Providers Frantzcesse Greffin to David Gregg, MD
300 individual NPIs in the federal registry, part 8,293 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. 85 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Frantzcesse Greffin | 1639717036 | Behavior Analyst | Staten Island, NY | 2019 |
| Jessica Greffin | 1013787431 | Behavior Technician | Sunrise, FL | 2024 |
| Mahasha Greffin | 1851245161 | Physician Assistant | Fredericksburg, VA | 2026 |
| Thomas Greffly, ATC LAT | 1265927883 | Athletic Trainer | Crawfordsville, IN | 2018 |
| Charles Greffrath, DMD | 1255357281 | General Practice Dentistry | Worcester, MA | 2006 |
| Tyler Greffrath, DPT | 1649986266 | Physical Therapist | Boston, MA | 2023 |
| Annette Grefig, DPT | 1528546215 | Physical Therapist | Milwaukee, WI | 2018 |
| Elizabeth Grefrath, LMSW | 1417426818 | Social Worker | Newark, NY | 2018 |
| Scott Grefrath, LCSW-R | 1528075710 | Clinical Social Worker | Rochester, NY | 2006 |
| Melinda Grefseng, DPH | 1073981338 | Pharmacist | Lewisburg, TN | 2015 |
| Pam Grefsheim | 1093806770 | Speech-Language Pathologist | West Bend, WI | 2006 |
| Alexandria Greg | 1669091567 | Case Manager/Care Coordinator | Akron, OH | 2020 |
| Danielle Greg, PSY.D | 1619237583 | Clinical Psychologist | Calabasas, CA | 2012 |
| Diana Greg, PH D | 1275676652 | Psychologist | La Jolla, CA | 2007 |
| Mark Greg, PHARMD, RPH | 1285976472 | Pharmacist | Darien, IL | 2013 |
| Richard Greg, PA-C | 1376093328 | Physician Assistant | Bethlehem, PA | 2016 |
| Brittany Grega, PA-C | 1306327168 | Physician Assistant | Powderly, KY | 2018 |
| Brittney Grega | 1528358272 | School Social Worker | Nashville, TN | 2011 |
| Catherine Grega, PSY.D. | 1427405430 | Psychologist | New York, NY | 2016 |
| David Grega, PA | 1609885656 | Physician Assistant | Sacramento, CA | 2006 |
| Douglas Grega | 1609375054 | Case Manager/Care Coordinator | Cleveland, OH | 2018 |
| Gerald Grega, DC | 1003821471 | Chiropractor | Inglewood, CA | 2006 |
| Gerard Grega, P.A.-C | 1063404564 | Physician Assistant | Lehighton, PA | 2005 |
| Hayleigh Grega | 1942099478 | Mental Health Counselor | Sylvania, OH | 2025 |
| John Grega, LPC | 1033861620 | Professional Counselor | Marietta, OH | 2022 |
| Julianne Grega, PA-C | 1609168038 | Physician Assistant | Pottsville, PA | 2011 |
| Kaitlyn Grega, RBT | 1558146381 | Behavior Technician | Mesa, AZ | 2023 |
| Katherine Grega, APRN-CNP | 1487472452 | Women's Health Nurse Practitioner | Cleveland, OH | 2024 |
| Kathleen Grega, LCSW | 1053726620 | Clinical Social Worker | New London, CT | 2014 |
| Kim Grega, M.ED, LPC | 1265801914 | Mental Health Counselor | Kirkwood, MO | 2015 |
| Kristen Grega | 1043918816 | Personal Care Attendant | Fairmont, WV | 2023 |
| Kristen Grega | 1235830720 | Behavior Analyst | Macon, GA | 2023 |
| Lindsey Grega, DPT | 1275108110 | Physical Therapist | Hudson, WI | 2021 |
| Lyndsay Grega, RD | 1063340107 | Registered Dietitian | Bellmawr, NJ | 2026 |
| Mark Grega, MA, LCMHC | 1003709882 | Mental Health Counselor | Mooresville, NC | 2025 |
| Meagan Grega, M.D. | 1487849519 | Hospitalist Physician | Allentown, PA | 2007 |
| Michelle Grega, RDH | 1477802163 | Dental Hygienist | Rio Rancho, NM | 2012 |
