Providers Michael Duffy, B.A. to Katherine Duffy-Sherr
300 individual NPIs in the federal registry, part 5,859 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. 95 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Michael Duffy, B.A. | 1821359894 | Mental Health Counselor | Pittsburgh, PA | 2012 |
| Michael Duffy, DDS | 1841371010 | Oral and Maxillofacial Surgery (Dentist) | Oklahoma City, OK | 2006 |
| Michael Duffy, DO | 1851399802 | Internal Medicine Physician | San Diego, CA | 2005 |
| Michael Duffy, MD | 1922113182 | Internal Medicine Physician | Oshkosh, WI | 2006 |
| Michael Duffy, D.O. | 1952716870 | Optician | San Marcos, TX | 2014 |
| Michael Duffy | 1952905580 | Pharmacist | Ardmore, OK | 2020 |
| Michael Duffy, MD | 1982693677 | Gastroenterology Physician | Troy, MI | 2005 |
| Michele Duffy, DNP | 1083903637 | Family Nurse Practitioner | Daniel Island, SC | 2011 |
| Michele Duffy | 1689270977 | Case Manager/Care Coordinator | Cleveland, OH | 2020 |
| Michelle Duffy, CPHT | 1356211205 | Pharmacy Technician | La Vernia, TX | 2025 |
| Michelle Duffy | 1942466883 | Mental Health Counselor | Cherry Hill, NJ | 2008 |
| Mike Duffy, MED | 1144360900 | Counselor | Maysville, KY | 2007 |
| Millicent Duffy | 1952033565 | Behavior Technician | Colorado Springs, CO | 2022 |
| Mollie Duffy | 1780250720 | Mental Health Counselor | Fayetteville, NC | 2021 |
| Molly Duffy, MD | 1083177612 | Family Medicine Physician | Chapel Hill, NC | 2019 |
| Molly Duffy, OTR | 1144359928 | Occupational Therapist | Chandler, AZ | 2007 |
| Molly Duffy, APRN, FNP-C | 1205459252 | Family Nurse Practitioner | Anchorage, AK | 2020 |
| Molly Duffy, PHD | 1265290001 | Psychologist | New York, NY | 2024 |
| Molly Duffy | 1699456343 | Professional Counselor | Ambridge, PA | 2023 |
| Mona Duffy | 1750122594 | Day Training/Habilitation Specialist | Columbus, OH | 2024 |
| Monica Duffy, COTA | 1437577921 | Occupational Therapy Assistant | Glen Mills, PA | 2014 |
| Monica Duffy, CRNP, NP-C | 1588159164 | Family Nurse Practitioner | Chester, PA | 2018 |
| Morgan Duffy, MSW | 1023905841 | Social Worker | Huntington, WV | 2025 |
| Morgan Duffy | 1558058792 | Certified Registered Nurse Anesthetist | Fort Lauderdale, FL | 2023 |
| Morgan Duffy | 1568117430 | Counselor | Bremerton, WA | 2022 |
| Morgan Duffy | 1801636402 | Clinical Social Worker | Blackstone, VA | 2024 |
| Morgan Duffy | 1952163180 | Behavior Technician | Nixa, MO | 2024 |
| Morris Duffy, PA-C | 1669884920 | Medical Physician Assistant | Bismarck, ND | 2014 |
| Nananamibia Duffy, M.D. | 1700918950 | Dermatology Physician | Rochester, NY | 2007 |
| Nancy Duffy, LCSW | 1336273408 | Clinical Social Worker | Bloomington, IL | 2007 |
| Nancy Duffy, RN | 1720396088 | Registered Nurse | Dayton, OH | 2010 |
| Naomi Duffy, ACSW | 1538821525 | Clinical Social Worker | Long Beach, CA | 2021 |
| Natalia Duffy | 1477139657 | Registered Nurse | Freeport, NY | 2021 |
| Natalie Duffy, PA-C | 1417504143 | Physician Assistant | Louisville, KY | 2019 |
| Natalie Duffy, CRNP | 1528494713 | Nurse Practitioner | York, PA | 2013 |
| Natisha Duffy | 1134455975 | Homeopath | Winslow, AZ | 2009 |
| Neil Duffy, PT, DPT | 1972027563 | Physical Therapist | Virginia Beach, VA | 2017 |
