Providers Kaleena Siers to Lou Sievers, D.M.D.
300 individual NPIs in the federal registry, part 20,181 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. 83 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Kaleena Siers | 1225806243 | Social Worker | Cleveland, OH | 2023 |
| Kenneth Siers, LCSW | 1205911492 | Clinical Social Worker | Los Angeles, CA | 2006 |
| Keylee Siers, PTA | 1114511078 | Physical Therapy Assistant | McAlester, OK | 2021 |
| Kristen Siers, MA | 1912714882 | Counselor | Morgantown, WV | 2024 |
| Lara Siers, LPC | 1952867566 | Professional Counselor | Phoenix, AZ | 2019 |
| Latina Siers, PHD, LP | 1588614499 | Clinical Psychologist | Duluth, MN | 2006 |
| Lauren Siers, DPT, ATC | 1235527425 | Physical Therapist | Weston, WV | 2014 |
| Mildred Siers, CNP | 1154620029 | Family Nurse Practitioner | Columbus, OH | 2011 |
| Rebekah Siers, RBT | 1720820400 | Behavior Technician | Mt Juliet, TN | 2024 |
| Paula Siers-Burns | 1275943532 | Clinical Social Worker | Mc Murray, PA | 2014 |
| Amy Sierschula, LSW | 1073152328 | Social Worker | Cincinnati, OH | 2020 |
| Jessica Sierschula, MA, CCC-SLP | 1205110160 | Speech-Language Pathologist | Centerville, OH | 2011 |
| Lora Sierschula | 1720498173 | Speech-Language Pathologist | Hilliard, OH | 2014 |
| Michelle Sierschula, CDCA PRELIMINARY | 1285427872 | Addiction (Substance Use Disorder) Counselor | Dayton, OH | 2025 |
| Steven Sierschula, DDS | 1659478097 | General Practice Dentistry | Kettering, OH | 2006 |
| Petia Sierschynski | 1164255170 | Mental Health Counselor | Lakewood, WA | 2024 |
| Alison Siersdale, LICSW | 1831776236 | Clinical Social Worker | Watertown, MA | 2021 |
| Blake Siersema, PT, DPT | 1588361992 | Physical Therapist | Simpsonville, SC | 2023 |
| Susan Siersha, MS, CCC-SLP | 1447997580 | Speech-Language Pathologist | Dearborn, MI | 2022 |
| George Siersma, DDS MS | 1669582631 | Orthodontics and Dentofacial Orthopedics Dentistry | Aurora, CO | 2006 |
| Peter Siersma, MD | 1730148149 | Internal Medicine Physician | Williamsburg, MA | 2006 |
| Richard Siersma, PA | 1942715768 | Physician Assistant | Anchorage, AK | 2017 |
| Paul Sierszulski, DO | 1063902542 | Internal Medicine Physician | Lumberton, NC | 2018 |
| Robert Sierszulski, D.C. | 1437326790 | Chiropractor | Wheaton, IL | 2008 |
| Kaela Siert | 1942194758 | Student in an Organized Health Care Education/Training Program | Littleton, CO | 2025 |
| Shannon Siert, PT | 1780333435 | Physical Therapist | Vancouver, WA | 2022 |
| Rebecca Sieruga, AU.D. | 1568194892 | Audiologist | Riverside, CA | 2022 |
| Angelika Sieruta | 1104789098 | Physical Therapist | Newark, NJ | 2025 |
| Perla Sieruta | 1821891698 | Interpreter | Wallington, NJ | 2025 |
| Jessica Marie Siervo | 1760245682 | Pharmacist | Glastonbury, CT | 2024 |
| Mario Siervo, M.D. | 1881800357 | Family Medicine Physician | Miami, FL | 2007 |
| Crisrina Siervo-Lubian, PHD | 1922578459 | Clinical Psychologist | Sterling, VA | 2018 |
