Providers Sierra Duncan to Teresa Duncan McDonald, M.C., C.T.R.S.
300 individual NPIs in the federal registry, part 5,895 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. 86 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Sierra Duncan | 1790507614 | Electroneurodiagnostic Specialist/Technologist | Colorado Springs, CO | 2024 |
| Sierra Duncan, SLP-CCC | 1952248080 | Speech-Language Pathologist | Winchester, TN | 2026 |
| Sikizi Duncan, L.V.N. | 1992952683 | Licensed Vocational Nurse | Altadena, CA | 2008 |
| Silas Duncan, M.D. | 1508868001 | Vascular Surgery Physician | Tyler, TX | 2005 |
| Skye Duncan | 1225701204 | Social Worker | Middletown, OH | 2021 |
| Sol Duncan | 1003258070 | Interpreter | Vancouver, WA | 2013 |
| Sonja Duncan | 1093022550 | Massage Therapist | Bellingham, WA | 2010 |
| Sonja Duncan | 1184009995 | Physician Assistant | Huntington, IN | 2015 |
| Sophia Duncan | 1255287991 | Behavior Technician | Eugene, OR | 2026 |
| Sophia Duncan | 1568351773 | Mental Health Counselor | Oakland, CA | 2025 |
| Sophie Duncan, FNP | 1588255251 | Family Medicine Physician | Austin, TX | 2021 |
| Spencer Duncan, DPT | 1356194138 | Physical Therapist | Mt Pleasant, UT | 2024 |
| Spencer Duncan, D.O. | 1497934061 | Family Medicine Physician | Valley Center, KS | 2007 |
| St Eucherius Duncan | 1518277334 | Pharmacist | Homosassa, FL | 2010 |
| Stacey Duncan, PA-C | 1144363748 | Physician Assistant | Los Angeles, CA | 2007 |
| Stacey Duncan, COTA/L | 1285210161 | Occupational Therapy Assistant | Fitchburg, WI | 2021 |
| Stacey Duncan, COTA | 1598323446 | Occupational Therapy Assistant | Wichita, KS | 2019 |
| Staci Duncan, ARNP | 1407245285 | Family Nurse Practitioner | Spokane, WA | 2015 |
| Staci Duncan, APRN | 1922804848 | Family Nurse Practitioner | Destin, FL | 2025 |
| Stacy Duncan, LCSW | 1851558456 | Clinical Social Worker | Saint Louis, MO | 2008 |
| Starshemah Duncan, MS, LPC, CDAC | 1720479066 | Professional Counselor | Verona, PA | 2015 |
| Stephanie Duncan, LCSW | 1083597082 | Mental Health Counselor | Abilene, TX | 2025 |
| Stephanie Duncan, RBT | 1164179396 | Behavior Technician | Aurora, CO | 2022 |
| Stephanie Duncan, DNP | 1306574280 | Family Nurse Practitioner | Wamego, KS | 2022 |
| Stephanie Duncan, PT | 1356475511 | Physical Therapist | Annapolis, MD | 2007 |
| Stephanie Duncan | 1366733032 | Clinical Social Worker | Owensboro, KY | 2011 |
| Stephanie Duncan | 1427416130 | Hearing Instrument Specialist | Tyler, TX | 2016 |
| Stephanie Duncan, LPC | 1427907625 | Professional Counselor | Robstown, TX | 2026 |
| Stephanie Duncan, LLMSW | 1447502430 | Clinical Social Worker | Ludington, MI | 2012 |
| Stephanie Duncan | 1518782853 | Speech-Language Assistant | Dallas, TX | 2024 |
| Stephanie Duncan, APRN-CNP | 1669971842 | Nurse Practitioner | Cincinnati, OH | 2018 |
| Stephanie Duncan, LMFT | 1740940410 | Marriage & Family Therapist | Stuart, FL | 2021 |
| Stephanie Duncan | 1831051176 | Behavior Technician | Peru, IN | 2025 |
| Stephanie Duncan | 1902790694 | Critical Care Medicine Registered Nurse | Fort Bliss, TX | 2025 |
| Stephanie Duncan, MOT, OTR/L | 1932306164 | Occupational Therapist | Greenville, SC | 2007 |
