Providers William Grupp, DDS to Baron Grutter, DDS
300 individual NPIs in the federal registry, part 8,413 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. 103 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| William Grupp, DDS | 1134142805 | General Practice Dentistry | Charlottesville, VA | 2006 |
| Jacqueline Grupp-Phelan, M.D. | 1619904109 | Pediatric Emergency Medicine (Pediatrics) Physician | San Francisco, CA | 2006 |
| Leah Grupp-Williams | 1366985434 | Mental Health Counselor | Lynnwood, WA | 2016 |
| Megan Gruppe, RPH | 1629390141 | Pharmacist | North Syracuse, NY | 2010 |
| Alanna Gruppen | 1225789365 | Case Manager/Care Coordinator | Holland, MI | 2022 |
| Maria Gruppen, PSY.D. | 1265860258 | Clinical Psychologist | Grand Rapids, MI | 2013 |
| Timothy Gruppen, PSYD | 1689912081 | Clinical Psychologist | Grand Rapids, MI | 2013 |
| Tonia Gruppen, A.T.C. | 1689703399 | Athletic Trainer | Holland, MI | 2007 |
| Avishay Grupper, MD | 1326470923 | Student in an Organized Health Care Education/Training Program | Rochester, MN | 2013 |
| Lina Grupper | 1093082224 | Case Manager/Care Coordinator | Pacoima, CA | 2011 |
| Naava Grupper | 1306385851 | Social Worker | Brooklyn, NY | 2017 |
| Rachel Gruppin | 1326919457 | Speech-Language Pathologist | Woodland Hills, CA | 2025 |
| Yuliya Gruppina, DC | 1437579356 | Chiropractor | North Hollywood, CA | 2014 |
| Jenna Gruppo | 1144731563 | Speech-Language Pathologist | Reno, NV | 2017 |
| Katherine Gruppo, PA-C | 1841822657 | Surgical Physician Assistant | New York, NY | 2020 |
| Leonard Gruppo, PA-C | 1831189372 | Physician Assistant | Rockwall, TX | 2005 |
| Meghan Gruppo | 1740836105 | Behavior Technician | Laguna Hills, CA | 2019 |
| Ralph Gruppo, M.D. | 1851321186 | Pediatric Hematology & Oncology Physician | Cincinnati, OH | 2006 |
| Julia Gruppuso, DMD | 1427732163 | General Practice Dentistry | Bradenton, FL | 2023 |
| Philip Gruppuso, MD | 1962440131 | Pediatric Endocrinology Physician | Providence, RI | 2006 |
| Rhiannon Gruppuso, LCSWC | 1689286791 | Clinical Social Worker | Arnold, MD | 2020 |
| Sofia Gruppuso | 1417726746 | Speech-Language Pathologist | Katonah, NY | 2023 |
| Vincenza Gruppuso | 1285413757 | Licensed Practical Nurse | Selden, NY | 2023 |
| Allisonn Grupski, PHD | 1043591019 | Clinical Psychologist | Maywood, IL | 2011 |
| Julie Grupy, LCSW | 1881552917 | Clinical Social Worker | Covington, KY | 2026 |
| Ann Marie Grus, PTA | 1336684364 | Physical Therapy Assistant | Fort Carson, CO | 2016 |
| Brian Grus, MD | 1053421065 | Internal Medicine Physician | O Fallon, MO | 2006 |
| Victoria Grusauskas | 1013838374 | Oncology Pharmacist | Jacksonville, FL | 2026 |
| Aleia Gruschke | 1578235982 | Technician/Technologist | Owosso, MI | 2021 |
| Jennifer Gruschke, M.A. CCC-A | 1457470080 | Audiologist-Hearing Aid Fitter | Alpena, MI | 2007 |
| Brandon Gruschow, PHARM D. | 1952907974 | Pharmacist | Harrisburg, PA | 2020 |
| Brooke Gruschow | 1013692813 | Behavior Technician | Raleigh, NC | 2023 |
| Cori Gruschow | 1508503715 | Behavior Technician | Pensacola, FL | 2022 |
| Jacey Gruschow | 1881575744 | Speech-Language Pathologist | Rochester, NY | 2025 |
| Janet Gruschow | 1932483609 | Pharmacist | Harrisburg, PA | 2011 |