| Wendy Siervogel, RN | 1245829332 | Registered Nurse | Vandalia, OH | 2021 |
| Amy Sierz | 1699341313 | Pharmacy Technician | Rockford, MI | 2021 |
| Brietney Sierzant, PA | 1518236736 | Physician Assistant | Muskegon, MI | 2011 |
| Charles Sierzant, M.D. | 1457765539 | Emergency Medicine Physician | Grand Rapids, MI | 2014 |
| Teresa Sierzant, CNS, APRN-BC | 1285780411 | Clinical Nurse Specialist | Saint Paul, MN | 2007 |
| Brandon Sierzega | 1982463907 | Behavior Technician | Charlotte, NC | 2024 |
| Devon Sierzega, ATC | 1528522166 | Athletic Trainer | Media, PA | 2019 |
| Dorota Sierzega | 1477407591 | General Practice Registered Nurse | Plainview, NY | 2026 |
| Elizabeth Sierzega | 1629520994 | Registered Dietitian | Woodbury, NJ | 2016 |
| Jacqueline Sierzega, PSYD | 1952896755 | Clinical Psychologist | Wheaton, IL | 2018 |
| Janet Sierzega, LCSW | 1770989766 | Clinical Social Worker | Perth Amboy, NJ | 2014 |
| Joseph Sierzega, MS, VATL, ATC, CSCS | 1972737880 | Athletic Trainer | Fairfax, VA | 2009 |
| Kayla Sierzega, PT, DPT | 1568163483 | Physical Therapist | Lockport, IL | 2023 |
| Kristi Sierzega, LCSW, CADC | 1821515503 | Clinical Social Worker | Herrin, IL | 2017 |
| Matthew Sierzega, ATC, LAT, MS | 1043043094 | Athletic Trainer | Johnsburg, IL | 2024 |
| Michelle Sierzega, PSYD | 1760015424 | Clinical Psychologist | Northbrook, IL | 2020 |
| Patric Sierzega, P.A.-C | 1104166214 | Medical Physician Assistant | Phoenix, AZ | 2013 |
| Richard Sierzega, ATC | 1164832051 | Athletic Trainer | Mountainside, NJ | 2014 |
| Teresa Sierzega Sowa | 1366155376 | Day Training/Habilitation Specialist | Anchorage, AK | 2023 |
| Jessica Sierzenga | 1881330116 | Speech-Language Pathologist | Plymouth, MI | 2022 |
| Rebecca Sierzenga | 1699486696 | Behavior Technician | Plymouth, MI | 2022 |
| Paul Sierzenski, MD | 1487632303 | Emergency Medicine Physician | Newark, DE | 2006 |
| Ronald Sierzenski, M.D. | 1861428633 | Emergency Medicine Physician | Chandler, AZ | 2006 |
| Claudia Sierzputowski, PA-C | 1316864218 | Physician Assistant | Riverdale, NJ | 2026 |
| Sharon Sierzputowski, P.A.C. | 1417974197 | Physician Assistant | Petoskey, MI | 2006 |
| Beth Sies, M.S., CCC-SLP | 1427575612 | Speech-Language Pathologist | Gillespie, IL | 2017 |
| Jared Sies, OD | 1669236204 | Optometrist | Lubbock, TX | 2024 |
| Matthew Sies, M.D. | 1518171826 | Preventive Medicine/Occupational Environmental Medicine Physician | Los Angeles, CA | 2007 |
| Alicia Siese | 1700470440 | Marriage & Family Therapist | Campbell, CA | 2021 |
| Stacey Siese, NP | 1669092367 | Nurse Practitioner | N Las Vegas, NV | 2020 |
| Aleesha Siesel, PA-C | 1588430151 | Physician Assistant | Columbus, OH | 2023 |
| Craig Siesel, M.D. | 1851825848 | Orthopaedic Surgery Physician | Hudson, OH | 2017 |
| David Siesel, CRNA | 1528511219 | Certified Registered Nurse Anesthetist | Marysville, CA | 2016 |
| Eric Siesel | 1528053683 | Optometrist | Sault Sainte Marie, MI | 2005 |
| Geoffrey Siesel, M.D. | 1801116744 | Diagnostic Radiology Physician | Columbus, OH | 2010 |
