Providers Katherine Duff, PA-C to Branden Duffey, D.O.
300 individual NPIs in the federal registry, part 5,854 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. 98 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Katherine Duff, PA-C | 1053482950 | Surgical Physician Assistant | Roanoke, VA | 2006 |
| Katherine Duff, OD | 1124956909 | Student in an Organized Health Care Education/Training Program | White River Junction, VT | 2026 |
| Katie Duff | 1033944483 | Social Worker | Auburn, WA | 2024 |
| Katie Duff | 1205400348 | Occupational Therapy Assistant | Rosemount, MN | 2021 |
| Katie Duff, AUD | 1750925319 | Audiologist-Hearing Aid Fitter | Fayetteville, NY | 2019 |
| Katrina Duff | 1053233973 | Acute Care Nurse Practitioner | Bumpass, VA | 2026 |
| Kay Duff | 1316254758 | Addiction (Substance Use Disorder) Counselor | Everett, WA | 2010 |
| Kayla Duff | 1093424038 | Behavior Technician | Richmond, VA | 2022 |
| Kayla Duff, OTD, OTR | 1144023169 | Occupational Therapist | North Vernon, IN | 2025 |
| Kayla Duff, PA-C | 1851108344 | Physician Assistant | West Des Moines, IA | 2024 |
| Keitra Duff, BS | 1790303980 | Behavior Technician | Fort Wayne, IN | 2020 |
| Kelly Duff, M.S.W. | 1649713223 | Clinical Social Worker | Wynantskill, NY | 2016 |
| Kelly Duff, COTA/L | 1699940098 | Occupational Therapy Assistant | Columbia, TN | 2008 |
| Kelsey Duff, DMD | 1508228727 | Pediatric Dentistry | Lexington, KY | 2016 |
| Kenneth Duff, M.D. | 1750310066 | Diagnostic Radiology Physician | Hattiesburg, MS | 2006 |
| Kenny Duff | 1568524056 | General Practice Dentistry | Fort Smith, AR | 2006 |
| Kerin Duff, MS, CCC-SLP | 1710212345 | Speech-Language Pathologist | King Ferry, NY | 2009 |
| Ketlin Duff | 1043001027 | Massage Therapist | Maryville, TN | 2025 |
| Kevin Duff, PHD | 1295720969 | Clinical Neuropsychologist | Portland, OR | 2005 |
| Kevin Duff, CRNA | 1982942793 | Certified Registered Nurse Anesthetist | Albany, GA | 2013 |
| Kimberly Duff | 1285496265 | Student in an Organized Health Care Education/Training Program | Jackson, AL | 2024 |
| Kimberly Duff, LPC, CRC | 1649633728 | Professional Counselor | Cartersville, GA | 2016 |
| Kristi Duff | 1144714452 | Social Worker | Benton, AR | 2018 |
| Kristina Duff | 1831651363 | Behavior Technician | Portland, ME | 2019 |
| Kyle Duff | 1689052920 | Family Medicine Physician | Washington, PA | 2015 |
| Lacey Duff, PTA | 1194504936 | Physical Therapy Assistant | Cumming, GA | 2023 |
| Lara Duff, IMF 76982 | 1760747885 | Marriage & Family Therapist | San Diego, CA | 2012 |
| Latoya Duff, BSW, QMHP | 1245948827 | Mental Health Counselor | Newport News, VA | 2022 |
| Lauren Duff | 1336616598 | Physical Therapy Assistant | Carson City, NV | 2018 |
| Lauren Duff | 1952879074 | Psychologist | Fort Collins, CO | 2018 |
| Laurie Duff, CRNA | 1356559280 | Certified Registered Nurse Anesthetist | Omak, WA | 2007 |
| Leonard Duff, DC | 1801826623 | Chiropractor | Silverhill, AL | 2006 |
| Leslie Duff, APRN | 1366902223 | Psychiatric/Mental Health Nurse Practitioner | Beattyville, KY | 2019 |
| Leslie Duff, L.C.S.W | 1447593090 | Clinical Social Worker | Glen Ellyn, IL | 2013 |
| Leslie Duff, LCSWA | 1487094652 | Clinical Social Worker | Mooresville, NC | 2013 |
