Providers Jamie Olschewski, MD to Clara Olsen
300 individual NPIs in the federal registry, part 16,203 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. 96 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Jamie Olschewski, MD | 1245790468 | Psychiatry Physician | Port Jefferson, NY | 2019 |
| Jon Olschewski | 1902072598 | Other Technician | Cedar City, UT | 2008 |
| Julie Olschewski, RPH | 1447337563 | Pharmacist | Rochester, NY | 2006 |
| McKenzie Olschewski | 1710266614 | Counselor | Salt Lake City, UT | 2011 |
| Alexa Olschlager, LPCC | 1417770918 | Professional Counselor | Fargo, ND | 2024 |
| Jade Olschlager | 1558100784 | Peer Specialist | Fargo, ND | 2024 |
| Kaitlyn Olschlager | 1609731694 | Specialist | East Grand Forks, MN | 2025 |
| Thomas Olschner, PH.D. | 1922236041 | Clinical Psychologist | Westminster, CO | 2009 |
| Barbara Olseen, MSW, LCSW | 1801300744 | Clinical Social Worker | Bailey, CO | 2017 |
| Jane Olsefski, PA | 1154439073 | Physician Assistant | Ithaca, NY | 2006 |
| Lynn Olsefski, LCSW | 1801090378 | Clinical Social Worker | Ahoskie, NC | 2007 |
| Lisa Olsem | 1821639543 | Attendant Care Provider | N Saint Paul, MN | 2019 |
| Megan Olsem, PHARMD | 1780431809 | Pharmacist | Alexandria, MN | 2024 |
| Shannon Olsem | 1598082471 | Addiction (Substance Use Disorder) Counselor | Sacramento, CA | 2010 |
| Aarika Olsen | 1871028258 | Clinical Neuropsychologist | Dayton, OH | 2017 |
| Aaron Olsen, RN | 1104663327 | Student in an Organized Health Care Education/Training Program | Joint Base Lewis McChord, WA | 2024 |
| Aaron Olsen | 1306243118 | Case Manager/Care Coordinator | Ogden, UT | 2014 |
| Aaron Olsen | 1518843697 | Counselor | Edmond, OK | 2025 |
| Aaron Olsen, DO | 1922422971 | Adult Reconstructive Orthopaedic Surgery Physician | Portsmouth, VA | 2014 |
| Abbigayle Olsen, LMP | 1053753251 | Massage Therapist | Kennewick, WA | 2013 |
| Abby Olsen, MD, PHD | 1760820971 | Specialist | Pittsburgh, PA | 2013 |
| Abby Olsen, ANP-BC | 1821229154 | Adult Health Nurse Practitioner | Battle Creek, MI | 2009 |
| Adam Olsen, M.D. | 1003254822 | Orthopaedic Surgery Physician | Boston, MA | 2013 |
| Adam Olsen | 1053195719 | Addiction (Substance Use Disorder) Counselor | Ventura, CA | 2023 |
| Adam Olsen, DMD | 1205156478 | Oral and Maxillofacial Surgery (Dentist) | Denver, CO | 2010 |
| Adam Olsen, PA-C | 1467442533 | Medical Physician Assistant | Trumbull, CT | 2005 |
| Agatha Olsen, PA-C | 1295558005 | Physician Assistant | Greenville, NC | 2024 |
| Aimee Olsen, RN | 1164798427 | Registered Nurse | Brainerd, MN | 2012 |
| Aimee Olsen | 1356203970 | Social Worker | Murray, UT | 2025 |
| Ajona Olsen, ANP | 1215089883 | Adult Health Nurse Practitioner | Phoenix, AZ | 2007 |
| Akira Olsen, PSY.D. | 1093910184 | Clinical Psychologist | Burlingame, CA | 2007 |
| Alaina Olsen, MS | 1922827310 | Mental Health Counselor | Frederick, MD | 2024 |
| Alessandra Olsen, NP | 1497421424 | Family Nurse Practitioner | New Hyde Park, NY | 2021 |
| Alex Olsen, M.D. | 1003014044 | Surgical Critical Care Physician | Tulsa, OK | 2007 |
| Alexa Olsen, BS | 1508474693 | Case Manager/Care Coordinator | Fort Wayne, IN | 2020 |