| Isabella Siesel | 1760377048 | Student in an Organized Health Care Education/Training Program | Atlanta, GA | 2025 |
| Jamie Siesel, D.O. | 1447614219 | Emergency Medicine Physician | Kettering, OH | 2016 |
| Kaitlyn Siesel | 1356899389 | Certified Registered Nurse Anesthetist | Greeley, CO | 2016 |
| Kathy Siesel, D.P.M. | 1124024328 | Podiatrist | Cleveland, OH | 2005 |
| Kevin Siesel, LAT, ATC | 1083340046 | Athletic Trainer | Raleigh, NC | 2022 |
| Mary Siesel, RN | 1972719441 | Registered Nurse | Bloomville, OH | 2007 |
| Nichole Siesel, MSW, LSW | 1770209850 | Clinical Social Worker | Sandusky, OH | 2022 |
| Tara Siesel, ATC | 1215697222 | Athletic Trainer | Durham, NC | 2021 |
| William Siesel, PT | 1124404918 | Specialist | Saint Petersburg, FL | 2015 |
| Eric Siesener | 1568952067 | Orthopedic Physical Therapist | Arnold, MO | 2018 |
| Monica Siesener, APRN | 1720316169 | Critical Care Neonatal Nurse Practitioner | Saint Louis, MO | 2009 |
| Nathan Siesener, MD | 1295239804 | Diagnostic Radiology Physician | Belleville, IL | 2018 |
| Andrew Siesennop, M.D. | 1508987009 | Pediatrics Physician | Boston, MA | 2007 |
| Erika Siesennop, RD, LDN | 1386065654 | Registered Dietitian | Chicago, IL | 2014 |
| Corrine Sieser | 1437697042 | Student in an Organized Health Care Education/Training Program | Deep River, CT | 2017 |
| Thomas Siesholtz, M.D. | 1578545349 | Hematology & Oncology Physician | Sellersville, PA | 2005 |
| Gina Siesing, MSS, LSW | 1699591784 | Social Worker | Haverford, PA | 2024 |
| Amanda Siess, MT-BC | 1831738715 | Music Therapist | Alburtis, PA | 2019 |
| Benjamin Siess, LPC | 1245806900 | Professional Counselor | Oklahoma City, OK | 2021 |
| Brandilynn Siess, RPH | 1649871237 | Pharmacist | Sullivan, MO | 2020 |
| Clifton Siess, D.C. | 1861457749 | Chiropractor | Cranberry Township, PA | 2006 |
| Jennifer Siess | 1588243364 | Inpatient Obstetric Registered Nurse | Gallup, NM | 2021 |
| Jessica Siess | 1033831946 | School Registered Nurse | Commack, NY | 2022 |
| Kathleen Siess | 1831444660 | Speech-Language Pathologist | Gardena, CA | 2012 |
| Kimberly Siess, MS, OTR/L | 1881244556 | Pediatric Occupational Therapist | Brooklyn, NY | 2019 |
| Vale Siess | 1649806829 | Clinical Social Worker | Pasadena, CA | 2020 |
| Suzanne Siess-Manfre, PTA | 1548562176 | Physical Therapy Assistant | Franklin Square, NY | 2010 |
| Romy Siess-Tota, ED.D. | 1922396662 | Professional Counselor | Lahaska, PA | 2011 |
| Sarah Siessel | 1518787894 | Family Nurse Practitioner | Denville, NJ | 2024 |
| Emily Siesser, REGISTERED NURSE | 1679279061 | Case Management Registered Nurse | Spokane, WA | 2023 |
| Lori Siesto, MT-BC | 1750754156 | Music Therapist | Central Islip, NY | 2015 |
| Jana Sieswerda, LIC.AC. | 1184945099 | Acupuncturist | Millis, MA | 2010 |
| Jayme Siet, OTR | 1427475532 | Occupational Therapist | Durango, CO | 2014 |
| Kiersten Siet | 1679403299 | Home Health Aide | Toledo, OH | 2026 |
