Providers Sabrina Griswold, PHARM.D. to Michael Grizzaffi, D.M.D.
300 individual NPIs in the federal registry, part 8,367 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. 93 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Sabrina Griswold, PHARM.D. | 1821451063 | Pharmacist | East Hartford, CT | 2016 |
| Sabrina Griswold, LPCC | 1952221178 | Professional Counselor | Pasadena, CA | 2026 |
| Sally Griswold, LCSW | 1275639726 | Clinical Social Worker | Auburn, NY | 2006 |
| Samantha Griswold | 1013894427 | Personal Care Attendant | Bellevue, NE | 2025 |
| Sara Griswold | 1508644550 | Case Manager/Care Coordinator | Pedro, OH | 2023 |
| Sarah Griswold | 1780959353 | Social Worker | Portland, OR | 2012 |
| Savannah Griswold, BSN, RN | 1700451424 | Registered Nurse | Rochester, NY | 2021 |
| Selenaann Griswold, MSW, LCSW | 1255955266 | Clinical Social Worker | Wasilla, AK | 2020 |
| Shannon Griswold, PSY.D. | 1144538620 | Clinical Psychologist | San Pedro, CA | 2010 |
| Sharon Griswold, L.M.S.W. | 1154975753 | Clinical Social Worker | Grand Haven, MI | 2019 |
| Sharon Griswold, MD | 1417972415 | Emergency Medicine Physician | Philadelphia, PA | 2006 |
| Sharon Griswold, CRNA | 1780631739 | Certified Registered Nurse Anesthetist | Hanover, PA | 2006 |
| Sheila Griswold, DDS | 1366000812 | Dentist | Bethany, OK | 2019 |
| Sophia Griswold | 1942178942 | Psychiatric/Mental Health Nurse Practitioner | Middleburg, VA | 2025 |
| Sophie Griswold, MD | 1558537456 | Anesthesiology Physician | Lebanon, NH | 2008 |
| Sophie Griswold, RN | 1649056094 | Adult Health Nurse Practitioner | Portland, OR | 2023 |
| Stacie Griswold | 1235088816 | Dental Hygienist | Milwaukee, WI | 2026 |
| Stacy Griswold, P.T.A. | 1184970337 | Physical Therapy Assistant | West Terre Haute, IN | 2012 |
| Steffany Griswold | 1619403102 | Behavior Technician | Umatilla, FL | 2017 |
| Stephanie Griswold | 1285285387 | Attendant Care Provider | Temecula, CA | 2019 |
| Stephanie Griswold, PSYD | 1457614802 | Clinical Psychologist | Chicago, IL | 2012 |
| Stephen Griswold, DC | 1629189212 | Chiropractor | Monticello, GA | 2006 |
| Stephen Griswold, MD | 1972657005 | Internal Medicine Physician | Stevens Point, WI | 2007 |
| Steven Griswold, M.D. | 1831153873 | Geriatric Medicine (Family Medicine) Physician | Newport News, VA | 2006 |
| Stuart Griswold, D.D.S. | 1437187143 | General Practice Dentistry | Fayette, AL | 2006 |
| Susan Griswold, LBSW, QIDP | 1104286764 | Social Worker | Muskegon, MI | 2016 |
| Susan Griswold, APNP | 1548942295 | Psychiatric/Mental Health Nurse Practitioner | Winnebago, WI | 2023 |
| Susan Griswold | 1750593638 | Speech-Language Pathologist | Sunland Park, NM | 2007 |
| Suzan Griswold | 1780551531 | Adult Companion | Elkhorn, NE | 2025 |
| Suzanne Griswold, LPC | 1740675198 | Professional Counselor | Covington, GA | 2015 |
| Sybil Griswold, LCSW | 1619944451 | Clinical Social Worker | Jacksonville, FL | 2006 |
| Sydney Griswold, M.S. CCC-SLP | 1063832871 | Speech-Language Pathologist | Harrison, AR | 2014 |
| Tameka Griswold | 1346958030 | Personal Care Attendant | Las Vegas, NV | 2022 |
| Tami Griswold | 1275855272 | Physical Therapy Assistant | Lancaster, WI | 2010 |
| Tania Griswold, PSYCHOTHERAPIST | 1699983668 | Mental Health Counselor | Pepperell, MA | 2007 |
