Providers Mark Williams to Mary Williams, NP-C
300 individual NPIs in the federal registry, part 23,618 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. 83 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Mark Williams | 1073012969 | General Practice Dentistry | Pearland, TX | 2018 |
| Mark Williams, M.D. | 1104820828 | Otolaryngology Physician | Lutherville, MD | 2005 |
| Mark Williams, D.O. | 1114961166 | Sports Medicine (Family Medicine) Physician | Nampa, ID | 2006 |
| Mark Williams | 1134828700 | Attendant Care Provider | Grovetown, GA | 2023 |
| Mark Williams, M.D. | 1174590947 | Anesthesiology Physician | Longview, TX | 2006 |
| Mark Williams | 1184541849 | Hearing Instrument Specialist | Chillicothe, OH | 2026 |
| Mark Williams, MD | 1184653891 | Nephrology Physician | Boston, MA | 2006 |
| Mark Williams | 1215522602 | Addiction (Substance Use Disorder) Counselor | Chicago, IL | 2021 |
| Mark Williams, LPT | 1215692686 | Licensed Psychiatric Technician | Santa Maria, CA | 2021 |
| Mark Williams, D.O. | 1215920186 | Family Medicine Physician | Scottdale, PA | 2005 |
| Mark Williams, MD | 1235284225 | Diagnostic Radiology Physician | Bakersfield, CA | 2007 |
| Mark Williams | 1245846476 | Music Therapist | Anchorage, AK | 2020 |
| Mark Williams, PA-C | 1255369765 | Physician Assistant | Salem, OR | 2006 |
| Mark Williams, RPH | 1255511515 | Pharmacist | East Meadow, NY | 2007 |
| Mark Williams, PA | 1265742662 | Physician Assistant | Medford, OR | 2010 |
| Mark Williams, SURGICAL ASSISTANT | 1275133340 | Surgical Physician Assistant | Corpus Christi, TX | 2020 |
| Mark Williams, MD | 1275645806 | Emergency Medicine Physician | Northport, NY | 2006 |
| Mark Williams, MBBS | 1295178242 | Anesthesiology Physician | Rochester, NY | 2013 |
| Mark Williams, MD | 1295760601 | Orthopaedic Surgery Physician | Fresno, CA | 2006 |
| Mark Williams, MS OTR/L | 1306139902 | Occupational Therapist | Colonial Heights, VA | 2011 |
| Mark Williams, M.D | 1306919584 | Psychiatry Physician | Pomona, CA | 2006 |
| Mark Williams, LPN | 1316811979 | Licensed Practical Nurse | Peoria, IL | 2025 |
| Mark Williams, O.D. | 1316917842 | Optometrist | Redondo Beach, CA | 2006 |
| Mark Williams, M.D. | 1326198623 | Family Medicine Physician | Eau Claire, WI | 2007 |
| Mark Williams, M.D. | 1336170869 | Emergency Medicine Physician | San Diego, CA | 2006 |
| Mark Williams, D.C. | 1336211747 | Chiropractor | Cleveland, TN | 2006 |
| Mark Williams, QMHS | 1346106622 | Case Manager/Care Coordinator | Toledo, OH | 2025 |
| Mark Williams, LPC | 1366827008 | Professional Counselor | Fort Worth, TX | 2015 |
| Mark Williams, MSW | 1376958207 | Clinical Social Worker | Chapel Hill, NC | 2014 |
| Mark Williams | 1386156230 | Licensed Vocational Nurse | Chico, CA | 2017 |
| Mark Williams, MD | 1386713923 | Geriatric Medicine (Internal Medicine) Physician | Wilmington, NC | 2006 |
| Mark Williams, RPH | 1396024790 | Pharmacist | Eugene, OR | 2011 |
| Mark Williams, MD, PHD | 1417986001 | Surgery Physician | Muscatine, IA | 2006 |
| Mark Williams, PTA | 1427435858 | Physical Therapy Assistant | Talbott, TN | 2015 |
| Mark Williams, CRNA | 1447380258 | Certified Registered Nurse Anesthetist | Melbourne, FL | 2007 |