| Wendy Siet, PT, DPT | 1609058031 | Physical Therapist | Ashland, MA | 2007 |
| Tiara Sietas | 1225995475 | Physician Assistant | Jamaica, NY | 2026 |
| Cynthia Siete Ramirez | 1538934443 | Behavior Technician | Farmington Hills, MI | 2023 |
| Jessica Sieters-Martinez | 1093276362 | Behavior Technician | Albuquerque, NM | 2019 |
| Julia Sieth, MD | 1376034751 | Family Medicine Physician | Phenix City, AL | 2018 |
| Samantha Sieth, MSW, PPSC/CWA | 1629580170 | Social Worker | San Carlos, CA | 2017 |
| Maridela Siethoff | 1174279087 | Health & Wellness Coach | Broomfield, CO | 2022 |
| Richard Sieting | 1538790035 | Home Health Registered Nurse | Grandville, MI | 2020 |
| Mary Sietins, RPH | 1588260681 | Pharmacist | N Attleboro, MA | 2020 |
| Darlene Sietman, L.P.N | 1730418955 | Licensed Practical Nurse | Ashtabula, OH | 2009 |
| Paul Sietmann, O.D. | 1558356162 | Optometrist | Frisco, TX | 2005 |
| Cynthia Sieto, PA-C | 1518963487 | Medical Physician Assistant | Allentown, PA | 2005 |
| Teresa Sieto, LMFT | 1225717192 | Marriage & Family Therapist | San Diego, CA | 2023 |
| Katherine Sietos | 1972942274 | Massage Therapist | Denver, CO | 2013 |
| Kalee Siets | 1669098125 | Behavior Analyst | Riverside, CA | 2020 |
| Korie Siets | 1063028900 | Behavior Technician | Yucaipa, CA | 2020 |
| Carissa Sietsema | 1689229759 | Clinical Social Worker | Williamson, WV | 2019 |
| Casey Sietsema, P.A. | 1689000903 | Physician Assistant | Zeeland, MI | 2013 |
| Ethen Sietsema, LPCC | 1427719467 | Professional Counselor | Minneapolis, MN | 2022 |
| Eva Sietsema, ARNP | 1831438944 | Family Nurse Practitioner | Tucson, AZ | 2013 |
| Kathy Sietsema, M.D. | 1053322032 | Pulmonary Disease Physician | Torrance, CA | 2006 |
| Kendra Sietsema, D.C. | 1528499050 | Chiropractor | Encinitas, CA | 2013 |
| Madison Sietsema, PTA | 1972076479 | Physical Therapy Assistant | Pleasant Hill, TN | 2019 |
| Sarah Sietsema, MS, CCC-SLP | 1760647358 | Speech-Language Pathologist | New York, NY | 2008 |
| Zachary Sietsema, LPC | 1598477192 | Counselor | Grand Rapids, MI | 2022 |
| Alexandra Sietsma | 1932522778 | Psychiatric/Mental Health Nurse Practitioner | San Diego, CA | 2014 |
| Gabrielle Sietsma, BCBA | 1780255232 | Behavior Analyst | North Haledon, NJ | 2021 |
| Alex Sietstra | 1982010591 | Student in an Organized Health Care Education/Training Program | Sheldon, IA | 2014 |
| Philip Sietstra, OD | 1376544833 | Optometrist | Sioux Falls, SD | 2005 |
| Jennifer Siettmann, MS CGC | 1407211121 | Genetic Counselor (M.S.) | Phoenix, AZ | 2015 |
| Destinee Sietz | 1295615193 | Behavior Technician | Lakewood, WA | 2025 |
| Anthony Sieu | 1205499753 | Pharmacist | San Jose, CA | 2019 |
| Katherine Sieu, RN, NP | 1356591085 | Adult Health Nurse Practitioner | Walnut Creek, CA | 2008 |
| Linda Sieu, PA-C | 1689652802 | Surgical Physician Assistant | Everett, WA | 2006 |
| Tony Sieu, DDS | 1003940446 | General Practice Dentistry | Redmond, WA | 2007 |
| Caryn Sieunarine, FNP-BC | 1497372049 | Family Nurse Practitioner | Ozone Park, NY | 2020 |
