Providers Brian Duncan, M.D. to Daniel Duncan, M.D.
300 individual NPIs in the federal registry, part 5,888 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. 75 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Brian Duncan, M.D. | 1750365342 | Emergency Medicine Physician | Asheville, NC | 2005 |
| Brian Duncan, L.AC., DACM | 1881159952 | Acupuncturist | Kingsport, TN | 2019 |
| Brian Duncan, P.T. | 1972656213 | Physical Therapist | Houston, TX | 2007 |
| Brianna Duncan, MS, CCC-SLP | 1114708393 | Speech-Language Pathologist | Columbia, SC | 2023 |
| Brianna Duncan | 1225772676 | Psychiatric/Mental Health Nurse Practitioner | Portsmouth, VA | 2022 |
| Brianna Duncan | 1336822188 | Homemaker | Beckley, WV | 2023 |
| Brianna Duncan, AGNP | 1477283059 | Adult Health Nurse Practitioner | San Antonio, TX | 2022 |
| Brianna Duncan, LPC | 1497339873 | Professional Counselor | Kansas City, MO | 2021 |
| Brianna Duncan | 1740876085 | Behavior Technician | Baton Rouge, LA | 2020 |
| Brianna Duncan | 1801571385 | Home Health Aide | Cortland, OH | 2023 |
| Brianne Duncan | 1124563549 | Occupational Therapist | Port Orange, FL | 2016 |
| Briashanek Duncan | 1437618519 | Behavior Technician | Farmington Hills, MI | 2019 |
| Bridget Duncan | 1144805961 | Mental Health Counselor | Honolulu, HI | 2021 |
| Bridget Duncan, MD | 1275243750 | Behavior Technician | Marlborough, MA | 2022 |
| Brielle Duncan | 1316533631 | Case Manager/Care Coordinator | Philadelphia, PA | 2020 |
| Brielle Duncan | 1831065002 | School Social Worker | Washington, DC | 2025 |
| Brigette Duncan | 1134703226 | Massage Therapist | Riverdale, GA | 2021 |
| Briley Duncan | 1891653796 | Behavior Technician | Burleson, TX | 2026 |
| Britany Duncan | 1033826268 | Behavior Technician | Southfield, MI | 2022 |
| Brittany Duncan | 1134076524 | Massage Therapist | Montgomery, TX | 2026 |
| Brittany Duncan | 1316768815 | Family Nurse Practitioner | Munfordville, KY | 2024 |
| Brittany Duncan | 1336547512 | Behavior Analyst | Hillsdale, MI | 2014 |
| Brittany Duncan, LVN | 1477057776 | Licensed Practical Nurse | Vernon, TX | 2018 |
| Brittany Duncan, MD | 1700671039 | Student in an Organized Health Care Education/Training Program | Bronx, NY | 2025 |
| Brittany Duncan, PSY.D. | 1710588439 | Psychologist | Peachtree Corners, GA | 2020 |
| Brittany Duncan, COTA | 1952990186 | Occupational Therapy Assistant | Tulsa, OK | 2021 |
| Brittany Duncan | 1972105724 | Personal Care Attendant | Barboursville, WV | 2020 |
| Brittney Duncan, PMHNP | 1700759404 | Psychiatric/Mental Health Nurse Practitioner | Byhalia, MS | 2025 |
| Brittney Duncan, LPCA | 1912851346 | Mental Health Counselor | Pickens, SC | 2026 |
| Brook Duncan | 1982195392 | Behavior Analyst | Naples, FL | 2018 |
| Brooke Duncan, CRNP | 1083439400 | Nurse Practitioner | Philadelphia, PA | 2024 |
| Brooke Duncan, RD | 1124583604 | Registered Dietitian | Albany, OR | 2019 |
| Brooke Duncan, PA-C | 1265127518 | Physician Assistant | Rochester, NY | 2023 |
| Brooke Duncan | 1407688104 | Family Nurse Practitioner | Beckley, WV | 2024 |
| Brooke Duncan | 1477416675 | Behavior Technician | Rockville, MD | 2025 |
| Brooke Duncan | 1689431603 | Behavior Technician | Mount Dora, FL | 2024 |