| Stephanie Duncan | 1972272987 | Behavior Technician | Philadelphia, PA | 2021 |
| Stephen Duncan, M.D. | 1295892446 | Family Medicine Physician | Puyallup, WA | 2007 |
| Stephen Duncan, MD | 1487607586 | Obstetrics & Gynecology Physician | Tallahassee, FL | 2006 |
| Stephen Duncan, CRNA | 1497436430 | Certified Registered Nurse Anesthetist | Camp Lejeune, NC | 2023 |
| Stephen Duncan, MD | 1578726873 | Adult Reconstructive Orthopaedic Surgery Physician | Lexington, KY | 2008 |
| Stephen Duncan, PHARMD | 1972297117 | Pharmacist | Salem, VA | 2023 |
| Sterling Duncan, CMT | 1790063360 | Massage Therapist | Los Gatos, CA | 2011 |
| Steven Duncan, MD | 1194474064 | Student in an Organized Health Care Education/Training Program | Nashville, TN | 2022 |
| Steven Duncan, MD | 1588637904 | Specialist | Pittsburgh, PA | 2006 |
| Summer Duncan | 1902630338 | Case Manager/Care Coordinator | Nashville, AR | 2024 |
| Susan Duncan, M.S., PHD | 1306197157 | Professional Counselor | Bastrop, TX | 2012 |
| Susan Duncan, NP | 1407834732 | Adult Health Nurse Practitioner | Summit, MS | 2006 |
| Susan Duncan, LCSW | 1427387463 | Clinical Social Worker | Bernalillo, NM | 2009 |
| Susan Duncan | 1457950644 | Personal Care Attendant | Kenova, WV | 2020 |
| Susan Duncan, D.C. | 1518010768 | Sports Physician Chiropractor | Blue Grass, IA | 2007 |
| Susan Duncan, LPC | 1548257272 | Professional Counselor | Tucson, AZ | 2005 |
| Susan Duncan, R.PH. | 1558655613 | Pharmacist | North Charleston, SC | 2011 |
| Susan Duncan, LCSW | 1700106606 | Clinical Social Worker | Fort Washakie, WY | 2010 |
| Susan Duncan, SLP | 1760893481 | Speech-Language Pathologist | Huntsville, AL | 2014 |
| Susan Duncan, AU.D. | 1770742553 | Audiologist | Atlanta, GA | 2008 |
| Susan Duncan | 1770941809 | Social Worker | Salt Lake City, UT | 2016 |
| Susan Duncan, R.N. | 1811227069 | Ambulatory Care Registered Nurse | Orange, CA | 2010 |
| Susana Duncan, MD | 1699848606 | Pain Medicine (Physical Medicine & Rehabilitation) Physician | New York, NY | 2006 |
| Susanne Duncan, NURSE PRACTITIONER | 1326724600 | Family Medicine Physician | Chiloquin, OR | 2023 |
| Suzana Duncan, LLPC | 1821863143 | Mental Health Counselor | Clinton Township, MI | 2023 |
| Suzanna Duncan, NP-C | 1861852139 | Family Nurse Practitioner | Gallipolis, OH | 2016 |
| Suzanne Duncan | 1073221784 | Behavior Technician | Modesto, CA | 2022 |
| Suzanne Duncan, M.D., M.A. | 1285843185 | Physical Medicine & Rehabilitation Physician | Pensacola, FL | 2007 |
| Sydney Duncan | 1053999243 | Mental Health Counselor | Santa Ana, CA | 2021 |
| Sydney Duncan | 1366116527 | Occupational Therapy Assistant | Bryant, AR | 2021 |
| Sydney Duncan, DPT | 1659000396 | Physical Therapist | McMinnville, TN | 2022 |
| Sylvia Duncan, RN, BSN | 1154085892 | Registered Nurse | Colorado Springs, CO | 2021 |
| Sylvia Duncan, LPC | 1225649361 | Professional Counselor | Hollandale, MS | 2020 |
| Sylvia Duncan | 1669879318 | Registered Nurse | Kansas City, KS | 2014 |
| Tabitha Duncan | 1689269565 | Attendant Care Provider | Cannon, KY | 2021 |
| Tabitha Duncan | 1740990175 | Family Nurse Practitioner | Chicago, IL | 2022 |
| Tai Duncan, LMHC | 1891113023 | Professional Counselor | Plymouth, IN | 2014 |