| Lilly Duff | 1023907771 | Behavior Technician | Tacoma, WA | 2025 |
| Linda Duff | 1659517738 | Speech-Language Pathologist | Cranberry Twp, PA | 2008 |
| Lindsay Duff, NP | 1912253246 | Adult Health Nurse Practitioner | Damariscotta, ME | 2012 |
| Lisa Duff | 1275090615 | Physical Therapist | Houlton, ME | 2019 |
| Logan Duff | 1073252136 | Behavior Technician | Plymouth, MI | 2022 |
| Madelyn Duff | 1700623956 | Behavior Technician | Doylestown, PA | 2024 |
| Madison Duff, OTR/L | 1760315931 | Occupational Therapist | Skokie, IL | 2026 |
| Makayla Duff | 1902757677 | Mental Health Counselor | Winterset, IA | 2026 |
| Margaret Duff, M.A., CCC-SLP | 1154408524 | Speech-Language Pathologist | Cleveland, OH | 2006 |
| Margaret Duff, RN | 1598266496 | School Registered Nurse | Nashville, TN | 2018 |
| Maria Duff, D.D.S. | 1649330861 | General Practice Dentistry | Staten Island, NY | 2006 |
| Marie Duff, MS | 1487032678 | Mental Health Counselor | Eugene, OR | 2015 |
| Marilyn Duff, MHPP | 1457683161 | Case Manager/Care Coordinator | Springdale, AR | 2010 |
| Marilyn Duff, MSW, LICSW | 1871606814 | Clinical Social Worker | Tacoma, WA | 2006 |
| Mark Duff | 1457210684 | Wound Care Registered Nurse | Salem, VA | 2026 |
| Mark Duff, DO | 1992782031 | Family Medicine Physician | Buckeye, WV | 2005 |
| Marlin Duff, D.M.D. | 1144439308 | General Practice Dentistry | Memphis, TN | 2007 |
| Mary Duff, ARNP | 1013987585 | Nurse Practitioner | Coeur D Alene, ID | 2006 |
| Mary Duff, RDN, LDN | 1902526601 | Registered Dietitian | Springfield, MO | 2022 |
| Mary Duff, MD | 1952410862 | Obstetrics & Gynecology Physician | Springfield, MO | 2006 |
| Mason Duff, D.M.D. | 1912380577 | Dentist | Las Vegas, NV | 2015 |
| Mathew Duff | 1437047198 | Personal Care Attendant | Fairmont, WV | 2025 |
| Matthew Duff | 1558909226 | Family Nurse Practitioner | Redlands, CA | 2019 |
| Matthew Duff, DPT, PT | 1700379567 | Physical Therapist | Mount Airy, MD | 2018 |
| Matthew Duff, PHARMD | 1821682105 | Pharmacist | Miami, FL | 2021 |
| Maxwell Duff | 1407477433 | Student in an Organized Health Care Education/Training Program | Louisville, KY | 2020 |
| McKenna Duff, RN,BSN | 1053988352 | Medical-Surgical Registered Nurse | Newton, IA | 2021 |
| Mechelle Duff | 1659973931 | Home Health Aide | Ashford, WV | 2020 |
| Megan Duff, M.A. | 1366989956 | Professional Counselor | Independence, MO | 2017 |
| Melinda Duff, PA-C | 1295737815 | Surgical Physician Assistant | Troy, OH | 2005 |
| Melissa Duff, PT | 1497580336 | Physical Therapist | Holmesville, OH | 2024 |
| Melodie Duff, APRN | 1497150387 | Family Nurse Practitioner | El Reno, OK | 2014 |
| Michael Duff, PT | 1053358051 | Physical Therapist | Auburn, ME | 2006 |
| Michael Duff, M.D. | 1083648646 | Radiation Oncology Physician | Cheektowaga, NY | 2006 |
| Michael Duff, IDC | 1730524257 | Independent Duty Corpsman | Pearl City, HI | 2013 |
| Michael Duff, M.D. | 1952622771 | Internal Medicine Physician | Staten Island, NY | 2010 |
| Miranda Duff | 1558130096 | Peer Specialist | Seattle, WA | 2023 |
| Mystique Duff | 1992491476 | Personal Care Attendant | Bellevue, OH | 2023 |
| Natalie Duff, LCSW, BACS | 1932445210 | Clinical Social Worker | Breaux Bridge, LA | 2012 |