| Mark Williams, MD | 1447663679 | Obstetrics & Gynecology Physician | Lawrenceville, GA | 2014 |
| Mark Williams, DDS | 1467664524 | Prosthodontics | Anchorage, AK | 2007 |
| Mark Williams | 1467916932 | Behavior Technician | Okemos, MI | 2019 |
| Mark Williams, DO | 1477554624 | Orthopaedic Surgery Physician | Bloomsburg, PA | 2005 |
| Mark Williams | 1487213278 | Mental Health Counselor | Snellville, GA | 2019 |
| Mark Williams, O.D. | 1508947276 | Optometrist | West Lafayette, IN | 2006 |
| Mark Williams, O.D. | 1518015759 | Low Vision Rehabilitation Optometrist | Burton, MI | 2007 |
| Mark Williams, DPM | 1528087293 | Foot & Ankle Surgery Podiatrist | Olympia, WA | 2006 |
| Mark Williams, D.C. | 1538291737 | Chiropractor | Dayton, OH | 2007 |
| Mark Williams | 1578241949 | Mental Health Counselor | Deland, FL | 2023 |
| Mark Williams, LCMHC | 1578663795 | Mental Health Counselor | South Burlington, VT | 2006 |
| Mark Williams, D.D.S. | 1578723342 | Dentist | Mc Kenzie, TN | 2008 |
| Mark Williams, DPT | 1578731527 | Physical Therapist | New York, NY | 2008 |
| Mark Williams, M.D. | 1588602601 | Anesthesiology Physician | Birmingham, AL | 2006 |
| Mark Williams, CADC III/LPC | 1598065807 | Mental Health Counselor | Bend, OR | 2010 |
| Mark Williams, PHD | 1619998416 | Clinical Psychologist | Altamonte Springs, FL | 2006 |
| Mark Williams, MD | 1629143144 | Surgery Physician | Payson, AZ | 2006 |
| Mark Williams, LMT | 1629541750 | Massage Therapist | Cornwall, NY | 2019 |
| Mark Williams, MD | 1639378029 | Student in an Organized Health Care Education/Training Program | Richmond, VA | 2007 |
| Mark Williams, PNHNP-BC | 1639847049 | Psychiatric/Mental Health Nurse Practitioner | Reno, NV | 2021 |
| Mark Williams | 1639983000 | Personal Care Attendant | Washington, DC | 2025 |
| Mark Williams, DMD | 1659451938 | General Practice Dentistry | Meridian, MS | 2006 |
| Mark Williams, MD | 1659461564 | Pulmonary Disease Physician | Indianapolis, IN | 2006 |
| Mark Williams, R.PH. | 1659608594 | Pharmacist | Alvin, TX | 2009 |
| Mark Williams, DPM | 1669575478 | Foot & Ankle Surgery Podiatrist | Davison, MI | 2006 |
| Mark Williams, MD | 1679505440 | Anesthesiology Physician | Dallas, TX | 2006 |
| Mark Williams | 1679837017 | Pharmacist | Hickory, NC | 2012 |
| Mark Williams, DMD | 1699095679 | Dentist | Denton, TX | 2010 |
| Mark Williams, PMHNP-BC | 1699696401 | Psychiatric/Mental Health Nurse Practitioner | Marietta, GA | 2026 |
| Mark Williams, DC | 1699847103 | Chiropractor | Centralia, IL | 2006 |
| Mark Williams, PH.D. | 1699922112 | Clinical Neuropsychologist | Patton, CA | 2008 |
| Mark Williams, RPH | 1700047081 | Pharmacist | Scranton, PA | 2008 |
| Mark Williams, MD | 1700859873 | Family Medicine Physician | Lafayette, IN | 2006 |
| Mark Williams, M.D. | 1710179585 | Internal Medicine Physician | Louisville, KY | 2007 |
| Mark Williams, M.D. | 1710971866 | Surgery Physician | Rome, NY | 2005 |
| Mark Williams, MED., BCBA | 1720402696 | Behavior Analyst | Peabody, MA | 2014 |
| Mark Williams | 1720890551 | Mental Health Counselor | Prestonsburg, KY | 2025 |
| Mark Williams, DDS | 1730240961 | General Practice Dentistry | Indianapolis, IN | 2006 |
| Mark Williams, CRNA | 1750306775 | Certified Registered Nurse Anesthetist | Oklahoma City, OK | 2006 |
