Providers Mary Grettenberger to Salih Grevious, M.D.
300 individual NPIs in the federal registry, part 8,312 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. 108 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Mary Grettenberger | 1013520550 | Clinical Social Worker | New Baltimore, MI | 2020 |
| Molly Grettenberger, MT-BC | 1942767207 | Music Therapist | Mt Prospect, IL | 2019 |
| Stephanie Grettenberger | 1003459488 | Behavior Technician | Salt Lake City, UT | 2019 |
| Abigail Gretter, APRN | 1972272029 | Primary Care Nurse Practitioner | Cleveland, OH | 2021 |
| Alexandra Gretter, LCSWA | 1538919170 | Clinical Social Worker | Raleigh, NC | 2024 |
| Brock Gretter, M.D. | 1033275862 | Anesthesiology Physician | Cleveland, OH | 2006 |
| Kacey Gretter, PT DPT | 1346177011 | Physical Therapist | Pelham, NH | 2026 |
| Leslie Gretter, M.A. | 1144452913 | Mental Health Counselor | San Diego, CA | 2009 |
| Monica Gretter, LCSW | 1134332661 | Clinical Social Worker | Madison, TN | 2007 |
| Audrey Grettie, LMHC, SUDP, CN, LMT | 1518344191 | Mental Health Counselor | Mountlake Terrace, WA | 2015 |
| Catherine Gretton, MA, CCC-SLP | 1518127406 | Speech-Language Pathologist | Oakland Gardens, NY | 2008 |
| James Gretton, PHARMD | 1033486949 | Pharmacist | La Plata, MD | 2011 |
| Kathy Gretton, FNP | 1811164593 | Family Nurse Practitioner | Avon, IN | 2008 |
| Carol Grettum, CP, CPED | 1730863937 | Prosthetist | Fargo, ND | 2023 |
| Carisa Gretz | 1407711120 | Behavior Technician | Stuart, FL | 2025 |
| Christopher Gretz, P.T. | 1336582428 | Physical Therapist | Fort Myers, FL | 2013 |
| Danielle Gretz, O.D. | 1568814242 | Optometrist | Durham, NC | 2016 |
| David Gretz, PHD | 1578315313 | Counseling Psychologist | Sheridan, WY | 2024 |
| Dawn Gretz, DPM | 1962585208 | Foot & Ankle Surgery Podiatrist | Glen Burnie, MD | 2006 |
| Helen Gretz | 1942364880 | Physical Therapist | Northbrook, IL | 2006 |
| Herbert Gretz, M.D. | 1376593301 | Gynecologic Oncology Physician | Purchase, NY | 2006 |
| Jeffrey Gretz, MD | 1306931209 | Gastroenterology Physician | Bradenton, FL | 2006 |
| Jeffrey Gretz, DO | 1558342691 | Internal Medicine Physician | Mc Murray, PA | 2005 |
| Jennifer Gretz | 1578716007 | Counselor | Rancho Cucamonga, CA | 2008 |
| Jordan Gretz, LADC | 1972199404 | Addiction (Substance Use Disorder) Counselor | Mankato, MN | 2020 |
| Lori Gretz | 1639428733 | Dental Hygienist | Sheboygan, WI | 2012 |
| Marisa Gretz, PSYD | 1255806105 | Clinical Psychologist | Coatesville, PA | 2018 |
| Molly Gretz | 1750934063 | Social Worker | Fond Du Lac, WI | 2019 |
| Robyn Gretz | 1174045645 | Professional Counselor | White Oak, PA | 2017 |
| Samuel Gretz, MD | 1134706088 | Internal Medicine Physician | Boston, MA | 2021 |
| Sean Gretz, OD | 1720565641 | Optometrist | Easton, MD | 2018 |
| Selinda Gretz, RN-CFNP | 1780770495 | Family Nurse Practitioner | Biloxi, MS | 2006 |
| Susan Gretz, MSOT | 1316492556 | Pediatric Occupational Therapist | West Chester, PA | 2016 |
| Thomas Gretz, DMD | 1235281445 | Dentist | Scottdale, PA | 2007 |
| Thomas Gretz, DDS | 1497807432 | Dentist | Scottdale, PA | 2007 |
| Zulai Gretz, DPT | 1003400086 | Physical Therapist | Fort Myers, FL | 2021 |
