Providers Sharon Leffall, N.P. to Paul Lefko, PT
300 individual NPIs in the federal registry, part 12,451 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. 72 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Sharon Leffall, N.P. | 1255543005 | Nurse Practitioner | Los Angeles, CA | 2007 |
| Sheila Leffall | 1588985121 | Public Health Dentistry | Redwood City, CA | 2010 |
| Willene Leffall, MPA | 1821432964 | Social Worker | Tulsa, OK | 2013 |
| Yvette Leffall Aliu | 1598386930 | Behavior Technician | San Bruno, CA | 2020 |
| Stacie Leffard, PH.D. | 1649524596 | Clinical Neuropsychologist | Pittsburgh, PA | 2012 |
| Sue Leffard, MS,RD,LD | 1225455256 | Registered Dietitian | Fairmont, WV | 2014 |
| Richard Leffe, ABOC | 1043376908 | Optician | Wheeling, WV | 2006 |
| Sabatino Leffe, DO | 1902120454 | Anesthesiology Physician | New York, NY | 2010 |
| Alicia Leffel, M.D. | 1437112133 | Pediatrics Physician | Keller, TX | 2006 |
| Alyson Leffel, LCSW | 1962128009 | Social Worker | West Harrison, NY | 2022 |
| Ana Leffel | 1124479407 | Developmental Therapist | Evanston, IL | 2016 |
| Angel Leffel | 1871438721 | Mental Health Counselor | Spokane Valley, WA | 2026 |
| Benjamin Leffel, M.D. | 1023469525 | Internal Medicine Physician | Weymouth, MA | 2016 |
| Cathy Leffel, MSPT | 1811109440 | Physical Therapist | Sacramento, CA | 2007 |
| Chana Leffel, M.S | 1437414950 | Specialist | Brooklyn, NY | 2012 |
| Chaya Leffel | 1245544212 | Occupational Therapist | Brooklyn, NY | 2010 |
| Chedva Leffel | 1215290432 | Specialist | Brooklyn, NY | 2012 |
| Danielle Leffel, CIT #4010 | 1033675418 | Addiction (Substance Use Disorder) Counselor | Abbeville, LA | 2019 |
| Erin Leffel, PA-C | 1194141424 | Medical Physician Assistant | Franklin, TN | 2014 |
| Faith Leffel, RPA C | 1205901683 | Dermatology Physician | Smithtown, NY | 2006 |
| Jami Leffel | 1477281426 | Speech-Language Pathologist | Celina, OH | 2022 |
| John Leffel, PSY.D., L.C.P. | 1205146958 | Clinical Psychologist | Skokie, IL | 2010 |
| Joshua Leffel | 1265956932 | Pharmacist | Cuyahoga Falls, OH | 2017 |
| Karen Leffel | 1265816375 | Pathology Specialist/Technologist | Norfolk, VA | 2015 |
| Katherine Leffel, LPC, CSAC | 1568944429 | Mental Health Counselor | Gloucester, VA | 2018 |
| Kathryn Leffel, IBCLC | 1104439421 | Lactation Consultant (Registered Nurse) | Winooski, VT | 2020 |
| Kimberly Leffel | 1679460596 | Home Health Aide | Mineral Wells, WV | 2025 |
| Kristen Leffel, NP | 1346509882 | Nurse Practitioner | Fort Wayne, IN | 2012 |
| Lauren Leffel, LMFT | 1275162505 | Marriage & Family Therapist | San Rafael, CA | 2020 |
| Linda Leffel, MD | 1871577643 | Plastic Surgery Physician | Bend, OR | 2005 |
| Luke Leffel | 1407488992 | Case Manager/Care Coordinator | Springfield, OH | 2020 |
| Lyndsey Leffel, RN | 1679218473 | Emergency Registered Nurse | Wesley Chapel, FL | 2022 |
| Mary Leffel, L.C.S.W. | 1053469635 | Mental Health Counselor | Wilmore, KY | 2007 |
| Matthew Leffel, D.C. | 1215334461 | Chiropractor | Hackensack, NJ | 2014 |
| Melissa Leffel | 1922737063 | Speech-Language Pathologist | Fayetteville, AR | 2022 |
| Morgan Leffel | 1962204222 | Personal Care Attendant | Kermit, WV | 2025 |