| Alexander Olsen | 1891354080 | Family Medicine Physician | South Ogden, UT | 2019 |
| Alexandra Olsen | 1104410950 | Advanced Practice Midwife | Rochester, NY | 2021 |
| Alexandra Olsen, AGACNP-BC | 1538935903 | Acute Care Nurse Practitioner | Arlington, VA | 2023 |
| Alexandria Olsen | 1275296329 | Registered Dietitian | Bemidji, MN | 2021 |
| Alice Olsen | 1609201920 | Personal Care Attendant | Bethel, AK | 2013 |
| Alicia Olsen | 1164876702 | Registered Dietitian | Oswego, NY | 2016 |
| Aliha Olsen, CSA | 1396663415 | Surgical Assistant | Hooper, UT | 2026 |
| Alison Olsen, PT, DPT | 1003342924 | Physical Therapist | Canton, GA | 2017 |
| Alison Olsen, PT | 1518954221 | Physical Therapist | Reno, NV | 2005 |
| Alison Olsen, P.A. | 1669511911 | Physician Assistant | Manchester, NH | 2007 |
| Alison Olsen, LADC | 1801017280 | Addiction (Substance Use Disorder) Counselor | Grass Valley, CA | 2007 |
| Alison Olsen | 1821604760 | Behavior Technician | Dupont, WA | 2020 |
| Alix Olsen, PA | 1639660624 | Medical Physician Assistant | Clearwater, FL | 2018 |
| Allana Olsen | 1629744743 | Case Manager/Care Coordinator | Provo, UT | 2021 |
| Allen Olsen, MD | 1932115003 | Family Medicine Physician | Orem, UT | 2006 |
| Allisa Olsen, RDN | 1952253205 | Registered Dietitian | Austin, TX | 2026 |
| Allison Olsen, REGISTERED NURSE | 1396312278 | Critical Care Neonatal Nurse Practitioner | Salt Lake City, UT | 2021 |
| Allison Olsen, NP | 1629874136 | Women's Health Nurse Practitioner | Vancouver, WA | 2025 |
| Alma Olsen | 1871373217 | Case Manager/Care Coordinator | Somerville, MA | 2023 |
| Alyson Olsen | 1407709231 | Counselor | Corvallis, OR | 2026 |
| Alyssa Olsen | 1245709922 | Occupational Therapist | Corpus Christi, TX | 2018 |
| Alyssa Olsen | 1306589023 | Professional Counselor | York, PA | 2022 |
| Alyssa Olsen | 1518434562 | Occupational Therapist | Bridgwater, NJ | 2018 |
| Alyssa Olsen, BA | 1730504366 | Doula | Enumclaw, WA | 2014 |
| Alyssa Olsen | 1770933541 | Surgical Physician Assistant | Manchester, CT | 2016 |
| Alyssa Olsen, HCA, CNA | 1841667581 | Home Health Aide | Vancouver, WA | 2015 |
| Amanda Olsen, APRN, NNP-BC | 1225663768 | Neonatal Nurse Practitioner | Minneapolis, MN | 2020 |
| Amanda Olsen | 1326656059 | Hearing Instrument Specialist | Minneapolis, MN | 2020 |
| Amanda Olsen, PA-C | 1407154354 | Physician Assistant | De Pere, WI | 2011 |
| Amanda Olsen, MD | 1407227507 | Anesthesiology Physician | Cincinnati, OH | 2015 |
| Amanda Olsen, SLP-CFY | 1548919699 | Speech-Language Pathologist | Berlin, NJ | 2022 |
| Amanda Olsen, PA | 1609143411 | Medical Physician Assistant | Lumberton, NC | 2011 |
| Amanda Olsen | 1669127072 | Assistant Behavior Analyst | Rockwall, TX | 2022 |
| Amanda Olsen, LCSW | 1700168465 | Clinical Social Worker | Oregon City, OR | 2011 |
| Amanda Olsen | 1841653433 | Student in an Organized Health Care Education/Training Program | Forest Grove, OR | 2016 |
| Amber Olsen, DO | 1114487337 | Family Medicine Physician | Sheffield, AL | 2019 |
| Amberly Olsen | 1821818055 | Social Worker | Palos Park, IL | 2024 |
| Ambre Olsen, MD | 1841440757 | Obstetrics & Gynecology Physician | Seattle, WA | 2008 |
| Amy Olsen, SLP | 1083585244 | Speech-Language Pathologist | Buffalo, NY | 2025 |