| Mark Williams, LCSW | 1760560072 | Clinical Social Worker | Windham, ME | 2006 |
| Mark Williams, MD | 1770558702 | Nephrology Physician | Winter Park, FL | 2006 |
| Mark Williams, MD | 1770661530 | Emergency Medicine Physician | Santa Rosa, CA | 2006 |
| Mark Williams, M.D. | 1780118802 | Retina Specialist (Ophthalmology) Physician | Orange, CA | 2017 |
| Mark Williams | 1780418483 | Case Manager/Care Coordinator | Choctaw, OK | 2024 |
| Mark Williams | 1801727961 | Interpreter | Greeley, CO | 2026 |
| Mark Williams, O.D. | 1801803689 | Optometrist | Portland, OR | 2006 |
| Mark Williams, PH.D. | 1801839204 | Clinical Neuropsychologist | Mount Pleasant, SC | 2006 |
| Mark Williams, M.D. | 1801852942 | Family Medicine Physician | Mountain Home, AR | 2006 |
| Mark Williams, PH.D. | 1811020076 | Psychologist | Dallas, TX | 2007 |
| Mark Williams, MA | 1811361777 | Case Manager/Care Coordinator | Gautier, MS | 2015 |
| Mark Williams, M.D. | 1811967367 | Psychiatry Physician | Rochester, MN | 2006 |
| Mark Williams, DMD | 1821105867 | General Practice Dentistry | Mahomet, IL | 2006 |
| Mark Williams, D.O. | 1821484163 | Orthopaedic Surgery Physician | Rockingham, VA | 2015 |
| Mark Williams, D.C. | 1841590361 | Chiropractor | Orlando, FL | 2010 |
| Mark Williams, LCSW | 1851389910 | Clinical Social Worker | Indianapolis, IN | 2005 |
| Mark Williams, MD | 1851496392 | Pediatric Urology Physician | Charlotte, NC | 2006 |
| Mark Williams, PA-C | 1861649642 | Medical Physician Assistant | Berlin, MD | 2008 |
| Mark Williams, LEAD RRT | 1871278820 | Critical Care Registered Respiratory Therapist | Richmond, VA | 2023 |
| Mark Williams, MD | 1891894408 | Family Medicine Physician | Beavercreek, OH | 2006 |
| Mark Williams, OD | 1922840149 | Optometrist | Denver, CO | 2024 |
| Mark Williams, M.D. | 1932183951 | Maternal & Fetal Medicine Physician | Fort Myers, FL | 2005 |
| Mark Williams | 1932843679 | Student in an Organized Health Care Education/Training Program | Miami, FL | 2022 |
| Mark Williams, MD | 1942564281 | Family Medicine Physician | Redmond, OR | 2012 |
| Mark Williams, LISW,LCSW,LADAC | 1952383762 | Clinical Social Worker | Las Cruces, NM | 2005 |
| Mark Williams, M.D. | 1952446015 | Anatomic Pathology & Clinical Pathology Physician | Richmond, VA | 2007 |
| Mark Williams, MD | 1962425819 | Hospitalist Physician | Saint Louis, MO | 2006 |
| Mark Williams, LSW, LICDC | 1962994111 | Social Worker | Cleveland, OH | 2018 |
| Mark Williams, D.C. | 1972590321 | Chiropractor | Fort Worth, TX | 2005 |
| Mark Williams, MD, PHD | 1972722288 | Otolaryngology Physician | Nashville, TN | 2007 |
| Markeal Williams | 1306528344 | Behavior Technician | Sterling Heights, MI | 2023 |
| Markeeya Williams | 1699571281 | Case Manager/Care Coordinator | Little Rock, AR | 2025 |
| Markeisha Williams | 1639022528 | Behavior Technician | Baltimore, MD | 2026 |
| Markeisha Williams | 1841988607 | Hearing Instrument Specialist | Grand Rapids, MI | 2023 |
| Markesha Williams, LCSW | 1285116475 | Clinical Social Worker | Evergreen Park, IL | 2018 |
| Markesha Williams, QBHS | 1861338162 | Case Manager/Care Coordinator | West Chester, OH | 2026 |