| Samantha Grega, MS, BCBA | 1427543420 | Behavior Analyst | Anchorage, AK | 2018 |
| Shannon Grega | 1720731714 | Registered Dietitian | Jacksonville, FL | 2022 |
| Shaun Grega | 1265278899 | Student in an Organized Health Care Education/Training Program | Indianapolis, IN | 2024 |
| Sylwester Grega | 1922924190 | Nurse Practitioner | Royal Oak, MI | 2026 |
| Tennille Grega, ATC | 1659642411 | Athletic Trainer | Roanoke, VA | 2012 |
| Tate Gregaitis, FNP-BC | 1881971216 | Family Nurse Practitioner | Grand Rapids, MI | 2011 |
| Frank Gregalit, PA | 1356056402 | Physician Assistant | Morgantown, WV | 2023 |
| James Gregalot, DDS | 1730274259 | General Practice Dentistry | Lake Worth, FL | 2006 |
| Jill Gregalot, LPN | 1912349267 | Licensed Practical Nurse | Sebring, FL | 2013 |
| Jennifer Gregalunas, MSN, RN | 1497570493 | Ambulatory Care Registered Nurse | Omaha, NE | 2024 |
| Heather Gregan, MA, CADC | 1972739779 | Addiction (Substance Use Disorder) Counselor | Paoli, PA | 2009 |
| Jennifer Gregan | 1780136556 | Mental Health Counselor | Charleston, WV | 2016 |
| Lindsey Gregan, PA-C | 1326710138 | Physician Assistant | Elizabethtown, PA | 2021 |
| Melanie Gregan | 1730364548 | Audiologist | Minneapolis, MN | 2007 |
| Molly Gregan | 1720151376 | Psychologist | Tempe, AZ | 2006 |
| Sienna Gregan, AMFT | 1639648520 | Mental Health Counselor | Oakland, CA | 2018 |
| Anne Gregan-Ver | 1780876565 | Marriage & Family Therapist | San Leandro, CA | 2007 |
| Alexis Greganti | 1073202438 | Behavior Technician | San Bernardino, CA | 2023 |
| Erin Greganti | 1487488003 | Behavior Technician | Daytona Beach, FL | 2024 |
| Mac Greganti, MD | 1063587806 | Geriatric Medicine (Internal Medicine) Physician | Chapel Hill, NC | 2006 |
| Josie Gregar, NP-C | 1770628281 | Family Nurse Practitioner | Greenville, SC | 2007 |
| Lisa Gregar, RN | 1396150843 | Registered Nurse | Mauston, WI | 2014 |
| Paige Gregar, MSN-ED, RN-BC | 1780529453 | Registered Nurse | Tomah, WI | 2026 |
| Lauren Gregarczyk, LCDP | 1528819844 | Mental Health Counselor | Middletown, RI | 2024 |
| Julia Gregarek | 1518622166 | Behavior Technician | Farmington Hills, MI | 2021 |
| Sydney Gregart, DPT | 1740999572 | Physical Therapist | Ann Arbor, MI | 2022 |
| Amanda Gregas, PH.D. | 1992837918 | Counseling Psychologist | Milwaukee, WI | 2007 |
| Anne Gregas, O.D. | 1770540080 | Optometrist | Melbourne, FL | 2006 |
| Carly Gregas | 1073281143 | Speech-Language Pathologist | Pottsville, PA | 2021 |
| Jennifer Gregas, APNP | 1578759122 | Adult Health Nurse Practitioner | Onalaska, WI | 2007 |
| Leanna Gregas, MS, OTR/L | 1942021266 | Occupational Therapist | Pittsburgh, PA | 2024 |
| Patricia Gregas, OTR | 1558502708 | Occupational Therapist | Pottsville, PA | 2009 |
| Gary Gregasavitch, DPM | 1316992381 | Foot & Ankle Surgery Podiatrist | Gainesville, VA | 2006 |
| Alexander Gregath, M.D., M.S. | 1952005738 | Student in an Organized Health Care Education/Training Program | Cincinnati, OH | 2023 |
| Trevor Gregath, MD | 1164866976 | Neurology Physician | Lincoln, NE | 2013 |
| Alex Greger, OTR/L | 1427764745 | Occupational Therapist | Sioux Falls, SD | 2023 |
| Alexander Greger, RN | 1629997325 | Registered Nurse | Albertson, NY | 2026 |
| Andria Greger | 1740696475 | Clinical Social Worker | Reno, NV | 2014 |