| Brooke Duncan | 1932683174 | Addiction (Substance Use Disorder) Counselor | Marquette, MI | 2018 |
| Brooklyn Duncan | 1124978143 | Behavior Technician | Monrovia, CA | 2026 |
| Brooklynn Duncan | 1205631850 | Personal Care Attendant | Omaha, NE | 2025 |
| Bruce Duncan, CAC III | 1801290085 | Addiction (Substance Use Disorder) Counselor | Denver, CO | 2014 |
| Bruce Duncan, LMSW | 1891895520 | Clinical Social Worker | Romeo, MI | 2006 |
| Bruce Duncan, DC | 1932201191 | Chiropractor | Independence, MO | 2006 |
| Bruce Duncan, DC | 1942719604 | Rehabilitation Chiropractor | San Antonio, TX | 2017 |
| Bryan Duncan, L.P.C. | 1891937900 | Clinical Psychologist | Fort Worth, TX | 2009 |
| Bryan Duncan, PH.D. | 1972803682 | Psychologist | Bryan, TX | 2010 |
| Bryanna Duncan | 1336960673 | Mental Health Counselor | Harrisonburg, VA | 2024 |
| Bryce Duncan, DC | 1245041037 | Chiropractor | Bartow, FL | 2025 |
| Brylee Duncan, PA | 1750164463 | Physician Assistant | Santa Clara, CA | 2023 |
| Brynn Duncan, MD | 1275995904 | Student in an Organized Health Care Education/Training Program | Baltimore, MD | 2016 |
| Cailey Duncan | 1922567320 | Behavior Technician | Brea, CA | 2019 |
| Cailyn Duncan | 1346922549 | Athletic Trainer | Charlotte, NC | 2023 |
| Caitlin Duncan, LCSW, LAC | 1326581323 | Clinical Social Worker | Denver, CO | 2016 |
| Caitlin Duncan, RBT | 1437631207 | Behavior Technician | Colorado Springs, CO | 2018 |
| Caitlin Duncan | 1528635133 | Licensed Practical Nurse | Farmington Hills, MI | 2021 |
| Caleb Duncan, PHARMD | 1265875181 | Pharmacist | Tahlequah, OK | 2013 |
| Caleb Duncan | 1558155507 | Student in an Organized Health Care Education/Training Program | Charleston, WV | 2025 |
| Callie Duncan, CPNP | 1760909816 | Pediatric Nurse Practitioner | Crossville, TN | 2017 |
| Callie Duncan, RN, IBCLC | 1871338848 | Lactation Consultant (Registered Nurse) | Emporia, KS | 2024 |
| Calvin Duncan | 1265985345 | Mental Health Counselor | Deltona, FL | 2016 |
| Cameron Duncan | 1093527434 | Behavior Technician | Concord, CA | 2025 |
| Cameron Duncan | 1467200543 | Case Manager/Care Coordinator | Poteau, OK | 2024 |
| Cameron Duncan, DNP, APRN | 1629372800 | Psychiatric/Mental Health Nurse Practitioner | Reno, NV | 2011 |
| Cameron Duncan | 1750269718 | Assistant Behavior Analyst | Irving, TX | 2025 |
| Cameron Duncan | 1912834987 | Physician Assistant | Oklahoma City, OK | 2026 |
| Cameron Duncan | 1932682176 | Surgical Physician Assistant | Fresno, CA | 2018 |
| Cami Duncan, RBT | 1659032894 | Behavior Technician | Coffeyville, KS | 2022 |
| Camillya Duncan | 1710604640 | Behavior Technician | Bloomington, IN | 2022 |
| Camryn Duncan | 1790563880 | Social Worker | Knoxville, TN | 2023 |
| Candi Duncan, MP | 1063685642 | Specialist | Puyallup, WA | 2008 |
| Cara Duncan, COTA | 1588142822 | Occupational Therapy Assistant | Sulphur Springs, TX | 2018 |
| Carissa Duncan, RBT | 1114616372 | Behavior Technician | Stuart, FL | 2023 |
| Carl Duncan, MD | 1346237369 | Diagnostic Radiology Physician | Annapolis, MD | 2005 |
| Carl Duncan, M.D. | 1700835139 | Family Medicine Physician | Siloam Springs, AR | 2006 |
| Carla Duncan, APRN | 1134709041 | Family Nurse Practitioner | Erwin, TN | 2021 |
| Carla Duncan | 1508369075 | Case Manager/Care Coordinator | Cincinnati, OH | 2018 |