| Markethia Williams | 1649014721 | Behavior Technician | Atlanta, GA | 2024 |
| Markise Williams | 1558211060 | Behavior Technician | Idaho Falls, ID | 2026 |
| Markisha Williams | 1346846383 | Phlebotomy Technician | Owings Mills, MD | 2020 |
| Markita Williams, LN | 1578957619 | Licensed Practical Nurse | Galloway, OH | 2015 |
| Marla Williams | 1033764881 | Clinical Social Worker | Anna, IL | 2019 |
| Marla Williams | 1154283802 | Student in an Organized Health Care Education/Training Program | Gahanna, OH | 2025 |
| Marla Williams, NURSE PRACTITIONER | 1326185125 | Family Nurse Practitioner | Fort Gordon, GA | 2007 |
| Marla Williams | 1730607573 | Speech-Language Pathologist | Austin, TX | 2017 |
| Marlaina Williams, LVN | 1447415120 | Licensed Vocational Nurse | Visalia, CA | 2008 |
| Marlana Williams | 1891524302 | Behavior Technician | El Paso, TX | 2024 |
| Marlee Williams, DC | 1174390371 | Chiropractor | Wauwatosa, WI | 2023 |
| Marlee Williams | 1427995059 | Behavior Technician | Whitesburg, TN | 2026 |
| Marleen Williams, PH.D | 1851765036 | Clinical Psychologist | Orem, UT | 2015 |
| Marleen Williams, LPN | 1912386921 | Licensed Practical Nurse | Cincinnati, OH | 2015 |
| Marlena Williams | 1821706409 | Behavior Technician | Gallipolis, OH | 2022 |
| Marlencia Williams, LICSW | 1215687934 | Clinical Social Worker | Tukwila, WA | 2022 |
| Marlene Williams | 1114309598 | Counselor | Bartow, FL | 2015 |
| Marlene Williams, M.D. | 1164450599 | Cardiovascular Disease Physician | Baltimore, MD | 2006 |
| Marlene Williams, REGISTERED NURSE | 1407547862 | Case Management Registered Nurse | Dallas, TX | 2023 |
| Marlene Williams | 1427774041 | Clinical Social Worker | Baltimore, MD | 2022 |
| Marlene Williams, PH.D. | 1548885296 | Psychologist | Sachse, TX | 2020 |
| Marlene Williams | 1699342121 | Marriage & Family Therapist | Tustin, CA | 2021 |
| Marlene Williams, MT-BC | 1720267164 | Music Therapist | Havertown, PA | 2007 |
| Marlene Williams, PT | 1730233727 | Physical Therapist | Newington, CT | 2007 |
| Marlene Williams | 1780853556 | Mental Health Counselor | Denver, CO | 2008 |
| Marlene Williams, CACII | 1902144132 | Addiction (Substance Use Disorder) Counselor | Winnsboro, SC | 2013 |
| Marlene Williams | 1972332054 | Personal Care Attendant | Tioga, WV | 2024 |
| Marli Williams | 1376307793 | Peer Specialist | Whitehall, OH | 2024 |
| Marli Williams | 1609612241 | Case Manager/Care Coordinator | Ardmore, OK | 2024 |
| Marlina Williams, LMT | 1336448570 | Massage Therapist | Dallas, TX | 2011 |
| Marlo Williams | 1174981104 | Family Nurse Practitioner | West Memphis, AR | 2016 |
| Marlo Williams | 1568168714 | Acute Care Nurse Practitioner | Milwaukee, WI | 2023 |
| Marlo Williams | 1871083808 | Behavior Technician | Pleasanton, CA | 2018 |
| Marlon Williams | 1023556586 | Physical Therapy Assistant | Wauwatosa, WI | 2017 |
| Marlon Williams | 1124564489 | Case Manager/Care Coordinator | Shreveport, LA | 2017 |
| Marlon Williams | 1235053166 | Social Worker | Tipton, IA | 2026 |
| Marlon Williams | 1427683440 | Behavior Analyst | Tampa, FL | 2020 |
| Marlon Williams, LMT | 1457888117 | Massage Therapist | Saint Charles, MO | 2017 |
| Marlon Williams, PHD, LPC, NCC, CPCS | 1609583368 | Mental Health Counselor | Atlanta, GA | 2022 |