| Myra Leffel, M.A., CCC/SLP | 1689981581 | Speech-Language Pathologist | Brooklyn, NY | 2010 |
| Rachel Leffel, SLP | 1265093231 | Speech-Language Pathologist | Greenwood, IN | 2019 |
| Richard Leffel, D.M.D. | 1417018284 | Endodontics | Monroeville, PA | 2006 |
| Wendy Leffel, MD | 1598022204 | Addiction Medicine (Family Medicine) Physician | Bennington, VT | 2012 |
| Bethanne Leffel-Ployhar, MSW, LISW | 1003926486 | Clinical Social Worker | Zanesville, OH | 2006 |
| Hannah Leffelholz | 1700555737 | Counselor | Needham, MA | 2021 |
| David Leffell, MD | 1518940410 | Dermatology Physician | New Haven, CT | 2005 |
| Jennifer Leffell | 1679413181 | Case Manager/Care Coordinator | Beckley, WV | 2026 |
| Lauren Leffell | 1437632999 | Student in an Organized Health Care Education/Training Program | Hartsdale, NY | 2018 |
| Lisa Leffell, LCSWR | 1104945351 | Clinical Social Worker | Hartsdale, NY | 2007 |
| Mary Leffell, PH.D.,ABMLI,ABHI | 1013053867 | Specialist | Baltimore, MD | 2007 |
| Angela Leffelman, MD | 1538695671 | Obstetrics & Gynecology Physician | Chicago, IL | 2017 |
| Gary Leffelman, ARNP | 1952369928 | Nurse Practitioner | Jacksonville, FL | 2006 |
| Jenna Leffelman | 1104638170 | Personal Care Attendant | Kenai, AK | 2025 |
| Lydia Leffelman, LCSW | 1821882077 | Clinical Social Worker | Chicago, IL | 2025 |
| Tammie Leffelman, COTA/L | 1073836003 | Occupational Therapy Assistant | Homewood, IL | 2010 |
| Victoria Leffelman, SPEECH PATHOLOGIST | 1053548636 | Speech-Language Pathologist | Spartanburg, SC | 2009 |
| Marc Leffer, M.D. | 1184610545 | Emergency Medicine Physician | Clinton, MD | 2005 |
| Rachel Lefferdink, MD | 1124559042 | Dermatology Physician | Highland Park, IL | 2017 |
| Elias Lefferman, PH. D., LCSW | 1144352774 | Clinical Social Worker | Los Angeles, CA | 2007 |
| Matthew Lefferman, DO | 1184622417 | Internal Medicine Physician | Los Angeles, CA | 2005 |
| David Leffers, MD | 1700883501 | Orthopaedic Surgery Physician | Tampa, FL | 2005 |
| Denise Leffers, MFT | 1356081244 | Marriage & Family Therapist | Los Gatos, CA | 2022 |
| Gina Leffers, PTA | 1578833208 | Physical Therapy Assistant | Tampa, FL | 2012 |
| James Leffers, MD | 1881638914 | Orthopaedic Surgery Physician | Fall River, MA | 2006 |
| Jessica Leffers, FNP | 1043092372 | Family Nurse Practitioner | Fort Wayne, IN | 2023 |
| John Leffers, O.D. | 1235369349 | Optometrist | Providence, RI | 2009 |
| Kathryn Leffers | 1750187597 | Day Training/Habilitation Specialist | Ralston, NE | 2025 |
| Kevin Leffers, PHARMD | 1114807682 | Oncology Pharmacist | Fort Myers, FL | 2025 |
| Kevin Leffers, MD | 1487959649 | Orthopaedic Surgery Physician | Fort Wayne, IN | 2011 |
| Larissa Leffers, LPC | 1023313038 | Professional Counselor | Cumming, GA | 2011 |
| Pamela Leffers | 1902205545 | Speech-Language Pathologist | Fort Wayne, IN | 2014 |
| Patrick Leffers, PHARMD | 1336074251 | Emergency Medicine Pharmacist | Saint Augustine, FL | 2026 |
| Samuel Leffers, LMHC | 1467349779 | Mental Health Counselor | Indianapolis, IN | 2025 |
| Gretchen Lefferson, CNP | 1285040741 | Family Nurse Practitioner | Georgetown, OH | 2014 |
| Olive Lefferson | 1265900211 | Counselor | Seattle, WA | 2018 |