| Taiesha Duncan | 1013434869 | Personal Care Attendant | Kalamazoo, MI | 2017 |
| Takeisha Duncan | 1114645942 | Behavior Technician | Farmington Hills, MI | 2022 |
| Takeyla Duncan | 1851234736 | Social Worker | Dobbs Ferry, NY | 2026 |
| Tamara Duncan | 1245489806 | Hearing Instrument Specialist | Bandera, TX | 2008 |
| Tamara Duncan | 1336594464 | Case Manager/Care Coordinator | New Iberia, LA | 2016 |
| Tamara Duncan, M.S., CCC-SLP | 1790294353 | Speech-Language Pathologist | Bremerton, WA | 2017 |
| Tamara Duncan | 1891831798 | Specialist | Freeport, IL | 2007 |
| Tamarille Duncan, PTA | 1336565183 | Physical Therapy Assistant | Irmo, SC | 2014 |
| Tamela Duncan, MSW LCSW | 1376583260 | Clinical Social Worker | Greensboro, NC | 2006 |
| Tami Duncan, LPN | 1598028920 | Licensed Practical Nurse | Willard, OH | 2012 |
| Tamir Duncan | 1023892627 | Behavior Technician | Farmington Hills, MI | 2023 |
| Tammi Duncan, FNP-C | 1194378331 | Family Nurse Practitioner | Richmond, TX | 2019 |
| Tammy Duncan, RPH | 1598073843 | Pharmacist | Greenville, MS | 2010 |
| Tammy Duncan | 1609436500 | Addiction (Substance Use Disorder) Counselor | Lemon Grove, CA | 2019 |
| Tanetria Duncan | 1689472573 | Behavior Technician | Yorkville, IL | 2025 |
| Tangela Duncan, COTA/L | 1295246221 | Occupational Therapy Assistant | Murfreesboro, TN | 2017 |
| Taniel Duncan, LPN | 1285049650 | Licensed Practical Nurse | Bronx, NY | 2014 |
| Tanika Duncan, CRNP | 1386378578 | Acute Care Nurse Practitioner | Tuscaloosa, AL | 2022 |
| Tanya Duncan, ATC, LAT, ITAT | 1528664927 | Athletic Trainer | Shepherdstown, WV | 2020 |
| Tanya Duncan, RPH | 1548864804 | Pharmacist | Monett, MO | 2020 |
| Tara Duncan | 1003697244 | Doula | Durham, NC | 2023 |
| Tara Duncan | 1104310499 | Case Manager/Care Coordinator | El Reno, OK | 2018 |
| Tara Duncan | 1881987402 | Social Worker | Jacksonville, FL | 2011 |
| Tashawn Duncan | 1841116654 | Behavior Technician | Saint Louis, MO | 2026 |
| Tashawna Duncan, PH.D. | 1699820613 | Forensic Psychologist | Bradenton, FL | 2007 |
| Tatle Duncan | 1689197592 | Case Manager/Care Coordinator | Shreveport, LA | 2017 |
| Tawana Duncan | 1316494859 | Home Health Aide | Cleveland, OH | 2016 |
| Tawyana Duncan | 1639302292 | Registered Nurse | Milwaukee, WI | 2009 |
| Taylor Duncan, DPT | 1023813730 | Physical Therapist | Jenks, OK | 2025 |
| Taylor Duncan | 1063086742 | Homemaker | Logan, WV | 2021 |
| Taylor Duncan, LPCC | 1083061394 | Professional Counselor | Bowling Green, KY | 2016 |
| Taylor Duncan | 1174103089 | Behavior Analyst | San Jose, CA | 2021 |
| Taylor Duncan | 1225908841 | Student in an Organized Health Care Education/Training Program | Norfolk, VA | 2025 |
| Taylor Duncan | 1235513425 | Athletic Trainer | Newark, DE | 2015 |
| Taylor Duncan, PA-C | 1285113019 | Physician Assistant | Charlotte, NC | 2018 |
| Taylor Duncan | 1386109502 | Physical Therapist | Asheville, NC | 2019 |
| Taylor Duncan, DMD | 1386173433 | General Practice Dentistry | Hoover, AL | 2017 |
| Taylor Duncan | 1437564622 | Contractor | Reno, NV | 2014 |
| Taylor Duncan, DC | 1467979377 | Chiropractor | Rancho Santa Fe, CA | 2017 |
| Taylor Duncan | 1477145373 | Nurse's Aide | Lenoir City, TN | 2021 |