| Jordan Gruschow | 1659155307 | Clinical Social Worker | Ridgewood, NJ | 2023 |
| Kimberly Gruschow, MSN, AGACNP-BC | 1215716865 | Acute Care Nurse Practitioner | Miramar, FL | 2023 |
| Lesley Gruschow | 1689060154 | Registered Nurse | Churchville, NY | 2015 |
| Patricia Gruschow | 1467315218 | Registered Nurse | Bellevue, WA | 2025 |
| Olga Gruscinska, M.D. | 1457580052 | Internal Medicine Physician | New York, NY | 2009 |
| Brandon Grusd, M.D., J.D. | 1730348970 | Vascular & Interventional Radiology Physician | La Jolla, CA | 2008 |
| Helen Grusd, PH.D | 1407074412 | Cognitive & Behavioral Psychologist | Sherman Oaks, CA | 2007 |
| Ronald Grusd, M.D. DABR | 1164511960 | Body Imaging Physician | Beverly Hills, CA | 2006 |
| Che'Cail Gruse | 1083561450 | Speech-Language Pathologist | Minneapolis, MN | 2026 |
| Emilee Gruse, PAC, ATC, LAT | 1134534282 | Physician Assistant | Mankato, MN | 2014 |
| Haley Gruse | 1619836905 | Student in an Organized Health Care Education/Training Program | Reno, NV | 2026 |
| Jeffrey Gruse, RN | 1427249515 | Registered Nurse | Green Bay, WI | 2007 |
| Laura Gruse | 1447567425 | Licensed Practical Nurse | Tacoma, WA | 2010 |
| Matthew Gruse, MS, ACSM CEP | 1235949009 | Clinical Exercise Physiologist | Detroit, MI | 2025 |
| Michael Gruse, DPM | 1942610605 | Student in an Organized Health Care Education/Training Program | Cleveland, OH | 2014 |
| Jamie Grusecki, AU.D. | 1497076111 | Audiologist-Hearing Aid Fitter | Surprise, AZ | 2010 |
| Joshua Grusecki | 1750957593 | Specialist | Kalamazoo, MI | 2021 |
| Katelyn Grusecki, PSY. D. | 1831776079 | Psychologist | Madison, WI | 2021 |
| Kelly Grusecki | 1093320780 | Behavior Technician | La Grange Park, IL | 2020 |
| Sarah Grusemeyer, MSPT | 1295993467 | Physical Therapist | Basking Ridge, NJ | 2008 |
| Peggy Grusendorf, APRN | 1528296928 | Family Nurse Practitioner | Provo, UT | 2009 |
| Dennis Grusenmeyer, MD | 1871568113 | Hospitalist Physician | Keene, NH | 2006 |
| Lauren Grusenmeyer, AU.D. | 1699344192 | Audiologist | Orange, CA | 2021 |
| Michael Grusenmeyer, M.D. | 1407826910 | Family Medicine Physician | Westlake, OH | 2006 |
| Marc Grusensky, MD | 1578620225 | Psychiatry Physician | Commack, NY | 2007 |
| Anariza Grush | 1013306166 | Nurse Practitioner | Farmington, NM | 2015 |
| Andrew Grush, MD | 1700589017 | Student in an Organized Health Care Education/Training Program | Birmingham, AL | 2023 |
| Artem Grush, M.D. | 1407837420 | Anesthesiology Physician | Boston, MA | 2005 |
| Howard Grush, LCSW | 1033156302 | Clinical Social Worker | Jackson, NJ | 2006 |
| Jason Grush, PTA | 1073818530 | Physical Therapy Assistant | University Park, FL | 2011 |
| Jessica Grush, LMSW | 1992544910 | Clinical Social Worker | Milford, MI | 2024 |
| Jordan Grush, DO | 1801384615 | Emergency Medicine Physician | Las Vegas, NV | 2018 |
| Kenneth Grush, MD | 1215986773 | Anesthesiology Physician | Brooklyn, NY | 2006 |
| Kira Grush, MD | 1609455997 | Hospitalist Physician | Denver, CO | 2021 |
| Kristine Grush, LMFT | 1255580387 | Marriage & Family Therapist | Beverly Hills, CA | 2008 |
| Leslie Grush | 1265817894 | Audiologist | Portland, OR | 2015 |
| Linda Grush, LCPC | 1427632306 | Professional Counselor | Homer Glen, IL | 2021 |
| Lynn Grush, MD | 1245205053 | Child & Adolescent Psychiatry Physician | Newton Center, MA | 2006 |