| Cody Leffert | 1346764024 | Student in an Organized Health Care Education/Training Program | Franklin, IN | 2017 |
| Colin Leffert, DO | 1881127140 | Gastroenterology Physician | Louisville, CO | 2017 |
| Fred Leffert, M.D. | 1073691580 | Allergy Physician | Greenville, SC | 2006 |
| Jacob Leffert, MD | 1689171712 | Internal Medicine Physician | Little Rock, AR | 2018 |
| James Leffert, ED.D. | 1013989565 | Psychologist | Framingham, MA | 2006 |
| John Leffert, DMD | 1659559433 | Dentist | Athens, GA | 2008 |
| Jonathan Leffert, M.D. | 1891720785 | Endocrinology, Diabetes & Metabolism Physician | Dallas, TX | 2006 |
| Kaitlin Leffert | 1649031956 | Behavior Analyst | Sherman, TX | 2024 |
| Lisa Leffert, MD | 1992795579 | Anesthesiology Physician | New Haven, CT | 2005 |
| Mary Leffert, DPT | 1063151348 | Physical Therapist | Pueblo, CO | 2022 |
| Robert Leffert, MD | 1346287083 | Anesthesiology Physician | Athens, GA | 2006 |
| Timothy Leffert, DC | 1932194842 | Chiropractor | East Haven, CT | 2005 |
| Ashley Lefferts, LMT | 1962299750 | Massage Therapist | Springfield, IL | 2025 |
| Brianne Lefferts, PT | 1780087171 | Physical Therapist | Renton, WA | 2014 |
| Cynthia Lefferts, SUD-C, AMAC | 1447125034 | Addiction (Substance Use Disorder) Counselor | Woods Cross, UT | 2025 |
| Deborah Lefferts, LMFT | 1457438228 | Marriage & Family Therapist | Fremont, CA | 2006 |
| Jackie Lefferts, M.D. | 1902834591 | Pulmonary Disease Physician | Key West, FL | 2006 |
| Jacqueline Lefferts | 1467907295 | Counselor | Salt Lake City, UT | 2016 |
| Joel Lefferts, PHD | 1194126979 | Clinical Laboratory Director (Non-physician) | Lebanon, NH | 2014 |
| Kristine Lefferts, CCC-SLP | 1245463892 | Speech-Language Pathologist | Boise, ID | 2009 |
| Sean Lefferts, MA | 1750930541 | Speech-Language Pathologist | Summerville, SC | 2019 |
| Traci Lefferts | 1720760440 | Physical Therapy Assistant | Orange City, FL | 2023 |
| William Lefferts, MD | 1033177225 | Internal Medicine Physician | Cleveland, OH | 2006 |
| Andrea Leffet, CRNP | 1396393849 | Family Nurse Practitioner | West Chester, PA | 2019 |
| Alyssa Leffew, NP | 1811704984 | Family Nurse Practitioner | Chattanooga, TN | 2024 |
| Donna Leffew, LCPC | 1851790505 | Counselor | Salisbury, MD | 2014 |
| Elaina Leffew, LPN | 1134478183 | Licensed Practical Nurse | Jamestown, TN | 2012 |
| Emma Leffew | 1699584268 | Mental Health Counselor | Mountlake Terrace, WA | 2025 |
| Hannah Leffew, DPT | 1205471174 | Physical Therapist | Suffolk, VA | 2019 |
| Heather Leffew | 1417434242 | Counselor | Aurora, CO | 2018 |
| Jason Leffew | 1891342085 | Critical Care Medicine Nurse Practitioner | Kettering, OH | 2019 |
| Jillian Leffew | 1760169858 | Social Worker | Johnson City, TN | 2023 |
| Lena Leffew, RN, BSN | 1306630355 | Registered Nurse | Chicago, IL | 2025 |
| Matthew Leffew, D.O. | 1952798597 | Anatomic Pathology & Clinical Pathology Physician | Akron, OH | 2015 |
| Melanie Leffew | 1760864516 | Case Manager/Care Coordinator | Knoxville, TN | 2015 |
| Robert Leffew, DC | 1518625821 | Chiropractor | Marietta, GA | 2021 |
| Stacia Leffew | 1639046519 | Homemaker | Oliver Springs, TN | 2025 |
| Stanley Leffew, FNP-C | 1932406980 | Nurse Practitioner | Pampa, TX | 2011 |
| Suzanne Leffew, MSN, APRN, FNP-C | 1982063244 | Family Nurse Practitioner | Jacksonville, FL | 2016 |