| Carla Duncan | 1528876406 | Case Manager/Care Coordinator | Huntsville, TN | 2024 |
| Carla Duncan, PT | 1922210608 | Physical Therapist | Monroe, GA | 2007 |
| Carlene Duncan, OTR | 1194848010 | Occupational Therapist | Elkhart, IN | 2007 |
| Carley Duncan | 1972488955 | Behavior Analyst | Evans, GA | 2025 |
| Carly Duncan | 1124750278 | Family Nurse Practitioner | Shepherd, TX | 2022 |
| Carly Duncan, PHARMD | 1861159360 | Pharmacist | Miami, FL | 2021 |
| Carly Duncan | 1992556849 | Student in an Organized Health Care Education/Training Program | Birmingham, AL | 2024 |
| Carmella Duncan | 1578113320 | Attendant Care Provider | Prescott, AZ | 2019 |
| Carmen Duncan, NP | 1659154011 | Family Nurse Practitioner | Valdosta, GA | 2023 |
| Carmen Duncan | 1750218764 | Specialist | Brooklyn, NY | 2026 |
| Carney Duncan | 1669889259 | Case Manager/Care Coordinator | Stilwell, OK | 2014 |
| Carol Duncan, LMT | 1669070587 | Massage Therapist | Sutherlin, OR | 2020 |
| Carol Duncan | 1780527796 | Massage Therapist | Portland, OR | 2026 |
| Caroline Duncan | 1730761941 | Behavior Technician | Overland Park, KS | 2021 |
| Caroline Duncan, MD | 1811424880 | Student in an Organized Health Care Education/Training Program | Greenville, NC | 2017 |
| Carolyn Duncan, LVN | 1033733597 | Licensed Vocational Nurse | Arlington, TX | 2020 |
| Carolyn Duncan | 1093367740 | Driver | Cedar Hill, TX | 2019 |
| Carolyn Duncan, FNP | 1437695301 | Nurse Practitioner | Fairhaven, MA | 2017 |
| Carolyn Duncan, CPM, LDEM | 1740480474 | Midwife | Portland, OR | 2007 |
| Carrie Duncan, LPC | 1124961933 | Professional Counselor | Columbia, MO | 2026 |
| Carrie Duncan | 1215394465 | Critical Care Medicine Registered Nurse | Liberty, MO | 2016 |
| Carrie Duncan | 1275267817 | Registered Nurse | Fort Worth, TX | 2022 |
| Carrie Duncan, PHARM D | 1386057982 | Pharmacist | Mt Washington, KY | 2014 |
| Carrie Duncan, PHARM.D. | 1447773460 | Pharmacist | Hendersonville, TN | 2017 |
| Carrie Duncan, M.S., CCC-SLP | 1831418391 | Speech-Language Pathologist | Roswell, GA | 2010 |
| Carrissa Duncan, LMFT | 1679064091 | Marriage & Family Therapist | Roseville, CA | 2018 |
| Carter Duncan, MD | 1902486988 | Family Medicine Physician | Saint Paul, MN | 2021 |
| Cary Duncan, PHARM.D. | 1538324538 | Pharmacist | Memphis, TN | 2008 |
| Casandra Duncan | 1275369589 | Developmental Therapist | Marine, IL | 2024 |
| Casey Duncan, RCS | 1245750124 | Diagnostic Ultrasound Physician | Thibodaux, LA | 2017 |
| Casey Duncan, MD | 1487720942 | Radiation Oncology Physician | Effingham, IL | 2006 |
| Casey Duncan, APRN | 1679084826 | Family Nurse Practitioner | Salem, AR | 2017 |
| Casey Duncan, MD | 1962669978 | Surgical Oncology Physician | Houston, TX | 2008 |
| Cassadi Duncan | 1326632829 | Speech-Language Pathologist | Flagstaff, AZ | 2021 |
| Cassandra Duncan, FNP-C | 1760025142 | Family Nurse Practitioner | Meridian, ID | 2019 |
| Cassidy Duncan, PHARMD | 1770120016 | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | Northridge, CA | 2019 |
| Catherine Duncan, BSN, RN | 1104180918 | Administrator Registered Nurse | Saratoga Springs, NY | 2012 |
| Catherine Duncan, DPT | 1134645138 | Physical Therapist | Wilmington, NC | 2017 |