| Tara Griswold, LCSW | 1376736413 | Clinical Social Worker | Montclair, NJ | 2007 |
| Taylor Griswold | 1396464004 | Behavior Technician | Lakewood, CO | 2022 |
| Taylor Griswold | 1730005232 | Psychiatric/Mental Health Registered Nurse | New Caney, TX | 2026 |
| Tessla Griswold | 1184467573 | Personal Care Attendant | Elko, NV | 2024 |
| Timothy Griswold | 1073260410 | Mental Health Counselor | Covington, WA | 2022 |
| Timothy Griswold | 1164041257 | Registered Nurse | White River Junction, VT | 2020 |
| Todd Griswold, M.D. | 1457335598 | Psychiatry Physician | Somerville, MA | 2005 |
| Torey Griswold, D.C. | 1427352160 | Chiropractor | Ellensburg, WA | 2011 |
| Torrey Griswold | 1104215813 | Counselor | Allston, MA | 2015 |
| Tucker Griswold | 1316763071 | Behavior Technician | Albuquerque, NM | 2024 |
| Virginia Griswold, M.D. | 1396778304 | Specialist | San Francisco, CA | 2006 |
| Wendy Griswold, APRN | 1639406184 | Family Nurse Practitioner | Portland, CT | 2009 |
| William Griswold, MASSAGE THERAPIST | 1487102026 | Massage Therapist | Freeland, WA | 2016 |
| Xiaoling Griswold, CRNA | 1417250895 | Certified Registered Nurse Anesthetist | Mount Kisco, NY | 2010 |
| Lasonya Griswold Davis, APN | 1851703003 | Nurse Practitioner | Grady, AR | 2014 |
| Katherine Griswold Stanton | 1851694533 | Behavior Analyst | Las Vegas, NV | 2010 |
| Terri Griswold-Dodgson | 1740667104 | Professional Counselor | Joliet, IL | 2015 |
| Laurie Griswold-Krupski, PHD | 1104601939 | Mental Health Counselor | North Collins, NY | 2023 |
| Brandi Griswould | 1609112804 | Physical Therapy Assistant | Oak Grove, LA | 2012 |
| Victoria Grisyuk | 1588551485 | Foot & Ankle Surgery Podiatrist | Peoria, IL | 2025 |
| A'Kera Griszell, RBT | 1952828238 | Behavior Analyst | Valdosta, GA | 2017 |
| Jannique Griszell | 1275281537 | Behavior Technician | Valley Stream, NY | 2022 |
| Darlene Grit, RN | 1780874818 | Psychiatric/Mental Health Registered Nurse | North Wilkesboro, NC | 2007 |
| Jori Grit, NP | 1396388369 | Nurse Practitioner | Grand Rapids, MI | 2019 |
| Matthew Grit, APRN-NP | 1104534676 | Pediatric Nurse Practitioner | Grand Rapids, MI | 2022 |
| Olivia Grit, LMFT | 1457454795 | Marriage & Family Therapist | Boone, NC | 2006 |
| Alison Gritchen | 1114596855 | Case Manager/Care Coordinator | Albuquerque, NM | 2021 |
| Catherine Gritchen, MD | 1861482143 | Pediatrics Physician | Long Beach, CA | 2005 |
| Molly Gritchen | 1255734802 | Speech-Language Assistant | Riverside, CA | 2014 |
| Adrianne Griten, APRN-FNP | 1487949434 | Family Nurse Practitioner | Louisville, KY | 2011 |
| Allie Grither, MD | 1023498672 | Pediatric Emergency Medicine (Emergency Medicine) Physician | Saint Louis, MO | 2015 |
| Christine Grither, RN,BC, ANP | 1972855617 | Adult Health Nurse Practitioner | Saint Louis, MO | 2012 |
| Elle Grither, MSN, APRN, FNP-BC | 1730743881 | Family Nurse Practitioner | Bloomsdale, MO | 2019 |
| John Grither, PHARMD | 1932652914 | Pharmacist | Windsor, MO | 2016 |
| Robin Grither, LPC | 1962435131 | Professional Counselor | Conway, SC | 2006 |
| Whitney Grither, MD, PHD | 1699335323 | Obstetrics & Gynecology Physician | Saint Louis, MO | 2019 |
| Matthew Gritis, CRNA | 1356188114 | Certified Registered Nurse Anesthetist | San Antonio, TX | 2024 |
| Kawanna Gritney | 1235269184 | Marriage & Family Therapist | Inglewood, CA | 2007 |