| Michelle Grush | 1639773765 | Pharmacist | Logan, OH | 2020 |
| Owen Grush, M.D. | 1457375149 | Specialist | Charleston, SC | 2006 |
| Sharon Grush, FNP-C | 1962846220 | Family Nurse Practitioner | Montgomery, TX | 2013 |
| Valerie Grush, OTR/L | 1982834909 | Pediatric Occupational Therapist | Stafford, TX | 2009 |
| Ira Grushack, D.C. | 1407896897 | Sports Physician Chiropractor | Long Beach, NY | 2006 |
| Diana Grushan, RN | 1366858136 | Ambulatory Women's Health Care Registered Nurse | Boulder, CO | 2014 |
| Marc Grushan, M.D. | 1316032071 | Family Medicine Physician | Lafayette, CO | 2006 |
| Rachel Grushan, MD | 1326842170 | Student in an Organized Health Care Education/Training Program | Dallas, TX | 2025 |
| Solomiya Grushchak, MD | 1588168108 | Dermatology Physician | San Diego, CA | 2018 |
| Laura Grushcow, LCSW | 1912010349 | Social Worker | Denver, CO | 2006 |
| Anne Grushetsky, OTR/L | 1386380905 | Occupational Therapist | Highland Heights, OH | 2022 |
| Mila Grushin, CCC-SLP | 1376834127 | Speech-Language Pathologist | New York, NY | 2011 |
| Jennifer Grushinski, COTA/L | 1831123736 | Occupational Therapy Assistant | Aiken, SC | 2006 |
| Melissa Grushinski, LPCA | 1912372558 | Counselor | New Bern, NC | 2015 |
| Nina Grushinski | 1528936226 | Behavior Technician | Columbia, MD | 2025 |
| Andrea Grushka, LMSW | 1427655224 | Clinical Social Worker | Baltimore, MD | 2020 |
| Jeremy Grushka, M.D. | 1063767358 | Student in an Organized Health Care Education/Training Program | Miami, FL | 2012 |
| Lois Grushka, QMHP | 1588153829 | Clinical Social Worker | Baker City, OR | 2018 |
| Nevin Grushka, DC | 1811993546 | Chiropractor | Coral Springs, FL | 2005 |
| Carl Grushkin, M.D. | 1023101557 | Pediatric Nephrology Physician | Los Angeles, CA | 2006 |
| David Grushkin, LMHC, LPC | 1942386016 | Mental Health Counselor | Vancouver, WA | 2006 |
| Dena Grushkin | 1154116606 | Doula | Teaneck, NJ | 2025 |
| Lauren Grushkin, FNP | 1174148357 | Gerontology Nurse Practitioner | Charlotte, NC | 2020 |
| Rebecca Grushkin | 1609528199 | Social Worker | Denver, CO | 2022 |
| Aaron Grushko, RPA | 1285882464 | Physician Assistant | Brooklyn, NY | 2008 |
| Glenn Grushko, PNP | 1023995164 | Pediatric Nurse Practitioner | Phoenix, AZ | 2025 |
| Judith Grushko, OTR/L | 1255585972 | Pediatric Occupational Therapist | Valley Stream, NY | 2008 |
| Michael Grushko, MD | 1922274364 | Internal Medicine Physician | Bronx, NY | 2008 |
| Danielle Grushkovskiy, DDS | 1407544711 | General Practice Dentistry | Brooklyn, NY | 2023 |
| Mikhail Grushkovskiy, MT | 1104028976 | Massage Therapist | Bellevue, WA | 2007 |
| Hannah Grushkowsky, NP | 1598378697 | Adult Health Nurse Practitioner | Thousand Oaks, CA | 2020 |
| Alexander Grushky, M.D. | 1174962328 | Diagnostic Radiology Physician | Ann Arbor, MI | 2013 |
| Erika Grushon, D.C. | 1881651933 | Chiropractor | Yellow Springs, OH | 2006 |
| Jennifer Grushon | 1255736294 | Naturopath | Spokane, WA | 2014 |
| Megan Grushon, RD, LD, CLT | 1104194521 | Registered Dietitian | Overland Park, KS | 2011 |
| Georgia Grusing, MSW, LCSW | 1104958123 | Clinical Social Worker | Denver, CO | 2007 |
| Marne Grusing | 1124410642 | Counselor | Toledo, OR | 2015 |