| Elissa Gretz Friedman, M.D. | 1366492126 | Gynecology Physician | New York, NY | 2006 |
| Laurel Gretz Pisciottano, D.C. | 1114991247 | Chiropractor | Canonsburg, PA | 2006 |
| Rhonda Gretz Ward, DPM | 1528144110 | Podiatrist | Scottdale, PA | 2006 |
| Kimberly Gretz-Zambruno, DDS | 1164574349 | Dentist | Scottdale, PA | 2007 |
| Jennifer Gretzema | 1356716476 | Counselor | Brighton, MI | 2015 |
| Matthew Gretzer, MD | 1033184700 | Urology Physician | Tucson, AZ | 2006 |
| Nancy Gretzer-Smith | 1356646269 | Counselor | Redmond, WA | 2011 |
| Anna Gretzinger, PA-C | 1114366465 | Medical Physician Assistant | Madison, WI | 2013 |
| Brenda Gretzinger, PHD | 1528881174 | School Psychologist | Westminster, MD | 2024 |
| Catherine Gretzinger, RN, BSN | 1619234259 | General Practice Registered Nurse | Rush, NY | 2012 |
| Dean Gretzinger, DDS | 1053818625 | Dentist | Tigard, OR | 2018 |
| Kelsey Gretzinger, PA-C | 1619445715 | Physician Assistant | Tualatin, OR | 2018 |
| Lorie Gretzinger | 1063834158 | Counselor | McMinnville, TN | 2014 |
| Meredith Gretzinger, DPT | 1871212092 | Physical Therapist | Littleton, CO | 2022 |
| Nicole Gretzinger, RN | 1447979372 | Registered Nurse | Shawano, WI | 2022 |
| Thomas Gretzinger, MD | 1518934413 | Dermatology Physician | Austin, TX | 2006 |
| William Gretzinger, DO | 1518994979 | Emergency Medical Services (Emergency Medicine) Physician | Petoskey, MI | 2006 |
| Dylan Gretzler, RBT | 1154077741 | Behavior Technician | Round Rock, TX | 2022 |
| Corrine Gretzmacher | 1265951230 | Behavior Technician | Kentwood, MI | 2017 |
| Erik Gretzmacher, CRNA | 1154051373 | Certified Registered Nurse Anesthetist | Washington, DC | 2022 |
| Megan Gretzmacher | 1184459588 | Physical Therapy Assistant | Arnold, MO | 2024 |
| Amber Gretzner, R.N. | 1013350305 | School Registered Nurse | Aiken, SC | 2013 |
| Joseph Gretzula, DO | 1952590218 | Dermatology Physician | Boynton Beach, FL | 2007 |
| Kristy Gretzula, DDS | 1093935736 | Dentist | Stratford, CT | 2007 |
| Becca Greub, PH.D | 1720477185 | Clinical Psychologist | Owen, WI | 2015 |
| Eston Greub | 1770282709 | Behavior Analyst | Antioch, CA | 2023 |
| Katherine Greub, APRN, FNP-C | 1407344468 | Nurse Practitioner | Kansas City, MO | 2018 |
| Mariana Greub | 1346004678 | Behavior Technician | Antioch, CA | 2024 |
| Andrea Greubel, SAC-IT | 1417732462 | Addiction (Substance Use Disorder) Counselor | Stevens Point, WI | 2023 |
| Cheryl Greubel, LCSW | 1982956835 | Clinical Social Worker | Philadelphia, PA | 2012 |
| Deborah Greubel, ARNP | 1316917776 | Nurse Practitioner | Tulsa, OK | 2006 |
| Jessica Greubel | 1225971732 | Behavior Technician | Livonia, MI | 2026 |
| Justin Greubel, PHARMD | 1023374121 | Pharmacotherapy Pharmacist | Henderson, KY | 2012 |
| Kelsey Greubel, ACNP | 1265064703 | Nurse Practitioner | Saint Louis, MO | 2020 |
| Sarah Greubel, RN | 1063197606 | Registered Nurse | Lakewood, WA | 2023 |
| Sherri Greubel, LCSW | 1588099063 | Clinical Social Worker | Carrollton, GA | 2013 |
| Austin Greuber, PHARMD, RPH | 1609586593 | Pharmacist | Van Buren Twp, MI | 2022 |
| Matthew Greuber | 1356637060 | Adult Companion | Port Huron, MI | 2011 |
| Amber Greuel, LPC | 1043949761 | Professional Counselor | Menasha, WI | 2022 |