| Kistyn Gritney, LCSW | 1093942179 | Clinical Social Worker | Los Angeles, CA | 2009 |
| Daniel Grits | 1508568544 | Student in an Organized Health Care Education/Training Program | Hershey, PA | 2023 |
| Yana Gritsaenko | 1528508298 | Pharmacist | Simi Valley, CA | 2017 |
| Aneta Gritsaev, O.D. | 1720494248 | Optometrist | Rockford, IL | 2014 |
| Ella Gritsak | 1831018258 | Recreation Therapist | Antelope, CA | 2026 |
| Alina Gritsan, DDS | 1467813626 | Dentist | Saint Peters, MO | 2016 |
| Regina Gritsavage, MD | 1003989450 | Anesthesiology Physician | Lebanon, NH | 2006 |
| Inna Gritsay | 1780046136 | Pharmacist | Indian Trail, NC | 2016 |
| David Gritsch, MD | 1235627373 | Neurology Physician | Boston, MA | 2018 |
| Hans Gritsch, MD | 1720006976 | Urology Physician | Los Angeles, CA | 2006 |
| Kendra Gritsch, MSW, LSWAIC | 1144948365 | Counselor | Seattle, WA | 2022 |
| Simon Gritsch, MD | 1184201196 | Student in an Organized Health Care Education/Training Program | Boston, MA | 2021 |
| Diana Gritsenko | 1043862121 | Critical Care Pharmacist | New Haven, CT | 2019 |
| Karina Gritsenko | 1982842787 | Anesthesiology Physician | Bronx, NY | 2009 |
| Lyubov Gritsenko, N.P. | 1932460151 | Adult Medicine Physician | New York, NY | 2012 |
| Nicholas Gritsik, PT | 1891129722 | Physical Therapist | Brooklyn, NY | 2013 |
| Anita Gritsiouk, BS | 1831701838 | Mental Health Counselor | Grants Pass, OR | 2020 |
| Oksana Gritsishin, NP | 1972379899 | Adult Health Nurse Practitioner | New York, NY | 2023 |
| Andrei Gritsiuta, MD | 1336778349 | Student in an Organized Health Care Education/Training Program | New Castle, PA | 2020 |
| Hailey Gritsiuta | 1306616271 | Physician Assistant | League City, TX | 2024 |
| Sergey Gritsiv, DMD | 1104893742 | Dentist | Oakwood, GA | 2006 |
| Svetlana Gritsko, LCSW | 1053424184 | Clinical Social Worker | Brooklyn, NY | 2006 |
| Andrey Gritsman, M.D. | 1134277601 | Anatomic Pathology & Clinical Pathology Physician | Ridgewood, NJ | 2007 |
| Kira Gritsman, MD | 1174598148 | Hematology & Oncology Physician | Boston, MA | 2006 |
| Liubov Gritsunov, LGSW | 1437950870 | Social Worker | Washington, DC | 2025 |
| Vadim Gritsus, M.D. | 1336170182 | Specialist | Pequannock, NJ | 2006 |
| Nataliya Gritsyuk | 1497450340 | Pharmacist | Antelope, CA | 2023 |
| Anna Gritsyuta | 1730437658 | Registered Nurse | Brooklyn, NY | 2012 |
| Anne Gritt, M.S., CCC-SLP | 1265794465 | Speech-Language Pathologist | West Lafayette, IN | 2012 |
| Joshua Gritt | 1205706744 | Behavior Technician | Bloomington, IN | 2025 |
| Ronald Gritt, MD | 1770698763 | Pediatrics Physician | Hartford, WI | 2006 |
| Marque Gritta, LMBT | 1326377722 | Massage Therapist | Asheville, NC | 2009 |
| Patricia Gritta, DC | 1942368659 | Chiropractor | Tallahassee, FL | 2006 |
| Remy Gritta, LCMHCA | 1215800636 | Mental Health Counselor | Wilkesboro, NC | 2025 |
| Sabina Gritta, M.A. | 1508940800 | Mental Health Counselor | New York, NY | 2006 |
| Agostino Grittani, M.D | 1295527349 | Internal Medicine Physician | Detroit, MI | 2025 |
| Marilena Grittani, RPH | 1164769279 | Pharmacist | Corpus Christi, TX | 2013 |
| Anndee Gritte | 1629557681 | Oncology Pharmacist | San Antonio, TX | 2018 |
| Dawn Gritten, LCSW | 1932596673 | Clinical Social Worker | Covington, IN | 2015 |