| Marlon Williams | 1760175673 | Behavior Technician | Basehor, KS | 2023 |
| Marlon Williams, DC | 1801005699 | Chiropractor | Kingshill, VI | 2007 |
| Marlon Williams | 1902314677 | Behavior Analyst | Providence, RI | 2018 |
| Marlon Williams | 1962920835 | Mental Health Counselor | Homestead, FL | 2017 |
| Marlonie Williams | 1275368359 | Behavior Technician | Oakland, CA | 2024 |
| Marlyn Williams | 1447940945 | Massage Therapist | Casa Grande, AZ | 2023 |
| Marlyn Williams, HOME HEALTH AIDE | 1477897544 | Home Health Aide | Washington, DC | 2012 |
| Marneece Williams, MD | 1285949412 | Obstetrics & Gynecology Physician | Phoenix, AZ | 2010 |
| Marni Williams | 1962200469 | Behavior Technician | Coon Rapids, MN | 2025 |
| Marnie Williams, BCBA | 1497368104 | Behavior Analyst | Davis, CA | 2020 |
| Marny Williams, D.D.S. | 1144470097 | General Practice Dentistry | Gloucester, MA | 2008 |
| Marolyn Williams, RN | 1972212348 | Home Health Registered Nurse | Akron, OH | 2022 |
| Marqita Williams | 1487377883 | Phlebotomy Technician | Prince George, VA | 2022 |
| Marquavious Williams | 1053907709 | Behavior Technician | Lake Mary, FL | 2020 |
| Marqueda Williams, LMFT | 1730945437 | Marriage & Family Therapist | Minneapolis, MN | 2024 |
| Marquetta Williams | 1174485825 | Counselor | Akron, OH | 2025 |
| Marquetta Williams, LPN | 1427396662 | Licensed Practical Nurse | Bronx, NY | 2013 |
| Marquetta Williams, BSW,MA | 1760716856 | Counselor | Detroit, MI | 2009 |
| Marquezia Williams, BCBA | 1699443929 | Behavior Analyst | North Ridgeville, OH | 2021 |
| Marquina Williams | 1467122275 | Behavior Technician | Farmington Hills, MI | 2021 |
| Marquis Williams | 1558242313 | Counselor | San Francisco, CA | 2025 |
| Marquise Williams | 1740077643 | Doula | Saint Louis, MO | 2025 |
| Marquise Williams | 1881274082 | Home Health Aide | North Las Vegas, NV | 2021 |
| Marquisha Williams | 1003735390 | Health & Wellness Coach | Durham, NC | 2026 |
| Marquisha Williams | 1417773425 | Behavior Technician | Sterling Heights, MI | 2024 |
| Marquita Williams | 1063021012 | Home Health Aide | North Las Vegas, NV | 2020 |
| Marquita Williams | 1073230959 | Behavior Technician | Farmington Hills, MI | 2022 |
| Marquita Williams | 1275466740 | Behavior Technician | Rockville, MD | 2026 |
| Marquita Williams | 1427934249 | Pharmacist | Delray Beach, FL | 2025 |
| Marquita Williams, LPN | 1538775341 | Licensed Practical Nurse | Charlotte, NC | 2020 |
| Marquita Williams | 1558085340 | Behavior Technician | Pearland, TX | 2022 |
| Marquita Williams | 1558512194 | Student in an Organized Health Care Education/Training Program | Fairfield, CA | 2008 |
| Marquita Williams | 1669912127 | Family Nurse Practitioner | Collierville, TN | 2017 |
| Marquita Williams | 1831605005 | Behavior Analyst | Las Vegas, NV | 2017 |
| Marquita Williams | 1972457950 | Behavior Technician | Farmington Hills, MI | 2026 |
| Marquonna Williams | 1043943095 | Behavior Technician | Owings Mills, MD | 2022 |
| Marrenae Williams | 1790442598 | Case Manager/Care Coordinator | Fairfield, CA | 2021 |
| Marry Williams, CRNA | 1346242880 | Certified Registered Nurse Anesthetist | Phoenix, AZ | 2005 |
| Marsaley Williams | 1184465320 | Behavior Technician | Citrus Heights, CA | 2024 |