| Taylor Duncan, M.D. | 1528471653 | Emergency Medicine Physician | Fort Thomas, KY | 2014 |
| Taylor Duncan, COTA/L | 1619596459 | Occupational Therapy Assistant | North Chesterfield, VA | 2020 |
| Taylor Duncan, FNP-C | 1689207060 | Nurse Practitioner | Braselton, GA | 2020 |
| Taylor Duncan, PHARMD | 1710631833 | Pharmacist | Man, WV | 2022 |
| Taylor Duncan, DO | 1770043580 | Emergency Medicine Physician | San Diego, CA | 2019 |
| Teilor Duncan | 1275287377 | Mental Health Counselor | Detroit, MI | 2022 |
| Teonka Duncan | 1851097323 | Behavior Technician | Lithia Springs, GA | 2023 |
| Tequila Duncan | 1972078806 | Licensed Practical Nurse | Gainesville, FL | 2018 |
| Tera Duncan | 1588436703 | Addiction (Substance Use Disorder) Counselor | Columbus, OH | 2023 |
| Teresa Duncan, LPT | 1194385039 | Physical Therapist | Waverly, IA | 2019 |
| Teresa Duncan, NP | 1215138078 | Family Nurse Practitioner | New York, NY | 2007 |
| Teresa Duncan, PT | 1356608145 | Physical Therapist | Alpena, MI | 2012 |
| Teresa Duncan, FNP-BC, PMHNP-BC | 1417382839 | Psychiatric/Mental Health Nurse Practitioner | Cambridge, MN | 2013 |
| Teresa Duncan | 1447074844 | Community Health Worker | Santa Ana, CA | 2024 |
| Teresa Duncan | 1457835746 | Mental Health Counselor | Prestonsburg, KY | 2018 |
| Teresa Duncan, M.D. | 1598853848 | Pediatric Critical Care Medicine Physician | Hollywood, FL | 2006 |
| Teresa Duncan | 1659952653 | Case Manager/Care Coordinator | McAlester, OK | 2021 |
| Teresa Duncan, CRNA | 1679669378 | Certified Registered Nurse Anesthetist | Decatur, IL | 2006 |
| Teresia Duncan | 1689882342 | Case Manager/Care Coordinator | Jonesboro, AR | 2007 |
| Terri Duncan, FNP | 1750501326 | Family Nurse Practitioner | Kingsport, TN | 2007 |
| Terri Duncan | 1891525960 | Registered Dietitian | Atlanta, GA | 2024 |
| Terry Duncan | 1659651180 | Mental Health Counselor | Grants Pass, OR | 2011 |
| Terry Duncan, OD | 1689749590 | Optometrist | Columbus, OH | 2006 |
| Tess Duncan | 1518770916 | Physical Therapy Assistant | San Antonio, TX | 2025 |
| Tessa Duncan | 1114540606 | Case Manager/Care Coordinator | San Diego, CA | 2020 |
| Tessa Duncan, LPN | 1205249836 | Licensed Practical Nurse | Lakewood, WA | 2014 |
| Tessa Duncan | 1881304434 | Behavior Technician | Junction City, KS | 2022 |
| Thane Duncan, M.D. | 1538275078 | Otolaryngology Physician | Germantown, TN | 2006 |
| Theodore Duncan, C.R.N.A. | 1689848681 | Certified Registered Nurse Anesthetist | Camden, NJ | 2008 |
| Theon Duncan | 1871281865 | Behavior Technician | Gardena, CA | 2023 |
| Therese Duncan | 1710350160 | Addiction (Substance Use Disorder) Counselor | Oak View, CA | 2015 |
| Thomas Duncan, M.D. | 1063484137 | Ophthalmology Physician | Lufkin, TX | 2006 |
| Thomas Duncan, MD | 1093770893 | Family Medicine Physician | Astoria, OR | 2006 |
| Thomas Duncan, DDS | 1124222369 | Dentist | Goldsboro, MD | 2007 |
| Thomas Duncan | 1225709017 | Personal Care Attendant | Parkersburg, WV | 2021 |
| Thomas Duncan, DO | 1316097439 | Surgery Physician | Ventura, CA | 2007 |
| Thomas Duncan, DO | 1386082790 | Obstetrics & Gynecology Physician | Richmond, IN | 2013 |