| Catherine Duncan, DVM | 1134934136 | General Practice Physician | Lake Wales, FL | 2025 |
| Catherine Duncan, MD | 1376227579 | Pediatrics Physician | Wichita, KS | 2023 |
| Catherine Duncan, BSW, MHRS | 1376611285 | Mental Health Counselor | San Jose, CA | 2006 |
| Catherine Duncan, DO | 1396778262 | Physical Medicine & Rehabilitation Physician | Apex, NC | 2006 |
| Catherine Duncan, D.C. | 1497746572 | Sports Physician Chiropractor | Philadelphia, PA | 2005 |
| Catherine Duncan, LM,CPM | 1558090415 | Midwife | Menasha, WI | 2022 |
| Catherine Duncan | 1669244703 | Family Nurse Practitioner | West Falls, NY | 2023 |
| Catherine Duncan | 1710460142 | Family Nurse Practitioner | Athens, OH | 2018 |
| Catherine Duncan, RECOVERY ASSISTANT | 1831446541 | Case Manager/Care Coordinator | Ash Flat, AR | 2012 |
| Catherine Duncan, PT | 1942381157 | Physical Therapist | Carrboro, NC | 2006 |
| Cathryn Duncan, PHARM D., RPH | 1144699208 | Pharmacist | Escalon, CA | 2015 |
| Cathy Duncan, NP | 1114179272 | Family Nurse Practitioner | Fredericksburg, VA | 2008 |
| Cathy Duncan | 1396349627 | Homemaker | Amherst, OH | 2020 |
| Cathy Duncan, FNP | 1437234184 | Family Nurse Practitioner | Denver, CO | 2006 |
| Cathy Duncan, LPC | 1679631832 | Mental Health Counselor | Apache Junction, AZ | 2006 |
| Cayla Duncan, RBT | 1982432027 | Behavior Technician | Jacksonville, FL | 2024 |
| Cecilia Duncan | 1275269391 | Midwife | La Canada Flintridge, CA | 2022 |
| Celeste Duncan | 1023702438 | Behavior Technician | Dearborn, MI | 2023 |
| Celeste Duncan, MS, OTR/L | 1629344817 | Pediatric Occupational Therapist | El Cerrito, CA | 2012 |
| Centel Duncan | 1598649550 | Home Health Aide | Omaha, NE | 2025 |
| Chad Duncan, LCSW | 1083627160 | Clinical Social Worker | Rogersville, TN | 2006 |
| Chad Duncan | 1619474319 | Anesthesiology Physician | Missoula, MT | 2018 |
| Chad Duncan, MHPP | 1659657203 | Case Manager/Care Coordinator | Harrison, AR | 2011 |
| Chadd Duncan, M.P.T. | 1164483624 | Specialist | Houma, LA | 2006 |
| Chanalee Duncan, RN | 1013263367 | Registered Nurse | North Babylon, NY | 2012 |
| Chanda Duncan, PA-C | 1356995450 | Physician Assistant | Albuquerque, NM | 2019 |
| Chandler Duncan | 1669332581 | Personal Care Attendant | Portland, OR | 2025 |
| Chanel Duncan | 1417581976 | Behavior Technician | Lakewood, CA | 2020 |
| Chanelle Duncan, PHARMD | 1164345666 | Pharmacist | Austin, TX | 2026 |
| Charde Duncan, REGISTERED NURSE | 1043646615 | Registered Nurse | New Orleans, LA | 2013 |
| Charissa Duncan, PHARMD | 1619300522 | Pharmacist | Centerville, OH | 2013 |
| Charlene Duncan | 1356014898 | Marriage & Family Therapist | Fairfield, CA | 2021 |
| Charlene Duncan | 1861213613 | Case Manager/Care Coordinator | Clearlake Oaks, CA | 2024 |
| Charles Duncan, DO | 1033413547 | Internal Medicine Physician | Dayton, OH | 2010 |
| Charles Duncan, MD | 1215932462 | Pulmonary Disease Physician | San Antonio, TX | 2005 |
| Charles Duncan, PT | 1316165871 | Physical Therapist | Spartanburg, SC | 2007 |
| Charles Duncan, MD | 1417948688 | Neurological Surgery Physician | New Haven, CT | 2005 |
| Charlesetta Duncan, LPC-A | 1366326043 | Mental Health Counselor | Smithville, TX | 2025 |