| Marschette Williams | 1922322122 | Registered Nurse | Syracuse, NY | 2010 |
| Marsha Williams | 1023837200 | Case Manager/Care Coordinator | Canton, OH | 2024 |
| Marsha Williams, RN | 1225372535 | Registered Nurse | St George, UT | 2012 |
| Marsha Williams | 1417662610 | Clinical Social Worker | Fort Stewart, GA | 2023 |
| Marsha Williams, M.ED. | 1447597661 | Case Manager/Care Coordinator | Saint Louis, MO | 2013 |
| Marsha Williams | 1457199259 | Mental Health Counselor | Anchorage, AK | 2024 |
| Marsha Williams, SLPA | 1578850079 | Speech-Language Assistant | Malvern, AR | 2011 |
| Marsha Williams | 1578876017 | Registered Nurse | White Plains, NY | 2010 |
| Marsha Williams | 1588548044 | Adult Companion | Omaha, NE | 2025 |
| Marsha Williams, LPC | 1609920198 | Professional Counselor | Gatesville, TX | 2007 |
| Marsha Williams | 1740954155 | Community Health Worker | Sylvester, WV | 2021 |
| Marsha Williams, NNP-BC, MSN | 1881970242 | Critical Care Neonatal Nurse Practitioner | Huntington, WV | 2011 |
| Marsha Williams, MS, SAS | 1962758599 | Specialist | Albany, NY | 2012 |
| Marshall Williams, D.D.S. | 1588722615 | General Practice Dentistry | Birmingham, AL | 2006 |
| Marshall Williams, DDS | 1649962937 | General Practice Dentistry | Montgomery, AL | 2023 |
| Marshall Williams, MD | 1760468003 | Family Medicine Physician | Gilroy, CA | 2005 |
| Marshall Williams, MD | 1841981818 | Student in an Organized Health Care Education/Training Program | Phenix City, AL | 2023 |
| Marshall Williams, M.D., PHD | 1982713988 | Infectious Disease Physician | Newark, DE | 2006 |
| Marshette Williams | 1972467116 | Case Manager/Care Coordinator | Los Angeles, CA | 2025 |
| Marta Williams | 1861288474 | Student in an Organized Health Care Education/Training Program | Minneapolis, MN | 2025 |
| Martel Williams | 1649141599 | Behavior Technician | Katy, TX | 2025 |
| Martez Williams | 1043059306 | Home Health Aide | Cincinnati, OH | 2024 |
| Martez Williams | 1407682651 | Social Worker | Portsmouth, OH | 2024 |
| Martez Williams | 1588016331 | Other Specialist/Technologist | Detroit, MI | 2016 |
| Martha Williams | 1033473160 | Case Manager/Care Coordinator | North Las Vegas, NV | 2012 |
| Martha Williams, PHARM. D | 1053753624 | Pharmacist | Brownsville, TN | 2013 |
| Martha Williams, LCMHC | 1114469160 | Mental Health Counselor | Hendersonville, NC | 2016 |
| Martha Williams | 1174282669 | Licensed Vocational Nurse | San Leandro, CA | 2021 |
| Martha Williams, RN | 1205800745 | Registered Nurse | Ithaca, NY | 2006 |
| Martha Williams | 1215801592 | Student in an Organized Health Care Education/Training Program | Stamford, CT | 2025 |
| Martha Williams, CPNP | 1356598999 | Nurse Practitioner | Cleveland, OH | 2008 |
| Martha Williams, PSYCHOLOGIST | 1376675017 | Clinical Psychologist | Dallas, TX | 2007 |
| Martha Williams, RN | 1417383811 | Community Health Registered Nurse | Seneca, SC | 2013 |
| Martha Williams, DPH | 1467821074 | Pharmacist | Martin, TN | 2015 |
| Martha Williams, RD, LD | 1528741246 | Oncology Nutrition Registered Dietitian | Oklahoma City, OK | 2023 |
| Martha Williams, P.T. | 1578886164 | Physical Therapist | Paris, IL | 2010 |