| Amy Olsen | 1134002488 | Psychiatric/Mental Health Registered Nurse | Honolulu, HI | 2025 |
| Amy Olsen, MD | 1154337350 | Family Medicine Physician | Issaquah, WA | 2006 |
| Amy Olsen | 1336580398 | Certified Registered Nurse Anesthetist | Milwaukee, WI | 2013 |
| Amy Olsen, LCPC | 1457686362 | Professional Counselor | Meridian, ID | 2009 |
| Amy Olsen, LCSW-P | 1497178487 | Mental Health Counselor | Tulsa, OK | 2014 |
| Amy Olsen, FNP | 1598991275 | Family Nurse Practitioner | Vernal, UT | 2009 |
| Amy Olsen, D.C. | 1740302173 | Chiropractor | Bremerton, WA | 2007 |
| Amy Olsen, L.M.P. | 1821142357 | Massage Therapist | Bellevue, WA | 2007 |
| Anastacia Olsen, MD | 1407967888 | Emergency Medicine Physician | Kansas City, MO | 2006 |
| Anastasia Olsen | 1114647815 | Social Worker | Grand Blanc, MI | 2022 |
| Andelyn Olsen, DMD | 1710477658 | General Practice Dentistry | Las Vegas, NV | 2018 |
| Andrea Olsen, PT, DPT | 1053960468 | Physical Therapist | Linwood, NJ | 2019 |
| Andrea Olsen, CADC-I | 1265097604 | Addiction (Substance Use Disorder) Counselor | Bend, OR | 2019 |
| Andrea Olsen, OTR | 1790338655 | Occupational Therapist | Shawano, WI | 2019 |
| Andrew Olsen | 1033833652 | Behavior Technician | Sacramento, CA | 2022 |
| Andrew Olsen, DO | 1053873950 | Pain Medicine Physician | Akron, OH | 2019 |
| Andrew Olsen, D.D.S | 1245551985 | General Practice Dentistry | Chicago, IL | 2010 |
| Andrew Olsen, MS | 1376025783 | Physician Assistant | Everett, MA | 2018 |
| Andrew Olsen, D.O. | 1386088821 | Diagnostic Radiology Physician | Portland, OR | 2013 |
| Andrew Olsen, SUDP | 1710635438 | Addiction (Substance Use Disorder) Counselor | Puyallup, WA | 2022 |
| Andrew Olsen, MD | 1811359532 | Neurology Physician | Marietta, GA | 2016 |
| Andrew Olsen, M.D. | 1831383173 | Diagnostic Radiology Physician | Englewood, CO | 2007 |
| Andrew Olsen | 1912480302 | Behavior Technician | Pleasanton, CA | 2018 |
| Andrew Olsen | 1962321844 | Psychiatric/Mental Health Nurse Practitioner | Oconomowoc, WI | 2026 |
| Andy Olsen, DO | 1144617499 | Physical Medicine & Rehabilitation Physician | Parker, CO | 2015 |
| Angela Olsen | 1063375889 | Behavior Technician | Spanish Fork, UT | 2025 |
| Angela Olsen, FNP | 1255146841 | Family Nurse Practitioner | Okatie, SC | 2025 |
| Angela Olsen | 1386376184 | Behavior Technician | Draper, UT | 2022 |
| Angela Olsen | 1710875851 | Home Health Aide | Buckhannon, WV | 2025 |
| Angela Olsen | 1720697766 | Mental Health Counselor | Spanish Fork, UT | 2020 |
| Angela Olsen | 1790211142 | Case Manager/Care Coordinator | Melville, NY | 2017 |
| Angela Olsen | 1861096786 | Behavior Technician | Colorado Springs, CO | 2020 |
| Angela Olsen, LISW-CP | 1881982544 | Clinical Social Worker | Greenwood, SC | 2011 |
| Angela Olsen, LAPC | 1891472874 | Counselor | Bismarck, ND | 2023 |
| Angelina Olsen | 1366265571 | Behavior Technician | East Hartford, CT | 2024 |
| Anina Olsen, OTRL | 1679630487 | Occupational Therapist | Bloomfield, NY | 2007 |
| Ann Olsen, L.M., C.P.M. | 1023091311 | Midwife | Enumclaw, WA | 2005 |
| Ann Olsen, PT | 1093939886 | Physical Therapist | Phoenix, AZ | 2007 |