| Nathan Duff, MED, LPC | 1831540509 | Mental Health Counselor | Lynchburg, VA | 2016 |
| Nathaniel Duff, PA-C | 1629051925 | Surgical Physician Assistant | Tripler Army Medical Center, HI | 2005 |
| Nell Duff, LCSW | 1750392221 | Clinical Social Worker | Norfolk, VA | 2006 |
| Nicholas Duff, MS, CF-SLP | 1093486144 | Speech-Language Pathologist | Cincinnati, OH | 2021 |
| Nicholas Duff, MD | 1194301010 | Hospitalist Physician | Greenwood Village, CO | 2021 |
| Nichole Duff | 1801627005 | Community Health Worker | Gillette, WY | 2024 |
| Nickolas Duff | 1275329260 | Student in an Organized Health Care Education/Training Program | Detroit, MI | 2025 |
| Nicole Duff | 1750775110 | Professional Counselor | Dayton, OH | 2015 |
| Norman Duff, NA, AAC | 1225195167 | Mental Health Counselor | Seattle, WA | 2007 |
| Olivia Duff, MD | 1336990811 | Psychiatry Physician | New Orleans, LA | 2024 |
| Pamela Duff, M.D. | 1275696940 | Pediatrics Physician | Richmond, VA | 2006 |
| Pamela Duff, MS, RMHCI | 1790353092 | Mental Health Counselor | Maitland, FL | 2021 |
| Patricia Duff, ANP | 1043609647 | Adult Health Nurse Practitioner | Lanham, MD | 2015 |
| Patricia Duff, APRN | 1093822603 | Nurse Practitioner | New Haven, CT | 2006 |
| Patrick Duff, MD | 1659876332 | Pediatrics Physician | Nashua, NH | 2018 |
| Paul Duff, CSW | 1548226392 | Clinical Social Worker | Lansing, MI | 2006 |
| Paul Duff | 1821092503 | Medical Physician Assistant | Orange Park, FL | 2005 |
| Paula Duff, APRN | 1356012611 | Family Nurse Practitioner | Des Plaines, IL | 2021 |
| Qiana Duff | 1578385977 | Behavior Technician | Evansville, IN | 2024 |
| Rachel Duff, OT | 1174042618 | Pediatric Occupational Therapist | San Antonio, TX | 2017 |
| Rachel Duff, RN | 1215699509 | Certified Registered Nurse Anesthetist | Nashville, TN | 2021 |
| Rachel Duff, PT | 1275901365 | Physical Therapist | Ann Arbor, MI | 2015 |
| Ramona Duff | 1710067558 | Physical Therapist | Libertyville, IL | 2006 |
| Rance Duff | 1477311991 | Counselor | Corrigan, TX | 2024 |
| Rebecca Duff, MD | 1346377769 | Dermatology Physician | Hattiesburg, MS | 2007 |
| Rebecca Duff, RN | 1568255594 | Registered Nurse | Commerce City, CO | 2025 |
| Rebecca Duff, CDCA | 1851275978 | Addiction (Substance Use Disorder) Counselor | Akron, OH | 2025 |
| Rebecca Duff, LCSW | 1861088916 | Clinical Social Worker | Buckhorn, KY | 2020 |
| Rebecca Duff, FNP-C | 1902738701 | Ambulatory Care Registered Nurse | East Greenwich, RI | 2026 |
| Renee Duff, DDS | 1467576686 | Dentist | Ann Arbor, MI | 2007 |
| Rhiannon Duff, PTA | 1568736171 | Physical Therapy Assistant | Chicago, IL | 2012 |
| Richard Duff, D.C. | 1124159918 | Chiropractor | San Francisco, CA | 2007 |
| Richard Duff, M.D. | 1447392444 | Pulmonary Disease Physician | Myrtle Beach, SC | 2007 |
| Richard Duff, M.D. | 1699868612 | Obstetrics & Gynecology Physician | Rochester, MI | 2006 |
| Robert Duff, PH.D. | 1083149769 | Clinical Neuropsychologist | Camarillo, CA | 2017 |
| Robert Duff, MD | 1265475727 | Neurology Physician | Springfield, MO | 2006 |
| Robert Duff, M. D. | 1629153259 | Pediatric Adolescent Medicine Physician | Manhattan, KS | 2006 |