| Christen Greuel, D.O. | 1740712348 | Family Medicine Physician | Claremore, OK | 2017 |
| Colby Greuel | 1457836728 | Pharmacist | Glenpool, OK | 2018 |
| Erin Greuel, RN | 1558151274 | Oncology Registered Nurse | San Diego, CA | 2025 |
| Isaac Greuel, OTR | 1265162960 | Occupational Therapist | Aurora, CO | 2022 |
| Jacob Greuel, MD | 1912183138 | Family Medicine Physician | Tulsa, OK | 2008 |
| Kiersten Greuel | 1801542113 | Case Manager/Care Coordinator | Tulsa, OK | 2022 |
| Leann Greuel, PA-C | 1699109157 | Medical Physician Assistant | Windsor, WI | 2013 |
| Lisa Greuel | 1528787462 | Registered Dietitian | Milwaukee, WI | 2022 |
| Olivia Greuel, RN | 1720898539 | Psychiatric/Mental Health Registered Nurse | New York, NY | 2025 |
| Parker Greuel | 1922711365 | Behavior Technician | Van Nuys, CA | 2022 |
| Sarah Greuel, RN | 1700389947 | Registered Nurse | Two Rivers, WI | 2018 |
| Sarah Greuel, NP | 1982897617 | Family Nurse Practitioner | Antigo, WI | 2007 |
| Derek Greul, CO60912368 | 1336603695 | Addiction (Substance Use Disorder) Counselor | Port Angeles, WA | 2019 |
| Aimie Greulach, NP | 1366013021 | Nurse Practitioner | Fort Wayne, IN | 2021 |
| Bridget Greulach | 1033125851 | Clinical Social Worker | Indianapolis, IN | 2006 |
| Mackenzie Greulach | 1588587604 | Speech-Language Pathologist | Durham, NC | 2026 |
| Bee Greulich | 1801422365 | Pharmacist | Maple Grove, MN | 2020 |
| Courtney Greulich | 1609227651 | Behavior Analyst | Berkley, MI | 2016 |
| Cristina Greulich, MD | 1144559378 | Hospitalist Physician | Royal Oak, MI | 2009 |
| Dana Greulich, M.D. | 1205193000 | Pediatrics Physician | Brookfield, WI | 2012 |
| Felicia Greulich, APN | 1619379641 | Family Nurse Practitioner | Pompton Lakes, NJ | 2014 |
| Heather Greulich, LPC, LCADC | 1043505605 | Professional Counselor | Caldwell, NJ | 2011 |
| Jason Greulich, CRNA | 1457743502 | Certified Registered Nurse Anesthetist | Johnson City, TN | 2015 |
| Jennifer Greulich, M.D. | 1457980104 | Obstetrics & Gynecology Physician | Jasper, IN | 2020 |
| Lauren Greulich, B. A. | 1952736787 | Physical Therapy Assistant | Columbia City, IN | 2013 |
| Mary Greulich, CNM | 1215961156 | Advanced Practice Midwife | Albuquerque, NM | 2006 |
| Matthew Greulich, M.D. | 1528358074 | Otolaryngology Physician | Milwaukee, WI | 2011 |
| Megan Greulich, LPC | 1710164603 | Professional Counselor | South Bend, IN | 2008 |
| Michelle Greulich, PHARMD | 1396165700 | Pharmacist | Sussex, NJ | 2014 |
| Jeanne Greulich-Rowland, DDS | 1588759963 | General Practice Dentistry | Milton, WI | 2006 |
| Herman Greulick, OD | 1811934961 | Optometrist | Corning, NY | 2006 |
| Joan Greulick, MD | 1831181858 | Pediatrics Physician | Dallas, PA | 2005 |
| Mary Greulick, MD | 1437244878 | Internal Medicine Physician | Honolulu, HI | 2006 |
| Jacquelin Greuling, PHD | 1689626335 | Clinical Psychologist | San Angelo, TX | 2006 |
| Kevin Greuloch, MD | 1285654616 | Ophthalmology Physician | Saint Louis, MO | 2006 |
| David Greuner, M.D. | 1063627347 | Surgery Physician | New York, NY | 2007 |
| Stephen Greuner, M.D. | 1740418607 | Surgery Physician | Charleston, SC | 2009 |
| Gary Greunke, DDS | 1548373673 | Dentist | Port Clinton, OH | 2006 |