| Holly Leffhalm | 1649027970 | Social Worker | Scottsdale, AZ | 2024 |
| David-Jon Leffin, D.C. | 1730534769 | Chiropractor | Apple Valley, MN | 2016 |
| Alyssa Leffingwell | 1184216228 | Case Manager/Care Coordinator | Salt Lake City, UT | 2021 |
| Candice Leffingwell, MHC, LMFT | 1033091822 | Marriage & Family Therapist | Murrieta, CA | 2025 |
| Carrie Leffingwell | 1528859493 | Behavior Technician | Nashville, TN | 2025 |
| Claire Leffingwell | 1225528003 | Community Health Worker | Topeka, KS | 2018 |
| Clifford Leffingwell, D.D.S. | 1265479117 | Endodontics | Lincoln, NE | 2006 |
| Daniel Leffingwell | 1891106381 | Administrator Registered Nurse | Rensselaer, NY | 2014 |
| David Leffingwell, LMT | 1255690590 | Massage Therapist | Rome, NY | 2012 |
| H Leffingwell, O.D. | 1548234123 | Optometrist | New Berlin, WI | 2006 |
| Jade Leffingwell, PT, DPT | 1225720485 | Physical Therapist | Cumming, GA | 2023 |
| James Leffingwell, MD | 1356396493 | Otolaryngology Physician | Arlington, TX | 2006 |
| Jamie Leffingwell, DPT | 1952253858 | Physical Therapist | Redlands, CA | 2026 |
| Jessica Leffingwell, MA | 1396672366 | Addiction (Substance Use Disorder) Counselor | Huntington, WV | 2026 |
| Jill Leffingwell, M.S.W. | 1669599148 | Mental Health Counselor | Eugene, OR | 2007 |
| Kimberly Leffingwell | 1750757068 | Speech-Language Pathologist | Stillwater, OK | 2015 |
| Kylynn Leffingwell | 1033829072 | Behavior Technician | San Diego, CA | 2022 |
| Larissa Leffingwell, PA-C | 1134676828 | Medical Physician Assistant | Christiansted, VI | 2016 |
| Madison Leffingwell | 1194228585 | Case Manager/Care Coordinator | Wheelersburg, OH | 2018 |
| Mary Leffingwell | 1235496209 | Pediatric Nurse Practitioner | Missoula, MT | 2012 |
| Melissa Leffingwell | 1003938291 | Specialist | Auburn, CA | 2007 |
| Natalie Leffingwell, PT, DPT | 1225576200 | Physical Therapist | North Pole, AK | 2017 |
| Paul Leffingwell, LSCSW | 1932598935 | Clinical Social Worker | Lawrence, KS | 2015 |
| R Leffingwell | 1740227578 | Clinical Psychologist | Arlington, TX | 2006 |
| Regina Leffingwell, PT | 1841597994 | Physical Therapist | Fort Worth, TX | 2011 |
| Rhonda Leffingwell, FNP-C | 1932575172 | Family Nurse Practitioner | New Port Richey, FL | 2015 |
| Sharon Leffingwell, M.A.,CCC-SLP | 1003090598 | Speech-Language Pathologist | Collierville, TN | 2007 |
| Shelby Leffingwell, PT, DPT | 1780146159 | Physical Therapist | Frisco, TX | 2019 |
| Taetum Leffingwell | 1922770981 | Mental Health Counselor | Milford, MA | 2021 |
| Temple Leffingwell | 1205569134 | Addiction (Substance Use Disorder) Counselor | Vancouver, WA | 2022 |
| Thomas Leffingwell, MD | 1134199052 | Internal Medicine Physician | Arlington, TX | 2006 |
| David Leffke, M.D. | 1053405787 | Urology Physician | Lynchburg, VA | 2006 |
| Gary Leffke, AD | 1639200983 | Audiologist-Hearing Aid Fitter | Virginia Beach, VA | 2007 |
| Madisyn Leffle | 1285599399 | Marriage & Family Therapist | Yuba City, CA | 2025 |
| Shelly Leffle, OTR/L | 1841730900 | Occupational Therapist | Oakley, CA | 2017 |
| Alexander Leffler | 1194198242 | Counselor | Medford, OR | 2015 |
| Alexander Leffler | 1255692430 | Social Worker | Brooklyn, NY | 2012 |