| Nkiru Gritten, LPN | 1780861195 | Licensed Practical Nurse | Bay Shore, NY | 2008 |
| Nyome Gritten | 1922657568 | Occupational Therapy Assistant | Sarasota, FL | 2019 |
| Rozalyna Gritten, DO | 1346942612 | Student in an Organized Health Care Education/Training Program | Oakland, CA | 2023 |
| Barbara Gritter, LMSW, ACSW | 1508881806 | Clinical Social Worker | Grand Rapids, MI | 2006 |
| Darrell Gritter, LMSW | 1790890648 | Social Worker | Grand Rapids, MI | 2006 |
| Debra Gritter, LMSW | 1053572636 | Clinical Social Worker | Zeeland, MI | 2008 |
| Joanna Gritter | 1063595197 | Registered Dietitian | Kalamazoo, MI | 2006 |
| Joseph Gritter, OTR/L | 1831660968 | Physical Rehabilitation Occupational Therapist | Wyoming, MI | 2018 |
| Joshua Gritter | 1811854284 | Mental Health Counselor | Vero Beach, FL | 2026 |
| Katie Gritter | 1558792671 | School Psychologist | Aiken, SC | 2013 |
| Lisa Gritter, MA, OTR | 1699485185 | Occupational Therapist | Holland, MI | 2022 |
| Nancy Gritter, MD | 1134171382 | Nephrology Physician | Charlotte, NC | 2006 |
| Sarah Gritter, M.D. | 1992967756 | Emergency Medicine Physician | Philadelphia, PA | 2008 |
| Dana Gritteres | 1346565447 | Mental Health Counselor | Schererville, IN | 2010 |
| Chanda Gritters, PA-C | 1851177240 | Physician Assistant | Iowa City, IA | 2023 |
| Curtis Gritters, RN | 1861223703 | Administrator Registered Nurse | Grand Rapids, MI | 2024 |
| Daniel Gritters, NP | 1205249414 | Family Nurse Practitioner | Grand Rapids, MI | 2014 |
| Jennifer Gritters, PHARM.D. | 1922375328 | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | Eugene, OR | 2011 |
| Jody Gritters, RN | 1932801016 | Registered Nurse | Des Moines, IA | 2023 |
| Lindzi Gritters | 1699600148 | Behavior Technician | Farmington Hills, MI | 2026 |
| Lyndon Gritters, MD | 1841287927 | Diagnostic Radiology Physician | Jamestown, NY | 2005 |
| Matthew Gritters, M.D. | 1396716411 | Emergency Medicine Physician | Pella, IA | 2006 |
| Noah Gritters, MD | 1902738164 | Internal Medicine Physician | Iowa City, IA | 2026 |
| Jason Gritti, M.D. | 1619260809 | Internal Medicine Physician | Sacramento, CA | 2011 |
| Layne Gritti, DO | 1710428925 | Psychiatry Physician | Mount Pleasant, SC | 2017 |
| Janet Grittini, SCHOOL PSYCHOLOGIST | 1164573127 | Psychologist | Artesia, NM | 2007 |
| Lisa Grittini | 1649007329 | Clinical Social Worker | San Tan Valley, AZ | 2024 |
| Marisa Grittini, AUD | 1033368550 | Audiologist | New York, NY | 2008 |
| Jennifer Grittman | 1821656521 | Hearing Instrument Specialist | Enid, OK | 2019 |
| Amanda Grittmann | 1659775187 | Mental Health Counselor | Des Moines, IA | 2014 |
| Dawn Grittmann, PHARMD | 1932561297 | Pharmacist | Clive, IA | 2016 |
| Robert Grittmann, DO | 1689707291 | Internal Medicine Physician | Waterloo, IA | 2007 |
| Jadilyn Grittner, DDS | 1124332440 | General Practice Dentistry | Cass Lake, MN | 2010 |
| Jessica Grittner, MS, CCC-SLP | 1215281951 | Speech-Language Pathologist | Minneapolis, MN | 2012 |
| John Grittner | 1164734976 | Dentist | St Paul, MN | 2010 |
| Lori Grittner | 1295004349 | Case Manager/Care Coordinator | Clarkston, WA | 2011 |
| Michelle Grittner, LPN | 1356169486 | Licensed Practical Nurse | Saint Cloud, MN | 2024 |
| Alexandria Gritton | 1083145056 | Student in an Organized Health Care Education/Training Program | Coralville, IA | 2017 |