| Vanessa Sieunarine | 1205552593 | Behavior Analyst | West Palm Beach, FL | 2022 |
| Geoffrey Sieux, PHARMD | 1528470101 | Pharmacist | South Lake Tahoe, CA | 2014 |
| Alana Siev | 1811459639 | Student in an Organized Health Care Education/Training Program | Bronx, NY | 2019 |
| Angelina Siev, DO | 1285377325 | Emergency Medicine Physician | East Meadow, NY | 2022 |
| Anh Siev | 1508595836 | Behavior Technician | Lakewood, WA | 2022 |
| Daniel Siev | 1467881359 | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | San Diego, CA | 2013 |
| Elissa Siev, OTR/L | 1750801163 | Occupational Therapist | Teaneck, NJ | 2017 |
| Ethan Siev, MD | 1154360485 | Cardiovascular Disease Physician | Hollywood, FL | 2006 |
| Genevieve Siev | 1376484998 | Behavior Technician | Brookfield, WI | 2026 |
| Jedidiah Siev, PH.D. | 1174784177 | Clinical Psychologist | Bryn Mawr, PA | 2008 |
| Joel Siev, MD | 1386641348 | Pediatrics Physician | Huntington Station, NY | 2005 |
| Michael Siev, MD | 1093161895 | Urology Physician | New Haven, CT | 2016 |
| Michelle Siev, LLPC | 1184029860 | Professional Counselor | Macomb, MI | 2014 |
| Moshe Siev, M. D. | 1760410062 | Pediatrics Physician | New Haven, CT | 2006 |
| Nathaniel Siev, MD | 1023515269 | Anesthesiology Physician | Tacoma, WA | 2018 |
| Noam Siev, M.D. | 1780047175 | Anesthesiology Physician | Livingston, NJ | 2016 |
| Robert Siev, RPH | 1043816945 | Pharmacist | Aberdeen, NJ | 2020 |
| Sheldon Siev, R.PH. | 1922330133 | Pharmacist | Parlin, NJ | 2010 |
| Amanda Sieve, PA-C | 1972098150 | Physician Assistant | West Des Moines, IA | 2018 |
| Ana Sieve, LMFT | 1821470261 | Marriage & Family Therapist | Fresno, CA | 2015 |
| Aubrey Sieve, MD | 1154021491 | Physical Medicine & Rehabilitation Physician | Madison, WI | 2023 |
| Brian Sieve, CASE MANG | 1679233803 | Case Manager/Care Coordinator | Sunland Park, NM | 2021 |
| Briana Sieve | 1649820085 | Athletic Trainer | New Ulm, MN | 2019 |
| Christyn Sieve, PSY, D. | 1578607743 | Psychologist | Portsmouth, NH | 2007 |
| Jane Sieve | 1568851814 | Clinical Social Worker | Waconia, MN | 2015 |
| Jesse Sieve, LCMFT | 1427268432 | Marriage & Family Therapist | Kansas City, MO | 2007 |
| Lawrence Sieve, O.D. | 1225443732 | Optometrist | Santa Ana, CA | 2014 |
| Mary Sieve | 1245121086 | Pharmacist | Sioux Falls, SD | 2025 |
| Olivia Sieve, DO | 1710628797 | Adult Medicine Physician | Osage Beach, MO | 2022 |
| Paula Sieve, D.C. | 1538403076 | Chiropractor | Minneapolis, MN | 2012 |
| Paula Sieve | 1730246679 | Physical Therapist | Weldon Spring, MO | 2007 |
| Richard Sieve, M. D. | 1700982394 | Obstetrics & Gynecology Physician | San Jose, CA | 2006 |
| Robert Sieve, DC | 1790968063 | Chiropractor | Willard, MO | 2007 |
| Ronald Sieve, PHARMD. | 1053063578 | Pharmacist | Rochester, MN | 2022 |
| Ryan Sieve, M.D. | 1851734412 | Diagnostic Radiology Physician | Cincinnati, OH | 2013 |
| Danielle Sievek | 1487365045 | Acute Care Nurse Practitioner | Saint Cloud, MN | 2022 |