| Melvin Grusing, MSW, LCSW | 1477685493 | Clinical Social Worker | Denver, CO | 2007 |
| Mindy Grusing, LCSW | 1588835110 | Counselor | Springdale, AR | 2008 |
| Morgan Grusing, LMSW | 1841038395 | Social Worker | Springdale, AR | 2024 |
| Amy Gruska, OT | 1851453443 | Occupational Therapist | Canonsburg, PA | 2006 |
| Janis Gruska, ND | 1477674034 | Naturopath | San Diego, CA | 2007 |
| Jennifer Gruska, LMFT | 1508375726 | Marriage & Family Therapist | Beverly Hills, CA | 2017 |
| Sarah Gruska, PT | 1184699332 | Physical Therapist | Rochester, MN | 2006 |
| Jeffrey Gruskay, MD | 1588674345 | Neonatal-Perinatal Medicine Physician | Milford, CT | 2006 |
| Jordan Gruskay, M.D. | 1922494343 | Sports Medicine (Orthopaedic Surgery) Physician | Branford, CT | 2015 |
| Katherine Gruskay, PNP | 1053840546 | Pediatric Nurse Practitioner | Branford, CT | 2017 |
| Zoe Gruskay, LICSW | 1972221711 | Clinical Social Worker | Brighton, MA | 2022 |
| Donna Gruskiewicz, CRNA | 1295186559 | Certified Registered Nurse Anesthetist | Columbus, OH | 2016 |
| Alan Gruskin, D.O. | 1174586515 | Pain Medicine (Physical Medicine & Rehabilitation) Physician | Boca Raton, FL | 2006 |
| Bethany Gruskin | 1033005566 | Occupational Therapist | Los Angeles, CA | 2025 |
| Blair Gruskin | 1821751728 | Behavior Technician | Ormond Beach, FL | 2021 |
| Daniel Gruskin, M.D. | 1841233954 | Clinical Biochemical Genetics Physician | Decatur, GA | 2006 |
| Devon Gruskin | 1831962869 | Mental Health Counselor | Warren, MI | 2023 |
| Gila Gruskin, OTR/L | 1932795663 | Pediatric Occupational Therapist | Staten Island, NY | 2020 |
| Janet Gruskin, M.S. | 1134406796 | Speech-Language Pathologist | Bay Shore, NY | 2011 |
| Karen Gruskin, MD | 1679530869 | Pediatric Emergency Medicine (Pediatrics) Physician | Beverly, MA | 2006 |
| Laura Gruskin, MD | 1225029473 | Obstetrics & Gynecology Physician | Farmington Hills, MI | 2005 |
| Lori Gruskin, DMD | 1487263067 | General Practice Dentistry | Bradenton, FL | 2020 |
| Matthew Gruskin, MBA, CO | 1952874786 | Orthotist | Miami, FL | 2019 |
| Sanford Gruskin, D.D.S., M.S.D. | 1639299704 | Oral and Maxillofacial Surgery (Dentist) | Jonesboro, GA | 2007 |
| Ethan Gruskoff | 1760265888 | Behavior Technician | Tucson, AZ | 2023 |
| Craig Gruskowski, DMD | 1053332106 | Dentist | Littleton, MA | 2006 |
| Tabitha Gruskowski, ACNP | 1386446144 | Gerontology Nurse Practitioner | Saint Louis, MO | 2025 |
| Alan Grusky, MD | 1386394872 | Sports Medicine (Family Medicine) Physician | Oakland, CA | 2022 |
| Diane Grusky, PT | 1477607869 | Physical Therapist | Parkland, FL | 2007 |
| Elliott Grusky, D.C. | 1285822254 | Chiropractor | Miami, FL | 2007 |
| Harold Grusky, D.C. | 1831266428 | Chiropractor | Deerfield Beach, FL | 2006 |
| Ariel Grusky Foley | 1558039081 | Marriage & Family Therapist | Santa Cruz, CA | 2021 |
| Jennifer Gruslin, DONA TRAINED DOULA | 1023320264 | Doula | Warwick, RI | 2010 |
| Gayle Grusman, APN | 1568485662 | Pediatric Nurse Practitioner | Henderson, NV | 2006 |
| Jessica Grusmark | 1720577224 | Family Nurse Practitioner | Raynham, MA | 2018 |
| Breanna Grusnick | 1346163268 | Specialist | Astoria, NY | 2026 |
| Jessica Grusnick, P.A. | 1881619583 | Medical Physician Assistant | Milwaukee, WI | 2006 |
