | Burleson, TX | 2018 |
| Maria Williams | 1508622697 | Home Health Aide | Cleveland, OH | 2024 |
| Maria Williams | 1518716703 | Clinical Social Worker | Fairfax, VA | 2024 |
| Maria Williams, LVN | 1518760040 | Licensed Vocational Nurse | Tulare, CA | 2025 |
| Maria Williams | 1528147717 | Rehabilitation Practitioner | Compton, CA | 2006 |
| Maria Williams, OTR/L | 1558727818 | Occupational Therapist | Madison, FL | 2016 |
| Maria Williams, PH.D | 1609311505 | Mental Health Counselor | Baton Rouge, LA | 2016 |
| Maria Williams, FNP | 1619446572 | Family Nurse Practitioner | Mahwah, NJ | 2018 |
| Maria Williams, APN | 1649117755 | Psychiatric/Mental Health Nurse Practitioner | Belle Mead, NJ | 2026 |
| Maria Williams, RN, IBCLC | 1649785510 | Registered Nurse | San Francisco, CA | 2017 |
| Maria Williams | 1669508552 | Occupational Therapist | Parkersburg, WV | 2007 |
| Maria Williams | 1679462873 | Home Health Aide | La Vista, NE | 2025 |
| Maria Williams, HIV TESTING COORD | 1679626501 | Addiction (Substance Use Disorder) Counselor | Brooklyn, NY | 2007 |
| Maria Williams, APRN, FNP-BC | 1699218495 | Family Nurse Practitioner | Harlingen, TX | 2016 |
| Maria Williams, PH.D., LMHC, SUDP | 1710417084 | Mental Health Counselor | Lacey, WA | 2017 |
| Maria Williams, LPC | 1720432263 | Professional Counselor | Allen, TX | 2016 |
| Maria Williams | 1730457920 | Personal Care Attendant | Davie, FL | 2011 |
| Maria Williams | 1750195863 | Personal Care Attendant | Morgantown, WV | 2025 |
| Maria Williams, CRNA | 1770743361 | Certified Registered Nurse Anesthetist | Oklahoma City, OK | 2008 |
| Maria Williams | 1780342758 | Home Health Aide | Las Vegas, NV | 2021 |
| Maria Williams | 1801472147 | Behavior Technician | Spring, TX | 2021 |
| Maria Williams | 1831029164 | Personal Care Attendant | Washington, DC | 2026 |
| Maria Williams | 1831716125 | Behavior Analyst | Las Vegas, NV | 2020 |
| Maria Williams, OD | 1871052340 | Optometrist | Pleasanton, CA | 2019 |
| Maria Williams | 1922876739 | Speech-Language Assistant | Midwest City, OK | 2023 |
| Maria Williams, MA LPC | 1952188609 | Professional Counselor | Newton, NJ | 2023 |
| Maria Williams, CNA | 1972078137 | Nurse's Aide | San Antonio, TX | 2018 |
| Maria Alexis Williams, LMSW | 1346548955 | Behavior Analyst | New York, NY | 2011 |
| Mariaah Williams, M.D. | 1881074763 | Family Medicine Physician | Daytona Beach, FL | 2015 |
| Mariaelena Williams | 1710415237 | Anesthesiology Physician | Kansas City, KS | 2017 |
| Mariah Williams | 1013724913 | Student in an Organized Health Care Education/Training Program | Tuscaloosa, AL | 2024 |
| Mariah Williams | 1043084262 | Behavior Technician | El Dorado Hills, CA | 2023 |
| Mariah Williams | 1144148479 | Registered Nurse | Stow, OH | 2026 |
| Mariah Williams | 1154084747 | Case Manager/Care Coordinator | Baton Rouge, LA | 2021 |
| Mariah Williams | 1245823681 | Speech-Language Pathologist | Yuma, AZ | 2021 |
| Mariah Williams | 1295440063 | Behavior Technician | Honolulu, HI | 2023 |
| Mariah Williams, LMSW | 1306365317 | Social Worker | Little Rock, AR | 2017 |
| Mariah Williams | 1316627995 | Case Manager/Care Coordinator | Weatherford, OK | 2023 |
| Mariah Williams, LMT | 1356239388 | Massage Therapist | Eugene, OR | 2025 |
| Mariah Williams | 1356296529 | Behavior Technician | Brockton, MA | 2026 |