| Nicholas Duffy | 1154200905 | Day Training/Habilitation Specialist | San Francisco, CA | 2025 |
| Nicholas Duffy | 1588860605 | Specialist | Keene, NH | 2007 |
| Nicole Duffy | 1013477611 | Addiction (Substance Use Disorder) Counselor | Bridgeville, PA | 2019 |
| Nicole Duffy, MHCA | 1073335071 | Mental Health Counselor | Warwick, RI | 2024 |
| Nicole Duffy, BA, MHP | 1073972634 | Mental Health Counselor | Danville, IL | 2016 |
| Nicole Duffy, LMSW | 1245052240 | Mental Health Counselor | Ronkonkoma, NY | 2024 |
| Nicole Duffy, PHD | 1528493384 | Psychologist | Newark, DE | 2013 |
| Nicole Duffy, PA-C | 1588066997 | Medical Physician Assistant | Hummelstown, PA | 2014 |
| Nicole Duffy | 1770145302 | Behavior Technician | New Port Richey, FL | 2019 |
| Nicole Duffy, CF-SLP | 1992308993 | Speech-Language Pathologist | Burlington Township, NJ | 2020 |
| Nolan Duffy, PA-C | 1285242776 | Physician Assistant | Bradenton, FL | 2020 |
| Olivia Duffy | 1144164237 | Physical Therapist | Middleton, MA | 2026 |
| Owen Duffy, MD | 1295758027 | Emergency Medical Services (Emergency Medicine) Physician | Salt Lake City, UT | 2006 |
| Pamela Duffy | 1518385095 | Physical Therapy Assistant | Leeds, MA | 2014 |
| Pamela Duffy, PT | 1679793251 | Orthopedic Physical Therapist | Adel, IA | 2007 |
| Panee Duffy, L.M.P. | 1457409070 | Massage Therapist | Bellingham, WA | 2007 |
| Patricia Duffy, PSY.D. | 1285757575 | Clinical Psychologist | Denver, CO | 2007 |
| Patricia Duffy, P.T. | 1487836029 | Physical Therapist | Winter Park, FL | 2007 |
| Patricia Duffy, CRNA | 1629067525 | Certified Registered Nurse Anesthetist | Brooksville, FL | 2005 |
| Patricia Duffy, NP | 1750344370 | Nurse Practitioner | College Station, TX | 2006 |
| Patricia Duffy | 1811106404 | Specialist | Port Jefferson Station, NY | 2007 |
| Patricia Duffy, LCSW | 1821281379 | Clinical Social Worker | Moorestown, NJ | 2007 |
| Patricia Duffy, PSY.D. | 1851680631 | Psychologist | Lexington, MA | 2011 |
| Patrick Duffy, D.D.S, | 1023265592 | General Practice Dentistry | Hayward, WI | 2008 |
| Patrick Duffy, PA-C | 1023488756 | Physician Assistant | Bellevue, WA | 2015 |
| Patrick Duffy, PT | 1053355487 | Physical Therapist | High Point, NC | 2006 |
| Patrick Duffy | 1134604838 | Behavior Technician | Sacramento, CA | 2018 |
| Patrick Duffy | 1225715964 | Behavior Technician | Corvallis, OR | 2023 |
| Patrick Duffy, CAP | 1255951844 | Addiction (Substance Use Disorder) Counselor | Ocala, FL | 2020 |
| Patrick Duffy, MB BCH BAO | 1376108563 | Diagnostic Radiology Physician | Boston, MA | 2019 |
| Patrick Duffy, PSY.D. | 1417203696 | Clinical Psychologist | Charleston, SC | 2012 |
| Patrick Duffy, MD | 1477726271 | Vascular Surgery Physician | Rock Hill, SC | 2008 |
| Patrick Duffy, MD | 1568788594 | Surgical Critical Care Physician | Nashville, TN | 2010 |
| Patrick Duffy, MD | 1588650329 | Ophthalmology Physician | Natchez, MS | 2005 |
| Patrick Duffy, MSN, ARNP, FNP-C | 1649485517 | Family Nurse Practitioner | Moreno Valley, CA | 2007 |
| Patrick Duffy, O.D. | 1710071535 | Optometrist | Chicago, IL | 2006 |
| Patrick Duffy, RPH | 1760772263 | Pharmacist | Tempe, AZ | 2011 |