| Aniko Greger, M.D. | 1831427707 | Pediatrics Physician | New Orleans, LA | 2009 |
| Brooks Greger, CRNA | 1073663688 | Certified Registered Nurse Anesthetist | Odessa, TX | 2007 |
| Cassandra Greger | 1174892632 | Clinical Social Worker | Staten Island, NY | 2011 |
| Danielle Greger | 1982270492 | Speech-Language Pathologist | Spokane, WA | 2021 |
| Devin Greger, PT, DPT | 1750109773 | Physical Therapist | Livonia, MI | 2024 |
| Elizabeth Greger | 1518764562 | Personal Care Attendant | Cedar Rapids, NE | 2025 |
| Erin Greger | 1184077661 | Speech-Language Pathologist | Fairview, NC | 2016 |
| Gary Greger, DPM | 1881635043 | Foot & Ankle Surgery Podiatrist | North Canton, OH | 2006 |
| Gloria Greger | 1659948354 | Addiction (Substance Use Disorder) Counselor | Milford, OH | 2021 |
| Jacqueline Greger, PA-C | 1588035729 | Physician Assistant | Stony Brook, NY | 2015 |
| Jennifer Greger, M.D. | 1942200829 | Anesthesiology Physician | Dallas, TX | 2005 |
| Katherine Greger | 1952705923 | Physician Assistant | Camden, NJ | 2014 |
| Katie Greger | 1811303324 | Emergency Medicine Physician | Rochester, MN | 2014 |
| Kimberly Greger, RN | 1215309216 | School Registered Nurse | Puyallup, WA | 2015 |
| Kirby Greger | 1982419842 | Certified Registered Nurse Anesthetist | Rochester, MN | 2025 |
| Megan Greger, PA-C | 1346623170 | Medical Physician Assistant | New York, NY | 2015 |
| Meghan Greger, AU.D., CCC-A | 1477854107 | Audiologist | Austin, TX | 2010 |
| Michael Greger, MD | 1669779641 | General Practice Physician | Rockville, MD | 2011 |
| Nancy Greger | 1851306302 | Pediatric Endocrinology Physician | Albuquerque, NM | 2006 |
| Paige Greger, OTR/L | 1740925551 | Occupational Therapist | Voorhees, NJ | 2022 |
| Patrick Greger | 1093189334 | Internal Medicine Physician | Amityville, NY | 2015 |
| Patrick Greger, PA-C | 1609232883 | Surgical Physician Assistant | Smithtown, NY | 2016 |
| Philip Greger, MD | 1578532966 | Specialist | Conroe, TX | 2006 |
| Rebecca Greger, LAT,ATC | 1467036020 | Athletic Trainer | Springfield, VA | 2021 |
| Ronald Greger, M.D. | 1922093723 | Adult Medicine Physician | Gaithersburg, MD | 2005 |
| Sandy Greger, O.T.R/L. | 1245239003 | Occupational Therapist | Bethlehem, PA | 2005 |
| Sophie Greger, LCSW | 1053065482 | Clinical Social Worker | Wexford, PA | 2022 |
| Stacey Greger | 1568022234 | Mental Health Counselor | Lake Butler, FL | 2019 |
| Stephanie Greger, M.D. | 1912138132 | Rheumatology Physician | Ventura, CA | 2009 |
| Susan Greger, M.D. | 1760447387 | Family Medicine Physician | Phoenix, AZ | 2006 |
| Nansi Greger-Holt | 1851422612 | Nurse Practitioner | Chapel Hill, NC | 2007 |
| Max Greger-Moser, APRN | 1295136455 | Psychiatric/Mental Health Nurse Practitioner | New Haven, CT | 2014 |
| Gail Gregerich, ARNP | 1396895892 | Nurse Practitioner | Seattle, WA | 2007 |
| Alissa Gregersen, AG-ACNP | 1922508902 | Nurse Practitioner | Waterville, ME | 2018 |
| Beau Gregersen, D.C | 1013056456 | Chiropractor | New York, NY | 2007 |
| Collette Gregersen, LPC | 1326564956 | Professional Counselor | Pocatello, ID | 2017 |
| Elizabeth Gregersen | 1336309988 | Mental Health Counselor | Auburn, CA | 2008 |
| Emma Gregersen | 1922748094 | Attendant Care Provider | Lincoln, NE | 2022 |