| Robert Duff, NP | 1801089255 | Geriatric Medicine (Family Medicine) Physician | Sierra Vista, AZ | 2007 |
| Rockell Duff | 1720627417 | Professional Counselor | Houston, TX | 2019 |
| Rodney Duff, MD | 1609864107 | Emergency Medicine Physician | Kansas City, MO | 2005 |
| Ryan Duff, MD | 1043802929 | Internal Medicine Physician | San Antonio, TX | 2021 |
| Ryan Duff, MSW | 1700709466 | Social Worker | Lawrence, KS | 2026 |
| Ryan Duff, PHARMD | 1740595149 | Pharmacist | Fort Fairfield, ME | 2010 |
| Ryan Duff | 1821944117 | Other Technician | Lapeer, MI | 2026 |
| Ryan Duff | 1851888291 | Other Technician | North Hollywood, CA | 2018 |
| Ryan Duff | 1942730288 | Registered Nurse | Zanesville, OH | 2017 |
| Samantha Duff, OTD, OTR/L | 1568940633 | Occupational Therapist | Murray, UT | 2018 |
| Sara Duff, LAB DIRECTOR, CPT | 1376279661 | Phlebotomy Technician | Hillsboro, IL | 2022 |
| Sarah Duff, MD | 1417480153 | Pediatric Ophthalmology and Strabismus Specialist Physician | Louisville, KY | 2017 |
| Sarah Duff | 1538480512 | Developmental Therapist | Framingham, MA | 2010 |
| Scott Duff, DMD | 1528117710 | General Practice Dentistry | Jupiter, FL | 2007 |
| Sevan Duff, MD | 1659571305 | Hospitalist Physician | Detroit, MI | 2007 |
| Shelly Duff, RN | 1083971873 | Plastic Surgery Registered Nurse | Colorado Springs, CO | 2012 |
| Sibby Duff, APRN | 1497088058 | Neonatal Nurse Practitioner | Lexington, KY | 2009 |
| Siobhan Duff, MD | 1588638910 | Family Medicine Physician | Chattanooga, TN | 2006 |
| Stephanie Duff | 1396365748 | Speech-Language Pathologist | Brookhaven, NY | 2020 |
| Stephanie Duff, RN | 1679424303 | Infusion Therapy Registered Nurse | Earlham, IA | 2026 |
| Stephanie Duff, NP | 1851076251 | Family Nurse Practitioner | Twin Falls, ID | 2023 |
| Steven Duff | 1366110728 | Behavior Technician | Orange, CA | 2021 |
| Steven Duff, LPCC-S | 1386128676 | Mental Health Counselor | Lexington, KY | 2018 |
| Steven Duff, M.D. | 1518966506 | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | Columbus, OH | 2005 |
| Susan Duff, EDD, PT, OT, CHT | 1619209921 | Physical Therapist | Wyndmoor, PA | 2010 |
| Suzanne Duff, LMHC | 1104126796 | Mental Health Counselor | Riviera Beach, FL | 2010 |
| Takai Duff, FNP | 1083181002 | Family Nurse Practitioner | Columbus, OH | 2018 |
| Tamara Duff | 1295375624 | Registered Nurse | Hobbs, NM | 2020 |
| Tamara Duff, NP-C | 1487199329 | Family Nurse Practitioner | Waterford, MI | 2017 |
| Tamara Duff, RBT | 1851926174 | Behavior Analyst | Lexington, KY | 2020 |
| Tashan Duff, PT | 1942754791 | Physical Therapist | Charlotte, NC | 2016 |
| Taylor Duff | 1114887239 | Behavior Technician | Colorado Springs, CO | 2025 |
| Taylor Duff, PT, DPT | 1699627018 | Physical Therapist | Arnold, MO | 2026 |
| Taylor Duff, DO | 1962151233 | Internal Medicine Physician | Bloomington, IN | 2022 |
| Tequell Duff | 1922634146 | Behavior Technician | Southlake, TX | 2020 |
| Thomas Duff | 1053491076 | Pediatrics Physician | Latham, NY | 2006 |
| Thomas Duff, DO | 1295782563 | Emergency Medicine Physician | Thomson, GA | 2006 |
| Thomas Duff, DO | 1326302449 | Hospitalist Physician | Twin Falls, ID | 2012 |
| Thomas Duff, DO | 1326421728 | Emergency Medicine Physician | Damariscotta, ME | 2015 |