| Patrick Duffy, PTA | 1770111742 | Physical Therapy Assistant | Boulder City, NV | 2020 |
| Patrick Duffy, PA | 1780748368 | Physician Assistant | Rehoboth Beach, DE | 2006 |
| Patrick Duffy, M.D. | 1912905621 | Orthopaedic Surgery Physician | Prospect, CT | 2005 |
| Patrick Duffy, M.D. | 1922258532 | Diagnostic Radiology Physician | Hartford, CT | 2008 |
| Patrocinia Duffy, NURSE PRACTITIONER | 1336663897 | Family Nurse Practitioner | Tucson, AZ | 2017 |
| Paul Duffy, D.C. | 1003814658 | Chiropractor | Bethlehem, PA | 2005 |
| Paul Duffy | 1104425214 | Professional Counselor | Austin, TX | 2020 |
| Paul Duffy | 1760224083 | Addiction (Substance Use Disorder) Counselor | Albuquerque, NM | 2024 |
| Paula Duffy, RN | 1427707264 | Psychiatric/Mental Health Registered Nurse | Altoona, PA | 2022 |
| Paulina Duffy | 1407736143 | Mental Health Counselor | Rockville, MD | 2025 |
| Peter Duffy, MD | 1376535385 | Ophthalmology Physician | Albany, NY | 2005 |
| Peter Duffy, MD | 1548213481 | Interventional Cardiology Physician | Pinehurst, NC | 2006 |
| Philip Duffy | 1952100570 | Behavior Technician | Middletown, OH | 2025 |
| Priscilla Duffy | 1407453475 | Marriage & Family Therapist | San Marcos, CA | 2020 |
| Quynlan Duffy | 1013701747 | Student in an Organized Health Care Education/Training Program | Milwaukee, WI | 2025 |
| Rachel Duffy | 1184040396 | Dentist | Mesa, AZ | 2014 |
| Rachel Duffy, OTR | 1477825867 | Occupational Therapist | Richmond, VA | 2012 |
| Rachel Duffy | 1518482256 | Behavior Analyst | Norwell, MA | 2017 |
| Rachel Duffy, PSYD | 1659954949 | Clinical Psychologist | Stamford, CT | 2021 |
| Rachel Duffy | 1730056284 | Nurse's Aide | Enderlin, ND | 2025 |
| Ragon Duffy, LCSW | 1487784682 | Clinical Social Worker | Los Angeles, CA | 2007 |
| Rebecca Duffy, RN | 1144426271 | Psychiatric/Mental Health Nurse Practitioner | Winston, OR | 2007 |
| Rebecca Duffy, MS | 1215705652 | Day Training/Habilitation Specialist | Santa Rosa, CA | 2023 |
| Rebecca Duffy | 1285772277 | Marriage & Family Therapist | Oceano, CA | 2007 |
| Rebecca Duffy | 1346064144 | Student in an Organized Health Care Education/Training Program | Louisville, KY | 2024 |
| Rebecca Duffy, CPD | 1407533136 | Doula | Warwick, RI | 2023 |
| Rebecca Duffy, L.AC. | 1720227218 | Acupuncturist | Anchorage, AK | 2009 |
| Rebecca Duffy, LAC | 1851644074 | Mental Health Counselor | Phoenix, AZ | 2012 |
| Regan Duffy, MD | 1487876827 | Medical Oncology Physician | Portland, OR | 2007 |
| Regis Duffy, CRNA | 1730137399 | Certified Registered Nurse Anesthetist | Akron, OH | 2006 |
| Renee Duffy, RD,LDN | 1770699688 | Registered Dietitian | Pittsburgh, PA | 2006 |
| Reshma Duffy, MD | 1588821615 | Vascular Surgery Physician | Concord, NH | 2008 |
| Richard Duffy, MD | 1336140714 | Anesthesiology Physician | Portsmouth, NH | 2005 |
| Richard Duffy, M.D. | 1447367297 | Internal Medicine Physician | Martinsburg, WV | 2006 |
| Richard Duffy | 1801595228 | Mental Health Counselor | Waukegan, IL | 2023 |
| Robert Duffy, MS | 1033804307 | Specialist | Liverpool, NY | 2023 |
| Robert Duffy, M.D. | 1245285956 | Family Medicine Physician | Mobile, AL | 2006 |
| Robert Duffy, D.O. | 1487073235 | Psychiatry Physician | Corvallis, OR | 2014 |