| Jennifer Greunke, LCSW | 1194266098 | Clinical Social Worker | Gulf Breeze, FL | 2017 |
| Jordyne Greunke | 1366362725 | Family Nurse Practitioner | Waukesha, WI | 2026 |
| Julie Greunke | 1831018803 | Clinical Social Worker | Hastings, MN | 2026 |
| Kimberly Greunke | 1366710204 | Registered Nurse | Madison, WI | 2011 |
| Staci Greunke | 1629832480 | Personal Care Attendant | Wakefield, NE | 2024 |
| Stephanie Greunke, RD | 1831434240 | Registered Dietitian | San Diego, CA | 2012 |
| Tenisha Greunke, APRN, FNP-C | 1538821657 | Nurse Practitioner | Coeur D Alene, ID | 2021 |
| Jessica Greupner, M.D. | 1316387228 | Emergency Medicine Physician | Bloomington, MN | 2013 |
| Christian Greusard | 1952789836 | Licensed Vocational Nurse | Santa Ana, CA | 2015 |
| Kristian Greuter | 1447144571 | Adult Companion | Kearney, NE | 2025 |
| Aimee Greutman, APRN | 1841011509 | Acute Care Nurse Practitioner | Kettering, OH | 2024 |
| Anthony Greutman, LSW, LICDC | 1467616466 | Social Worker | Van Wert, OH | 2008 |
| Debra Greutman, COTA/L | 1275933699 | Occupational Therapist | Hamilton, OH | 2014 |
| Heather Greutman, COTA/L | 1386568855 | Occupational Therapy Assistant | Middletown, OH | 2026 |
| Ian Greutman | 1841182441 | Behavior Technician | Fort Wayne, IN | 2025 |
| Ava Grev | 1851285563 | Speech-Language Pathologist | Waconia, MN | 2025 |
| Jacquelyn Grev, MD | 1194088963 | Neonatal-Perinatal Medicine Physician | Sioux Falls, SD | 2012 |
| Olivia Grev, NP | 1871411280 | Family Nurse Practitioner | White Bear Lake, MN | 2026 |
| Sheri Grev Er-Skomski, SAC | 1306013081 | Addiction (Substance Use Disorder) Counselor | Elkhorn, WI | 2008 |
| Barbara Grevan Matson, PHARMD | 1093096737 | Pharmacist | Henderson, NV | 2011 |
| Callum Grevas | 1235010067 | Mental Health Counselor | Salina, KS | 2025 |
| Magdalene Grevas, CD(DONA) | 1356085898 | Doula | Stephens City, VA | 2022 |
| Alazae Greve | 1669362125 | Home Health Aide | Findlay, OH | 2025 |
| Barbara Greve, CNS | 1396152294 | Adult Health Clinical Nurse Specialist | Akron, OH | 2014 |
| Brittany Greve, APRN | 1275396236 | Family Nurse Practitioner | Lakeland, FL | 2024 |
| Carrie Greve | 1700698982 | Adult Companion | Lincoln, NE | 2025 |
| Cecelia Greve, LPC | 1831013614 | Professional Counselor | Olathe, KS | 2026 |
| Charlene Greve | 1982584819 | Chore Provider | Lincoln, NE | 2025 |
| Christine Greve | 1972026375 | Physical Therapist | Manahawkin, NJ | 2017 |
| Christopher Greve | 1770874216 | Anesthesiology Physician | Kalamazoo, MI | 2011 |
| Dallas Greve, NREMT-E | 1386040913 | Basic Emergency Medical Technician | Fort Rucker, AL | 2014 |
| Danielle Greve | 1225503576 | Counselor | Lansing, MI | 2018 |
| Danielle Greve, APNP | 1396253118 | Family Nurse Practitioner | Greenfield, WI | 2018 |
| Deborah Greve, RNC NURSE | 1821056714 | Psychiatric/Mental Health Registered Nurse | Clinton, IA | 2006 |
| Diana Greve, FNP-BC | 1508022534 | Family Nurse Practitioner | Naples, FL | 2008 |
| Dominique Greve, P.T. | 1700167764 | Physical Therapist | Buffalo Grove, IL | 2011 |
| Donald Greve, D.C. | 1467489294 | Chiropractor | Madisonville, KY | 2006 |
| Elizabeth Greve | 1174154462 | Behavior Technician | Kalamazoo, MI | 2020 |
| Erica Greve | 1457886343 | Case Manager/Care Coordinator | Basehor, KS | 2017 |