| Ann Olsen, LPTA | 1285071985 | Physical Therapy Assistant | Brown Deer, WI | 2013 |
| Ann-Marie Olsen, MSW, LCSW | 1255468153 | Clinical Social Worker | Madison, WI | 2007 |
| Anna Olsen | 1265914733 | Mental Health Counselor | Wells, ME | 2018 |
| Anna Olsen | 1306589759 | Behavior Technician | Alameda, CA | 2022 |
| Anna Olsen | 1326512898 | Professional Counselor | Dover, OH | 2019 |
| Anna Olsen, PA-C | 1518107127 | Medical Physician Assistant | Medford, OR | 2009 |
| Anna Olsen, LPC | 1942361415 | Mental Health Counselor | Kinnelon, NJ | 2006 |
| Anna Michelle Olsen | 1790119626 | Anesthesiology Physician | Palo Alto, CA | 2013 |
| Annamarie Olsen | 1922467356 | Counselor | San Diego, CA | 2016 |
| Anne Olsen | 1194422956 | Behavior Technician | Spanish Fork, UT | 2023 |
| Anne Olsen, BS, MSW, RC | 1265691737 | Clinical Social Worker | Tukwila, WA | 2008 |
| Anne Olsen, MD | 1437653102 | Obstetrics & Gynecology Physician | New York, NY | 2018 |
| Anne Olsen, MSW, LMSW, ACSW | 1821195124 | Clinical Social Worker | Bay City, MI | 2006 |
| Annette Olsen, CRNA | 1215906045 | Certified Registered Nurse Anesthetist | Nashville, TN | 2006 |
| Annie Olsen | 1508541517 | Behavior Technician | Portland, OR | 2023 |
| Annzolee Olsen, RN | 1679114912 | Registered Nurse | Everett, WA | 2019 |
| Ansgar Olsen, DPM | 1245679802 | Foot & Ankle Surgery Podiatrist | Columbus, IN | 2013 |
| Anthony Olsen, L.AC., M.S. | 1104068899 | Acupuncturist | Concord, CA | 2009 |
| April Olsen, WHNP-BC | 1972945228 | Family Nurse Practitioner | San Diego, CA | 2013 |
| Ariana Olsen | 1033966460 | Clinical Social Worker | Ithaca, NY | 2024 |
| Arianna Olsen, LSW | 1073439618 | Social Worker | Cleveland, OH | 2026 |
| Arne Olsen, M.D. | 1821108564 | Vascular Surgery Physician | Billings, MT | 2006 |
| Ashlee Olsen, LCSW | 1871384735 | Clinical Social Worker | Williamsburg, VA | 2025 |
| Ashley Olsen, D.P.T. | 1144526237 | Physical Therapist | San Dimas, CA | 2011 |
| Ashley Olsen, PA | 1184052813 | Physician Assistant | Franklin, TN | 2013 |
| Ashley Olsen | 1376802801 | Social Worker | West Palm Beach, FL | 2012 |
| Ashley Olsen, LMSW | 1407615776 | Clinical Social Worker | Norwich, CT | 2024 |
| Ashley Olsen, MSW, LCSW | 1427256452 | Clinical Social Worker | Bozeman, MT | 2007 |
| Ashley Olsen, BCBA | 1467835645 | Behavior Analyst | Concord, CA | 2015 |
| Ashley Olsen | 1619856085 | Behavior Technician | Mechanicsburg, PA | 2025 |
| Ashley Olsen | 1861057192 | Clinical Social Worker | Omaha, NE | 2019 |
| Ashlynn Olsen | 1972327260 | Behavior Technician | Saint Cloud, MN | 2024 |
| Aspen Olsen, LMSW | 1609472562 | Clinical Social Worker | Belmond, IA | 2020 |
| Atalie Olsen, BCBA | 1316476062 | Behavior Analyst | Christiansted, VI | 2017 |
| Audrey Olsen, DO | 1578499620 | Family Medicine Physician | Chesterfield, MO | 2026 |
| Autumn Olsen | 1861989113 | Case Manager/Care Coordinator | Salt Lake City, UT | 2018 |
| Avarie Olsen, RDN | 1861379984 | Registered Dietitian | Rexburg, ID | 2025 |
| Barbara Olsen, LPC | 1205342821 | Professional Counselor | Denver, PA | 2017 |
| Barbara Olsen | 1336700293 | Clinical Social Worker | Alpena, MI | 2019 |
| Barbara Olsen | 1669733788 | Specialist | Bayport, NY | 2012 |