| Martha Williams | 1619952090 | Mental Health Counselor | Carlisle Barracks, PA | 2005 |
| Martha Williams, DHSC, MS, PA-C | 1649565797 | Physician Assistant | Harrisonburg, VA | 2011 |
| Martha Williams, P.T. | 1689748451 | Physical Therapist | Vacaville, CA | 2006 |
| Martha Williams, MSW,MS MED | 1689857856 | Clinical Social Worker | Bangor, ME | 2007 |
| Martha Williams, CPNP | 1730236670 | Pediatric Nurse Practitioner | San Antonio, TX | 2007 |
| Martha Williams | 1801531017 | Personal Care Attendant | Las Vegas, NV | 2022 |
| Martha Williams, PH.D. | 1841253150 | Psychologist | Middletown, RI | 2006 |
| Martha Williams | 1942876057 | Marriage & Family Therapist | Long Beach, CA | 2021 |
| Martha Williams, RPH | 1962693010 | Pharmacist | Mequon, WI | 2007 |
| Martha Williams | 1982166815 | Registered Nurse | Las Vegas, NV | 2019 |
| Martha Williams | 1992386395 | Mental Health Counselor | San Leandro, CA | 2021 |
| Marthe Williams, MSW, LISW | 1437405990 | Clinical Social Worker | Columbia, SC | 2012 |
| Martin Williams, DDS | 1184742801 | General Practice Dentistry | Green Bay, WI | 2007 |
| Martin Williams, PH.D. | 1235200957 | Clinical Psychologist | Cupertino, CA | 2006 |
| Martin Williams, LISW | 1265802573 | Social Worker | Maple Heights, OH | 2015 |
| Martin Williams | 1528575578 | Mental Health Counselor | Gastonia, NC | 2017 |
| Martin Williams | 1538813555 | Social Worker | Hamilton, OH | 2022 |
| Martin Williams, DC | 1598817512 | Chiropractor | Arlington, TX | 2007 |
| Martin Williams, MD | 1669420733 | Psychiatry Physician | Smithfield, NC | 2006 |
| Martin Williams | 1679047997 | Physical Therapist | Somersworth, NH | 2019 |
| Martin Williams, MD | 1851386429 | Surgery Physician | Dorchester Center, MA | 2005 |
| Martin Williams, MD | 1902863798 | Internal Medicine Physician | Danbury, CT | 2006 |
| Martin Williams | 1972199339 | Social Worker | Oxnard, CA | 2020 |
| Martina Williams, MS, LPC | 1083339469 | Professional Counselor | Saint Louis, MO | 2022 |
| Martina Williams | 1093347213 | Counselor | Oakland, CA | 2020 |
| Martina Williams, MD | 1164109690 | Pediatrics Physician | Park Ridge, IL | 2023 |
| Martina Williams | 1265141592 | Behavior Technician | Baltimore, MD | 2022 |
| Martina Williams, ARNP | 1730638297 | Nurse Practitioner | Naples, FL | 2016 |
| Martine Williams | 1275159519 | Registered Nurse | Spring Valley, NY | 2020 |
| Martize Williams | 1700770377 | Day Training/Habilitation Specialist | Lincoln, NE | 2025 |
| Marty Williams, FNP | 1255527073 | Nurse Practitioner | Coeur D Alene, ID | 2007 |
| Marva Williams, NP | 1508951039 | Nurse Practitioner | Saint Louis, MO | 2006 |
| Marva Williams, MD | 1518068873 | Family Medicine Physician | Manning, SC | 2006 |
| Marva Williams, M.DIV, MA, LPC | 1649756693 | Professional Counselor | Woodbridge, VA | 2018 |
| Marvel Williams | 1114335411 | Community Health Worker | Columbus, GA | 2014 |
| Marvelin Williams, NP | 1740387216 | Obstetrics & Gynecology Nurse Practitioner | Jamaica, NY | 2006 |
| Marvell Williams | 1649737800 | Behavior Technician | Farmington Hills, MI | 2019 |
| Marvin Williams, MD | 1104485002 | Student in an Organized Health Care Education/Training Program | New York, NY | 2019 |