| Andrea Gritton, CRNA | 1992110464 | Certified Registered Nurse Anesthetist | Orlando, FL | 2014 |
| Brian Gritton, RPH | 1881293686 | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | Frankfort, KY | 2020 |
| Crystal Gritton | 1730507633 | Rehabilitation Practitioner | Las Vegas, NV | 2014 |
| Kelly Gritton, RPH | 1790031599 | Pharmacist | Louisville, KY | 2012 |
| Liva Gritton, MD | 1528184033 | Physical Medicine & Rehabilitation Physician | Arcadia, CA | 2007 |
| Mark Gritton, LCPC | 1205080660 | Professional Counselor | Twin Falls, ID | 2008 |
| Mary Gritton | 1205960697 | Adult Companion | Columbus, OH | 2007 |
| Mary Gritton, PA | 1437755170 | Physician Assistant | Appleton, WI | 2020 |
| Michael Gritton, LPC | 1649088949 | Professional Counselor | Twin Falls, ID | 2024 |
| Raymond Gritton, MD | 1003934043 | Physical Medicine & Rehabilitation Physician | Arcadia, CA | 2007 |
| Taylor Gritton, PA-C | 1730712431 | Physician Assistant | Iowa City, IA | 2020 |
| Charity Gritts, ARNP | 1467919191 | Family Nurse Practitioner | Tahlequah, OK | 2019 |
| Sarah Gritts | 1407700719 | Occupational Therapy Assistant | Edmond, OK | 2026 |
| Tabitha Gritts | 1174410849 | Behavior Technician | St George, UT | 2025 |
| Barry Gritz, M.D. | 1487635892 | Psychiatry Physician | Houston, TX | 2005 |
| David Gritz, MD, MPH | 1770661571 | Ophthalmology Physician | Bronx, NY | 2006 |
| Ellen Gritz, PHD | 1629245873 | Clinical Psychologist | Houston, TX | 2008 |
| Emily Gritz, M.D. | 1376860692 | Neonatal-Perinatal Medicine Physician | New Haven, CT | 2010 |
| Janet Gritz, MA, CCC-SLP | 1639326416 | Speech-Language Pathologist | Silver Spring, MD | 2008 |
| Julie Gritz, PMHNP-BC | 1831843234 | Psychiatric/Mental Health Nurse Practitioner | Colorado Springs, CO | 2022 |
| Kari Gritz | 1033776737 | Professional Counselor | Glenwood, MN | 2019 |
| Melissa Gritz, LCSW | 1942952247 | Clinical Social Worker | Ocean Park, WA | 2022 |
| Michael Gritz, D.D,S, | 1407974652 | General Practice Dentistry | Long Beach, CA | 2007 |
| Rebecca Gritz, OTR/L | 1336028976 | Occupational Therapist | Staten Island, NY | 2025 |
| Richard Gritz, M.D. | 1548200637 | Diagnostic Radiology Physician | Tarzana, CA | 2006 |
| Scott Gritz, DDS | 1386856672 | Dentist | N Potomac, MD | 2007 |
| Susan Gritz, LCSW | 1578661732 | Clinical Social Worker | Davie, FL | 2006 |
| Trent Gritz, ATC, LAT | 1013462464 | Athletic Trainer | Hobbs, NM | 2016 |
| Melanie Gritz Bond, DMD | 1356311492 | Pediatric Dentistry | Sunrise, FL | 2006 |
| Nina Gritzalis, PSYD | 1194863951 | Clinical Psychologist | Orland Park, IL | 2007 |
| Jamie Gritzan | 1811248297 | Contractor | Seattle, WA | 2012 |
| George Gritzbach, LMHC | 1164649000 | Mental Health Counselor | Falmouth, MA | 2007 |
| Gary Gritzbaugh, DDS | 1619919222 | Dentist | Albuquerque, NM | 2006 |
| Erica Gritzen, BA, CACP | 1669823753 | Addiction (Substance Use Disorder) Counselor | Conway, SC | 2016 |
| Erin Gritzen | 1639544745 | Addiction (Substance Use Disorder) Counselor | Oceanside, CA | 2015 |
| Shannon Gritzenbach, MD | 1427180447 | Psychiatry Physician | Downers Grove, IL | 2007 |
| Carlie Gritzer, M.S. CCC-SLP | 1689472300 | Speech-Language Pathologist | Du Bois, PA | 2025 |
| Lauren Gritzer, DDS, MPH | 1194464578 | Student in an Organized Health Care Education/Training Program | Boston, MA | 2022 |