| Mariah Williams | 1396113940 | Mental Health Counselor | Gainesville, FL | 2015 |
| Mariah Williams | 1427938851 | Behavior Technician | Farmington Hills, MI | 2025 |
| Mariah Williams | 1497597306 | Physician Assistant | Liberty, NC | 2024 |
| Mariah Williams, PHARMD | 1598630329 | Pharmacist | Clinton, MS | 2025 |
| Mariah Williams | 1619834751 | Behavior Technician | Pikesville, MD | 2026 |
| Mariah Williams | 1639950298 | Behavior Technician | Irving, TX | 2023 |
| Mariah Williams | 1699573162 | Peer Specialist | Ammon, ID | 2025 |
| Mariah Williams | 1710781729 | Behavior Technician | Farmington Hills, MI | 2025 |
| Mariah Williams | 1750927307 | Driver | Bay City, TX | 2019 |
| Mariah Williams | 1790309359 | Behavior Technician | Concord, CA | 2020 |
| Mariah Williams | 1831650464 | Case Manager/Care Coordinator | Fort Myers, FL | 2019 |
| Mariah Williams | 1851870851 | Student in an Organized Health Care Education/Training Program | Caribou, ME | 2018 |
| Mariah Williams, PA-C | 1982173167 | Physician Assistant | Columbus, GA | 2018 |
| Mariah Williams | 1992563779 | Professional Counselor | Bensalem, PA | 2024 |
| Marial Williams | 1245167923 | Occupational Therapist | Chicago, IL | 2026 |
| Mariam Williams | 1285185900 | Other Technician | Detroit, MI | 2016 |
| Mariama Williams | 1205342862 | Behavior Technician | Forest Hills, NY | 2017 |
| Marian Williams, P.T. | 1104375534 | Physical Therapist | New York, NY | 2016 |
| Marian Williams, LPN | 1386859213 | Licensed Practical Nurse | Yorktown Heights, NY | 2007 |
| Marian Williams | 1669393740 | Personal Care Attendant | Mount Nebo, WV | 2026 |
| Marian Williams, PH.D. | 1689711202 | Clinical Psychologist | Los Angeles, CA | 2007 |
| Marian Williams | 1902579386 | Rehabilitation Practitioner | Santa Rosa, CA | 2021 |
| Marianeta Williams, LMSW | 1861978397 | Social Worker | Brooklyn, NY | 2018 |
| Mariann Williams | 1245025295 | Specialist | Aurora, CO | 2025 |
| Mariann Williams, NP | 1922166776 | Nurse Practitioner | Tonasket, WA | 2006 |
| Marianna Williams | 1487432779 | Behavior Technician | Sacramento, CA | 2023 |
| Marianne Williams | 1083078273 | Professional Counselor | Frenchburg, KY | 2016 |
| Marianne Williams, R.D. | 1457306706 | Registered Dietitian | Danville, PA | 2006 |
| Marianne Williams, LMT | 1699205096 | Massage Therapist | Naples, FL | 2017 |
| Marianne Williams, LMHC | 1841661295 | Mental Health Counselor | Palm Harbor, FL | 2015 |
| Marianne Williams | 1851519656 | Physical Therapist | Farmington Hills, MI | 2007 |
| Maribeth Williams, M.D. | 1487965265 | Family Medicine Physician | Greer, SC | 2010 |
| Maricha Williams | 1265279558 | Driver | Cincinnati, OH | 2024 |
| Maricia Williams | 1750824785 | Case Manager/Care Coordinator | Torrance, CA | 2016 |
| Marida Williams | 1659132017 | Registered Nurse | New Rochelle, NY | 2024 |
| Marida Williams, LMSW, LCSW | 1740633478 | Clinical Social Worker | Frisco, TX | 2016 |
| Maridythe Williams | 1669132312 | Case Manager/Care Coordinator | Indianapolis, IN | 2021 |
| Marie Williams, NP | 1073550273 | Obstetrics & Gynecology Nurse Practitioner | Jackson, MS | 2006 |
| Marie Williams, NP | 1093706780 | Nurse Practitioner | Carbondale, PA | 2005 |
| Marie Williams, BA | 1164139390 | Counselor | Alton, IL | 2022 |