| Cora Bethane Sieveka, LGSW | 1386617207 | Mental Health Counselor | Lexington Park, MD | 2006 |
| Ann Sieveke, MS OTR | 1295017952 | Pediatric Occupational Therapist | Louisville, CO | 2011 |
| James Sieveke, P.T. | 1134257611 | Physical Therapist | Tucson, AZ | 2007 |
| Payton Sieveke | 1649843533 | Behavior Technician | Saginaw, MI | 2021 |
| Stephanie Sieveke | 1386341949 | Marriage & Family Therapist | Oakland, CA | 2023 |
| Kathy Sieveking, PSY.D., LP | 1942646260 | Clinical Psychologist | Saint Peter, MN | 2013 |
| Nicholas Sieveking, PHD | 1134475668 | Clinical Psychologist | Nashville, TN | 2012 |
| Nicholas Sieveking, MD | 1548250434 | Specialist | Nashville, TN | 2005 |
| Monica Sievel, LPC | 1730544206 | Professional Counselor | Newtown, CT | 2015 |
| Julie Sievenpiper, LCSW | 1679773733 | Clinical Social Worker | Benicia, CA | 2007 |
| Wendy Sievenpiper, D.D.S. | 1407977325 | Dentist | Buffalo, NY | 2007 |
| Deborah Sievens, PH.D. | 1982748000 | School Psychologist | Ponce, PR | 2007 |
| Otto Sievens | 1730656489 | Social Worker | Gurnee, IL | 2018 |
| Elaine Sievens-Figueroa, LDN | 1992895023 | Nutrition Education Nutritionist | Ponce, PR | 2006 |
| Amanda Siever, APRN | 1376088013 | Family Nurse Practitioner | Kansas City, MO | 2017 |
| Ashley Siever | 1275145617 | Personal Care Attendant | Franklin, WV | 2020 |
| Beth Siever, NP | 1306975495 | Pediatric Hematology & Oncology Physician | Washington, DC | 2007 |
| Cynthia Siever, IBCLC | 1376934968 | Lactation Consultant (Non-RN) | Galesburg, IL | 2015 |
| Dianna Siever, RBT | 1275231664 | Behavior Technician | Front Royal, VA | 2023 |
| Jana Siever, M.S. CCC-SLP | 1376736843 | Speech-Language Pathologist | Coral Springs, FL | 2007 |
| John Siever, DDS | 1275778656 | Dentist | Redlands, CA | 2008 |
| John Siever, M.D. | 1538118781 | Pulmonary Disease Physician | Phoenix, AZ | 2006 |
| Katherine Siever, P.A. - C | 1619171220 | Physician Assistant | Salem, VA | 2007 |
| Kelsey Siever | 1447757729 | Social Worker | Sacaton, AZ | 2018 |
| Kita Siever | 1285518571 | Behavior Technician | Raleigh, NC | 2025 |
| Mackenzie Siever, LSCSW | 1194477851 | Clinical Social Worker | Wichita, KS | 2022 |
| Marylee Siever, DPT | 1528666286 | Physical Therapist | Winchester, VA | 2020 |
| Nancy Siever, MA, PSYCHOTHERAPIST | 1285884221 | Professional Counselor | Colorado Springs, CO | 2008 |
| Kara Sieverdes, M.D. | 1801096615 | Psychiatry Physician | Columbia, SC | 2007 |
| Debra Sieverding | 1356204978 | Registered Nurse | Dubuque, IA | 2025 |
| Erica Sieverding, PA-C | 1780293811 | Physician Assistant | Milwaukee, WI | 2020 |
| Gregory Sieverding, ACNPC-AG | 1376275420 | Acute Care Nurse Practitioner | Columbia, SC | 2022 |
| John Sieverding, MD | 1497716328 | Pediatrics Physician | Poughkeepsie, NY | 2006 |
| Lisa Sieverding | 1396229233 | Speech-Language Pathologist | Madison, IN | 2018 |
| Matthew Sieverding | 1184288276 | General Practice Dentistry | Cedar Rapids, IA | 2019 |