| Alexandria Leffler, LMHC | 1205656097 | Mental Health Counselor | Fort Dodge, IA | 2024 |
| Angela Leffler | 1750225207 | Behavior Technician | Farmers Branch, TX | 2026 |
| Anna Leffler, OTD, OTR/L | 1588541338 | Occupational Therapist | Santa Clara, CA | 2025 |
| Anne Leffler | 1568693422 | Licensed Practical Nurse | Albany, NY | 2009 |
| April Leffler, MA | 1154967867 | Athletic Trainer | Prospect Park, PA | 2019 |
| Ashly Leffler, PA-C | 1184143422 | Medical Physician Assistant | Canton, OH | 2017 |
| Audrey Leffler, M.A. | 1801272984 | Counselor | Reading, PA | 2015 |
| Barbara Leffler, PHD | 1154527968 | Clinical Psychologist | Frisco, CO | 2007 |
| Bostyn Leffler | 1891595013 | Behavior Technician | Indianapolis, IN | 2025 |
| Brian Leffler, M.D. | 1386816403 | Family Medicine Physician | Avon, IN | 2008 |
| Brittany Leffler, MA, AMFT | 1417724915 | Marriage & Family Therapist | Los Angeles, CA | 2023 |
| Brittany Leffler | 1952928970 | Social Worker | Millersville, PA | 2020 |
| Carmen Leffler | 1164382651 | Critical Care Pharmacist | Nashville, TN | 2025 |
| Carol Leffler, MA CCC SLP | 1043794779 | Speech-Language Pathologist | West Chicago, IL | 2018 |
| Catherine Leffler, PTA | 1932674637 | Physical Therapy Assistant | Easton, MD | 2018 |
| Christine Leffler | 1043014665 | Behavior Technician | Moncks Corner, SC | 2025 |
| Christopher Leffler, MD | 1063460707 | Ophthalmology Physician | Glen Allen, VA | 2006 |
| Dale Leffler, D.O. | 1346463254 | Cardiovascular Disease Physician | Holland, MI | 2007 |
| Daniel Leffler, MD | 1144368697 | Gastroenterology Physician | Boston, MA | 2007 |
| Danielle Leffler, PA-C | 1447921671 | Physician Assistant | Atlanta, GA | 2021 |
| David Leffler | 1255801981 | Physical Therapist | Niles, MI | 2018 |
| Debby Leffler, ARNP | 1073987400 | Family Nurse Practitioner | Everett, WA | 2015 |
| Deven Leffler, DNP | 1265215990 | Family Nurse Practitioner | Louisville, KY | 2023 |
| Diana Leffler, LPN | 1356679526 | Licensed Practical Nurse | Waverly, OH | 2009 |
| Dinara Leffler | 1962122408 | Pharmacist | Kirkwood, MO | 2022 |
| Elizabeth Leffler, MS | 1801181524 | Mental Health Counselor | Albion, IN | 2011 |
| Emily Leffler | 1780315937 | Behavior Technician | Chesterfield, MI | 2022 |
| Emma Leffler | 1649899212 | Pharmacist | Sapulpa, OK | 2020 |
| Erica Leffler, LMSW | 1730682840 | Clinical Social Worker | Glendale, AZ | 2018 |
| Erick Leffler, D.C. | 1891066189 | Chiropractor | Syracuse, IN | 2012 |
| Eryn Leffler, DPT | 1053761817 | Physical Therapist | Killeen, TX | 2016 |
| Georgann Leffler, ARNP | 1598043788 | Pediatric Nurse Practitioner | Coral Gables, FL | 2011 |
| Glenna Leffler | 1194341719 | Behavior Technician | Albuquerque, NM | 2020 |
| Gretchen Leffler, PAC | 1255457677 | Physician Assistant | Kalamazoo, MI | 2007 |
| Gwenyth Leffler | 1558160630 | Adult Companion | Lincoln, NE | 2025 |
| Heather Leffler, MSW, LCSW | 1306989587 | Clinical Social Worker | Portland, OR | 2007 |
| Heidi Leffler, LCSW, BCD | 1083625503 | Clinical Social Worker | New Orleans, LA | 2006 |
| Jadyn Leffler, RBT | 1457184434 | Behavior Technician | New Port Richey, FL | 2024 |
| James Leffler, LPC | 1184388175 | Professional Counselor | Richmond, VA | 2021 |