| Marie Williams, LCSW | 1174539092 | Clinical Social Worker | Saint Louis, MO | 2006 |
| Marie Williams, CRNFA | 1245376839 | Registered Nurse First Assistant | Ormond Beach, FL | 2007 |
| Marie Williams, FNP | 1265783443 | Nurse Practitioner | Milwaukee, WI | 2012 |
| Marie Williams, CCSS | 1275050478 | Counselor | Hattiesburg, MS | 2017 |
| Marie Williams, DPM | 1336231638 | Podiatrist | Aventura, FL | 2006 |
| Marie Williams, LMP CCP | 1427137272 | Massage Therapist | Kirkland, WA | 2006 |
| Marie Williams, MA, ABD | 1568728525 | Behavior Technician | Maitland, FL | 2012 |
| Marie Williams | 1578165270 | Personal Care Attendant | Washington, DC | 2020 |
| Marie Williams, OTR | 1609998145 | Occupational Therapist | Minneapolis, MN | 2007 |
| Marie Williams, DDS, MS | 1639162563 | Periodontics | Maxwell Afb, AL | 2005 |
| Marie Williams, N.P. | 1659645489 | Adult Health Nurse Practitioner | Brooklyn, NY | 2012 |
| Marie Williams | 1710281241 | General Practice Registered Nurse | Kapolei, HI | 2010 |
| Marie Williams | 1720879554 | Athletic Trainer | Washington, DC | 2025 |
| Marie Williams, PH.D. | 1841322419 | Clinical Psychologist | Bogart, GA | 2007 |
| Marie Williams | 1871468496 | Counselor | Lakewood, CO | 2025 |
| Mariel Williams | 1659201408 | Physician Assistant | Gainesville, FL | 2026 |
| Mariesha Williams, RN | 1619744638 | Registered Nurse | Bronx, NY | 2023 |
| Mariesha Williams | 1770291338 | Behavior Technician | Stockton, CA | 2022 |
| Marietta Williams, DO | 1124816939 | Military Health Care Provider | Portsmouth, VA | 2025 |
| Marietta Williams, MS, CCC-SLP | 1376062422 | Speech-Language Pathologist | Napa, CA | 2017 |
| Marikia Williams | 1881241800 | Speech-Language Pathologist | La Plata, MD | 2019 |
| Marilea Williams, LMFT | 1730875907 | Marriage & Family Therapist | Manhattan, KS | 2023 |
| Marilou Williams, PHARMD, RPH | 1851831077 | Pharmacist | Sandusky, OH | 2017 |
| Marilyn Williams | 1023418209 | Nurse's Aide | Atlanta, GA | 2014 |
| Marilyn Williams | 1023552486 | Other Technician | Novi, MI | 2016 |
| Marilyn Williams, NP | 1043468234 | Family Nurse Practitioner | Greenville, MS | 2008 |
| Marilyn Williams | 1063003085 | Home Health Aide | Ashford, WV | 2021 |
| Marilyn Williams, AGPCNP | 1073385704 | Primary Care Nurse Practitioner | Portsmouth, VA | 2023 |
| Marilyn Williams, LCSW | 1144743535 | Clinical Social Worker | Orange, CT | 2017 |
| Marilyn Williams, LPC | 1184985020 | Professional Counselor | Lake Charles, LA | 2012 |
| Marilyn Williams, LCSW | 1215064936 | Clinical Social Worker | Atlanta, GA | 2007 |
| Marilyn Williams | 1245758101 | Registered Respiratory Therapist | Torrance, CA | 2017 |
| Marilyn Williams, WHNP | 1306894209 | Women's Health Nurse Practitioner | Irving, TX | 2006 |
| Marilyn Williams, RDN, LDN | 1336545813 | Registered Dietitian | Greenville, NC | 2014 |
| Marilyn Williams | 1427310903 | Specialist | Brooklyn, NY | 2012 |
| Marilyn Williams | 1477068898 | Behavior Technician | Novi, MI | 2017 |
| Marilyn Williams, MS, RN | 1497972822 | Gerontology Registered Nurse | San Francisco, CA | 2007 |
| Marilyn Williams, MD | 1508812231 | Addiction Medicine (Family Medicine) Physician | Brighton, MI | 2006 |
| Marilyn Williams | 1598229007 | Case Manager/Care Coordinator | Cleveland, OH | 2019 |
| Marilyn Williams, MSW | 1629265707 | Clinical Social Worker | Memphis, TN | 2007 |