| Barney Olsen, D.D.S., M.S. | 1447299607 | Pediatric Dentistry | Salt Lake City, UT | 2006 |
| Barry Olsen, PT | 1689756686 | Physical Therapist | Murray, UT | 2006 |
| Ben Olsen | 1316740707 | Student in an Organized Health Care Education/Training Program | Buffalo, NY | 2025 |
| Benjamin Olsen, MD | 1134689649 | Student in an Organized Health Care Education/Training Program | Aurora, CO | 2019 |
| Benjamin Olsen, PHARM.D. | 1568730190 | Pharmacist | Bakersfield, CA | 2011 |
| Benjy Olsen, DPM | 1205889417 | Podiatrist | Detroit Lakes, MN | 2006 |
| Beth Olsen | 1619624988 | Addiction (Substance Use Disorder) Counselor | Vista, CA | 2022 |
| Bethany Olsen | 1215730775 | School Registered Nurse | Clarkston, WA | 2025 |
| Betsy Olsen, DPT | 1942518386 | Physical Therapist | Edmonds, WA | 2010 |
| Billie Olsen, LCSW | 1093924649 | Clinical Social Worker | Tampa, FL | 2007 |
| Bjorn Olsen, M.D. | 1134396179 | Critical Care Medicine (Anesthesiology) Physician | Lexington, KY | 2008 |
| Blaine Olsen, MD | 1588715320 | Family Medicine Physician | Denver, CO | 2007 |
| Blaine Olsen, D.C. | 1801997143 | Chiropractor | Bismarck, ND | 2006 |
| Blaine Olsen, D.O. | 1922236454 | Family Medicine Physician | Pocatello, ID | 2009 |
| Bonnie Olsen, PHD | 1720016181 | Psychologist | Los Angeles, CA | 2006 |
| Boomer Olsen, DO | 1437809936 | Hospitalist Physician | Salt Lake City, UT | 2022 |
| Brad Olsen, DPT | 1902098999 | Physical Therapist | Northport, ME | 2007 |
| Braden Olsen, MD | 1316528169 | Pediatric Hematology & Oncology Physician | Aurora, CO | 2021 |
| Bradley Olsen | 1053046581 | Peer Specialist | Aurora, IL | 2022 |
| Bradley Olsen, CDT | 1225769227 | Dental Therapist | Fairmont, MN | 2022 |
| Bradley Olsen | 1598382939 | Pharmacist | Spencer, IA | 2020 |
| Bradley Olsen, DNP | 1750927927 | Family Nurse Practitioner | Saint George, UT | 2019 |
| Brady Olsen, LCSW | 1023237427 | Clinical Social Worker | Riverton, UT | 2007 |
| Brady Olsen | 1427872936 | Physician Assistant | Brookhaven, GA | 2024 |
| Brady Olsen, DO | 1477189108 | Emergency Medicine Physician | Eglin Afb, FL | 2020 |
| Brady Olsen, DMD | 1609971043 | Endodontics | Bountiful, UT | 2006 |
| Brady Olsen, FNP | 1902833106 | Family Nurse Practitioner | Phoenix, AZ | 2006 |
| Brandi Olsen, LMP | 1922120286 | Specialist | Sumner, WA | 2007 |
| Brandice Olsen | 1104196351 | Certified Registered Nurse Anesthetist | Anchorage, AK | 2012 |
| Brandie Olsen | 1013621887 | Speech-Language Pathologist | Saint Francisville, LA | 2023 |
| Brandon Olsen | 1467317826 | Physical Therapist | South Jordan, UT | 2025 |
| Brandon Olsen, R. PH | 1770461444 | Pharmacist | East Hampton, NY | 2025 |
| Brandy Olsen | 1306692462 | Behavior Technician | Bloomington, MN | 2024 |
| Breanna Olsen | 1013458140 | Pharmacist | Ventura, CA | 2017 |
| Brenda Olsen, L.C.P.C. | 1013103621 | Professional Counselor | Barrington, IL | 2007 |
| Brenda Olsen | 1386055481 | Clinical Social Worker | Ronan, MT | 2014 |
| Brendon Olsen | 1912109174 | Physical Therapist | Saranac Lake, NY | 2007 |
| Brenen Olsen, DDS | 1801320221 | Oral and Maxillofacial Surgery (Dentist) | Wenatchee, WA | 2017 |
| Brent Olsen | 1881737575 | Pharmacist | Seattle, WA | 2007 |