| Erica Greve | 1699970996 | Student in an Organized Health Care Education/Training Program | Berkeley, CA | 2007 |
| Gary Greve, DC ACRB III | 1255341574 | Chiropractor | Ephrata, PA | 2006 |
| Heidi Greve, LPN | 1740557131 | Licensed Practical Nurse | Syracuse, NY | 2011 |
| Hendrik Greve, MD, PHD | 1508626086 | Student in an Organized Health Care Education/Training Program | Boston, MA | 2024 |
| Hope Greve | 1215729900 | Podiatrist | Chesterfield, MI | 2025 |
| Jacita Greve | 1972053098 | Family Nurse Practitioner | Southfield, MI | 2016 |
| Jackie Greve, NP | 1902370703 | Nurse Practitioner | Sterling, IL | 2019 |
| James Greve, MD | 1316920275 | Diagnostic Radiology Physician | Miami, FL | 2005 |
| Jason Greve, MA, LPC | 1578129680 | Professional Counselor | Midland, MI | 2019 |
| Jessica Greve, PT, DPT | 1497001150 | Physical Therapist | Chicago, IL | 2012 |
| Karen Greve, CRNA | 1427018431 | Certified Registered Nurse Anesthetist | Kettering, OH | 2006 |
| Katherynne Greve, DO | 1376171637 | Pediatrics Physician | Indianapolis, IN | 2020 |
| Kelly Greve, MPT | 1972731438 | Physical Therapist | Locust Valley, NY | 2009 |
| Kenyon Greve, OTD, OTR/L, CEAC | 1366317463 | Occupational Therapist | Cincinnati, OH | 2025 |
| Kevin Greve, PH.D. | 1205961430 | Clinical Neuropsychologist | Metairie, LA | 2007 |
| Kevin Greve, P.T. | 1932331766 | Physical Therapist | Greenfield, WI | 2009 |
| Kristine Greve | 1629290671 | Occupational Therapist | Fond Du Lac, WI | 2007 |
| Kyle Greve | 1386327039 | Physical Therapist | Wayne, NJ | 2023 |
| Lacey Greve, MD | 1396486171 | Hospitalist Physician | Kansas City, KS | 2022 |
| Laura Greve, PSYD | 1477610871 | Clinical Psychologist | Boston, MA | 2007 |
| Lauren Greve, PH.D. | 1295914257 | Counseling Psychologist | Warwick, RI | 2007 |
| Lisa Greve, OT | 1346611209 | Pediatric Occupational Therapist | Arlington, TX | 2015 |
| Marjorie Greve | 1851796122 | Physical Therapy Assistant | Van Wert, OH | 2014 |
| Mark Greve, MD | 1538144555 | Anesthesiology Physician | Birmingham, AL | 2005 |
| Mark Greve, MD | 1710908611 | Emergency Medicine Physician | Brockton, MA | 2006 |
| Mary Greve, PA C | 1477547768 | Physician Assistant | Iowa City, IA | 2005 |
| Matthew Greve, MD | 1720426794 | Child & Adolescent Psychiatry Physician | Bethesda, MD | 2013 |
| Megan Greve, DNP | 1275985848 | Adult Health Nurse Practitioner | Iowa City, IA | 2016 |
| Megan Greve, CNP | 1295188233 | Family Nurse Practitioner | Sidney, OH | 2016 |
| Megan Greve | 1467111526 | Social Worker | Celina, OH | 2021 |
| Mikayla Greve, PT | 1669196465 | Physical Therapist | Ripon, WI | 2022 |
| Morgan Greve, DDS | 1659948628 | Dentist | Lakewood, CO | 2021 |
| Noah Greve | 1962073247 | Physical Therapist | Waukesha, WI | 2021 |
| Robert Greve, MD | 1629066428 | Obstetrics & Gynecology Physician | Mansfield, TX | 2005 |
| Robert Greve, D.C. | 1851458194 | Chiropractor | Redding, CA | 2007 |
| Ross Greve | 1437541307 | Professional Counselor | Durham, NC | 2015 |
| Ryan Greve, PT, DPT, CMTPT, CCI | 1407175391 | Physical Therapist | Oak Creek, WI | 2010 |
| Shelby Greve | 1881571206 | Personal Care Attendant | Fremont, NE | 2025 |
| Sky Greve | 1467347377 | Adult Companion | Fremont, NE | 2025 |