| Marilyn Williams | 1689598120 | Counselor | Oak Lawn, IL | 2026 |
| Marilyn Williams, MSW, LCSW | 1689897688 | Clinical Social Worker | Fairfax, VA | 2007 |
| Marilyn Williams, LMT | 1710284138 | Massage Therapist | Cedar City, UT | 2011 |
| Marilyn Williams, PSYCHOLOGIST | 1720100514 | Psychologist | New York, NY | 2007 |
| Marilyn Williams, NP | 1760673347 | Perinatal Nurse Practitioner | Torrance, CA | 2007 |
| Marilyn Williams, LCSW | 1861647471 | Social Worker | Slidell, LA | 2008 |
| Marilyn Williams, NP | 1881655728 | Nurse Practitioner | Blue Ridge, GA | 2006 |
| Marilyn Williams, RN | 1932394350 | Registered Nurse | Waverly, OH | 2007 |
| Marilyn Williams, NP | 1962402602 | Women's Health Nurse Practitioner | Oakland, CA | 2005 |
| Marilyn Denice Williams, FNP | 1467166744 | Family Nurse Practitioner | Montgomery, AL | 2023 |
| Marim Williams, APRN | 1487289997 | Nurse Practitioner | Port Charlotte, FL | 2020 |
| Marin Williams | 1003540030 | Speech-Language Pathologist | Forest Hill, TX | 2022 |
| Marin Williams, DPT | 1740974740 | Physical Therapist | Sandy, UT | 2023 |
| Marina Williams | 1073449781 | Adult Companion | Elk Grove, CA | 2026 |
| Marina Williams, CRNA | 1104854397 | Certified Registered Nurse Anesthetist | Tuscaloosa, AL | 2006 |
| Marina Williams, LMHC, LPC | 1912106980 | Mental Health Counselor | Lexington, VA | 2007 |
| Marina Williams, MA, MHPP | 1912275355 | Mental Health Counselor | Pine Bluff, AR | 2011 |
| Mario Williams, BA | 1205046125 | Case Manager/Care Coordinator | Memphis, TN | 2007 |
| Mario Williams, LAC | 1669268256 | Addiction (Substance Use Disorder) Counselor | Wichita, KS | 2025 |
| Marion Williams | 1073960779 | General Practice Dentistry | La Plata, MD | 2016 |
| Marion Williams, MD | 1205086253 | Psychiatry Physician | San Antonio, TX | 2008 |
| Marion Williams | 1225708977 | Addiction (Substance Use Disorder) Counselor | Baltimore, MD | 2021 |
| Marion Williams, OPTOMETRIST | 1710969969 | Optometrist | Williamston, SC | 2005 |
| Marion Williams, LPC | 1891361804 | Professional Counselor | Brookfield, CT | 2021 |
| Maris Williams, LCMHC | 1811619356 | Mental Health Counselor | Matthews, NC | 2022 |
| Marisa Williams | 1033532767 | Social Worker | Louisville, KY | 2014 |
| Marisa Williams, MSN, NNP-BC | 1033862149 | Neonatal Nurse Practitioner | Aurora, CO | 2022 |
| Marisa Williams, OTR/L | 1194248567 | Occupational Therapist | Framingham, MA | 2017 |
| Marisa Williams, LLMSW-C | 1417694456 | Clinical Social Worker | Portage, MI | 2022 |
| Marisa Williams | 1619757697 | Community Health Worker | Oakland, CA | 2023 |
| Marisa Joy Williams | 1033520846 | Developmental Therapist | Deerfield Beach, FL | 2014 |
| Marisha Williams | 1629874342 | Oncology Registered Nurse | Oklahoma City, OK | 2025 |
| Mariska Williams, REGISTERED NURSE | 1831575950 | Registered Nurse | Clinton, MD | 2015 |
| Marissa Williams, RN | 1073069217 | Ambulatory Care Registered Nurse | Fort Rucker, AL | 2016 |
| Marissa Williams, M.A, LPC, CCTP | 1124770805 | Professional Counselor | North Chesterfield, VA | 2022 |
| Marissa Williams | 1235066218 | Adult Companion | Bellevue, NE | 2026 |
| Marissa Williams | 1235776139 | Assistant Behavior Analyst | Irvine, CA | 2019 |
| Marissa Williams, DNP, AGPCNP-BC | 1265012223 | Nurse Practitioner | Birmingham, AL | 2021 |