| Kaycie Grusnick, FNP-C | 1902209802 | Family Nurse Practitioner | Lake Orion, MI | 2014 |
| Lori Grusnis | 1548719768 | Counselor | Fort Pierce, FL | 2016 |
| Konrad Gruson, M.D. | 1699941781 | Orthopaedic Surgery Physician | Bronx, NY | 2008 |
| Lisa Gruson, M.D. | 1538118435 | Dermatology Physician | Brooklyn, NY | 2006 |
| Aaron Grusonik | 1326908526 | Clinical Psychologist | Fort Harrison, MT | 2025 |
| Laurie Grusonik | 1225711476 | Mental Health Counselor | Bozeman, MT | 2023 |
| Abigail Gruspe | 1578024022 | Dentist | Asheville, NC | 2019 |
| Arne Gruspe, D.D.S. | 1447261904 | Dentist | Scott Afb, IL | 2006 |
| Arnold Gruspe, MD | 1477518165 | Urology Physician | Weston, WV | 2006 |
| Jun Jun Gruspe | 1467384982 | Registered Nurse | Waipahu, HI | 2026 |
| Briana Gruspier, LCSW | 1538538467 | Clinical Social Worker | Schenectady, NY | 2015 |
| Alayna Gruss, M.A., NCC | 1407582216 | Professional Counselor | Belington, WV | 2022 |
| Amanda Gruss, PTA | 1962750281 | Physical Therapy Assistant | Peru, IN | 2012 |
| Amy Gruss | 1093659922 | Oncology Pharmacist | Jefferson City, MO | 2026 |
| Angela Gruss, RN | 1518305937 | Registered Nurse | Hinckley, OH | 2013 |
| Brandie Gruss, LMT | 1891061487 | Massage Therapist | Tiffin, OH | 2012 |
| Calvin Gruss | 1871980912 | Anesthesiology Physician | Nashville, TN | 2015 |
| Candice Gruss, ARNP | 1457961476 | Primary Care Nurse Practitioner | Des Moines, IA | 2020 |
| Claudia Gruss, M.D. | 1548207194 | Gastroenterology Physician | Redding, CT | 2006 |
| Cynthia Gruss, ATC | 1689694754 | Physical Therapist | Glastonbury, CT | 2006 |
| Frank Gruss, SUDPT | 1407628282 | Addiction (Substance Use Disorder) Counselor | Burlington, WA | 2023 |
| Ilynn Gruss, NURSE PRACTITIONER | 1669215729 | Family Nurse Practitioner | Marana, AZ | 2024 |
| J. Gruss, B.S., D.D.S. | 1013284447 | Dentist | Cortlandt Manor, NY | 2011 |
| Jason Gruss, M.D. | 1558574319 | Physical Medicine & Rehabilitation Physician | Elk Grove Village, IL | 2007 |
| Jason Gruss | 1750971776 | Pharmacist | Columbia, MO | 2021 |
| Jennifer Gruss, R.N. | 1083996060 | Registered Nurse | Wantagh, NY | 2011 |
| Jessica Gruss | 1760244883 | Social Worker | Albany, NY | 2024 |
| Julia Gruss | 1134097959 | Case Manager/Care Coordinator | White Cloud, MI | 2025 |
| Karin Gruss, LCSW LCADC | 1649369448 | Social Worker | Phillipsburg, NJ | 2006 |
| Kristen Gruss, PA-C | 1275031809 | Physician Assistant | Charleston, SC | 2018 |
| Leah Gruss, MD | 1184669004 | Diagnostic Radiology Physician | New York, NY | 2006 |
| Leslie Gruss, MD | 1366540759 | Gynecology Physician | New York, NY | 2006 |
| Mary Gruss, ANP-C | 1013909043 | Adult Health Nurse Practitioner | Albany, NY | 2005 |
| Natalie Gruss, LMFT | 1720239148 | Mental Health Counselor | West Des Moines, IA | 2008 |
| Rachael Gruss, CRNP | 1417704560 | Nurse Practitioner | Williamsport, PA | 2024 |
| Sydnie Gruss, DPT, PT | 1982362463 | Physical Therapist | Antioch, CA | 2021 |
| William Gruss, M.D. | 1306982491 | Internal Medicine Physician | Crystal River, FL | 2007 |
| Heidi Gruss-Ververis, LPC | 1184833824 | Mental Health Counselor | Norwich, CT | 2007 |
| Jessica Grussemeyer, PT, DPT | 1790096097 | Orthopedic Physical Therapist | Marietta, GA | 2010 |
| Christopher Grussendorf, MD, MPH | 1437145570 | Occupational Medicine Physician | Jbsa Randolph, TX | 2005 |