| Robert Duffy | 1548648918 | Counselor | Bedford, MA | 2015 |
| Robert Duffy, DPM | 1558332825 | Podiatrist | White Plains, NY | 2006 |
| Robert Duffy | 1558906362 | Pharmacist | Wooster, OH | 2019 |
| Robert Duffy, DDS | 1740215417 | General Practice Dentistry | Vernon Hills, IL | 2006 |
| Roberto Duffy, MS | 1487782520 | Counselor | Big Stone Gap, VA | 2007 |
| Robyn Duffy, RN | 1679974695 | Community Health Registered Nurse | Richmond, CA | 2014 |
| Ronald Duffy, DDS | 1558560318 | General Practice Dentistry | Beloit, WI | 2007 |
| Rose Duffy, OTR/L, IBCLC | 1689293920 | Occupational Therapist | Niles, IL | 2020 |
| Rose Marie Duffy, COTA/L | 1790865194 | Occupational Therapy Assistant | Laurens, SC | 2006 |
| Rosemary Duffy, PSY.D. | 1033276167 | Clinical Psychologist | North Chelmsford, MA | 2007 |
| Rosemary Duffy | 1639769169 | Behavior Technician | Philadelphia, PA | 2021 |
| Russell Duffy, COTA | 1548683105 | Occupational Therapy Assistant | Albany, OR | 2014 |
| Ryan Duffy, M.D. | 1225200215 | Orthopaedic Surgery Physician | Concord, NH | 2008 |
| Ryan Duffy, ATC | 1780123349 | Athletic Trainer | Holtsville, NY | 2017 |
| Ryan Duffy | 1811864267 | Occupational Therapist | Danville, PA | 2025 |
| Ryan Duffy, MD | 1821550302 | Hospitalist Physician | Durham, NC | 2019 |
| Ryan Duffy | 1891444360 | Acute Care Nurse Practitioner | Philadelphia, PA | 2022 |
| Sabine Duffy, MD | 1003891680 | Anesthesiology Physician | Falls Church, VA | 2005 |
| Sabrina Duffy | 1558684225 | Licensed Practical Nurse | Herkimer, NY | 2010 |
| Sally Duffy, PHD | 1396704458 | Psychologist | Charlotte, NC | 2006 |
| Sally Duffy | 1720565112 | Marriage & Family Therapist | Van Nuys, CA | 2018 |
| Samantha Duffy, NP | 1376029918 | Gerontology Nurse Practitioner | Springfield, MA | 2018 |
| Samantha Duffy, M.A.CCC-SLP | 1700602067 | Speech-Language Pathologist | Cape Girardeau, MO | 2024 |
| Samuel Duffy, MD | 1922703909 | Student in an Organized Health Care Education/Training Program | Washington, DC | 2023 |
| Sara Duffy | 1215398565 | Behavior Analyst | Plano, IL | 2016 |
| Sara Duffy, R.D. | 1376791863 | Registered Dietitian | Des Moines, IA | 2008 |
| Sara Duffy | 1437699972 | Behavior Analyst | Seattle, WA | 2017 |
| Sara Duffy, B.A., MHP | 1598921611 | Student in an Organized Health Care Education/Training Program | Clinton, IL | 2008 |
| Sara Duffy, NP | 1649382268 | Psychiatric/Mental Health Nurse Practitioner | San Francisco, CA | 2006 |
| Sarah Duffy, LCSW | 1124636162 | Clinical Social Worker | Alexandria, VA | 2020 |
| Sarah Duffy | 1235078056 | Child & Adolescent Psychiatry Physician | Jacksonville, FL | 2026 |
| Sarah Duffy | 1245753375 | Social Worker | Jamaica Plain, MA | 2017 |
| Sarah Duffy, RN | 1487431987 | Registered Nurse | Lynn, MA | 2023 |
| Sarah Duffy | 1528761616 | Family Nurse Practitioner | Danvers, MA | 2023 |
| Sarah Duffy, M.S., CCC-SLP, TSSLD | 1568138774 | Speech-Language Pathologist | Clifton Springs, NY | 2021 |
| Sarah Duffy | 1598786162 | Physical Therapist | Madison, WI | 2006 |
| Sarah Duffy, DMD | 1669868998 | Dentist | Bremerton, WA | 2015 |
| Sarah Duffy, DPT | 1720375082 | Physical Therapist | Juneau, WI | 2011 |
| Sarah Duffy | 1801724257 | Physician Assistant | Little Rock, AR | 2026 |