| Janet Leffler, PC, LCDCIII | 1588094023 | Counselor | Sandusky, OH | 2013 |
| Jarrod Leffler, PHD | 1801924782 | Clinical Psychologist | Rochester, MN | 2007 |
| Jennifer Leffler | 1346008059 | Behavior Technician | Farmington Hills, MI | 2024 |
| Jenny Leffler, LCSW | 1174989461 | Clinical Social Worker | Stansbury Park, UT | 2016 |
| Jessica Leffler | 1689443335 | Occupational Therapy Assistant | Monument, CO | 2023 |
| Jessica Leffler, LMHC | 1851620330 | Mental Health Counselor | Boston, MA | 2009 |
| Joan Leffler | 1972364271 | Behavior Technician | Farmington Hills, MI | 2024 |
| Joel Leffler, M.D. | 1720102445 | Ophthalmology Physician | Plano, TX | 2007 |
| John Leffler, PHARMD | 1407153711 | Pharmacist | Anderson, SC | 2011 |
| John Leffler, R.PH. | 1417058652 | Pharmacist | Savannah, GA | 2006 |
| Julianna Leffler | 1518660646 | Physical Therapy Assistant | Lancaster, PA | 2023 |
| Julie Leffler, P.T. | 1659680585 | Physical Therapist | Dublin, OH | 2010 |
| Julie Leffler, ARNP | 1750855425 | Family Nurse Practitioner | Milwaukie, OR | 2019 |
| Kaitlin Leffler | 1568294825 | Case Manager/Care Coordinator | Ann Arbor, MI | 2024 |
| Kendra Leffler | 1477875029 | Physical Therapist | Wernersville, PA | 2010 |
| Kenneth Leffler, M.D. | 1891773313 | Gynecology Physician | Nellis Afb, NV | 2006 |
| Kerri Leffler, LCSW | 1063710283 | Clinical Social Worker | Indianapolis, IN | 2011 |
| Kevin Leffler, QMHP-C | 1396002085 | Mental Health Counselor | Portland, OR | 2012 |
| Kirstyn Leffler, MAT, LAT, ATC | 1073377818 | Athletic Trainer | Fort Riley, KS | 2024 |
| Krystal Leffler | 1164606794 | Mental Health Counselor | Knoxville, TN | 2007 |
| Leonard Leffler | 1437518735 | Specialist | Brooklyn, NY | 2016 |
| Leslie Leffler, APRN | 1164701173 | Nurse Practitioner | New Albany, IN | 2011 |
| Lisa Leffler, MD | 1295980274 | Hospitalist Physician | San Antonio, TX | 2008 |
| Luke Leffler, DPM | 1649851262 | Foot & Ankle Surgery Podiatrist | Stockbridge, GA | 2021 |
| Lynn Leffler, LCSW | 1851470082 | Clinical Social Worker | Kingston, NY | 2006 |
| Mark Leffler, ATC | 1598995524 | Athletic Trainer | Akron, OH | 2009 |
| Martha Leffler | 1780088898 | Clinical Psychologist | Cincinnati, OH | 2014 |
| Mary Leffler | 1265937783 | Occupational Therapist | Ashland, VA | 2018 |
| Mary Leffler, RPH | 1710048962 | Pharmacist | Columbus, OH | 2006 |
| Maureen Leffler, DO | 1952427965 | Pediatrics Physician | Wilmington, DE | 2007 |
| Maxwell Leffler, DO | 1255893822 | Emergency Medicine Physician | Adrian, MI | 2019 |
| Megan Leffler, PA-C | 1043038722 | Surgical Physician Assistant | Manasquan, NJ | 2024 |
| Megan Leffler, PA-C | 1174520167 | Physician Assistant | Rochester, MN | 2005 |
| Melissa Leffler, ARNP | 1821727579 | Critical Care Pediatric Nurse Practitioner | Orlando, FL | 2022 |
| Melody Leffler | 1750258190 | Day Training/Habilitation Specialist | Omaha, NE | 2025 |
| Michael Leffler, LMSW | 1679355267 | Clinical Social Worker | Lewisburg, PA | 2023 |
| Michael Leffler, LPN | 1689015471 | Licensed Practical Nurse | Struthers, OH | 2013 |
| Michaela Leffler, RN | 1104230093 | Registered Nurse | Omaha, NE | 2014 |
| Michaela Leffler, PHARMD | 1447611983 | Geriatric Pharmacist | Charleston, WV | 2016 |