| Thomas Duff, RPH | 1548861412 | Pharmacist | Roanoke, VA | 2020 |
| Timothy Duff, DPT | 1396191573 | Physical Therapist | Fort Moore, GA | 2016 |
| Tom Duff, LCSW | 1467771907 | Clinical Social Worker | Mount Vernon, IL | 2010 |
| Tonya Duff | 1043811342 | Pharmacist | Roanoke, VA | 2020 |
| Trenten Duff, CCAPP | 1740054121 | Peer Specialist | Santa Ana, CA | 2023 |
| Valentine Duff, RRT, RCP | 1083222087 | Registered Respiratory Therapist | Vacaville, CA | 2020 |
| Valerie Duff, DO | 1023226131 | Family Medicine Physician | Kansas City, MO | 2007 |
| Valerie Duff, CNA | 1417176215 | Nurse's Aide | Woodbine, NJ | 2007 |
| Valerie Duff, LCSW | 1457725459 | Clinical Social Worker | Mount Vernon, IL | 2015 |
| Vanessa Duff | 1518626910 | Speech-Language Pathologist | Garden Grove, CA | 2021 |
| Vidya Duff, LCSW | 1548448160 | Clinical Social Worker | Aurora, CO | 2008 |
| W Duff, MD | 1285655985 | Obstetrics & Gynecology Physician | Gainesville, FL | 2006 |
| Wallace Duff, M.D. | 1467446799 | Specialist | Omaha, NE | 2005 |
| William Duff, MD | 1083723944 | Undersea and Hyperbaric Medicine (Preventive Medicine) Physician | Osage Beach, MO | 2006 |
| William Duff, M.A. LPC | 1134351869 | Mental Health Counselor | Tucson, AZ | 2009 |
| William Duff, ABOM, NCLEM,CLSAF | 1295419661 | Contact Lens Fitter | Lexington, KY | 2023 |
| William Duff, MD | 1366446213 | Nephrology Physician | Louisville, KY | 2005 |
| William Duff, MD | 1447492954 | Specialist | Portland, OR | 2009 |
| William Duff, RPA-C | 1780603456 | Medical Physician Assistant | Prescott, AZ | 2006 |
| Zakira Duff | 1598396780 | Clinical Social Worker | Austin, TX | 2020 |
| Kristin Duff Carlini, PA-C | 1891702353 | Surgical Physician Assistant | Arlington, VA | 2006 |
| Eternity Duff Edlow | 1467263764 | Behavior Technician | Melville, NY | 2025 |
| Courtney Duff Harrison, O.T. | 1104944156 | Occupational Therapist | Tuscaloosa, AL | 2007 |
| Erin Duff Nailor | 1477807683 | Specialist | Danbury, CT | 2012 |
| Nancy Duff-Boehm, PH.D. | 1730105362 | Clinical Psychologist | North Olmsted, OH | 2006 |
| Diane Duff-Davis | 1861275471 | Case Manager/Care Coordinator | Cleburne, TX | 2023 |
| Patricia Duff-Fleming | 1194336586 | Mental Health Counselor | Daytona Beach, FL | 2020 |
| Mauritana Duff-Griffith, QBHP | 1760168926 | Case Manager/Care Coordinator | Little Rock, AR | 2023 |
| Susan Duff-Harvey, MS-CCC-SLP | 1235415431 | Speech-Language Pathologist | Goshen, NY | 2011 |
| Gail Duffala | 1932501335 | Dentist | San Francisco, CA | 2014 |
| Ashley Duffalo, CRNA | 1740841378 | Certified Registered Nurse Anesthetist | Pittsburgh, PA | 2019 |
| Chad Duffalo, M.D. | 1639339484 | Infectious Disease Physician | Newark, DE | 2008 |
| Lynnae Duffalo, MD | 1881857761 | Internal Medicine Physician | Newark, DE | 2008 |
| Adrienne Duffany, CSW | 1134220635 | Clinical Social Worker | Provo, UT | 2006 |
| Elizabeth Duffany, M.S.P.T. | 1083835094 | Physical Therapist | Lynn, MA | 2007 |
| Heather Duffany | 1568778850 | Behavior Analyst | Pocasset, MA | 2010 |
| Joanne Duffany, PT | 1780643064 | Physical Therapist | Dearborn, MI | 2006 |
| Kahlen Duffany | 1497214951 | Behavior Technician | Farmington Hills, MI | 2019 |