| Sarah Duffy | 1821798836 | Occupational Therapist | Phoenix, AZ | 2023 |
| Sarah Duffy | 1841833803 | Student in an Organized Health Care Education/Training Program | Los Angeles, CA | 2019 |
| Savannah Duffy, MS, RDN, LD | 1013621259 | Registered Dietitian | Atlanta, GA | 2023 |
| Scott Duffy, MD | 1306943741 | Cardiovascular Disease Physician | Spencer, WV | 2006 |
| Sean Duffy, D.O. | 1033371752 | Internal Medicine Physician | Arnold, MD | 2008 |
| Sean Duffy, D.C. | 1083682348 | Chiropractor | Appleton, WI | 2006 |
| Sean Duffy | 1104306117 | Physician Assistant | Pottstown, PA | 2018 |
| Sean Duffy, M.S. CCC-SLP | 1164270187 | Speech-Language Pathologist | Evergreen, CO | 2024 |
| Sean Duffy, M.D. | 1235282666 | Psychiatry Physician | Las Vegas, NV | 2007 |
| Sean Duffy, M.D. | 1306157128 | Pulmonary Disease Physician | Philadelphia, PA | 2010 |
| Sean Duffy, MD | 1356785430 | Family Medicine Physician | Madison, WI | 2013 |
| Sean Duffy, MASSAGE THERAPIST | 1457988198 | Massage Therapist | East Providence, RI | 2020 |
| Sean Duffy, DO | 1487215794 | Family Medicine Physician | Feasterville Trevose, PA | 2019 |
| Sean Duffy, MD | 1528027901 | Family Medicine Physician | Walla Walla, WA | 2006 |
| Sean Duffy | 1730937368 | Psychiatric/Mental Health Registered Nurse | Indio, CA | 2024 |
| Sean Duffy, ATC | 1790017192 | Athletic Trainer | Aberdeen, SD | 2010 |
| Shaina Duffy, LPCC | 1760895445 | Professional Counselor | North Ridgeville, OH | 2014 |
| Shane Duffy | 1639595713 | Behavior Analyst | Post Falls, ID | 2014 |
| Shanna Duffy | 1114793098 | Occupational Therapy Assistant | Fort Myers, FL | 2023 |
| Shanna Duffy, PT, DPT | 1508325481 | Physical Therapist | Lebanon, NH | 2019 |
| Shannon Duffy | 1063910586 | Behavior Analyst | North Fort Myers, FL | 2018 |
| Shannon Duffy, APRN | 1215454574 | Nurse Practitioner | Renton, WA | 2017 |
| Shannon Duffy, D.M.D. | 1255427399 | Orthodontics and Dentofacial Orthopedics Dentistry | Reading, MA | 2006 |
| Shannon Duffy | 1275349425 | Mental Health Counselor | Whitehouse Station, NJ | 2024 |
| Shannon Duffy, CCC-SLP | 1821709668 | Speech-Language Pathologist | Lowell, MA | 2022 |
| Shannon Duffy, LCPC | 1891140943 | Professional Counselor | Chicago, IL | 2016 |
| Shannon Duffy, MMSC, PA-C | 1902577604 | Physician Assistant | Boulder, CO | 2021 |
| Shannon Duffy | 1902693971 | Counselor | Tulalip, WA | 2025 |
| Shannon Duffy, R.D. | 1922243831 | Pediatric Nutrition Registered Dietitian | Los Angeles, CA | 2008 |
| Sharin Duffy, LCSW | 1316738800 | Clinical Social Worker | Austin, TX | 2025 |
| Shaun Duffy, MD | 1821791260 | Student in an Organized Health Care Education/Training Program | Seattle, WA | 2023 |
| Sheila Duffy, M.A. | 1285680595 | Audiologist | Bay Pines, FL | 2006 |
| Sheri Duffy | 1477361350 | Clinical Social Worker | Dry Prong, LA | 2024 |
| Sicily Duffy | 1689139875 | Case Manager/Care Coordinator | Cincinnati, OH | 2019 |
| Siobhan Duffy | 1750713954 | Occupational Therapist | Chicago, IL | 2013 |
| Soledad Duffy, LAC | 1932675568 | Acupuncturist | Houston, TX | 2018 |
| Sophie Duffy | 1942053087 | Behavior Technician | Murfreesboro, TN | 2024 |