| Thomas Duncan, MPA, PA-C | 1528449790 | Physician Assistant | Newport News, VA | 2015 |
| Thomas Duncan, LICSW | 1538943378 | Mental Health Counselor | Tacoma, WA | 2023 |
| Thomas Duncan, MD | 1588641039 | Internal Medicine Physician | Neenah, WI | 2005 |
| Thomas Duncan, LCSW | 1609751288 | Clinical Social Worker | Nashville, TN | 2025 |
| Thomas Duncan | 1629493697 | Acupuncturist | San Carlos, CA | 2014 |
| Thomas Duncan, MD | 1639113327 | Family Medicine Physician | Olympia, WA | 2006 |
| Thomas Duncan, P.T. | 1649386640 | Orthopedic Physical Therapist | Lynchburg, VA | 2006 |
| Thomas Duncan | 1659622785 | Clinical Social Worker | Provo, UT | 2012 |
| Thomas Duncan, MD | 1669462842 | Obstetrics & Gynecology Physician | Lexington, KY | 2005 |
| Thomas Duncan, MD | 1750377651 | Family Medicine Physician | Highlands, NC | 2005 |
| Thomas Duncan, LBSW | 1750423950 | Case Manager/Care Coordinator | Clinton Township, MI | 2007 |
| Thomas Duncan, DDS | 1770615049 | Dentist | Vista, CA | 2007 |
| Thomas Duncan | 1881835130 | Counselor | San Francisco, CA | 2009 |
| Thomas Duncan, D.C. | 1902918014 | Chiropractor | Cornelius, NC | 2006 |
| Thunhi Duncan | 1336676188 | Pharmacist | Orange, CA | 2017 |
| Tiana Duncan, LMT | 1639786379 | Massage Therapist | Seattle, WA | 2020 |
| Tiana Duncan | 1679410500 | Pharmacist | College Station, TX | 2026 |
| Tiffany Duncan, LPN | 1427758945 | Licensed Practical Nurse | Marlinton, WV | 2023 |
| Tiffany Duncan, D.M.D. | 1447518972 | General Practice Dentistry | Mayfield, KY | 2012 |
| Tiffany Duncan, AA, BA, MSW, LCSW | 1609385616 | Clinical Social Worker | Pasadena, CA | 2017 |
| Tiffany Duncan, LPC,NCC,M.A | 1972170538 | Professional Counselor | Savannah, GA | 2021 |
| Timothy Duncan, MD | 1013908227 | Emergency Medicine Physician | San Francisco, CA | 2005 |
| Timothy Duncan | 1235765108 | Emergency Medicine Physician | Vernal, UT | 2020 |
| Timothy Duncan, MS, MPA | 1467241505 | Professional Counselor | Greenwood, SC | 2025 |
| Timothy Duncan, M.D. | 1669466504 | Gastroenterology Physician | Newport News, VA | 2005 |
| Timothy Duncan, MD | 1982674628 | Diagnostic Radiology Physician | Fort Collins, CO | 2006 |
| Tina Duncan, NP | 1548626229 | Gerontology Nurse Practitioner | Indianapolis, IN | 2016 |
| Tiphany Duncan, LCDC III | 1679086490 | Addiction (Substance Use Disorder) Counselor | Waverly, OH | 2017 |
| Titus Duncan, M.D. | 1366480402 | Specialist | Atlanta, GA | 2006 |
| Tobi Duncan | 1154770261 | Counselor | Lawton, OK | 2016 |
| Todd Duncan, PT | 1083710180 | Physical Therapist | Minneapolis, MN | 2006 |
| Todd Duncan | 1447418579 | Diagnostic Radiology Physician | Rocky Mount, NC | 2008 |
| Tomika Duncan | 1689214116 | Peer Specialist | Alexandria, LA | 2020 |
| Tommy Duncan, NURSE ANESTHETIST | 1184894313 | Certified Registered Nurse Anesthetist | Nocona, TX | 2008 |
| Tommy Duncan, MD | 1194882258 | Family Medicine Physician | Keller, TX | 2007 |
| Tommy Duncan, RPH | 1982971149 | Pharmacist | Saint Joseph, MO | 2011 |
| Tomora Duncan, B.S.B.A., CPT | 1083209308 | Other Specialist/Technologist | Mesquite, TX | 2021 |
| Toni Duncan, M.A., LPC | 1962705673 | Professional Counselor | Jacksonville, NC | 2010 |
| Tonyetta Duncan | 1346903366 | Behavior Technician | Oak Lawn, IL | 2021 |