| Brent Olsen | 1972162634 | Mental Health Counselor | Longview, WA | 2019 |
| Bret Olsen, CADC I | 1013331065 | Addiction (Substance Use Disorder) Counselor | Wilsonville, OR | 2014 |
| Brian Olsen | 1073967071 | Marriage & Family Therapist | Costa Mesa, CA | 2016 |
| Brian Olsen, CSW | 1336935592 | Clinical Social Worker | Syracuse, UT | 2025 |
| Brian Olsen, D.D.S | 1457344566 | General Practice Dentistry | Montezuma Creek, UT | 2005 |
| Brian Olsen, PH.D. | 1487060687 | Clinical Child & Adolescent Psychologist | Gainesville, FL | 2014 |
| Brian Olsen, MD | 1710079215 | Anatomic Pathology & Clinical Pathology Physician | Lansing, MI | 2006 |
| Brian Olsen, M.D. | 1760510572 | Pediatric Critical Care Medicine Physician | Kansas City, MO | 2007 |
| Brian Olsen, A.S.W. | 1831430339 | Clinical Social Worker | Long Beach, CA | 2013 |
| Briana Olsen, LMT | 1114440732 | Massage Therapist | Pickerington, OH | 2017 |
| Briana Olsen, LPC | 1205311248 | Mental Health Counselor | Hoffman Estates, IL | 2018 |
| Brianna Olsen, RDN | 1396695169 | Registered Dietitian | Saint George, UT | 2026 |
| Bridget Olsen, MD | 1447235270 | Pediatric Adolescent Medicine Physician | Nashua, NH | 2005 |
| Bridget Olsen, MD, MPH | 1891371696 | Student in an Organized Health Care Education/Training Program | Portland, ME | 2021 |
| Bridgette Olsen, M. ED., BCBA, LBA | 1528545878 | Behavior Analyst | Spokane, WA | 2018 |
| Britta Olsen | 1740651702 | Social Worker | Layton, UT | 2015 |
| Brittany Olsen, M.D. | 1033572235 | Orthopaedic Surgery Physician | West Nyack, NY | 2016 |
| Brittany Olsen, MA, MFT | 1225169907 | Mental Health Counselor | San Francisco, CA | 2007 |
| Brittany Olsen, M.ED. | 1689175788 | Behavior Analyst | San Francisco, CA | 2018 |
| Brittany Olsen | 1861057226 | Behavior Analyst | Reno, NV | 2019 |
| Brittney Olsen, LCMHC | 1366942880 | Mental Health Counselor | Clearfield, UT | 2018 |
| Brittney Olsen | 1619791803 | Behavior Technician | Modesto, CA | 2024 |
| Brittny Olsen, MA, LPC, NCC | 1942803762 | Mental Health Counselor | Erie, PA | 2020 |
| Brooke Olsen, D.D.S. | 1063963049 | General Practice Dentistry | Washington, DC | 2016 |
| Brooke Olsen, PH.D, HSPP | 1700971850 | Clinical Psychologist | Lafayette, IN | 2006 |
| Brooklynn Olsen | 1629839659 | Behavior Technician | Alma, MI | 2024 |
| Bryce Olsen, D.O. | 1487034682 | Pediatrics Physician | Tucson, AZ | 2015 |
| Bryce Olsen | 1821623182 | Physical Therapist | Colorado Springs, CO | 2020 |
| Bryn Olsen | 1033091749 | Pediatric Nurse Practitioner | Houston, TX | 2025 |
| Buckley Olsen | 1114873221 | Clinical Social Worker | Statesville, NC | 2026 |
| Byron Olsen | 1790114452 | Behavior Analyst | Bellevue, NE | 2013 |
| Cady Olsen | 1497347108 | Rehabilitation Practitioner | Las Vegas, NV | 2021 |
| Caelum Olsen | 1285358077 | Behavior Technician | San Bruno, CA | 2022 |
| Caitlin Olsen, MS | 1366923799 | Marriage & Family Therapist | Auburn, CA | 2018 |
| Caitlin Olsen | 1609265636 | Mental Health Counselor | Westampton, NJ | 2015 |
| Caitlin Olsen, NP | 1669750378 | Psychiatric/Mental Health Nurse Practitioner | Marlborough, MA | 2011 |
| Callysta Olsen | 1114787736 | Behavior Technician | Salt Lake City, UT | 2024 |