| Charline Duncan, LMHP, LCSW | 1295177103 | Mental Health Counselor | Omaha, NE | 2013 |
| Charlotte Duncan, RN BSN | 1104334986 | Home Health Registered Nurse | Old Bridge, NJ | 2018 |
| Charlton Duncan, PTA | 1255785176 | Physical Therapy Assistant | Schererville, IN | 2016 |
| Charlynn Duncan, CRNP | 1760429971 | Nurse Practitioner | Hershey, PA | 2006 |
| Charmaine Duncan | 1598539264 | Registered Nurse | Brooklyn, NY | 2023 |
| Chavonn Duncan | 1679258693 | Social Worker | Woodbridge, CT | 2023 |
| Chawntee Duncan | 1184329724 | Behavior Technician | Covington, WA | 2023 |
| Chekesha Duncan | 1033088711 | Mental Health Counselor | Pikesville, MD | 2025 |
| Chelsea Duncan, ASW | 1255858957 | Social Worker | Chico, CA | 2017 |
| Chelsea Duncan, LMSW | 1851885719 | Social Worker | Pittsburg, KS | 2018 |
| Chelsie Duncan, MS | 1467031161 | Addiction (Substance Use Disorder) Counselor | Chattanooga, TN | 2021 |
| Chenelle Duncan | 1073015301 | Mental Health Counselor | Corbin, KY | 2018 |
| Cherie Duncan, APRN | 1922648815 | Psychiatric/Mental Health Nurse Practitioner | Morrilton, AR | 2020 |
| Cheryl Duncan | 1215641360 | Addiction (Substance Use Disorder) Registered Nurse | Lexington, NC | 2023 |
| Cheryl Duncan, P.A. | 1891712774 | Physician Assistant | Shreveport, LA | 2006 |
| Cheyenne Duncan, APRN | 1053028779 | Pediatric Nurse Practitioner | Lubbock, TX | 2022 |
| Chiquita Duncan, LPC, LADC | 1689876211 | Professional Counselor | Ada, OK | 2007 |
| Chiquita Duncan, RBT | 1700614468 | Behavior Technician | Macon, GA | 2024 |
| Chris Duncan, BA | 1972963049 | Case Manager/Care Coordinator | Poteau, OK | 2016 |
| Christa Duncan | 1215476510 | Behavior Analyst | Tacoma, WA | 2017 |
| Christal Duncan, MD | 1669476578 | Obstetrics & Gynecology Physician | Yreka, CA | 2005 |
| Christian Duncan, DMD | 1114584190 | General Practice Dentistry | Murray, KY | 2019 |
| Christian Duncan | 1609572478 | Behavior Technician | Columbus, GA | 2023 |
| Christian Duncan | 1639927700 | Case Manager/Care Coordinator | Poteau, OK | 2024 |
| Christie Duncan | 1932828910 | Behavior Technician | Clarksville, TN | 2022 |
| Christina Duncan, LMSW | 1003481722 | Clinical Social Worker | New York, NY | 2021 |
| Christina Duncan, ARNP, FNP-BC | 1396293445 | Nurse Practitioner | Spokane, WA | 2016 |
| Christina Duncan, LPN PED PRIM NURSE | 1477941276 | Pastoral Counselor | Riverside, OH | 2014 |
| Christina Duncan, PHD | 1528180700 | Clinical Child & Adolescent Psychologist | Lowell, AR | 2007 |
| Christina Duncan | 1538008347 | Peer Specialist | Stilwell, OK | 2026 |
| Christina Duncan | 1700739703 | Attendant Care Provider | El Cajon, CA | 2026 |
| Christina Duncan | 1922805480 | Doula | Brooklyn, NY | 2025 |
| Christina Duncan, OTR/L | 1952938201 | Occupational Therapist | Cleveland, OH | 2020 |
| Christine Duncan, CRNA | 1083888564 | Certified Registered Nurse Anesthetist | Rochester, MN | 2008 |
| Christine Duncan, LMSW | 1184325482 | Social Worker | Cibolo, TX | 2023 |
| Christine Duncan, M.D. | 1306842497 | Obstetrics & Gynecology Physician | New Hyde Park, NY | 2005 |
| Christine Duncan, RN | 1336309467 | Registered Nurse | Middletown, CT | 2008 |
| Christine Duncan | 1346938644 | Behavior Technician | Papillion, NE | 2023 |