| Sonya Greve | 1740166727 | Personal Care Attendant | Greenbelt, MD | 2025 |
| Steven Greve | 1174342778 | Massage Therapist | Eagle, CO | 2024 |
| Theodore Greve, DC | 1215856430 | Chiropractor | Charlotte, NC | 2026 |
| Tiffany Greve, MA, LPC | 1689979767 | Professional Counselor | Colorado Springs, CO | 2011 |
| Timothy Greve, A.T.C., P.E.S. | 1336425545 | Athletic Trainer | Saint Paul, MN | 2011 |
| Valerie Greve | 1699352518 | Family Medicine Physician | St Petersburg, FL | 2021 |
| Veronica Greve, CGC | 1689247496 | Genetic Counselor (M.S.) | Ann Arbor, MI | 2021 |
| Victoria Greve, CPNP-PC CPN BSN RN | 1326811605 | Pediatric Nurse Practitioner | Easton, PA | 2023 |
| Abigail Grevel, PHARMD | 1104740562 | Pharmacist | Muskegon, MI | 2026 |
| Emonique Grevel | 1528837655 | Social Worker | Fayetteville, NC | 2023 |
| Elizabeth Grevelding | 1851097141 | Behavior Technician | Raleigh, NC | 2023 |
| Erika Grevelding, LCSW | 1912024571 | School Social Worker | Ballston Spa, NY | 2007 |
| Katherine Grevelding, DPT, LAT, ATC | 1760540231 | Athletic Trainer | Milford, CT | 2006 |
| Makenzie Grevelding, DPT | 1558907675 | Physical Medicine & Rehabilitation Physician | Wheat Ridge, CO | 2019 |
| Tabitha Grevelding | 1205515855 | Behavior Technician | Monrovia, CA | 2023 |
| Joannes Grevelink, MD PHD | 1538150982 | Dermatology Physician | Boston, MA | 2005 |
| Natalie Grevelink, PA-C | 1407060908 | Physician Assistant | Park City, UT | 2007 |
| Kassidy Grevemberg, OTA | 1245710375 | Occupational Therapy Assistant | Baytown, TX | 2018 |
| Sally Grevemberg, BCBA | 1124360326 | Behavior Analyst | Salida, CA | 2013 |
| Kelly Grevemeyer, RN | 1396392221 | Registered Nurse | Fort Gratiot, MI | 2019 |
| Alexander Greven | 1467938456 | Student in an Organized Health Care Education/Training Program | Atlanta, GA | 2018 |
| Allison Greven, LCSW | 1669126934 | Clinical Social Worker | Chicago, IL | 2022 |
| Caralie Greven, LMHC | 1972977585 | Mental Health Counselor | Dupont, WA | 2015 |
| Craig Greven, MD | 1154304863 | Ophthalmology Physician | Winston Salem, NC | 2005 |
| Damon Greven, NP-C | 1245428366 | Nurse Practitioner | Garrett, IN | 2007 |
| Kathryn Greven, MD | 1972585339 | Radiation Oncology Physician | Winston Salem, NC | 2005 |
| Lesley Greven, REGISTERED NURSE | 1447064324 | Registered Nurse | Phoenix, AZ | 2025 |
| Margaret Greven, M.D. | 1821380874 | Ophthalmology Physician | Winston Salem, NC | 2011 |
| Shana Greven, D.O | 1568727600 | Neuromusculoskeletal Medicine & OMM Physician | Lynchburg, VA | 2012 |
| Tiffany Greven, RBT | 1487466207 | Behavior Technician | Madison Heights, MI | 2025 |
| Sarah Greven-Chaousis, PA | 1891975827 | Surgery Physician | South Portland, ME | 2007 |
| Aishia Grevenberg, LCSW | 1851535520 | Clinical Social Worker | Las Vegas, NV | 2009 |
| Renee Grevenberg, LCSW | 1336499714 | Clinical Social Worker | Brentwood, CA | 2012 |
| Barbara Grevengoed, LCPC | 1033252176 | Professional Counselor | Oak Forest, IL | 2007 |
| Carissa Grevengoed, M.S., CCC-SLP | 1073104055 | Speech-Language Pathologist | Peabody, MA | 2021 |
| Elizabeth Grevengoed, PA-C | 1669605960 | Physician Assistant | Golden, CO | 2009 |
| Jaclyn Grevengoed, PT | 1144650482 | Physical Therapist | Omaha, NE | 2013 |