| Torri Duncan | 1558803122 | Case Manager/Care Coordinator | Provo, UT | 2016 |
| Tracey Duncan, PA | 1083646129 | Physician Assistant | Lafayette, CO | 2006 |
| Tracey Duncan, OTRL | 1649438557 | Occupational Therapist | Covington, TN | 2008 |
| Traci Duncan, ARNP, PNP | 1144414012 | Pediatric Nurse Practitioner | Houston, TX | 2007 |
| Traci Duncan, CRDH | 1720763238 | Dental Hygienist | Pensacola, FL | 2023 |
| Tracie Duncan | 1396334959 | Counselor | Clinton Twp, MI | 2021 |
| Tracy Duncan | 1285736132 | Mental Health Counselor | Port Huron, MI | 2006 |
| Tracy Duncan, ARNP | 1295017598 | Family Nurse Practitioner | Keene, NH | 2011 |
| Tracy Duncan, D.P.M. | 1437142619 | Foot & Ankle Surgery Podiatrist | Blytheville, AR | 2005 |
| Tracy Duncan, FNP-C | 1548042690 | Family Nurse Practitioner | Madisonville, KY | 2023 |
| Tracy Duncan, PHARMD | 1841547817 | Pharmacist | Goose Creek, SC | 2012 |
| Traniece Duncan, APRN | 1346056108 | Psychiatric/Mental Health Nurse Practitioner | Bowling Green, KY | 2024 |
| Travis Duncan, PSYD | 1306118567 | School Counselor | Waynesburg, PA | 2012 |
| Travis Duncan, RBT | 1740988039 | Behavior Technician | Morristown, TN | 2023 |
| Trematrice Duncan, MA, BCBA, LBA | 1689046773 | Behavior Analyst | Baker, LA | 2015 |
| Trevor Duncan | 1346064169 | Mental Health Counselor | Bellingham, WA | 2024 |
| Trevor Duncan | 1356283550 | Student in an Organized Health Care Education/Training Program | Orlando, FL | 2026 |
| Trevor Duncan | 1972363299 | Mental Health Counselor | Ellensburg, WA | 2024 |
| Trinity Duncan | 1508749045 | Personal Care Attendant | Barboursville, WV | 2025 |
| Trisha Duncan, MD | 1821409988 | Family Medicine Physician | Orlando, FL | 2014 |
| Tristen Duncan | 1124754098 | Pharmacist | Jefferson City, MO | 2022 |
| Troy Duncan, MSW | 1366134876 | Social Worker | Moorhead, MN | 2023 |
| Troy Duncan | 1407615743 | Peer Specialist | Palm Springs, CA | 2024 |
| Troy Duncan | 1457197386 | Physical Therapist | West Chester, OH | 2024 |
| Troy Duncan, PMHNP-BC | 1568989465 | Psychiatric/Mental Health Nurse Practitioner | Greensboro, NC | 2017 |
| Tunisia Duncan, LCSW-A | 1528908506 | Clinical Social Worker | Salisbury, MD | 2026 |
| Twana Duncan, D.D.S. | 1356354179 | General Practice Dentistry | Antlers, OK | 2006 |
| Tyler Duncan, DO | 1154737799 | Orthopaedic Surgery Physician | Bristol, TN | 2014 |
| Tyler Duncan | 1396452330 | Professional Counselor | Norman, OK | 2022 |
| Tyler Duncan, MSW | 1902682644 | Clinical Social Worker | San Fernando, CA | 2023 |
| Tyler Duncan | 1942744776 | Specialist | Gaffney, SC | 2016 |
| Tyneik Duncan | 1245592039 | Specialist | Central Islip, NY | 2012 |
| Ulric Duncan, M.D. | 1518908854 | Specialist | Southaven, MS | 2006 |
| Valerie Duncan | 1376314187 | Behavior Technician | Crown Point, IN | 2024 |
| Valerie Duncan, LMFT | 1427888783 | Marriage & Family Therapist | Bountiful, UT | 2024 |
| Valerie Duncan | 1912478983 | Anesthesiologist Assistant | Milwaukee, WI | 2018 |
| Valorie Duncan | 1003734013 | Registered Nurse | Bowling Green, KY | 2026 |
| Vanessa Duncan, MS, CCC-SLP | 1669515979 | Speech-Language Pathologist | Lemont, IL | 2007 |