| Erik Gregersen, PT | 1235422064 | Physical Therapist | Green Bay, WI | 2011 |
| Gerald Gregersen, PHD, LP | 1124080098 | Psychologist | Faribault, MN | 2006 |
| Heidi Gregersen, FNP | 1467953125 | Women's Health Nurse Practitioner | Idaho Falls, ID | 2018 |
| Howard Gregersen, M.D. | 1467474999 | Internal Medicine Physician | Lompoc, CA | 2006 |
| Isabel Gregersen, LCSW | 1174277958 | Clinical Social Worker | Bayfield, WI | 2022 |
| Jamey Gregersen, ARNP | 1164823092 | Psychiatric/Mental Health Nurse Practitioner | Fort Dodge, IA | 2014 |
| Jemini Gregersen | 1154031748 | Behavior Technician | Cedar City, UT | 2022 |
| Katherine Gregersen, D.O. | 1689993206 | Pediatric Critical Care Medicine Physician | Tacoma, WA | 2010 |
| Katherine Gregersen | 1760343891 | Case Manager/Care Coordinator | Seattle, WA | 2025 |
| Kirsten Gregersen | 1730519240 | Mental Health Counselor | Salt Lake City, UT | 2013 |
| Laura Gregersen, DPT | 1356791198 | Physical Therapist | Billings, MT | 2016 |
| Leslie Gregersen, R.PH | 1285624197 | Pharmacist | Salt Lake City, UT | 2005 |
| Maren Gregersen, MD | 1598381220 | Neurology Physician | New Orleans, LA | 2020 |
| Mary Gregersen | 1679099972 | Mental Health Counselor | Tigard, OR | 2017 |
| Myly Gregersen, APRN, FNP-C | 1720955412 | Family Nurse Practitioner | Price, UT | 2025 |
| Natalie Gregersen | 1295166064 | Acupuncturist | Boise, ID | 2013 |
| Peter Gregersen | 1417073263 | Rheumatology Physician | Manhasset, NY | 2007 |
| Susan Gregersen | 1467946343 | Personal Care Attendant | Henderson, NV | 2018 |
| Teresa Gregersen, NLC | 1376167270 | Mental Health Counselor | Lafayette, CO | 2020 |
| Adriana Gregerson | 1629862164 | Behavior Technician | Farmington Hills, MI | 2025 |
| Allison Gregerson, LPC, NCC, NCSC | 1598363202 | Professional Counselor | Metairie, LA | 2020 |
| Anders Gregerson | 1568224566 | Marriage & Family Therapist | Edina, MN | 2024 |
| Andrea Gregerson, MD | 1730678392 | Family Medicine Physician | Colorado Springs, CO | 2018 |
| Asante Gregerson, DNP, AGNP-C | 1982383881 | Nurse Practitioner | Raleigh, NC | 2023 |
| Britton Gregerson, OTR/L | 1831703396 | Occupational Therapist | Rainbow City, AL | 2020 |
| Bryce Gregerson, M.D. | 1821333469 | Emergency Medicine Physician | Temple, TX | 2012 |
| Casey Gregerson, CCC SLP | 1467942177 | Speech-Language Pathologist | Lombard, IL | 2018 |
| Celestine Gregerson, MD | 1679101943 | Ophthalmic Plastic and Reconstructive Surgery Physician | New York, NY | 2020 |
| Cory Gregerson, RBT | 1871223636 | Behavior Technician | Oak Harbor, WA | 2022 |
| Daniel Gregerson, LCPC | 1033236344 | Professional Counselor | Kalispell, MT | 2007 |
| Darryl Gregerson, DC | 1669587077 | Chiropractor | Broken Arrow, OK | 2006 |
| Douglas Gregerson, D.C. | 1659355139 | Radiology Chiropractor | Geneva, IL | 2005 |
| Elaina Gregerson, PT, DPT | 1275004954 | Physical Therapist | Bountiful, UT | 2018 |
| Gary Gregerson, M.D. | 1801834866 | Specialist | Nampa, ID | 2006 |
| Hailee Gregerson, OTD | 1376382523 | Occupational Therapist | Billings, MT | 2024 |
| Jacob Gregerson, MD | 1417212291 | Pediatrics Physician | Gahanna, OH | 2012 |
| Jd Gregerson | 1821802125 | Military Health Care Provider | Jbsa Ft Sam Houston, TX | 2025 |