| Linda Gritzer, NP | 1922020890 | Family Nurse Practitioner | Beech Grove, IN | 2006 |
| Miriam Gritzewsky, B.A. | 1295865053 | Rehabilitation Practitioner | Pasadena, CA | 2007 |
| Amanda Gritzfeld | 1629544861 | Behavior Technician | Huntington Beach, CA | 2018 |
| Caroline Gritzinger, PT | 1629226253 | Orthopedic Physical Therapist | Winchester, VA | 2008 |
| Boris Gritzka, MD | 1124033287 | Pediatrics Physician | Austin, TX | 2006 |
| Thomas Gritzka, MD | 1639394075 | Specialist | Milwaukie, OR | 2007 |
| Matthew Gritzke, PTA | 1093297681 | Physical Therapy Assistant | Waycross, GA | 2018 |
| Candie Gritzmacher | 1003709825 | Behavior Technician | Jenks, OK | 2025 |
| Chelsie Gritzmacher, D.M.D. | 1558679175 | Pediatric Dentistry | Littleton, CO | 2010 |
| Elizabeth Gritzmacher, OTR/L | 1093439689 | Occupational Therapist | Portland, OR | 2022 |
| Elizabeth Gritzmacher | 1932878600 | Speech-Language Pathologist | Round Rock, TX | 2021 |
| Steven Gritzmacher, PH.D. | 1386725687 | Clinical Psychologist | Nixa, MO | 2006 |
| Heidi Gritzmaker | 1871219592 | Case Management Registered Nurse | Adrian, MI | 2022 |
| Krista Gritzmaker, MA, BCBA | 1861005100 | Behavior Analyst | Elkhart, IN | 2020 |
| Talia Gritzman | 1477330074 | Behavior Technician | Davie, FL | 2023 |
| Sarah Gritzner, DNAP, CRNA, APRN | 1346712684 | Certified Registered Nurse Anesthetist | Boise, ID | 2018 |
| Susan Gritzner, PSY.D. | 1255560983 | Clinical Psychologist | Portland, OR | 2009 |
| Michael Gritzuk, DDS | 1982981692 | General Practice Dentistry | Papillion, NE | 2011 |
| Chrysoula Griva | 1932020542 | Clinical Social Worker | Rochester, NY | 2026 |
| Mara Griva, LCSW | 1548296148 | Clinical Social Worker | Asheville, NC | 2006 |
| Spencer Grivanos, QMHS | 1962909234 | Case Manager/Care Coordinator | Toledo, OH | 2018 |
| Alexandros Grivas, M.D. | 1346989803 | Student in an Organized Health Care Education/Training Program | Philadelphia, PA | 2022 |
| Andrew Grivas, DDS | 1255408928 | General Practice Dentistry | Sacramento, CA | 2006 |
| Andrew Grivas | 1285658815 | Internal Medicine Physician | Jefferson City, MO | 2006 |
| Christine Grivas, R.D. | 1578843819 | Registered Dietitian | Teaneck, NJ | 2011 |
| Christopher Grivas, DC | 1184140501 | Chiropractor | Falls Church, VA | 2017 |
| Christopher Grivas, MD,MBA | 1790469385 | Internal Medicine Physician | Philadelphia, PA | 2023 |
| David Grivas | 1174119903 | Massage Therapist | Van Buren Twp, MI | 2020 |
| Gerome Grivas, NP | 1497883607 | Psychiatric/Mental Health Nurse Practitioner | Memphis, TN | 2007 |
| Jane Grivas, M.ED. DIP.ED.LBS | 1285176818 | Counselor | Media, PA | 2016 |
| Jenna Grivas, DPT | 1982201232 | Physical Therapist | Wheeling, IL | 2020 |
| Linda Grivas, ANP | 1487035184 | Registered Nurse | Levittown, NY | 2015 |
| Margaret Grivas, LMSW-CLINICAL | 1053253757 | Clinical Social Worker | Traverse City, MI | 2026 |
| Megan Grivas, LPC | 1427666189 | Mental Health Counselor | State College, PA | 2020 |
| Petros Grivas, M.D. | 1740443852 | Medical Oncology Physician | Seattle, WA | 2008 |
| Philip Grivas, DC | 1417973702 | Chiropractor | Red Bank, NJ | 2006 |
| Shannon Grivas, LCSW | 1225803695 | Clinical Social Worker | Fairfax, VA | 2023 |