| Michelle Leffler, RPH | 1922114586 | Pharmacist | Medina, NY | 2006 |
| Mitchell Leffler | 1972326106 | Physical Therapy Assistant | Lansing, MI | 2024 |
| Nicholas Leffler, DC | 1386401917 | Chiropractor | Chesapeake, VA | 2024 |
| Nicole Leffler, BCBA | 1134704760 | Behavior Analyst | Riverside, CA | 2021 |
| Nicolette Leffler, RD | 1457283673 | Registered Dietitian | Costa Mesa, CA | 2026 |
| Paige Leffler | 1194535112 | Athletic Trainer | Fort Madison, IA | 2025 |
| Pamela Leffler, MS, CCC-SLP | 1386219384 | Speech-Language Pathologist | San Carlos, CA | 2021 |
| Robert Leffler, R.PH. | 1417542408 | Geriatric Pharmacist | Louisville, KY | 2021 |
| Robert Leffler, PT | 1649376518 | Physical Therapist | Tecumseh, MI | 2006 |
| Samantha Leffler | 1245923630 | Home Health Aide | Battle Mountain, NV | 2023 |
| Sarah Leffler | 1245106327 | Registered Nurse | Indianapolis, IN | 2025 |
| Sarah Leffler, MSW, LCSW | 1336490499 | Clinical Social Worker | Alexandria, VA | 2012 |
| Sarah Leffler, LD | 1730510215 | Registered Dietitian | Canton, OH | 2013 |
| Scott Leffler, MD | 1518101534 | Anesthesiology Physician | Tempe, AZ | 2009 |
| Scout Leffler | 1932073962 | Physician Assistant | Savannah, GA | 2025 |
| Shannon Leffler | 1235880469 | Occupational Therapist | Midlothian, VA | 2022 |
| Shannon Leffler, B.A. | 1871663849 | Mental Health Counselor | Amherst, NY | 2006 |
| Shawn Leffler, DPT | 1760115380 | Physical Therapist | West Lafayette, IN | 2022 |
| Shoshana Leffler, MS, CCC-SLP | 1679012306 | Speech-Language Pathologist | Lakewood, NJ | 2017 |
| Stefanie Leffler, RN | 1598295966 | Registered Nurse | Kenton, OH | 2017 |
| Stephanie Leffler, MS, FNP | 1336179365 | Family Nurse Practitioner | Malone, NY | 2006 |
| Stephen Leffler, M.D. | 1386669125 | Emergency Medicine Physician | Burlington, VT | 2006 |
| Steven Leffler, PHD,MD | 1326056995 | Diagnostic Radiology Physician | Bedford Hills, NY | 2006 |
| Steven Leffler, RRT | 1700732146 | General Care Registered Respiratory Therapist | Lexington, KY | 2026 |
| Susan Leffler | 1598033912 | Clinical Social Worker | Fairfield, CA | 2011 |
| Tami Leffler, LCSW | 1801257902 | Clinical Social Worker | Soledad, CA | 2016 |
| Teri Leffler, BCBA | 1275043846 | Behavior Analyst | Huntington, WV | 2017 |
| Theresa Leffler | 1912336017 | Occupational Therapist | Tremont, PA | 2013 |
| Therese Leffler, MSN RN APRNBC | 1306975214 | Occupational Medicine Physician | Franklin, OH | 2007 |
| Thomas Leffler, M.D. | 1487871455 | Orthopaedic Surgery Physician | Houston, TX | 2007 |
| Thomas Leffler, MED LPC | 1982742128 | Professional Counselor | Houston, TX | 2007 |
| Tracy Leffler, LMFT | 1902563240 | Marriage & Family Therapist | Santa Cruz, CA | 2021 |
| Victoria Leffler, PT | 1871294298 | Physical Therapist | Lincoln, NE | 2023 |
| Weslyn Leffler, PAC | 1447502828 | Surgical Physician Assistant | Lakeland, FL | 2012 |
| William Leffler, DDS | 1073807590 | General Practice Dentistry | Galion, OH | 2011 |
| William Leffler, O.D. | 1245374370 | Corneal and Contact Management Optometrist | Palm Beach Gardens, FL | 2007 |
| William Leffler, D.D.S. | 1932411881 | Dentist | Massillon, OH | 2010 |