| Joel Grussendorf, PHARMD | 1811371792 | Pharmacist | Salt Lake City, UT | 2015 |
| Mary Grussendorf | 1619345477 | Case Manager/Care Coordinator | Evansville, WY | 2015 |
| Elvira Grussenmeyer, LMT | 1144116484 | Massage Therapist | Portland, OR | 2025 |
| Paul Grussenmeyer, D.M.D. | 1003835240 | General Practice Dentistry | Cherry Hill, NJ | 2006 |
| Traci Grussenmeyer | 1770058521 | Physician Assistant | Sacramento, CA | 2018 |
| Courtney Grusser | 1740859990 | Technician/Technologist | Sterling Heights, MI | 2021 |
| Jody Grusser, CRNA | 1104894138 | Certified Registered Nurse Anesthetist | Royal Oak, MI | 2006 |
| Chana Baila Grussgott | 1265393250 | Specialist | Brooklyn, NY | 2025 |
| Feige Grussgott | 1346863156 | Specialist | Brooklyn, NY | 2020 |
| Jordana Grussgott, ARNP | 1861423931 | Family Nurse Practitioner | Seattle, WA | 2006 |
| Rebecca Grussgott, MA SLP | 1194118844 | Speech-Language Pathologist | New York, NY | 2015 |
| Sarah Grussgott, MS | 1104323484 | Specialist | Brooklyn, NY | 2018 |
| Oscar Grussi | 1902666571 | Social Worker | Los Angeles, CA | 2024 |
| William Grussi, PHYSICAL THERAPIST | 1760985006 | Physical Therapist | Sun City Ctr, FL | 2018 |
| Erwin Grussie | 1679917561 | Hematology (Internal Medicine) Physician | Los Angeles, CA | 2013 |
| Brooke Grussing | 1740687987 | Registered Dietitian | Columbia, SC | 2014 |
| Christine Grussing | 1992226492 | Speech-Language Pathologist | Minneapolis, MN | 2017 |
| Emily Grussing, MD | 1114787157 | Student in an Organized Health Care Education/Training Program | Boston, MA | 2024 |
| Esther Grussing, RBT | 1558125633 | Behavior Technician | Crestview, FL | 2024 |
| Joan Grussing, LPC-S, LISAC | 1588937643 | Mental Health Counselor | Glendale, AZ | 2012 |
| Jonathan Grussing, D.C. | 1710022348 | Chiropractor | Clara City, MN | 2007 |
| Maleah Grussing, N.P. | 1164553582 | Nurse Practitioner | Danville, IL | 2007 |
| Renee Grussing, LSW | 1386734424 | Social Worker | Fargo, ND | 2006 |
| Riley Grussing | 1700436169 | Behavior Analyst | Maple Grove, MN | 2019 |
| Carleen Grussling, LCSW, MSW | 1639431224 | Clinical Social Worker | Hamilton, MT | 2012 |
| Elizabeth Grussling, DC | 1689386898 | Chiropractor | Missoula, MT | 2022 |
| Stephen Grussmark, DDS.,MSD | 1427301704 | Orthodontics and Dentofacial Orthopedics Dentistry | Miami, FL | 2012 |
| Arianna Grusso | 1669196648 | Pharmacist | Allentown, PA | 2022 |
| Mark Grusso, DPM | 1144260175 | Podiatrist | Phillipsburg, NJ | 2006 |
| Aleshka Grusy, PTA | 1164022398 | Physical Therapy Assistant | Peoria, IL | 2020 |
| Kayla Gruszcynski, DDS | 1932767092 | General Practice Dentistry | Saint Petersburg, FL | 2019 |
| Alexsandra Gruszczyk | 1295149581 | Behavior Analyst | Leesburg, FL | 2014 |
| Xennia Gruszczyk | 1528772613 | Registered Nurse | Marion, IL | 2023 |
| Julie Gruszczynski, PA-C | 1225783061 | Physician Assistant | Rockford, IL | 2022 |
| Maria Gruszczynski, P.T. | 1881839769 | Physical Therapist | Fresno, CA | 2008 |
| Nelson Gruszczynski, MD | 1639798762 | Otolaryngology Physician | Hollywood, FL | 2020 |
| Sherri Gruszczynski, SLP | 1356745715 | Speech-Language Pathologist | Rancho Santa Margarita, CA | 2014 |