| Staci Duffy, CRNA | 1851349229 | Certified Registered Nurse Anesthetist | Akron, OH | 2006 |
| Stacy Duffy, PSY.D. | 1013167022 | Clinical Psychologist | Palo Alto, CA | 2008 |
| Stacy Duffy, RN,MSN,ANP-BC | 1184897837 | Nurse Practitioner | Saint Louis, MO | 2008 |
| Stella Duffy | 1245173731 | Occupational Therapist | Durham, NC | 2026 |
| Stephanie Duffy, NP | 1417429796 | Adult Health Nurse Practitioner | Glendale, AZ | 2018 |
| Stephanie Duffy | 1699356352 | Case Manager/Care Coordinator | San Diego, CA | 2021 |
| Stephen Duffy, M.D. | 1073763447 | Plastic Surgery Physician | Pasadena, CA | 2008 |
| Stephen Duffy | 1316589757 | Chiropractor | Seattle, WA | 2019 |
| Stephen Duffy, RADT-I | 1932690344 | Addiction (Substance Use Disorder) Counselor | San Pedro, CA | 2018 |
| Steve Duffy, MD | 1407061914 | Surgery Physician | Celina, TX | 2007 |
| Steven Duffy, MD | 1154586188 | Internal Medicine Physician | East Syracuse, NY | 2008 |
| Steven Duffy, D.C. | 1497811996 | Chiropractor | Oklahoma City, OK | 2006 |
| Sue Duffy, LICSW | 1821326364 | Social Worker | Manchester, NH | 2009 |
| Summer Duffy, GCG | 1669138970 | Genetic Counselor (M.S.) | Atlanta, GA | 2021 |
| Susan Duffy, DT | 1124893938 | Developmental Therapist | Brownsburg, IN | 2023 |
| Susan Duffy, PA-C | 1376617175 | Physician Assistant | Bellevue, WA | 2006 |
| Susan Duffy, MD | 1497779342 | Pediatric Emergency Medicine (Pediatrics) Physician | Providence, RI | 2006 |
| Susan Duffy, MFT | 1760400485 | Marriage & Family Therapist | Newport Beach, CA | 2006 |
| Susan Duffy | 1770996092 | Speech-Language Pathologist | Gilbert, AZ | 2014 |
| Susan Duffy, M.D. | 1851509749 | Neurology Physician | Iowa City, IA | 2007 |
| Susan Duffy, LMSW | 1932864535 | Clinical Social Worker | Mount Sinai, NY | 2021 |
| Susanne Duffy, MSW | 1164567319 | Clinical Social Worker | Riverside, RI | 2007 |
| Tammy Duffy | 1699166470 | Licensed Practical Nurse | Stockbridge, GA | 2015 |
| Tanner Duffy, AA | 1770282873 | Anesthesiologist Assistant | Milwaukee, WI | 2023 |
| Tara Duffy, PA | 1073198214 | Physician Assistant | Chicago, IL | 2021 |
| Tara Duffy | 1508690181 | Clinical Social Worker | Clackamas, OR | 2024 |
| Tara Duffy, LCSW | 1639703630 | Clinical Social Worker | Radnor, PA | 2020 |
| Tara Duffy | 1942198726 | Behavior Analyst | Newark, DE | 2025 |
| Taylar Duffy, MSW,LCSWA,LCASA | 1932655578 | Clinical Social Worker | Sanford, NC | 2016 |
| Taylor Duffy, APRN | 1063200038 | Acute Care Nurse Practitioner | Hartford, CT | 2025 |
| Terence Duffy, MD | 1568493039 | Emergency Medicine Physician | Dalton, GA | 2006 |
| Terence Duffy, MD | 1740232362 | Pain Medicine (Physical Medicine & Rehabilitation) Physician | Middletown, DE | 2006 |
| Teresa Duffy, CADC INTERN | 1184062978 | Case Manager/Care Coordinator | Carson City, NV | 2013 |
| Teresa Duffy, CNP | 1811232077 | Pediatric Nurse Practitioner | Cincinnati, OH | 2012 |
| Teresa Duffy | 1942162920 | Massage Therapist | Panama City Beach, FL | 2025 |
| Terrance Duffy | 1326673625 | Case Manager/Care Coordinator | Portsmouth, OH | 2020 |
| Terrence Duffy, MD | 1811911787 | Urology Physician | Saint Cloud, MN | 2006 |
| Terry Duffy, LADC | 1871872655 | Addiction (Substance Use Disorder) Counselor | Norfolk, NE | 2011 |