| Jeffrey Gregerson, D.M.D. | 1114238128 | Pediatric Dentistry | Austin, TX | 2010 |
| Joan Gregerson | 1427609635 | Health Educator | Denver, CO | 2019 |
| Julie Gregerson, MSED | 1801732938 | Mental Health Counselor | Crown Point, IN | 2026 |
| Kaitlin Gregerson, CADC CANDIDATE | 1760977904 | Addiction (Substance Use Disorder) Counselor | Portland, OR | 2018 |
| Kaitlyn Gregerson | 1285553115 | Student in an Organized Health Care Education/Training Program | Gary, IN | 2026 |
| Kelly Gregerson, P.T. | 1750656229 | Pediatric Physical Therapist | Visalia, CA | 2012 |
| Kelsey Gregerson, MOT, OTR/L | 1578172110 | Occupational Therapist | Elkhorn, NE | 2020 |
| Kevin Gregerson, RPH | 1396209508 | Pharmacist | South Lake Tahoe, CA | 2019 |
| Kristen Gregerson | 1427995646 | Behavior Technician | Fort Smith, AR | 2026 |
| Kyle Gregerson, DPT | 1366757841 | Physical Therapist | Breckenridge, MN | 2010 |
| Mark Gregerson, MD | 1508809930 | Orthopaedic Surgery Physician | Moose Lake, MN | 2006 |
| Mary Gregerson, PHD | 1326265810 | Psychologist | Leavenworth, KS | 2007 |
| Nancy Gregerson, LPCC | 1104993781 | Professional Counselor | Northfield, MN | 2006 |
| Ned Gregerson, DDS,MAGD,FICD | 1689729485 | Dentist | St George, UT | 2007 |
| Nikki Gregerson | 1568734283 | Addiction (Substance Use Disorder) Counselor | Salt Lake City, UT | 2012 |
| Pamela Gregerson, MD | 1891003398 | Pediatrics Physician | Houston, TX | 2010 |
| Paul Gregerson, M.D. | 1417022336 | Internal Medicine Physician | Los Angeles, CA | 2006 |
| Rose Gregerson, RN | 1841145091 | Registered Nurse | Minneapolis, MN | 2026 |
| Sadie Gregerson | 1598230542 | Counselor | Taylorsville, UT | 2018 |
| Samuel Gregerson, DO | 1477136752 | Internal Medicine Physician | Detroit, MI | 2021 |
| Scout Gregerson, PA-C | 1598546509 | Physician Assistant | Bend, OR | 2023 |
| Spencer Gregerson, MD | 1972009546 | Psychiatry Physician | Ann Arbor, MI | 2018 |
| Tammy Gregerson, P.A.-C | 1629122767 | Physician Assistant | Crystal, MN | 2007 |
| Trevor Gregerson, CMHC | 1770247298 | Mental Health Counselor | Monroe, UT | 2021 |
| Zachary Gregerson, D.D.S. | 1063862274 | General Practice Dentistry | Janesville, WI | 2016 |
| Coyette Gregerson-Giles, APRN, CNP | 1093503039 | Family Nurse Practitioner | Rochester, MN | 2025 |
| Nicole Gregerson-Hollenbeck | 1740733518 | Behavior Analyst | The Dalles, OR | 2016 |
| Justin Greges, PA-C | 1770738569 | Physician Assistant | Jersey City, NJ | 2008 |
| Youhana Greges, MD | 1902034135 | Hospitalist Physician | Clearwater, FL | 2009 |
| Amber Greget | 1548764277 | Behavior Technician | Spokane, WA | 2018 |
| Martin Greget, MD | 1255409843 | Otolaryngology Physician | Renton, WA | 2006 |
| Adam Gregg, MD | 1306093851 | Diagnostic Radiology Physician | Wichita, KS | 2008 |
| Adreama Gregg, LPN | 1255107835 | Licensed Practical Nurse | Parkersburg, WV | 2023 |
| Adrienne Gregg, LMSW | 1679944797 | Social Worker | Detroit, MI | 2015 |
| Aiden Gregg | 1225799844 | Peer Specialist | Beaverton, OR | 2022 |
| Akemi Gregg, RN | 1619850609 | Psychiatric/Mental Health Registered Nurse | Vista, CA | 2025 |
| Alana Gregg, MS | 1336735646 | Counselor | Lower Gwynedd, PA | 2020 |
| Alek Gregg | 1154183382 | Case Manager/Care Coordinator | Wooster, OH | 2024 |