| Marissa Williams | 1275208464 | Behavior Technician | Temecula, CA | 2021 |
| Marissa Williams, LPCC | 1396464459 | Mental Health Counselor | Highlands Ranch, CO | 2022 |
| Marissa Williams | 1427994342 | Registered Nurse | Chicago, IL | 2026 |
| Marissa Williams | 1558040733 | Social Worker | View Park, CA | 2023 |
| Marissa Williams | 1558229617 | Behavior Technician | Modesto, CA | 2026 |
| Marissa Williams | 1558833723 | Massage Therapist | Federal Way, WA | 2018 |
| Marissa Williams, LMFT | 1679703029 | Counselor | Rocklin, CA | 2009 |
| Marissa Williams, D.M.D | 1720394976 | General Practice Dentistry | Pleasanton, TX | 2010 |
| Marissa Williams | 1801453972 | Mental Health Counselor | Tigard, OR | 2019 |
| Marissa Williams, LPN | 1841534286 | Technician | New York, NY | 2012 |
| Marissa Williams, PA-C | 1851688873 | Physician Assistant | Zephyrhills, FL | 2011 |
| Marissa Williams | 1912771908 | Peer Specialist | Tulsa, OK | 2023 |
| Marissa Williams, AGNP-C | 1922970029 | Nurse Practitioner | Goffstown, NH | 2025 |
| Marissa Williams, AU.D. | 1932364981 | Audiologist | Houston, TX | 2008 |
| Marissa Williams | 1992295737 | Certified Registered Nurse Anesthetist | Temple, TX | 2018 |
| Marita Williams | 1124328802 | Behavior Analyst | Southampton, PA | 2010 |
| Maritza Williams | 1013472505 | Behavior Technician | Anaheim, CA | 2019 |
| Maritza Williams | 1326827940 | Massage Therapist | Costa Mesa, CA | 2023 |
| Mariyah Williams | 1174394035 | Behavior Technician | Riverside, CA | 2024 |
| Mariyah Williams, SLP | 1184438772 | Speech-Language Pathologist | Fayetteville, GA | 2025 |
| Marizol Williams | 1366980328 | Counselor | Yakima, WA | 2017 |
| Marjenia Williams, PMHNP-BC | 1609181478 | Psychiatric/Mental Health Nurse Practitioner | Reidsville, NC | 2010 |
| Marjorie Williams, MC, LISAC, LPC | 1013146521 | Professional Counselor | Tucson, AZ | 2009 |
| Marjorie Williams, COTA/L | 1083426209 | Occupational Therapy Assistant | Tarpon Springs, FL | 2025 |
| Marjorie Williams, APRN, PC | 1093870701 | Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist | Springfield, MA | 2006 |
| Marjorie Williams | 1124763701 | Speech-Language Pathologist | Thornton, CO | 2022 |
| Marjorie Williams | 1184110355 | Behavior Technician | Centennial, CO | 2018 |
| Marjorie Williams, RNBC | 1386496693 | Addiction (Substance Use Disorder) Registered Nurse | Marlborough, NH | 2024 |
| Marjorie Williams, DDS | 1487932026 | General Practice Dentistry | Denver, CO | 2011 |
| Marjorie Williams | 1528697927 | Addiction (Substance Use Disorder) Counselor | Mount Vernon, OH | 2020 |
| Marjorie Williams | 1588936397 | Counselor | Rogers, AR | 2012 |
| Marjorie Williams, NP | 1619075082 | Family Nurse Practitioner | Miami Beach, FL | 2006 |
| Marjorie Williams, PHYSICAL THERAPIST | 1881885010 | Physical Therapist | Farmville, VA | 2007 |
| Mark Williams, RPH | 1003103631 | Pharmacist | Medford, OR | 2011 |
| Mark Williams, PMHNP-BC | 1023786225 | Psychiatric/Mental Health Nurse Practitioner | Mesa, AZ | 2021 |
| Mark Williams, MD | 1033114988 | Internal Medicine Physician | Johnson City, TN | 2005 |
| Mark Williams, DC | 1033445655 | Chiropractor | South Portland, ME | 2009 |
| Mark Williams | 1043412778 | Counselor | Columbia, TN | 2007 |
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).