| Kimberly Duffany, LPN | 1780331751 | Licensed Practical Nurse | Wilbraham, MA | 2022 |
| Krysta Duffany, CTRS | 1093525933 | Recreation Therapist | Troy, MI | 2025 |
| Maria Duffany | 1972478444 | Behavior Analyst | Watervliet, NY | 2025 |
| Meghan Duffany | 1679905921 | Women's Health Nurse Practitioner | Boston, MA | 2013 |
| Shannon Duffany, LLPC | 1972998342 | Mental Health Counselor | Ann Arbor, MI | 2015 |
| Susanna Duffany, PTA | 1851570840 | Community Health Worker | Vero Beach, FL | 2007 |
| Taylor Duffany | 1457184897 | Mental Health Counselor | Pottstown, PA | 2024 |
| Samantha Duffard | 1013701960 | Peer Specialist | Portland, OR | 2025 |
| Jeannette Duffau, RN | 1679705529 | Registered Nurse | Olivebridge, NY | 2009 |
| Antoine Duffaut, STUDENT | 1134910490 | Student in an Organized Health Care Education/Training Program | Roslindale, MA | 2025 |
| Calvin Duffaut, M.D. | 1497056154 | Pediatrics Physician | Santa Monica, CA | 2010 |
| Destiny Duffaut | 1497470512 | Behavior Technician | Monrovia, CA | 2022 |
| Neishah Duffaut, APN | 1538048939 | Acute Care Nurse Practitioner | Bronx, NY | 2025 |
| Kathleen Duffe | 1851840474 | Speech-Language Pathologist | Westfield, NJ | 2016 |
| Lyndsay Duffe, CNM | 1073282026 | Advanced Practice Midwife | Saint Louis, MO | 2021 |
| Michael Duffe, RPAC | 1407842719 | Physician Assistant | Lake Success, NY | 2005 |
| Michelle Duffe, CGC | 1558235754 | Genetic Counselor (M.S.) | Great Neck, NY | 2025 |
| Daniel Duffeck | 1144842410 | Case Manager/Care Coordinator | Van Nuys, CA | 2020 |
| Jennifer Duffecy, PH.D. | 1881918514 | Clinical Psychologist | Chicago, IL | 2010 |
| Aaron Duffee | 1992118996 | Occupational Therapy Assistant | Robbinsdale, MN | 2014 |
| Alexandra Duffee | 1306255971 | Specialist | New York, NY | 2014 |
| Andrew Duffee, M.D. | 1811029580 | Orthopaedic Surgery Physician | Shelbyville, KY | 2007 |
| Belinda Duffee, MS, OTR | 1487842050 | Occupational Therapist | Portage, IN | 2007 |
| Caleb Duffee | 1962354928 | Physical Therapy Assistant | Sylacauga, AL | 2026 |
| Caroline Duffee, PT | 1083404305 | Physical Therapist | Huntsville, AL | 2025 |
| Christina Duffee, RBT | 1487221271 | Behavior Technician | Lafayette, IN | 2021 |
| Christina Duffee | 1972744787 | Massage Therapist | Merritt Island, FL | 2009 |
| Douglas Duffee, M.D. | 1851372320 | Internal Medicine Physician | Pueblo, CO | 2005 |
| Florence Duffee, LMSW | 1134358484 | Social Worker | Russellville, AR | 2009 |
| James Duffee, MD | 1649263203 | Pediatrics Physician | Dayton, OH | 2005 |
| Jodie Duffee | 1023942208 | Case Manager/Care Coordinator | Lancaster, OH | 2026 |
| Jordan Duffee, CRNP | 1699476283 | Neonatal Nurse Practitioner | Birmingham, AL | 2023 |
| Kyle Duffee, OT | 1285816835 | Occupational Therapist | Chicago, IL | 2007 |
| Kyle Duffee, DDS | 1336874957 | General Practice Dentistry | Fort Carson, CO | 2022 |
| Lillian Duffee, M.D. | 1174054183 | Psychiatry Physician | Charlottesville, VA | 2017 |
| Nancy Duffee, LPC | 1720250996 | Professional Counselor | Westerville, OH | 2008 |
| Sarah Duffee | 1720668379 | Behavior Technician | Palmdale, CA | 2021 |
| Shawn Duffee, PH.D. | 1952414500 | Psychologist | Jefferson City, MO | 2006 |