| Vanessa Duncan | 1770181224 | Registered Nurse | Honolulu, HI | 2020 |
| Vaniecea Duncan, D.C. | 1063803088 | Chiropractor | Mesquite, TX | 2015 |
| Vannessa Duncan | 1689513632 | Behavior Technician | Autryville, NC | 2026 |
| Vena Duncan, LCSW | 1205927811 | Clinical Social Worker | Danville, VA | 2006 |
| Vernita Duncan, MD | 1427018589 | Internal Medicine Physician | Memphis, TN | 2006 |
| Vernon Duncan, M.D. | 1487606984 | Diagnostic Radiology Physician | Paducah, KY | 2006 |
| Veronica Duncan, LCSW | 1205364304 | Clinical Social Worker | Manassas, VA | 2017 |
| Vicki Duncan, MD | 1235230798 | Obstetrics & Gynecology Physician | Los Gatos, CA | 2006 |
| Vicky Duncan, MSW LISW | 1336580984 | Clinical Social Worker | Oskaloosa, IA | 2013 |
| Victoria Duncan, RDN | 1174381776 | Registered Dietitian | Hopatcong, NJ | 2024 |
| Victoria Duncan | 1205698958 | Case Manager/Care Coordinator | Burton, OH | 2024 |
| Victoria Duncan, DC | 1235948142 | Chiropractor | Idaho Falls, ID | 2025 |
| Victoria Duncan | 1538849674 | Case Manager/Care Coordinator | Independence, OH | 2023 |
| Victoria Duncan | 1972321826 | Speech-Language Pathologist | Austin, TX | 2024 |
| Vincent Duncan, RADT | 1043980428 | Case Manager/Care Coordinator | Huntington Beach, CA | 2021 |
| Viola Duncan, LPC ICSW SAC ICS | 1235107129 | Clinical Social Worker | Madison, WI | 2006 |
| Violet Duncan | 1942753090 | Adult Companion | Portland, OR | 2016 |
| Virginia Duncan, ANP | 1306816350 | Adult Health Nurse Practitioner | Nashville, TN | 2006 |
| Virginia Duncan, M.D. | 1437579430 | Anatomic Pathology & Clinical Pathology Physician | Birmingham, AL | 2014 |
| Virginia Duncan, RPT | 1629155478 | Physical Therapist | Merritt Island, FL | 2006 |
| Wade Duncan, RN | 1346899432 | Registered Nurse | Yeadon, PA | 2019 |
| Wallace Duncan, M.D. | 1821153529 | Internal Medicine Physician | Lithonia, GA | 2006 |
| Walter Duncan, DDS | 1871677070 | Dentist | San Antonio, TX | 2006 |
| Wanita Duncan, MS,CCC-SLP | 1659606184 | Speech-Language Pathologist | Springfield, MO | 2009 |
| Wayne Duncan | 1558753178 | Athletic Trainer | Everett, WA | 2015 |
| Wendy Duncan, MS OTRL | 1033327747 | Occupational Therapist | Columbus, OH | 2007 |
| Wendy Duncan | 1194065961 | Student in an Organized Health Care Education/Training Program | Johnson City, TN | 2013 |
| Wendy Duncan, OD | 1538152145 | Optometrist | Fontana, CA | 2005 |
| Wendy Duncan | 1700257813 | Physical Therapy Assistant | Carmel, IN | 2015 |
| Wilhelmina Duncan, M.S.S.W. | 1487873899 | Clinical Social Worker | Shorewood, WI | 2007 |
| Will Duncan, PT | 1295174381 | Physical Therapist | Folkston, GA | 2013 |
| William Duncan | 1073130423 | Behavior Technician | Sudbury, MA | 2020 |
| William Duncan, PT, DPT | 1083040802 | Physical Therapist | Roswell, GA | 2013 |
| William Duncan, PHARMD | 1285442459 | Pharmacist | Lawrence, KS | 2024 |
| William Duncan | 1326546946 | Chiropractor | Shreveport, LA | 2018 |
| William Duncan, MD, PHD | 1396897302 | Endocrinology, Diabetes & Metabolism Physician | Washington, DC | 2007 |
| William Duncan, M.D. | 1477533685 | Specialist | Martin, TN | 2006 |
| William Duncan, MA | 1548091978 | Mental Health Counselor | Johnstown, PA | 2024 |