| Tania Grivas, M.D. | 1760787444 | Surgery Physician | Rolling Hills Estates, CA | 2011 |
| Veronica Grivas, PHARMD | 1285937540 | Pharmacist | Astoria, NY | 2010 |
| Kristyn Grivej | 1740649854 | Physical Therapist | Keego Harbor, MI | 2016 |
| Paunel Grivej, MD | 1215986682 | Internal Medicine Physician | Waterford, MI | 2006 |
| Violeta Grivej, M.D. | 1699845644 | Internal Medicine Physician | Rochester Hills, MI | 2006 |
| Deanna Grivel | 1639520356 | Counselor | Olympia, WA | 2016 |
| Ami Griver, DPT | 1598897639 | Physical Therapist | Tucson, AZ | 2007 |
| Avner Griver, M.D. | 1558361790 | Interventional Pain Medicine Physician | Dunmore, PA | 2005 |
| David Griver, MD | 1720083405 | Anesthesiology Physician | Saint Paul, MN | 2005 |
| Kathryn Griver, RD,CDE | 1598771149 | Registered Dietitian | San Diego, CA | 2006 |
| Garrett Grivette, APRN-CNP | 1750262739 | Family Nurse Practitioner | Midwest City, OK | 2025 |
| Krista Grivette | 1770389215 | Behavior Technician | Wichita, KS | 2025 |
| Samantha Grivette | 1215575543 | Behavior Technician | Citrus Heights, CA | 2019 |
| Briel Grivetti | 1811595903 | Clinical Social Worker | Los Angeles, CA | 2020 |
| Damian Grivetti, MD | 1518970847 | Family Medicine Physician | Granville, IL | 2006 |
| Elizabeth Grivetti, CADC, APSS, CSA | 1093530909 | Addiction (Substance Use Disorder) Counselor | Georgetown, KY | 2024 |
| Janice Grivetti, D.O. | 1427201847 | Anatomic Pathology & Clinical Pathology Physician | Pittsfield, MA | 2008 |
| Jill Grivetti, RN | 1174795256 | Registered Nurse | Lafayette, CO | 2008 |
| Judith Grivetti, NP-C | 1336339142 | Family Nurse Practitioner | Waltham, MA | 2007 |
| Sara Grivetti | 1003454372 | Professional Counselor | East Lansing, MI | 2019 |
| Todd Grivetti, RN | 1477725521 | Administrator Registered Nurse | Aurora, CO | 2008 |
| Mallory Grivner, LCSW | 1013527357 | Clinical Social Worker | Blue Bell, PA | 2020 |
| Alexander Grivnovics, PTA | 1497227755 | Physical Therapy Assistant | Newtown Square, PA | 2018 |
| Janet Grivois, PTA | 1598207516 | Physical Therapy Assistant | Franconia, NH | 2016 |
| Marina Grivois | 1770257594 | Speech-Language Pathologist | Saint Augustine, FL | 2021 |
| Anastasia Grivoyannis, M.D. | 1295027837 | Anesthesiology Physician | Baltimore, MD | 2011 |
| Melissa Grivy, LPC, LAC | 1063981298 | Professional Counselor | Longmont, CO | 2018 |
| Muhammad Griwal | 1104467968 | Dental Hygienist | Lansing, MI | 2019 |
| Akshit Griwan, MD | 1629638671 | Internal Medicine Physician | Bristol, TN | 2019 |
| Kimmel Griwatsch, RN | 1457220766 | Adult Health Nurse Practitioner | Coldwater, MI | 2025 |
| Andrew Grix, DPT | 1942793799 | Orthopedic Physical Therapist | Bloomfield Hills, MI | 2018 |
| Arthur Grix, MD | 1942388616 | Clinical Genetics (M.D.) Physician | Roseville, CA | 2006 |
| Bethany Grix, PHD | 1588032569 | Clinical Psychologist | Battle Creek, MI | 2015 |
| Gary Grix | 1902912645 | Internal Medicine Physician | Farmington, MO | 2006 |
| Ina Grix | 1902364367 | Psychoanalyst | New York, NY | 2019 |
| Kristen Grix | 1205372398 | Behavior Technician | Ypsilanti, MI | 2017 |
| Maria Grix | 1972374858 | Occupational Therapy Assistant | Saint Peters, MO | 2024 |
| Maureen Grix, PH.D. | 1528275989 | Clinical Neuropsychologist | Garden City, NY | 2007 |
| Sara Grix, SLP | 1205094976 | Speech-Language Pathologist | Chesterfield, MI | 2008 |