| Justin Grevengoed | 1174391288 | Physical Therapist | Sioux City, IA | 2023 |
| Katrina Grevengoed, DPT | 1457131518 | Physical Therapist | Le Mars, IA | 2023 |
| Mackelle Grevengoed | 1518793280 | Social Worker | Sioux Falls, SD | 2024 |
| Michael Grevengoed, CNP | 1356837579 | Family Nurse Practitioner | Sheldon, IA | 2018 |
| Mikayla Grevengoed, PA | 1215568175 | Physician Assistant | Omaha, NE | 2020 |
| Richard Grevengoed, L.C.P.C. | 1386770238 | Professional Counselor | South Holland, IL | 2007 |
| Chris Grevengood, M.D | 1225087273 | Obstetrics & Gynecology Physician | Bonita Springs, FL | 2006 |
| Evangelia Grevenitis | 1619375854 | Occupational Therapist | Pelham, AL | 2014 |
| Panayiotis Grevenitis, M.D. | 1073834792 | Gastroenterology Physician | Mobile, AL | 2010 |
| Sonia Grevenitis, M.D. | 1720305030 | Pediatrics Physician | Irvington, AL | 2010 |
| James Grevenitz, DPT | 1235857137 | Physical Therapist | Big Sky, MT | 2022 |
| Jill Grevenow, NP | 1124337043 | Pediatric Nurse Practitioner | Milwaukee, WI | 2010 |
| Jessica Grevenstuk | 1205411410 | Behavior Technician | Grand Rapids, MI | 2021 |
| Jessica Grevenstuk, NP | 1588098685 | Gerontology Nurse Practitioner | Dearborn, MI | 2013 |
| Jillian Grevenstuk | 1710646211 | Critical Care Medicine Nurse Practitioner | Round Rock, TX | 2021 |
| Russell Grevenstuk | 1821754201 | Mental Health Counselor | Junction City, OR | 2021 |
| Alecia Grever, LCPC | 1063519510 | Marriage & Family Therapist | Antioch, IL | 2006 |
| David Grever, LPTA | 1013268994 | Physical Therapist | Loveland, CO | 2012 |
| Elise Grever, PA-C | 1578327185 | Physician Assistant | New York, NY | 2024 |
| Gail Grever, MD | 1669517298 | Internal Medicine Physician | Lewis Center, OH | 2007 |
| Jennifer Grever | 1154573285 | Addiction (Substance Use Disorder) Counselor | Clackamas, OR | 2008 |
| Karl Grever, MS CCC-A | 1649351107 | Audiologist-Hearing Aid Fitter | Casselberry, FL | 2006 |
| Mark Grever, DO | 1467453258 | Emergency Medicine Physician | Edgewood, KY | 2005 |
| Michael Grever, MD | 1215942735 | Hematology (Internal Medicine) Physician | Columbus, OH | 2006 |
| Morgan Grever | 1174352082 | Student in an Organized Health Care Education/Training Program | Cincinnati, OH | 2024 |
| Pamela Grever | 1750778163 | Occupational Therapy Assistant | Loveland, CO | 2015 |
| Timothy Grever | 1487432134 | Marriage & Family Therapist | Modesto, CA | 2023 |
| Karl Grever-Hoover | 1598314890 | Home Health Aide | Hamilton, MT | 2019 |
| Ashley Grevera, MS, OTR/L, RYT | 1932676285 | Occupational Therapist | Hunlock Creek, PA | 2018 |
| Dara Grevera, RPH BCMTMS | 1609470749 | Pharmacist | Wilkes Barre, PA | 2020 |
| Gregory Grevera | 1821282732 | Family Nurse Practitioner | Minneapolis, MN | 2007 |
| Katharine Grevera | 1114375441 | Occupational Therapist | Lakeway, TX | 2016 |
| Alexis Grevers | 1205457215 | Mental Health Counselor | New York, NY | 2020 |
| Sara Grevers, NP | 1780183699 | Nurse Practitioner | Grand Rapids, MI | 2018 |
| Valerie Grevers, DC | 1366787731 | Chiropractor | Fayetteville, AR | 2012 |
| Amber Greves, M.S. CCC-SLP | 1750620365 | Speech-Language Pathologist | Boulder, CO | 2013 |