| Christine Duncan, M.D. | 1376583807 | Pediatric Hematology & Oncology Physician | Boston, MA | 2006 |
| Christine Duncan, D.C. | 1437560521 | Nutrition Chiropractor | Sioux Falls, SD | 2014 |
| Christine Duncan, RN, CNOR, CRNFA | 1467469809 | Surgical Physician Assistant | Plano, TX | 2006 |
| Christine Duncan | 1497723134 | Certified Registered Nurse Anesthetist | Greenville, SC | 2006 |
| Christine Duncan, M.D. | 1497730931 | Family Medicine Physician | St Louis Park, MN | 2005 |
| Christine Duncan, FNP | 1922602770 | Family Nurse Practitioner | Bellingham, WA | 2020 |
| Christopher Duncan, PT | 1104030501 | Physical Therapist | Tampa, FL | 2007 |
| Christopher Duncan, M.D. | 1164457974 | Gastroenterology Physician | Burien, WA | 2006 |
| Christopher Duncan, M.D. | 1245218155 | Anesthesiology Physician | Rochester, MN | 2006 |
| Christopher Duncan, MD | 1306263751 | Vascular & Interventional Radiology Physician | Philadelphia, PA | 2014 |
| Christopher Duncan | 1306456918 | Peer Specialist | Flint, MI | 2020 |
| Christopher Duncan, ATC, CES | 1346660255 | Athletic Trainer | Washington, DC | 2014 |
| Christopher Duncan, PHARM D | 1477923977 | Pharmacist | Evans, GA | 2015 |
| Christopher Duncan, MD | 1720376536 | Physical Medicine & Rehabilitation Physician | Salt Lake City, UT | 2011 |
| Christopher Duncan, MD | 1801464680 | Physical Medicine & Rehabilitation Physician | Charlottesville, VA | 2021 |
| Christopher Duncan, PA | 1891755260 | Surgical Physician Assistant | Kennebunk, ME | 2006 |
| Christopher Duncan | 1952262677 | Mental Health Counselor | Pendleton, OR | 2025 |
| Chuck Duncan, COTA | 1982890612 | Occupational Therapy Assistant | Spartanburg, SC | 2007 |
| Ciara Duncan | 1508678657 | Social Worker | McHenry, IL | 2025 |
| Ciara Duncan | 1679024004 | Clinical Social Worker | San Diego, CA | 2016 |
| Cierra Duncan | 1730973611 | Behavior Technician | Baton Rouge, LA | 2025 |
| Cindy Duncan | 1083804751 | Speech-Language Pathologist | Waterbury, CT | 2007 |
| Cindy Duncan | 1609492974 | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | Fresno, CA | 2020 |
| Cindy Duncan, PH.D. | 1740504380 | Clinical Psychologist | Reno, NV | 2010 |
| Cj Duncan, PT, DPT | 1114663895 | Physical Therapist | Whiteriver, AZ | 2022 |
| Claire Duncan | 1003703521 | School Psychologist | Midwest City, OK | 2025 |
| Claire Duncan, QMHP, LAPC | 1558097626 | Mental Health Counselor | Haverford, PA | 2022 |
| Clare Duncan, AU.D | 1245920875 | Audiologist | Rice Lake, WI | 2023 |
| Clare Duncan | 1801605324 | Professional Counselor | Jeannette, PA | 2024 |
| Clarence Duncan, LCSW | 1720226624 | Clinical Social Worker | Bronx, NY | 2009 |
| Clarine Duncan | 1881037349 | Licensed Practical Nurse | New York, NY | 2013 |
| Claudette Duncan, CCC-SLP | 1043836117 | Speech-Language Pathologist | Harrisonburg, VA | 2020 |
| Claudia Duncan, DO | 1699877522 | Family Medicine Physician | Hurricane, WV | 2006 |
| Clifton Duncan, CNP | 1699384321 | Family Nurse Practitioner | Ruidoso, NM | 2020 |
| Clint Duncan | 1245063734 | Personal Care Attendant | Barboursville, WV | 2024 |
| Clinton Duncan | 1679285704 | Peer Specialist | Roseburg, OR | 2022 |
| Clinton Duncan, P.A. | 1689632085 | Surgical Physician Assistant | Mobile, AL | 2006 |