| Sonya Gruszczynski | 1952721573 | Speech-Language Pathologist | Highlands Ranch, CO | 2014 |
| Agnieszka Gruszecka, LMT | 1538476536 | Specialist | Sarasota, FL | 2010 |
| Alana Gruszecki | 1437492618 | Pharmacist | Boston, MA | 2013 |
| Amy Gruszecki, DO | 1942483870 | Forensic Pathology Physician | Mesquite, TX | 2007 |
| Andrea Gruszecki, ND | 1124592431 | Naturopath | Renton, WA | 2019 |
| Bonnie Gruszecki, ED.D. | 1861552580 | Marriage & Family Therapist | Florence, MA | 2006 |
| Catherine Gruszecki, PA | 1780245282 | Surgical Physician Assistant | Poughkeepsie, NY | 2019 |
| Ryan Gruszecki, LSW | 1962288316 | Social Worker | Lisbon, OH | 2023 |
| Sandra Gruszeczka, MASTERS | 1144964701 | Peer Specialist | Broken Arrow, OK | 2022 |
| Jonathon Gruszeczki, LCPC | 1710305685 | Mental Health Counselor | St Charles, IL | 2014 |
| Diane Gruszewski, LCSW | 1710181417 | Clinical Social Worker | Pitman, NJ | 2007 |
| Kara Gruszewski, LGPC | 1023402161 | Mental Health Counselor | Washington, DC | 2015 |
| Nicole Gruszewski, LPCC-S | 1003232406 | Mental Health Counselor | Barberton, OH | 2014 |
| Bernie Gruszka | 1487761367 | Physical Therapist | Creve Coeur, MO | 2006 |
| David Gruszka, D.C. | 1790871200 | Chiropractor | Wautoma, WI | 2006 |
| Kathleen Gruszka, RN | 1194314534 | Registered Nurse | Clayton, MO | 2021 |
| Mary Ellen Gruszka, MD | 1073506101 | Pediatrics Physician | North Riverside, IL | 2005 |
| Melinda Gruszka, O.D. | 1194050203 | Optometrist | Largo, FL | 2009 |
| Paul Gruszka, M.D. | 1295733889 | Orthopaedic Surgery Physician | Chesterton, IN | 2005 |
| Samuel Gruszka | 1134968167 | Optometrist | Largo, FL | 2024 |
| Sarah Gruszka, PSYD | 1003323189 | Psychologist | Solana Beach, CA | 2018 |
| Sarah Gruszka | 1255032074 | Behavior Technician | Farmington Hills, MI | 2023 |
| Sera Gruszka, PHD, LP | 1093943359 | Psychologist | Grand Rapids, MI | 2009 |
| Sophie Gruszka, LMT | 1669061818 | Massage Therapist | Creswell, OR | 2021 |
| Wiktoria Gruszka | 1215761655 | Physical Therapist | East Peoria, IL | 2024 |
| Adrian Gruszko, M.D. | 1255392379 | Pediatrics Physician | Poughkeepsie, NY | 2006 |
| John Gruszkos, PHD | 1619988987 | Clinical Psychologist | Richmond, VA | 2006 |
| Julie Gruszynske, CCC-SLP | 1720740079 | Speech-Language Pathologist | Austin, TX | 2021 |
| Britney Gruszynski, APNP, FNP-C | 1952277832 | Nurse Practitioner | Green Bay, WI | 2025 |
| Ezra Gruszynski, PHARMD | 1427397207 | Pharmacist | Crivitz, WI | 2013 |
| Heather Gruszynski, NP | 1386664423 | Nurse Practitioner | Iola, WI | 2006 |
| Jacqueline Gruszynski, CCC-SLP | 1780746750 | Speech-Language Pathologist | Madison, GA | 2006 |
| Jason Gruszynski, RPH | 1861744468 | Pharmacist | Wisconsin Rapids, WI | 2012 |
| Mark Gruszynski, M.D. | 1396188033 | Plastic and Reconstructive Surgery Physician | Paradise Valley, AZ | 2013 |
| Robert Gruszynski, R.PH. | 1902042203 | Pharmacist | Hill City, SD | 2008 |
| Sarita Gruszynski, CAPSW | 1801168372 | Clinical Social Worker | Iron Mountain, MI | 2012 |
| Tessa Gruszynski, APSW | 1750210043 | School Social Worker | Wisconsin Rapids, WI | 2026 |
| Thomas Gruszynski, MD | 1083721310 | Obstetrics & Gynecology Physician | South Bend, IN | 2006 |
| Carolyn Grut | 1205575594 | Pharmacist | Cleveland, OH | 2022 |