| Marvin Williams, DDS | 1124127287 | General Practice Dentistry | Flint, MI | 2006 |
| Marvin Williams, MD | 1164460929 | Family Medicine Physician | Midlothian, VA | 2006 |
| Marvin Williams, DPM | 1174634000 | Sports Medicine Podiatrist | Pell City, AL | 2006 |
| Marvin Williams, DDS | 1295011369 | General Practice Dentistry | Ft Worth, TX | 2011 |
| Marvin Williams, D.O. | 1336121169 | Maternal & Fetal Medicine Physician | Oklahoma City, OK | 2005 |
| Marvin Williams | 1487384608 | Driver | Ira, MI | 2022 |
| Marvin Williams | 1598188989 | Case Manager/Care Coordinator | North Little Rock, AR | 2014 |
| Marvin Williams, MSSW | 1659494052 | Clinical Social Worker | Dallas, TX | 2007 |
| Marvin Williams | 1760146880 | Athletic Trainer | Southfield, MI | 2021 |
| Marvin Williams, ARNP | 1790068039 | Psychiatric/Mental Health Nurse Practitioner | Seattle, WA | 2011 |
| Marvin Williams, M.D. | 1841300159 | Emergency Medicine Physician | Springfield, OH | 2006 |
| Marvin Williams | 1871910026 | Counselor | Louisville, KY | 2014 |
| Marvin Williams, OTR/L | 1992093710 | Occupational Therapist | Madison, MS | 2011 |
| Mary Williams | 1003417080 | Marriage & Family Therapist | Citrus Heights, CA | 2020 |
| Mary Williams | 1013783414 | Registered Nurse | Surprise, AZ | 2023 |
| Mary Williams | 1033449350 | Speech-Language Pathologist | Melbourne, FL | 2010 |
| Mary Williams, LCSW-C | 1043690142 | Clinical Social Worker | Baltimore, MD | 2015 |
| Mary Williams, PA-C | 1053546408 | Physician Assistant | Mechanicsville, VA | 2009 |
| Mary Williams, LSW | 1063187177 | Clinical Social Worker | Parma, OH | 2021 |
| Mary Williams | 1063380798 | Behavior Technician | Rockville, MD | 2025 |
| Mary Williams, PHARMACIST | 1063532919 | Pharmacist | Darlington, SC | 2007 |
| Mary Williams | 1073305207 | Case Manager/Care Coordinator | Riverdale, MD | 2025 |
| Mary Williams, PTA | 1073317178 | Physical Therapy Assistant | Beaufort, SC | 2025 |
| Mary Williams | 1083492037 | Community Health Worker | Erie, PA | 2023 |
| Mary Williams, CNM | 1093091175 | Advanced Practice Midwife | Suffolk, VA | 2011 |
| Mary Williams | 1104297936 | Case Manager/Care Coordinator | Oklahoma City, OK | 2015 |
| Mary Williams, CRNP | 1124134929 | Family Nurse Practitioner | Allentown, PA | 2006 |
| Mary Williams, ANP | 1134177439 | Nurse Practitioner | Rogers, AR | 2006 |
| Mary Williams | 1134379134 | Mental Health Counselor | Cherry Hill, NJ | 2008 |
| Mary Williams, APNP | 1144415068 | Family Nurse Practitioner | Mequon, WI | 2007 |
| Mary Williams, MHC-LP | 1144853045 | Mental Health Counselor | Brooklyn, NY | 2020 |
| Mary Williams | 1164374294 | Personal Care Attendant | Las Vegas, NV | 2026 |
| Mary Williams, RD | 1164667200 | Registered Dietitian | Wilmington, DE | 2008 |
| Mary Williams, APRN | 1164807798 | Family Nurse Practitioner | Southlake, TX | 2015 |
| Mary Williams, PHARMD | 1164894556 | Pharmacist | Perryville, MD | 2015 |
| Mary Williams | 1174161475 | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | West Memphis, AR | 2019 |
| Mary Williams, RN, MS, FNP | 1174602825 | Nurse Practitioner | Walnut Creek, CA | 2006 |
| Mary Williams, NP-C | 1174846216 | Family Nurse Practitioner | Cordele, GA | 2010 |
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).