| Clinton Duncan, M.D. | 1770894776 | Ophthalmology Physician | Cedar City, UT | 2010 |
| Colby Duncan, M.D. | 1710391891 | Emergency Medicine Physician | Roosevelt, UT | 2014 |
| Cole Duncan, PSY.D. | 1952012957 | Clinical Psychologist | Darien, CT | 2022 |
| Cole Duncan, DMD | 1982446449 | General Practice Dentistry | Rogers, AR | 2024 |
| Coley Duncan, MD | 1720135601 | Infectious Disease Physician | Rochester, NY | 2007 |
| Coline Duncan, MA | 1356189351 | Mental Health Counselor | Waukegan, IL | 2024 |
| Colis Duncan | 1649788829 | Behavior Technician | Lauderhill, FL | 2018 |
| Colleen Duncan, RD | 1174866123 | Registered Dietitian | Austin, TX | 2013 |
| Colleen Duncan, NP | 1285525410 | Women's Health Nurse Practitioner | Mount Vernon, WA | 2025 |
| Colleen Duncan | 1346873585 | Licensed Vocational Nurse | Killeen, TX | 2020 |
| Colleen Duncan | 1437785391 | Behavior Technician | Rocklin, CA | 2020 |
| Colleen Duncan, CNS | 1902570286 | Adult Health Clinical Nurse Specialist | Columbus, OH | 2021 |
| Colleen Duncan | 1962828848 | Specialist | Gresham, OR | 2014 |
| Colton Duncan | 1932997459 | Student in an Organized Health Care Education/Training Program | Chapel Hill, NC | 2025 |
| Connie Duncan | 1215221718 | Hearing Instrument Specialist | Blairsville, GA | 2011 |
| Connie Duncan | 1306102223 | Specialist | Taos, NM | 2012 |
| Connie Duncan, LCSW | 1497849749 | Clinical Social Worker | Vienna, IL | 2006 |
| Connie Duncan | 1851183784 | Registered Nurse | Muskogee, OK | 2025 |
| Connor Duncan | 1154263754 | Student in an Organized Health Care Education/Training Program | La Crosse, WI | 2026 |
| Conrad Duncan, M.D. | 1154390714 | Gynecology Physician | Baltimore, MD | 2006 |
| Constance Duncan | 1639007107 | Case Manager/Care Coordinator | Bluefield, WV | 2026 |
| Contessa Duncan | 1639439052 | Behavior Analyst | Edmond, OK | 2012 |
| Corinne Duncan, MD | 1417535683 | Student in an Organized Health Care Education/Training Program | Minneapolis, MN | 2021 |
| Corinne Duncan, NP | 1487974374 | Primary Care Nurse Practitioner | San Francisco, CA | 2010 |
| Cornelius Duncan, CTRS | 1316536899 | Recreation Therapist | Dublin, GA | 2021 |
| Corwin Duncan | 1568990521 | Counselor | Thornton, CO | 2017 |
| Cory Duncan, MD | 1699719864 | Emergency Medicine Physician | Gainesville, GA | 2006 |
| Cory Duncan, M.D. | 1811333826 | Family Medicine Physician | Jacksonville, FL | 2013 |
| Counselor Doretha Duncan, COUNSELOR | 1942146055 | Addiction (Substance Use Disorder) Counselor | Houston, TX | 2026 |
| Courtney Duncan, DO, MBA | 1629539176 | Pediatric Critical Care Medicine Physician | Orlando, FL | 2019 |
| Courtney Duncan | 1679043731 | Case Manager/Care Coordinator | Lecompte, LA | 2018 |
| Courtney Duncan, MA CCC-SLP | 1689300980 | Speech-Language Pathologist | Apple Creek, OH | 2022 |
| Courtney Duncan, MA, CADC | 1811747322 | Addiction (Substance Use Disorder) Counselor | Newark, NJ | 2024 |
| Courtney Duncan | 1922966829 | Behavior Technician | Overland Park, KS | 2026 |
| Craig Duncan | 1174204507 | Addiction (Substance Use Disorder) Counselor | Cleveland, OH | 2023 |
| Craig Duncan, D.O. | 1275540544 | Surgery Physician | Cheboygan, MI | 2006 |
| Craig Duncan, DDS | 1295937597 | Dentist | Algonquin, IL | 2007 |