| Alessandra Gregg, MD | 1679216493 | Student in an Organized Health Care Education/Training Program | New York, NY | 2022 |
| Alexander Gregg, MD | 1467196246 | Student in an Organized Health Care Education/Training Program | New York, NY | 2022 |
| Alexandra Gregg, RD, LD | 1598498453 | Registered Dietitian | Lees Summit, MO | 2022 |
| Alice Gregg, MSSA, LSW | 1821591298 | Social Worker | Lorain, OH | 2018 |
| Alicia Gregg | 1134777592 | Home Health Registered Nurse | Kingsley, MI | 2019 |
| Alicia Gregg, PT, DPT | 1497099204 | Physical Therapist | Powder Springs, GA | 2012 |
| Alicia Gregg | 1649998105 | Mental Health Counselor | The Woodlands, TX | 2022 |
| Alicia Gregg | 1760305809 | Pharmacist | Morristown, TN | 2026 |
| Allie Gregg, LPCC | 1982101374 | Behavior Technician | Rochester, MN | 2018 |
| Allison Gregg | 1093234551 | Student in an Organized Health Care Education/Training Program | Jacksonville, FL | 2017 |
| Allison Gregg | 1386343911 | Clinical Neuropsychologist | Belmont, MA | 2023 |
| Allison Gregg, MS | 1417732793 | Nutrition Education Nutritionist | Durham, NC | 2023 |
| Allison Gregg | 1548070691 | Personal Care Attendant | South Charleston, WV | 2025 |
| Almanda Gregg, QMHS | 1184135956 | Case Manager/Care Coordinator | Lisbon, OH | 2017 |
| Alysia Gregg | 1235880733 | Student in an Organized Health Care Education/Training Program | Lebanon, OR | 2022 |
| Amanda Gregg | 1104206218 | Mental Health Counselor | Grand Junction, CO | 2015 |
| Amanda Gregg, PSY.D., L.P. | 1215278205 | Clinical Psychologist | Minneapolis, MN | 2013 |
| Amanda Gregg | 1235901208 | Specialist | Plainview, NY | 2023 |
| Amanda Gregg | 1770984759 | Marriage & Family Therapist | Mc Murray, PA | 2014 |
| Amber Gregg | 1124300660 | Licensed Practical Nurse | Salt Lake City, UT | 2011 |
| Amber Gregg | 1700728946 | Case Manager/Care Coordinator | Knoxville, TN | 2026 |
| Amber Gregg | 1710479597 | Pharmacist | Waconia, MN | 2018 |
| Amy Gregg, PA | 1285611665 | Medical Physician Assistant | Spokane, WA | 2005 |
| Amy Gregg, PHARMD | 1457179152 | Pharmacist | Whiteriver, AZ | 2024 |
| Amy Gregg, PH.D., M.A. | 1578762407 | Clinical Psychologist | Soquel, CA | 2007 |
| Amy Gregg, APRN-BC | 1629110739 | Family Nurse Practitioner | Richmond, KY | 2007 |
| Andrea Gregg, SLP | 1245343847 | Speech-Language Pathologist | Saint Louis, MO | 2006 |
| Andrea Gregg, AS | 1558576868 | Specialist | Derry, NH | 2007 |
| Andrea Gregg, LCSW | 1821790247 | Clinical Social Worker | Austin, TX | 2023 |
| Andrew Gregg, D.C. | 1295085348 | Chiropractor | Flagstaff, AZ | 2012 |
| Andrew Gregg | 1427504489 | Certified Registered Nurse Anesthetist | Jefferson Hills, PA | 2016 |
| Andrew Gregg, PHARM.D. | 1558703603 | Pharmacist | Gaffney, SC | 2013 |
| Andrew Gregg, MD PHD | 1942769104 | Gastroenterology Physician | Thousand Oaks, CA | 2019 |
| Angela Gregg, M.D. | 1669450110 | Family Medicine Physician | Duncansville, PA | 2006 |
| Anne Gregg, PA | 1295708568 | Physician Assistant | Melbourne, FL | 2006 |
| Anniina Gregg | 1598233686 | Acupuncturist | Cedar Park, TX | 2018 |
| Anthony Gregg, MD | 1205890399 | Maternal & Fetal Medicine Physician | Columbia, SC | 2006 |
| Antone Gregg | 1790504785 | Personal Care Attendant | Las Vegas, NV | 2024 |