| Corin Duffek, RBT | 1356039655 | Behavior Technician | Park Ridge, IL | 2023 |
| Cory Duffek, M.D. | 1356391908 | Diagnostic Radiology Physician | Fort Myers, FL | 2006 |
| Dan Duffek, PHARMACIST | 1477838985 | Pharmacist | Darien, IL | 2011 |
| Emily Duffek, DPT | 1558246132 | Physical Therapist | Salem, SD | 2025 |
| Frances Duffek, DMD | 1205728292 | General Practice Dentistry | Chipley, FL | 2025 |
| Jenna Duffek, ATC, LAT | 1437699238 | Other Specialist/Technologist | Lubbock, TX | 2017 |
| Michael Duffek | 1023427051 | Behavior Analyst | La Vernia, TX | 2014 |
| Renee Duffek, MS LMHP LADAC | 1912057662 | Mental Health Counselor | York, NE | 2007 |
| Susan Duffek, MD | 1538121959 | Pediatric Radiology Physician | Sioux Falls, SD | 2006 |
| Jessica Duffel | 1215216098 | Mental Health Counselor | Benton, AR | 2011 |
| Krista Duffel, M.S.,CCC-SLP | 1780005942 | Speech-Language Pathologist | Apache Junction, AZ | 2013 |
| Samantha Duffel, LCSW | 1760173421 | Clinical Social Worker | Sikeston, MO | 2023 |
| Sherry Duffel, BSPSY | 1174762819 | Case Manager/Care Coordinator | Blytheville, AR | 2009 |
| Stephanie Duffel, APN | 1316193345 | Nurse Practitioner | Bono, AR | 2008 |
| Wesley Duffel, D.D.S. | 1437386075 | Dentist | Moore, OK | 2009 |
| Bailey Duffell | 1245014737 | Independent Duty Corpsman | Chesapeake, VA | 2023 |
| Brian Duffell | 1629426978 | Emergency Medicine Physician | East Norriton, PA | 2016 |
| Elizabeth Duffell, SLP | 1770070328 | Speech-Language Pathologist | Rockford, IL | 2018 |
| Erin Duffell, RN, FNP | 1265876676 | Family Nurse Practitioner | Central Valley, NY | 2013 |
| Gordon Duffell, MD | 1700152519 | Specialist | Atlanta, GA | 2012 |
| Paul Duffell, DMD | 1205878626 | General Practice Dentistry | Newtonville, MA | 2006 |
| Susan Duffell, LPC | 1477159374 | Mental Health Counselor | Atlanta, GA | 2020 |
| Amanda Duffell Mirador | 1487227682 | Mental Health Counselor | San Diego, CA | 2021 |
| Robert Duffell-Hoffman, MS RD LD | 1023484987 | Registered Dietitian | Lancaster, SC | 2015 |
| Denise Duffelmeyer, RPH | 1134442411 | Pharmacist | Harrison, NY | 2010 |
| Kaitlyn Duffelmeyer | 1043071335 | Specialist | Keene, NH | 2024 |
| Kathleen Duffelmeyer | 1811280365 | Occupational Therapy Assistant | Granite Springs, NY | 2011 |
| Michelle Duffelmeyer, MD | 1669486395 | Internal Medicine Physician | Amherst, MA | 2006 |
| Rachel Duffelmeyer | 1427659457 | Case Manager/Care Coordinator | Clarksburg, WV | 2020 |
| Lauren Duffels | 1932917465 | Mental Health Counselor | Wheaton, IL | 2024 |
| Patrick Duffenbach | 1902073570 | Optician | Brookfield, WI | 2008 |
| Ali Duffens, MD | 1568049922 | Internal Medicine Physician | New York, NY | 2021 |
| Kurt Duffens, M.D. | 1013003045 | Internal Medicine Physician | Everett, WA | 2006 |
| Kasey Duffens-Carraher, APRN | 1164997615 | Family Nurse Practitioner | Cincinnati, OH | 2018 |
| Alice Duffer, D.C. | 1497190052 | Chiropractor | Webster, TX | 2013 |
| Christine Duffer, MS LPC | 1750868923 | Professional Counselor | Pittsburgh, PA | 2018 |
| Leah Duffer, CNA/MA | 1962356105 | Personal Care Attendant | Broken Bow, NE | 2026 |
| Martha Duffer, PSY.D. | 1396920807 | Clinical Psychologist | Austin, TX | 2008 |