| Sarah Leffler Wagoner, MD | 1700319688 | Pediatrics Physician | Tigard, OR | 2017 |
| Evelyn Leffler-Gutierrez, RBT | 1992523708 | Behavior Technician | Winter Park, FL | 2024 |
| Roberta Leffler-Kluger | 1205110517 | School Psychologist | Woodmere, NY | 2011 |
| Krystalyn Leffler-Macon, CLD, | 1477352029 | Doula | Lehi, UT | 2025 |
| David Leffmann, MPT | 1841295276 | Physical Therapist | Seattle, WA | 2005 |
| Paula Leffmann, L.C.S.W. | 1679697577 | Clinical Social Worker | Franklinton, LA | 2007 |
| Alicia Leffner | 1790270700 | Personal Care Attendant | Henderson, NV | 2018 |
| Dorothy Lefford, OTR/L | 1679953350 | Pediatric Occupational Therapist | Ormond Beach, FL | 2015 |
| Jotham Lefford, M.D. | 1447227186 | Family Medicine Physician | Springfield, OR | 2006 |
| Keren Lefford, PA | 1003815846 | Physician Assistant | Paradise Valley, AZ | 2005 |
| Morgan Lefford, SLP | 1801391651 | Speech-Language Pathologist | Kenmore, NY | 2018 |
| Mackenzie Lefforge, DPT | 1780047209 | Physical Therapist | Upper Arlington, OH | 2016 |
| Nan Lefforge, LCSW | 1497982409 | Clinical Social Worker | Houston, TX | 2009 |
| Noelle Lefforge, PH.D. | 1538422563 | Psychologist | Denver, CO | 2012 |
| Marilyn Leffort | 1659828010 | Physical Therapist | Rehoboth, MA | 2016 |
| Kelsie Leffue, COTA/L | 1831722537 | Occupational Therapy Assistant | Durham, NC | 2020 |
| Emma Lefgren, RBT | 1558057141 | Behavior Technician | Orem, UT | 2023 |
| Helyn Lefgren, MD | 1114091527 | Family Medicine Physician | North Pole, AK | 2006 |
| Lesli Lefgren, RN | 1831491158 | Registered Nurse | Ogden, UT | 2010 |
| Kimberly Lefholz, DO | 1154319945 | Obstetrics & Gynecology Physician | Arlington, TX | 2005 |
| Marc Lefief, PHARM D. | 1770566002 | Pharmacist | Stockton, CA | 2005 |
| Dominique Lefievre, P.T.A. | 1871983775 | Physical Therapy Assistant | Springfield, OR | 2015 |
| Kathleen Lefiles, MD | 1093652919 | Student in an Organized Health Care Education/Training Program | Phoenix, AZ | 2026 |
| Jeanne Lefils, LCSW | 1386920775 | Mental Health Counselor | Boulder, CO | 2011 |
| Stacey Lefing, PSY.D. | 1457653156 | Clinical Psychologist | Ashburn, VA | 2010 |
| William Lefing, MD | 1831207091 | Dermatology Physician | Oceanside, NY | 2006 |
| Nicole Lefiti | 1013740356 | Personal Care Attendant | Las Vegas, NV | 2024 |
| Patrick Lefiti | 1013458280 | Behavior Technician | Torrance, CA | 2017 |
| Noelle Lefitz, CNM | 1548362205 | Advanced Practice Midwife | Portland, OR | 2006 |
| Madeleine Lefker, M.A., CCC SLP | 1427172543 | Speech-Language Pathologist | Uncasville, CT | 2007 |
| Wyatt Lefker | 1922839356 | Addiction (Substance Use Disorder) Counselor | Cortland, OH | 2024 |
| Alan Lefkin, MD FACP | 1760585707 | Internal Medicine Physician | Pembroke Pines, FL | 2006 |
| Abbey Lefko, LCMHCA | 1245071513 | Mental Health Counselor | Lewisville, NC | 2024 |
| Christine Lefko, DPT | 1588970099 | Physical Therapist | Callahan, FL | 2010 |
| Jeffrey Lefko | 1063350817 | Anatomic Pathology & Clinical Pathology Physician | Maywood, IL | 2026 |
| Nicole Lefko | 1063398675 | Speech-Language Pathologist | Orland Park, IL | 2025 |
| Paul Lefko, PT | 1952489668 | Physical Therapist | Simi Valley, CA | 2006 |
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).