| Crashonda Duncan, MFTA | 1336641398 | Marriage & Family Therapist | Louisville, KY | 2018 |
| Crista Duncan, AU.D., CCC-A, F-AAA | 1609052836 | Audiologist-Hearing Aid Fitter | Knoxville, TN | 2008 |
| Crystal Duncan | 1093452252 | Behavior Technician | Turlock, CA | 2022 |
| Crystal Duncan, MSW, ASW | 1417025222 | Professional Counselor | San Diego, CA | 2006 |
| Crystal Duncan | 1447918644 | Other Technician | Matthews, NC | 2021 |
| Crystal Duncan, MS | 1548556277 | Mental Health Counselor | Tampa, FL | 2011 |
| Crystal Duncan, LMT | 1629577341 | Massage Therapist | Jacksonville, FL | 2018 |
| Crystal Duncan, CRNP | 1891293932 | Adult Health Nurse Practitioner | Pensacola, FL | 2018 |
| Crystal Duncan, LMSW | 1982385126 | Social Worker | Traverse City, MI | 2023 |
| Curtis Duncan, MD | 1821787201 | Anesthesiology Physician | Tucson, AZ | 2023 |
| Cynthia Duncan | 1013547413 | Registered Nurse | Colorado Springs, CO | 2020 |
| Cynthia Duncan, BS | 1194040774 | Case Manager/Care Coordinator | Kingsport, TN | 2010 |
| Cynthia Duncan, RN | 1225379217 | School Registered Nurse | Greenville, SC | 2013 |
| Cynthia Duncan, B.S. | 1790236776 | Mental Health Counselor | Shreveport, LA | 2016 |
| Cynthia Duncan, P.T. | 1861857443 | Physical Therapist | Redding, CA | 2015 |
| Cynthia Duncan, MS, APRN, BC | 1972671634 | Psychiatric/Mental Health Clinical Nurse Specialist | Tyrone, GA | 2006 |
| Cynthia Duncan, LPN | 1972729911 | Licensed Practical Nurse | Nashville, TN | 2007 |
| Dahdrian Duncan, ED.S, LPC | 1043765357 | Professional Counselor | San Antonio, TX | 2016 |
| Daisha Duncan | 1952025827 | Behavior Technician | Monrovia, CA | 2022 |
| Dale Duncan, DDS | 1154483626 | Oral and Maxillofacial Surgery (Dentist) | Alpharetta, GA | 2006 |
| Dale Duncan, MD | 1679578009 | Radiation Oncology Physician | Greenville, SC | 2005 |
| Dallin Duncan, DDS | 1609502079 | Dentist | Fort Cavazos, TX | 2022 |
| Dameca Duncan | 1720889512 | Behavior Technician | Monrovia, CA | 2025 |
| Dameon Duncan, MD, MBA | 1780908368 | Diagnostic Radiology Physician | Cleveland, OH | 2010 |
| Dan Duncan, PA-C | 1639263239 | Surgical Physician Assistant | Fort Harrison, MT | 2006 |
| Dana Duncan | 1205206083 | Massage Therapist | Makawao, HI | 2015 |
| Dana Duncan | 1275140931 | Community Health Worker | Prestonsburg, KY | 2020 |
| Dana Duncan, CRNP | 1417624313 | Primary Care Nurse Practitioner | Glenn Dale, MD | 2021 |
| Dana Duncan, MA, CCC-SLP | 1669036083 | Speech-Language Pathologist | Waconia, MN | 2019 |
| Dana Duncan, MD | 1700849122 | Pediatrics Physician | San Jose, CA | 2006 |
| Dana Duncan, LCSW | 1780694406 | Clinical Social Worker | Abingdon, VA | 2006 |
| Dana Duncan, LABORATORY ASSISTANT | 1821878844 | Technician | Las Vegas, NV | 2023 |
| Daneisha Duncan | 1679371678 | Behavior Technician | Indianapolis, IN | 2025 |
| Daniel Duncan | 1003284498 | Anesthesiologist Assistant | Fayetteville, GA | 2015 |
| Daniel Duncan, MD | 1093035701 | Student in an Organized Health Care Education/Training Program | Chapel Hill, NC | 2010 |
| Daniel Duncan, MOT | 1225162944 | Occupational Therapist | Indianapolis, IN | 2007 |
| Daniel Duncan, M.D. | 1396011227 | Pediatric Gastroenterology Physician | Boston, MA | 2012 |
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).