| Christian Gruta | 1740734813 | Anesthesiologist Assistant | Johns Creek, GA | 2016 |
| Normandie Gruta, BS, RNFA, CNOR | 1699655514 | Registered Nurse First Assistant | Alexandria, VA | 2025 |
| Anita Grutbo, MS | 1689977076 | Marriage & Family Therapist | Santa Fe Springs, CA | 2010 |
| Courtney Grutbo | 1033933882 | Clinical Social Worker | Anaheim, CA | 2024 |
| Victor Grutchfield, RPH | 1629117122 | Pharmacist | Mill Creek, WA | 2007 |
| Alazia Grutel | 1134006554 | Nurse's Aide | Omaha, NE | 2025 |
| Megan Gruter | 1336008382 | Personal Care Attendant | Las Vegas, NV | 2026 |
| Amber Gruters, M.D. | 1306073598 | General Practice Physician | Fort Campbell, KY | 2009 |
| Barbara Grutkowski, RPH | 1669749461 | Pharmacist | Huntsville, TX | 2011 |
| John Grutkowski, PH.D. | 1114139375 | Forensic Psychologist | Wilkes Barre, PA | 2007 |
| Lora Grutkowski, RN FNP-BC ACNS-BC | 1134280464 | Nurse Practitioner | Sebastopol, CA | 2006 |
| Marla Grutkowski, CRNA | 1851317770 | Certified Registered Nurse Anesthetist | Philadelphia, PA | 2006 |
| Alice Grutman | 1720439151 | Clinical Social Worker | Elk Grove, CA | 2016 |
| Aurora Grutman | 1447014360 | Student in an Organized Health Care Education/Training Program | Baltimore, MD | 2024 |
| Gennadiy Grutman, M.D. | 1487950762 | Internal Medicine Physician | Brooklyn, NY | 2011 |
| Nicole Grutman, RN | 1114293826 | Registered Nurse | Concord, CA | 2012 |
| Valentine Grutman, OT | 1871198051 | Occupational Therapist | Brooklyn, NY | 2020 |
| Carmalen Grutsch, OT | 1174706675 | Occupational Therapist | Billings, MT | 2007 |
| Michelle Grutsch | 1124416821 | Occupational Therapist | Rossville, KS | 2015 |
| Molly Grutsch, PHARMD | 1710274063 | Pharmacist | Missoula, MT | 2011 |
| Rebecca Grutsch, M.D. | 1093031908 | Anesthesiology Physician | Somers Point, NJ | 2010 |
| Anthea Grutsis | 1205634565 | Case Manager/Care Coordinator | Payson, UT | 2025 |
| Arthur Grutt, D.M.D | 1366692477 | Dentist | Clark, NJ | 2008 |
| Joseph Grutta, LICSW | 1265873012 | Clinical Social Worker | Brattleboro, VT | 2013 |
| Anni Gruttadaro, LMSW | 1104447796 | Social Worker | Rochester, NY | 2020 |
| Jennifer Joan Gruttadaro, RPT | 1326224379 | Physical Therapist | Penfield, NY | 2008 |
| Erin Gruttadauria | 1346599578 | Occupational Therapist | Kenmore, NY | 2012 |
| Jacob Gruttadauria | 1043762248 | Family Nurse Practitioner | Strongsville, OH | 2016 |
| Michael Gruttadauria | 1124366935 | Case Manager/Care Coordinator | Kenmore, NY | 2013 |
| Michael Gruttadauria, DPM | 1386601367 | Foot Surgery Podiatrist | Rochester, NY | 2006 |
| Michael Gruttadauria, DC, DACAN | 1760693238 | Neurology Chiropractor | Plainview, NY | 2007 |
| Michelle Gruttadauria | 1346745957 | Obstetrics & Gynecology Physician | Burlington, MA | 2018 |
| Robert Gruttadauria, PT | 1093062804 | Physical Therapist | Providence, RI | 2012 |
| Salvatore Gruttadauria, AU.D. | 1336178821 | Audiologist-Hearing Aid Fitter | Kenmore, NY | 2006 |
| Tonya Gruttaria, PNP | 1891896296 | Pediatric Nurse Practitioner | Orchard Park, NY | 2006 |
| Angela Grutter, MA, LLPC | 1134907454 | Professional Counselor | Grand Rapids, MI | 2023 |
| Baron Grutter, DDS | 1134440340 | General Practice Dentistry | Gladstone, MO | 2010 |
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).