| Camber Olsen, LICSW | 1588186209 | Clinical Social Worker | Stratham, NH | 2017 |
| Cameron Olsen, DO | 1285252973 | Internal Medicine Physician | Kirksville, MO | 2020 |
| Cameron Olsen, MD | 1619590536 | Diagnostic Radiology Physician | Stanford, CA | 2020 |
| Camilla Olsen | 1780031096 | Counselor | Manti, UT | 2016 |
| Camille Olsen, M.D. | 1609228600 | Geriatric Medicine (Internal Medicine) Physician | Santa Barbara, CA | 2016 |
| Camryn Olsen, BA | 1174349898 | Behavior Technician | Minnetonka, MN | 2024 |
| Candace Olsen, RN,BSN | 1912254780 | Allergy Physician | West Chester, OH | 2012 |
| Candice Olsen | 1881993764 | Case Manager/Care Coordinator | Orlando, FL | 2011 |
| Candland Olsen, DDS | 1831396340 | Orthodontics and Dentofacial Orthopedics Dentistry | Bountiful, UT | 2007 |
| Cara Olsen, DC | 1376553479 | Chiropractor | Vancouver, WA | 2006 |
| Cara Olsen | 1700079746 | Physical Therapist | Rockland, ME | 2007 |
| Cari Olsen, AUDIOLOGIST | 1033425046 | Audiologist | Charlotte, NC | 2010 |
| Cari Olsen | 1700590163 | Mental Health Counselor | Eugene, OR | 2023 |
| Carla Olsen, MD | 1659404424 | Preventive Medicine/Occupational Environmental Medicine Physician | Salt Lake City, UT | 2007 |
| Carley Olsen, NNP-BC | 1982487724 | Neonatal Nurse Practitioner | Chicago, IL | 2023 |
| Carli Olsen | 1609308931 | Community Health Worker | Salt Lake City, UT | 2017 |
| Carly Olsen | 1558160150 | Behavior Technician | Westlake Village, CA | 2025 |
| Carol Olsen, PH.D | 1033188388 | Clinical Psychologist | Jacksonville, FL | 2006 |
| Caroline Olsen, PA | 1669739066 | Physician Assistant | Pasadena, TX | 2012 |
| Carollyn Olsen, REGISTERED NURSE | 1588939359 | Registered Nurse | Staten Island, NY | 2012 |
| Carolyn Olsen, LCSW | 1265193387 | Clinical Social Worker | Marietta, GA | 2022 |
| Caryn Olsen, LICSW | 1245187970 | Social Worker | Minneapolis, MN | 2026 |
| Casey Olsen, MPT, CSCS | 1609059401 | Physical Therapist | Santa Cruz, CA | 2007 |
| Casey Olsen, DPT | 1790374007 | Physical Therapist | Evansville, IN | 2021 |
| Casie Olsen | 1477413474 | School Psychologist | Grand Island, NE | 2025 |
| Cassandra Olsen | 1225425788 | Social Worker | Mount Vernon, WA | 2015 |
| Cassandra Olsen | 1316662539 | Behavior Technician | Independence, MO | 2022 |
| Cassandra Olsen, MS, RD, LD | 1386225167 | Registered Dietitian | Kingwood, TX | 2021 |
| Cassandra Olsen | 1528996626 | Behavior Technician | Austin, MN | 2026 |
| Cassandra Olsen | 1821915422 | Student in an Organized Health Care Education/Training Program | Cooperstown, NY | 2026 |
| Cassidy Olsen | 1306528385 | Behavior Technician | Auburn Hills, MI | 2023 |
| Catherine Olsen, LMSW | 1487175329 | Social Worker | New York, NY | 2017 |
| Catherine Olsen, RN | 1568795011 | Psychiatric/Mental Health Registered Nurse | Garden City, NY | 2009 |
| Catherine Olsen, D.O. | 1811062235 | Obstetrics & Gynecology Physician | Rockwall, TX | 2006 |
| Catrina Olsen | 1104467364 | Case Manager/Care Coordinator | Garfield Heights, OH | 2019 |
| Chad Olsen, M.D. | 1073646477 | Pediatrics Physician | Naperville, IL | 2007 |
| Chad Olsen, FNP | 1275121733 | Family Nurse Practitioner | Flat Rock, NC | 2021 |