| William Duncan, RPH | 1609905165 | Pharmacist | Florence, SC | 2007 |
| William Duncan, MD | 1679516231 | Orthopaedic Surgery Physician | Springfield, MO | 2006 |
| William Duncan, M.D. | 1780676098 | Urology Physician | McComb, MS | 2005 |
| William Duncan, RPH | 1811203672 | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | Sun City, AZ | 2010 |
| William Duncan, EDD | 1942847207 | Athletic Trainer | Williams Bay, WI | 2019 |
| Woodrow Duncan, MD | 1508811241 | Internal Medicine Physician | Emporia, KS | 2006 |
| Yana Duncan, DO | 1821258567 | Emergency Medicine Physician | Austin, TX | 2008 |
| Yashana Duncan | 1417349796 | Case Manager/Care Coordinator | Wyoming, MI | 2015 |
| Yessica Duncan | 1942171533 | Case Manager/Care Coordinator | Chula Vista, CA | 2025 |
| Yolanda Duncan, MD | 1114981404 | Family Medicine Physician | Tallmadge, OH | 2006 |
| Yolanda Duncan | 1669197562 | Behavior Analyst | New York, NY | 2022 |
| Yolonda Duncan | 1700683133 | Personal Care Attendant | Omaha, NE | 2025 |
| Yvette Duncan, LPT | 1033089206 | Licensed Vocational Nurse | Atascadero, CA | 2025 |
| Zachary Duncan | 1346123361 | Adult Companion | Lincoln, NE | 2025 |
| Zachary Duncan, PA-C | 1689458572 | Physician Assistant | Iowa City, IA | 2023 |
| Zakiya Duncan | 1073321576 | Behavior Technician | Boise, ID | 2024 |
| Zane Duncan | 1568051399 | Behavior Technician | Fayetteville, NC | 2021 |
| Zara Duncan | 1992408835 | Behavior Technician | Ardmore, OK | 2023 |
| Zaria Duncan | 1346938412 | Behavior Technician | Irving, TX | 2023 |
| Zoey Duncan, MD | 1326807801 | Student in an Organized Health Care Education/Training Program | Nashville, TN | 2024 |
| Debra Duncan - Anderson, FNP | 1841373172 | Family Nurse Practitioner | Brooklyn, NY | 2006 |
| Chiarra Duncan - Perry, MSCJA | 1881305050 | Community Health Worker | Stockton, CA | 2022 |
| Jose Duncan Arosemena, MD | 1871782748 | Maternal & Fetal Medicine Physician | Tampa, FL | 2007 |
| Debra Duncan Bernard, COTA | 1023597184 | Occupational Therapy Assistant | Stuart, FL | 2018 |
| Megan Duncan Binstock, P.A. | 1235190323 | Physician Assistant | Buford, GA | 2006 |
| Cynthia Duncan Bornt, FNP | 1881632412 | Nurse Practitioner | Troy, NY | 2006 |
| Evadney Duncan Crouch | 1881525012 | Mental Health Counselor | Plano, TX | 2026 |
| Parker Duncan Diaz, MD, MPH, FAAFP | 1033434923 | Addiction Medicine (Family Medicine) Physician | Santa Rosa, CA | 2010 |
| Stephanie Duncan Garcia, DO, PA | 1780617183 | Family Medicine Physician | Miami, FL | 2006 |
| Sydnee Duncan Goldstein, MSW | 1750557542 | Clinical Social Worker | Bend, OR | 2008 |
| Rhonda Duncan Higgs, LMFT | 1144348491 | Marriage & Family Therapist | Encinitas, CA | 2007 |
| Charity Duncan Kachalia, DDS | 1003235763 | Dentist | San Ramon, CA | 2014 |
| Stephanie Duncan Kidwell | 1891241949 | Developmental Therapist | Cocoa, FL | 2016 |
| Michele Duncan King, LMT | 1023367620 | Massage Therapist | Ashland, OR | 2012 |
| Crystal Duncan Lane, LMFT, CSAC | 1558283655 | Marriage & Family Therapist | Blacksburg, VA | 2026 |
| Teresa Duncan McDonald, M.C., C.T.R.S. | 1972641504 | Recreation Therapist | Everett, WA | 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).