| Tharren Duffy, D.O. | 1508027020 | Emergency Medicine Physician | Tyler, TX | 2008 |
| Theresa Duffy | 1194233973 | Psychiatric/Mental Health Registered Nurse | Elmira, NY | 2018 |
| Theresa Duffy, CRNA | 1316949050 | Certified Registered Nurse Anesthetist | Virginia, MN | 2005 |
| Thomas Duffy, O.D. | 1063503613 | Optometrist | Ansonia, CT | 2006 |
| Thomas Duffy, DO | 1275113797 | Family Medicine Physician | Tulsa, OK | 2021 |
| Thomas Duffy | 1285106773 | Massage Therapist | Philadelphia, PA | 2018 |
| Thomas Duffy, D.O. | 1447221692 | Orthopaedic Surgery Physician | Darby, PA | 2006 |
| Thomas Duffy | 1639572977 | Dentist | Shelton, WA | 2014 |
| Thomas Duffy, FNP | 1790585578 | Family Nurse Practitioner | Youngstown, OH | 2025 |
| Tiffany Duffy, DC | 1679250765 | Chiropractor | San Diego, CA | 2023 |
| Tim Duffy, DO | 1871686535 | Family Medicine Physician | Jb Andrews, MD | 2006 |
| Timothy Duffy, PT, DPT | 1740666544 | Physical Therapist | Provincetown, MA | 2015 |
| Timothy Duffy, DPM | 1750363487 | Podiatrist | Queensbury, NY | 2005 |
| Timothy Duffy | 1790472843 | Behavior Technician | Dublin, CA | 2023 |
| Tonya Duffy, M. A. HUMAN SERVICES | 1043100779 | Case Manager/Care Coordinator | Baton Rouge, LA | 2025 |
| Tracy Duffy, L.M.P, C.H.P | 1497955173 | Massage Therapist | Marysville, WA | 2007 |
| Treasa Duffy | 1164254280 | Developmental Therapist | Milford, MA | 2024 |
| Tressie Duffy, M.D. | 1881634624 | Family Medicine Physician | Martinsburg, WV | 2006 |
| Trina Duffy | 1356994560 | Licensed Vocational Nurse | Tyler, TX | 2019 |
| Trinice Duffy, BCBA | 1588420665 | Behavior Analyst | Bloxom, VA | 2024 |
| Trisha Duffy, M.A. | 1285661017 | Audiologist | Marion, IN | 2006 |
| Tristan Duffy, RN | 1235787581 | Registered Nurse | Florence, SC | 2019 |
| Tristyn Duffy, RN | 1922592740 | Registered Nurse | Shenandoah, TX | 2018 |
| Tyler Duffy, DDS | 1366921389 | General Practice Dentistry | Ft Sill, OK | 2018 |
| Tyler Duffy | 1629868443 | Certified Registered Nurse Anesthetist | Fall River, MA | 2025 |
| Tyra Duffy | 1548019821 | Behavior Technician | Farmington Hills, MI | 2024 |
| Valerie Duffy, PHARMD | 1467733105 | Pharmacist | Baltimore, MD | 2011 |
| Varina Duffy, COTA/L | 1912384934 | Occupational Therapist | Milton, WA | 2015 |
| Victoria Duffy, MSN, APRN, FNP | 1275392821 | Family Nurse Practitioner | Corpus Christi, TX | 2024 |
| Victoria Duffy, LPN | 1952671596 | Licensed Practical Nurse | Syracuse, NY | 2012 |
| Victoria Duffy | 1962150474 | School Psychologist | Costa Mesa, CA | 2022 |
| Vincent Duffy, LCSW | 1841301835 | Clinical Social Worker | Dover, NH | 2006 |
| Walter Duffy, MD | 1093853368 | Psychiatry Physician | Lincoln, NE | 2007 |
| Wanda Duffy, C.C.D.C. | 1780715755 | Marriage & Family Therapist | Gardena, CA | 2007 |
| Wendy Duffy, RPH | 1720059439 | Pharmacist | Everett, WA | 2006 |
| William Duffy, P.T. | 1073631875 | Physical Therapist | Cincinnati, OH | 2007 |
| William Duffy, MD | 1538108055 | Internal Medicine Physician | Conshohocken, PA | 2006 |
| William Duffy, MD | 1568448363 | Nephrology Physician | Chicago, IL | 2005 |
| William Duffy, R.N. | 1669757084 | Registered Nurse | Centereach, NY | 2011 |