| Sharon Grix, RNC, NP | 1104915263 | Critical Care Neonatal Nurse Practitioner | Detroit, MI | 2006 |
| Cani Grixby | 1154218832 | Personal Care Attendant | Omaha, NE | 2025 |
| Latecia Grixby | 1568269322 | Day Training/Habilitation Specialist | Omaha, NE | 2025 |
| Frankie Grixti | 1750768719 | Mental Health Counselor | Poughkeepsie, NY | 2015 |
| John Griz, M.D. | 1497186845 | Orthopaedic Surgery Physician | Clinton, SC | 2013 |
| Lu Griz | 1518000777 | Clinical Psychologist | Fernandina Beach, FL | 2007 |
| Carmen Griza, MD | 1861658460 | Family Medicine Physician | Des Plaines, IL | 2008 |
| Decebal Griza, MD | 1952567158 | Student in an Organized Health Care Education/Training Program | Glenview, IL | 2008 |
| Ruxandra Griza, MD | 1639973076 | Student in an Organized Health Care Education/Training Program | Park Ridge, IL | 2025 |
| Miranda Grizaffi, OTR/L | 1477398725 | Occupational Therapist | Chicago, IL | 2024 |
| Samantha Grizanti, LPN | 1093358335 | Licensed Practical Nurse | Lewiston, NY | 2019 |
| Kristi Grizard | 1467828418 | Clinical Social Worker | Ventura, CA | 2015 |
| Ivanna Grizelj | 1972489664 | Rehabilitation Practitioner | San Jose, CA | 2025 |
| Jennifer Grizenko, PHARMD | 1457769689 | Pharmacist | Vienna, VA | 2014 |
| Nathan Grizenko, OTD, OTR/L | 1720825599 | Occupational Therapist | Dublin, OH | 2024 |
| Bruce Grizer, RNFA | 1366449613 | Registered Nurse | La Jolla, CA | 2005 |
| Carolyne Grizer | 1427647155 | Clinical Social Worker | Wilson, NC | 2021 |
| Maria Grizhebovskaya | 1982361812 | Student in an Organized Health Care Education/Training Program | Atlanta, GA | 2021 |
| Mariya Grizhinku | 1154873511 | Case Manager/Care Coordinator | Vancouver, WA | 2016 |
| Mary Grizhuk, LMT | 1962916742 | Massage Therapist | Portland, OR | 2017 |
| Jessica Grizinski | 1184478513 | Case Manager/Care Coordinator | Niles, OH | 2024 |
| Richard Grizinski, PHD | 1962890020 | School Psychologist | Kinsman, OH | 2014 |
| Kathleen Grizky, LCADC, CCS | 1649997529 | Addiction (Substance Use Disorder) Counselor | Dorothy, NJ | 2022 |
| Laura Grizoffi, BA, IBCLC, CLC | 1982174181 | Lactation Consultant (Non-RN) | Rocklin, CA | 2018 |
| Shawna Grizoffi | 1700343415 | Marriage & Family Therapist | Sacramento, CA | 2019 |
| Gregory Grizont, OPTITION | 1093839557 | Optician | North Brunswick, NJ | 2007 |
| William Grizos, MD | 1811910854 | Radiation Oncology Physician | Philadelphia, PA | 2006 |
| Brad Grizzaffi, D.C. | 1346320561 | Chiropractor | Lafayette, LA | 2006 |
| Elizabeth Grizzaffi, PA-C | 1124311584 | Physician Assistant | Houston, TX | 2011 |
| Gregory Grizzaffi, NP | 1184188989 | Family Nurse Practitioner | Baton Rouge, LA | 2019 |
| Hailey Grizzaffi | 1578114682 | Behavior Technician | Austin, TX | 2019 |
| Jeffery Grizzaffi, D.P.M. | 1508000381 | Foot & Ankle Surgery Podiatrist | Lafayette, LA | 2009 |
| Joseph Grizzaffi, M.D. | 1013064732 | Child & Adolescent Psychiatry Physician | Baton Rouge, LA | 2007 |
| Kathryn Grizzaffi, COTA | 1427322619 | Occupational Therapy Assistant | Houston, TX | 2012 |
| Lauren Grizzaffi, PT | 1255530721 | Physical Therapist | Weymouth, MA | 2007 |
| Michael Grizzaffi, D.M.D. | 1528069069 | General Practice Dentistry | East Brunswick, NJ | 2005 |
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).