| Christine Greves, M.D. | 1467406272 | Obstetrics & Gynecology Physician | Orlando, FL | 2006 |
| Cole Greves, M.D. | 1205055027 | Maternal & Fetal Medicine Physician | Orlando, FL | 2007 |
| Deborah Greves, LPCC-S | 1487873261 | Marriage & Family Therapist | Mansfield, OH | 2007 |
| Douglas Greves, MD | 1265431076 | Family Medicine Physician | Devils Lake, ND | 2005 |
| Emma Greves, RBT | 1467040287 | Behavior Technician | Lafayette, IN | 2021 |
| John Greves, MD | 1164461950 | Cardiovascular Disease Physician | Vancouver, WA | 2006 |
| Jessica Grevesen, CRNA | 1780131243 | Certified Registered Nurse Anesthetist | New Brunswick, NJ | 2016 |
| Jeremy Grevet | 1346876281 | Student in an Organized Health Care Education/Training Program | Boston, MA | 2020 |
| Elizabeth Grevey, PSYD, BCBA | 1154652444 | Clinical Psychologist | Graham, WA | 2010 |
| Scott Grevey, M.D. | 1699713107 | Dermatology Physician | Fairfield, OH | 2006 |
| Michele Grevich | 1184126476 | Personal Care Attendant | Henderson, NV | 2018 |
| Sriharsha Grevich, M.D. | 1104111939 | Pediatric Rheumatology Physician | Seattle, WA | 2011 |
| Elizabeth Greville, LCSW | 1881934065 | Clinical Social Worker | Kane, PA | 2013 |
| Camryn Greving, PA | 1811817588 | Student in an Organized Health Care Education/Training Program | Prairie View, KS | 2026 |
| Catherine Greving, M.A. | 1396918892 | Mental Health Counselor | Decorah, IA | 2008 |
| Chad Greving, D.D.S | 1265590806 | General Practice Dentistry | Elkhorn, WI | 2006 |
| Emily Greving | 1972375764 | Behavior Technician | Waukee, IA | 2023 |
| Evelyn Greving | 1538014824 | Behavior Technician | Morehead City, NC | 2026 |
| Hannah Greving | 1225918667 | Physical Therapist | Delafield, WI | 2025 |
| John Greving, DO | 1043388036 | Internal Medicine Physician | Hannibal, MO | 2006 |
| Karissa Greving, PH.D. | 1770757585 | Marriage & Family Therapist | Tempe, AZ | 2008 |
| Maggie Greving, LISW | 1043581135 | Clinical Social Worker | Spencer, IA | 2012 |
| Mason Greving, PA-C | 1619703378 | Medical Physician Assistant | New York, NY | 2024 |
| Rebecca Greving, DDS | 1750484127 | Dentist | Janesville, WI | 2006 |
| Stephanie Greving, DPT | 1972081487 | Physical Therapist | Spokane, WA | 2018 |
| Torishia Greving, RN, MSN, FNP-C | 1124492491 | Family Nurse Practitioner | Hannibal, MO | 2015 |
| Ann Greving Brown, LCSW | 1407939168 | Clinical Social Worker | Chapman, NE | 2006 |
| Belva Grevious | 1124817762 | Behavior Technician | Farmington Hills, MI | 2025 |
| Chioko Grevious, LMFT | 1215683677 | Marriage & Family Therapist | Sacramento, CA | 2022 |
| Dornetta Grevious | 1992434096 | Home Health Aide | Cincinnati, OH | 2022 |
| Edith Grevious, MASTERS PUBLIC HLTH | 1134699325 | Student in an Organized Health Care Education/Training Program | Martinsville, VA | 2018 |
| Janine Grevious | 1548005465 | Behavior Technician | Schenectady, NY | 2024 |
| Kayla Grevious, RBT | 1023830965 | Behavior Technician | Oviedo, FL | 2024 |
| Kyle Grevious | 1215430830 | Mental Health Counselor | Baton Rouge, LA | 2018 |
| Mark Grevious, M.D. | 1194727909 | Plastic Surgery Physician | Munster, IN | 2005 |
| Salih Grevious, M.D. | 1740674944 | Cardiovascular Disease Physician | Wyomissing, PA | 2015 |
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).