| Arianna Gregg | 1023957826 | Student in an Organized Health Care Education/Training Program | Roseville, CA | 2026 |
| Arran Gregg, LCSW | 1033225545 | Clinical Social Worker | Ayden, NC | 2006 |
| Ashley Gregg, MD | 1144640152 | Pediatrics Physician | Calabasas, CA | 2014 |
| Ashley Gregg, PHARMD | 1205350790 | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | Tucson, AZ | 2017 |
| Ashley Gregg | 1427657634 | Family Nurse Practitioner | East Dundee, IL | 2020 |
| Ashley Gregg, H.I.S. | 1447024625 | Hearing Instrument Specialist | Harrisburg, PA | 2023 |
| Ashley Gregg | 1841988532 | Physical Therapist | Humble, TX | 2023 |
| Ashley Gregg, MS,PT | 1891843090 | Pediatric Physical Therapist | Conway, AR | 2007 |
| Audra Gregg | 1982326377 | Personal Care Attendant | Rainelle, WV | 2022 |
| Aurora Gregg | 1508451519 | Community Health Worker | Fairbanks, AK | 2021 |
| Austin Gregg, MD | 1649116120 | Student in an Organized Health Care Education/Training Program | Philadelphia, PA | 2026 |
| Ayla Gregg | 1447601810 | Psychiatric/Mental Health Nurse Practitioner | Kearney, NE | 2016 |
| Barbara Gregg, CFNP | 1245223494 | Family Medicine Physician | Saint Stephen, SC | 2005 |
| Belynda Gregg | 1881941193 | Case Manager/Care Coordinator | Kotzebue, AK | 2012 |
| Benjamin Gregg, DDS, MS | 1700061330 | Orthodontics and Dentofacial Orthopedics Dentistry | Ashland, OH | 2008 |
| Beth Gregg, PHARMD | 1295173300 | Pharmacist | Bridgeport, WV | 2013 |
| Billy Gregg | 1093477184 | Student in an Organized Health Care Education/Training Program | Purcell, OK | 2021 |
| Blair Gregg | 1245922673 | Home Health Aide | Parkersburg, WV | 2023 |
| Bobbie Gregg, RD, CSOWM, LDN | 1265973093 | Obesity and Weight Management Nutrition Registered Dietitian | Johnson City, TN | 2017 |
| Bonnie Gregg, DNP, APRN, FNP-C | 1346860061 | Family Nurse Practitioner | Saint Louis, MO | 2020 |
| Bradley Gregg, M.D. | 1871549626 | Emergency Medicine Physician | Saint Charles, MO | 2006 |
| Brandon Gregg, MSSW, CSW | 1225064025 | Social Worker | Erlanger, KY | 2006 |
| Brendan Gregg, DO | 1457938672 | Student in an Organized Health Care Education/Training Program | Bradenton, FL | 2021 |
| Brenna Gregg, LPC | 1841170479 | Mental Health Counselor | Wichita, KS | 2025 |
| Brent Gregg | 1558652610 | Speech-Language Pathologist | Conway, AR | 2011 |
| Brian Gregg, PHD, OTR/L, CHT | 1003913708 | Occupational Therapist | Fort Sam Houston, TX | 2006 |
| Brian Gregg | 1548761869 | Physical Therapist | Lansing, MI | 2018 |
| Brian Gregg, DC | 1871624478 | Chiropractor | Woodstock, GA | 2007 |
| Brianna Gregg | 1508664483 | Behavior Technician | Kissimmee, FL | 2025 |
| Bridget Gregg, OTR | 1639847130 | Occupational Therapist | Seymour, IN | 2021 |
| Brigid Gregg | 1467698696 | Pediatric Endocrinology Physician | Middleton, WI | 2008 |
| Bruce Gregg, MD | 1659463222 | Internal Medicine Physician | Auburn, WA | 2006 |
| Bryce Gregg, RN | 1144608258 | Certified Registered Nurse Anesthetist | New York, NY | 2015 |
| Bryce Gregg, MSN, APRN, FNP-C | 1952944696 | Family Nurse Practitioner | Houston, TX | 2019 |
| Caitlin Gregg, MLMT | 1891495628 | Massage Therapist | Lake Placid, NY | 2023 |
| Caitlyn Gregg, COTA | 1578340311 | Occupational Therapy Assistant | Muskogee, OK | 2023 |