| Zita Duffy, MSW, LISW-S, CSW | 1598886566 | Clinical Social Worker | Mishawaka, IN | 2007 |
| Patricia Duffy Brown, MFT | 1396876934 | Marriage & Family Therapist | Van Nuys, CA | 2007 |
| Diane Duffy Burns, RPT | 1568683779 | Physical Therapist | Meriden, CT | 2007 |
| Katherine Duffy Darmetko, LPN | 1003384967 | Licensed Practical Nurse | Troy, NY | 2018 |
| M Angela Duffy Kelly, ATR 99-076 | 1396598769 | Art Therapist | Santa Barbara, CA | 2024 |
| Megan Duffy Knight, LCSW | 1215673066 | Clinical Social Worker | Danbury, CT | 2022 |
| Christine Duffy Levy, LCSW | 1750744397 | Clinical Social Worker | Chicago, IL | 2016 |
| Anh Duffy Nguyen | 1760273338 | Behavior Technician | Tacoma, WA | 2025 |
| Eileen Duffy Traslavina, LCSWR | 1376935924 | Clinical Social Worker | Staatsburg, NY | 2015 |
| Amy Duffy-Barnes, LMSW | 1043616667 | Clinical Social Worker | Grand Rapids, MI | 2014 |
| Sharon Duffy-Batt, OTR | 1083859813 | Pediatric Occupational Therapist | Poughkeepsie, NY | 2008 |
| Donna Duffy-Bell, M.A. | 1215044482 | Psychologist | Sellersville, PA | 2006 |
| Kelly Duffy-Clark | 1366583783 | Clinical Social Worker | Springfield, MA | 2007 |
| Patricia Duffy-Feins, MA, MSW | 1093044851 | Counselor | Tulsa, OK | 2009 |
| Ciara Duffy-Gideon | 1609225143 | Clinical Social Worker | Minneapolis, MN | 2016 |
| Stephanie Duffy-Graham, PTA | 1356643712 | Physical Therapy Assistant | Edison, NJ | 2010 |
| Rosemary Duffy-Greslo, LMFT | 1740581933 | Marriage & Family Therapist | Seattle, WA | 2010 |
| Dorothy Duffy-Gross, C.R.N.A. | 1104904507 | Certified Registered Nurse Anesthetist | Neptune, NJ | 2006 |
| Christina Duffy-Henriques, NP | 1710358437 | Gerontology Nurse Practitioner | Maitland, FL | 2015 |
| Bobbi Duffy-Hidalgo, APRN | 1912336462 | Family Nurse Practitioner | Westport, CT | 2013 |
| Jacqueline Duffy-Hook | 1003292442 | Clinical Social Worker | Bolingbrook, IL | 2015 |
| Sherri Duffy-King | 1932042512 | Homemaker | Magna, UT | 2026 |
| Kelly Duffy-McKnight, CRNP | 1306847769 | Obstetrics & Gynecology Nurse Practitioner | Greensburg, PA | 2005 |
| Elizabeth Duffy-Milmo, MD | 1710115050 | Family Medicine Physician | Cannon Afb, NM | 2009 |
| McKenna Duffy-Mullins, OTR | 1821675414 | Occupational Therapist | Kalamazoo, MI | 2021 |
| Diamond Duffy-Payne | 1194268805 | Personal Care Attendant | Washington, DC | 2016 |
| Jennifer Duffy-Philip, LMSW | 1194610360 | Social Worker | West Babylon, NY | 2025 |
| Kelsey Duffy-Protentis, PHARMD | 1538764527 | Pharmacist | South Attleboro, MA | 2020 |
| Ann Duffy-Randall, ARNP,DMIN, MA,MSN,BC | 1679772941 | Mental Health Counselor | San Antonio, TX | 2007 |
| Lisa Duffy-Reckner, D.O. | 1154533503 | Pediatrics Physician | Mechanicsburg, PA | 2007 |
| Michelle Duffy-Reneau, FNP | 1912335225 | Family Nurse Practitioner | Banning, CA | 2013 |
| Brooke Duffy-Roberts, PH.D. | 1164613360 | Mental Health Counselor | Spring, TX | 2007 |
| Kathryn Duffy-Saviano, RN | 1336082775 | Registered Nurse | Hyannis, MA | 2026 |
| Cari Duffy-Sebero, N.P. | 1417241803 | Nurse Practitioner | Denmark, WI | 2011 |
| Katherine Duffy-Sherr | 1417893975 | Speech-Language Pathologist | Antioch, CA | 2026 |
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).