| Robert Duffer, PA | 1013944925 | Physician Assistant | Hartfield, VA | 2006 |
| Rufus Duffer | 1346207750 | Family Medicine Physician | Gretna, VA | 2006 |
| Samantha Duffer | 1891648333 | Behavior Technician | Plymouth, MI | 2026 |
| Shelby Duffer, MS, CGC | 1720078538 | Genetic Counselor (M.S.) | Fairfax, VA | 2005 |
| Stephanie Duffer, NP | 1578706701 | Nurse Practitioner | Gallatin, TN | 2009 |
| Tera Duffer | 1144862954 | Physician Assistant | Hyattsville, MD | 2019 |
| Chelsy Duffer-Dunbar | 1932578150 | Clinical Social Worker | Los Angeles, CA | 2015 |
| Janet Duffer-Harvey, R.N., BSN | 1174955199 | Registered Nurse | Topeka, KS | 2013 |
| Bryce Duffett | 1538972922 | Student in an Organized Health Care Education/Training Program | Indianapolis, IN | 2025 |
| Celia Duffett, APRN, BC | 1427001551 | Nurse Practitioner | Kansas City, MO | 2006 |
| Gina Duffett, M.A., CCC-SLP | 1033578802 | Speech-Language Pathologist | Orange Park, FL | 2016 |
| Jessica Duffett, ED.D., CCC-SLP | 1588819031 | Speech-Language Pathologist | Sherwood, OR | 2008 |
| Kirsty Duffett | 1063871101 | Professional Counselor | Elgin, IL | 2016 |
| Lacy Duffett, RN, BSN, IBCLC | 1598538563 | Lactation Consultant (Registered Nurse) | Basehor, KS | 2023 |
| Matthew Duffett, L.AC. | 1245946185 | Acupuncturist | Berkeley, CA | 2023 |
| Naomi Duffett, NP | 1235808205 | Family Nurse Practitioner | San Manuel, AZ | 2021 |
| Patricia Duffett, LCSW | 1235684036 | Clinical Social Worker | Portland, ME | 2016 |
| Raymond Duffett, M.D. | 1740270990 | Orthopaedic Surgery Physician | Winston Salem, NC | 2005 |
| Ross Duffett, MD | 1114728110 | Student in an Organized Health Care Education/Training Program | Cleveland, OH | 2025 |
| Susan Duffett, RPH | 1063518728 | Pharmacist | Richmond, MO | 2006 |
| Thomas Duffett, MS,PT | 1164434981 | Physical Therapist | Nashua, NH | 2006 |
| Thomasina Duffett, M.S. CCC-SLP | 1376131755 | Speech-Language Pathologist | Richmond, MO | 2021 |
| Alice Duffey, FNP-BC | 1831740497 | Obstetrics & Gynecology Nurse Practitioner | Augusta, GA | 2019 |
| Alison Duffey, MHC-LP | 1033758206 | Mental Health Counselor | Brooklyn, NY | 2020 |
| Alison Duffey, MS, RDN, LDN, FAND | 1730946534 | Registered Dietitian | Punta Gorda, FL | 2024 |
| Amanda Duffey | 1316765621 | Behavior Technician | Farmington Hills, MI | 2024 |
| Amy Duffey, LCSW | 1124898812 | Clinical Social Worker | Jenkintown, PA | 2024 |
| Anastasia Duffey, BSN, RN, CRNA | 1518663558 | Certified Registered Nurse Anesthetist | Plano, TX | 2023 |
| Andrea Duffey, PTA | 1013040955 | Physical Therapy Assistant | Yuba City, CA | 2007 |
| Angela Duffey | 1134507122 | Counselor | Victorville, CA | 2015 |
| Angela Duffey, RN | 1689260952 | Registered Nurse | Columbia, MD | 2020 |
| Anna Duffey, DPT | 1366929564 | Physical Therapist | Somerville, MA | 2018 |
| Annthony Duffey, LCSW | 1063992154 | Clinical Social Worker | Lagrange, GA | 2018 |
| Astinne Duffey, LPCC | 1326969460 | Mental Health Counselor | Oceanside, CA | 2026 |
| August Duffey | 1134805245 | Behavior Technician | Elkhart, IN | 2023 |
| Branden Duffey, D.O. | 1598801235 | Urology Physician | Minneapolis, MN | 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).