| Caley Gregg, PH.D. | 1073891594 | Counseling Psychologist | Norman, OK | 2011 |
| Callie Gregg | 1134517220 | Addiction (Substance Use Disorder) Counselor | San Jose, CA | 2014 |
| Calvin Gregg | 1801542832 | Behavior Analyst | Costa Mesa, CA | 2022 |
| Cameron Gregg | 1538010541 | Behavior Technician | Gardena, CA | 2026 |
| Candace Gregg, APRN | 1821778085 | Family Nurse Practitioner | Seattle, WA | 2023 |
| Candice Gregg, ARNP | 1497268635 | Nurse Practitioner | Tallahassee, FL | 2017 |
| Carol Gregg, LPC | 1205523792 | Professional Counselor | Pittsburgh, PA | 2023 |
| Carol Gregg, RN, IBCLC | 1205681087 | Lactation Consultant (Registered Nurse) | Sarasota, FL | 2024 |
| Carol Gregg, RN | 1487361820 | Registered Nurse | Schenectady, NY | 2022 |
| Carolyn Gregg, PA-C | 1356116842 | Physician Assistant | Galveston, TX | 2023 |
| Carrie Gregg | 1699159954 | Professional Counselor | Perry, MI | 2015 |
| Casey Gregg | 1437086980 | Peer Specialist | Charlotte, NC | 2026 |
| Catherine Gregg, CRNP | 1043958374 | Nurse Practitioner | Upper St Clair, PA | 2022 |
| Charlene Gregg | 1558523126 | Nurse's Aide | Burlington, NJ | 2008 |
| Charles Gregg, MD | 1699744474 | Anesthesiology Physician | Goldsboro, NC | 2006 |
| Charles Gregg, LMFT | 1700943834 | Mental Health Counselor | La Mesa, CA | 2007 |
| Chelsey Gregg | 1912766213 | Behavior Technician | New Ulm, MN | 2024 |
| Cheree Gregg | 1063181691 | Mental Health Counselor | Westampton, NJ | 2021 |
| Cheryl Gregg | 1639944010 | Community Health Worker | Charleston, WV | 2023 |
| Cheyanna Gregg, RBT | 1861267833 | Behavior Technician | Decatur, IL | 2023 |
| Cheyenne Gregg, LCMHCS | 1467760785 | Mental Health Counselor | Concord, NC | 2010 |
| Clark Gregg, MD | 1073615571 | Infectious Disease Physician | Dallas, TX | 2006 |
| Claudia Gregg, OTR/L | 1942718689 | Occupational Therapist | Leander, TX | 2018 |
| Clausy Gregg, VA60015439 | 1093382483 | Pharmacy Technician | Woodinville, WA | 2021 |
| Clint Gregg, M.D. | 1952392078 | Ophthalmology Physician | Weatherford, TX | 2005 |
| Corey Gregg, M.D. | 1013379809 | Internal Medicine Physician | New Orleans, LA | 2016 |
| Courtney Gregg, OD | 1003337593 | Optometrist | Raleigh, NC | 2017 |
| Crystal Gregg | 1922787514 | Mental Health Counselor | Columbia, SC | 2023 |
| Cynthia Gregg, MD | 1740253731 | Plastic and Reconstructive Surgery Physician | Cary, NC | 2006 |
| Cynthia Gregg, REEG | 1760068084 | Electroneurodiagnostic Specialist/Technologist | Ft Worth, TX | 2021 |
| Dana Gregg | 1538617295 | Speech-Language Pathologist | Pittsburgh, PA | 2016 |
| Daniel Gregg, MS OTR/L | 1447656053 | Occupational Therapist | Des Moines, IA | 2014 |
| Daniel Gregg, LPN | 1548712763 | Licensed Practical Nurse | Columbus, OH | 2016 |
| Danielle Gregg, PA-C | 1841664000 | Physician Assistant | Altus, OK | 2015 |
| Darin Gregg | 1295542561 | Case Manager/Care Coordinator | Albuquerque, NM | 2024 |
| Darin Gregg | 1356908818 | Occupational Therapy Assistant | Cartersville, GA | 2019 |
| Darvaris Gregg | 1578105565 | Behavior Technician | Novi, MI | 2019 |
| David Gregg, MD | 1134178601 | Diagnostic Radiology Physician | Milwaukee, WI | 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).