| Chance Olsen, AA | 1598588428 | Anesthesiologist Assistant | Santa Fe, NM | 2024 |
| Chandler Olsen | 1841915576 | Behavior Technician | San Diego, CA | 2022 |
| Charles Olsen, D.M.D. | 1043547045 | General Practice Dentistry | Park Ridge, NJ | 2009 |
| Charles Olsen, NP | 1053795518 | Psychiatric/Mental Health Registered Nurse | Crossville, TN | 2015 |
| Charles Olsen, PT | 1063421097 | Physical Therapist | Bethesda, MD | 2006 |
| Charles Olsen, MD | 1730304312 | Psychiatry Physician | Potomac, MD | 2007 |
| Charles Olsen, DO | 1821007451 | Family Medicine Physician | Gladstone, MI | 2006 |
| Chelsea Olsen | 1740127745 | Student in an Organized Health Care Education/Training Program | Pittsburgh, PA | 2026 |
| Chloe Olsen | 1457022667 | Behavior Technician | Holyoke, MA | 2021 |
| Chloe Olsen, LCSW | 1750139135 | Mental Health Counselor | Hyrum, UT | 2024 |
| Christian Olsen | 1124912357 | Student in an Organized Health Care Education/Training Program | Pomona, CA | 2025 |
| Christie Olsen, FOUNDER-NURSE PRACTI | 1285752477 | Obstetrics & Gynecology Nurse Practitioner | Madison, WI | 2007 |
| Christina Olsen, NP | 1538684543 | Critical Care Neonatal Nurse Practitioner | Colorado Springs, CO | 2017 |
| Christina Olsen | 1548126139 | Community Health Worker | Cheyenne, WY | 2025 |
| Christina Olsen | 1952182198 | Clinical Social Worker | Nevada City, CA | 2023 |
| Christine Olsen, MD | 1124174743 | Radiation Oncology Physician | Newton, MA | 2007 |
| Christine Olsen, PHD, CD(DONA), ICCE | 1417288077 | Doula | Corvallis, OR | 2010 |
| Christine Olsen | 1457116592 | Behavior Technician | Virginia Beach, VA | 2024 |
| Christine Olsen | 1649535386 | Physical Therapist | Federal Way, WA | 2012 |
| Christine Olsen, LPN | 1689720997 | Licensed Practical Nurse | Milwaukee, WI | 2007 |
| Christopher Olsen, DPM | 1114719390 | Student in an Organized Health Care Education/Training Program | Minneapolis, MN | 2025 |
| Christopher Olsen, L.M.H.C. | 1124231048 | Mental Health Counselor | Seattle, WA | 2007 |
| Christopher Olsen, ARNP | 1235642661 | Acute Care Nurse Practitioner | Atlantic, IA | 2017 |
| Christopher Olsen, D.D.S. | 1326422817 | Dentist | Truman, MN | 2015 |
| Christopher Olsen, DO | 1396308805 | Family Medicine Physician | Hardy, VA | 2019 |
| Christopher Olsen, DDS | 1427543784 | General Practice Dentistry | North Pole, AK | 2018 |
| Christopher Olsen | 1467943597 | General Practice Dentistry | Columbia, SC | 2018 |
| Christopher Olsen, PT | 1649236886 | Orthopedic Physical Therapist | Temple Terrace, FL | 2006 |
| Christopher Olsen, DPT | 1891007480 | Physical Therapist | Forest Park, IL | 2010 |
| Christopher Olsen | 1912840901 | Marriage & Family Therapist | Minneapolis, MN | 2026 |
| Christy Olsen | 1659666162 | Licensed Psychiatric Technician | Oxnard, CA | 2011 |
| Cindy Olsen, M.S., LMHC | 1205007192 | Mental Health Counselor | Guttenberg, IA | 2008 |
| Cindy Jo Olsen, M.S. | 1417366238 | Professional Counselor | Wolcott, CT | 2014 |
| Claire Olsen, LCSW | 1245607944 | Clinical Social Worker | Lake Grove, NY | 2015 |
| Clara Olsen | 1093241325 | Behavior Analyst | Erie, PA | 2017 |
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).