| Denise Sievering | 1356478929 | Registered Dietitian | San Diego, CA | 2007 |
| Jeffrey Sievering, PA-C, MMS | 1831253517 | Physician Assistant | Somers, CT | 2006 |
| Laura Sievering, PA-C | 1669437000 | Medical Physician Assistant | Glastonbury, CT | 2006 |
| Samantha Sievering, LCSW-C | 1043063647 | Clinical Social Worker | Washington, DC | 2024 |
| Katie Sievering-Cornett | 1114852381 | Behavior Technician | Dayton, OH | 2026 |
| Alina Sievers, PA-C | 1861959306 | Physician Assistant | Rochester, MN | 2019 |
| Alison Sievers | 1639069339 | Counselor | Everett, WA | 2025 |
| Amanda Sievers | 1659099315 | Case Manager/Care Coordinator | Hood River, OR | 2022 |
| Amy Sievers, CRNA | 1043550205 | Certified Registered Nurse Anesthetist | Bethlehem, PA | 2013 |
| Amy Sievers, RN | 1558582478 | Registered Nurse | Austin, TX | 2007 |
| Angelica Sievers, MA | 1295499770 | Clinical Social Worker | Inglewood, CA | 2021 |
| Ashley Sievers, MD | 1699905489 | Emergency Medicine Physician | Rochester, MN | 2009 |
| Betty Sievers | 1477941896 | Speech-Language Pathologist | Hemet, CA | 2015 |
| Brad Sievers, PSYD | 1235017021 | Clinical Psychologist | Johnston, IA | 2025 |
| Bradley Sievers, PHARMD | 1447854070 | Pharmacist | Liberty, MO | 2020 |
| Brandon Sievers, M.D. | 1184068389 | Family Medicine Physician | Santa Ana, CA | 2013 |
| Brandy Sievers, BSN, RN | 1083315253 | Registered Nurse | Evansville, IN | 2023 |
| Bree Sievers, RN, IBCLC | 1811734684 | Lactation Consultant (Registered Nurse) | Seattle, WA | 2024 |
| Brittany Sievers, PSYCHOLOGIST | 1720710205 | Psychologist | Austin, TX | 2022 |
| Brooklyn Sievers | 1710724059 | Behavior Technician | Orange, CA | 2024 |
| Carol Sievers | 1891287074 | Nutrition Education Nutritionist | Alton, IL | 2018 |
| Casey Sievers, OTR/L, CLT | 1497252746 | Occupational Therapist | Great Falls, MT | 2018 |
| Caylin Sievers | 1164238135 | Athletic Trainer | Fort Wayne, IN | 2024 |
| Chad Sievers | 1467935635 | Physician Assistant | Great Falls, MT | 2018 |
| Chelsie Sievers, MD, PHD | 1134709108 | Student in an Organized Health Care Education/Training Program | Nashville, TN | 2021 |
| Christina Sievers, CRNA | 1508039652 | Certified Registered Nurse Anesthetist | Fort Pierce, FL | 2008 |
| Christopher Sievers, DDS | 1609460989 | General Practice Dentistry | Columbia, SC | 2021 |
| Cole Sievers, MD | 1295396091 | Anesthesiology Physician | Omaha, NE | 2019 |
| Corey Sievers, MD | 1922217835 | Gastroenterology Physician | Hudson, OH | 2007 |
| Courtney Sievers, M.ED., BCBA | 1053793372 | Behavior Analyst | Atlanta, GA | 2015 |
| Danette Sievers | 1174340079 | Behavior Technician | Southfield, MI | 2024 |
| Daniel Sievers, LCSW | 1578540878 | Clinical Social Worker | Vincennes, IN | 2005 |
| Daniel Sievers, PHARMD | 1750141958 | Pharmacist | Waldwick, NJ | 2024 |
| Daria Sievers, LCSW | 1407291859 | Clinical Social Worker | San Rafael, CA | 2013 |
| David Sievers, M.D. | 1457476780 | Surgery Physician | Tarzana, CA | 2007 |
| David Sievers, LMHC | 1467639401 | Mental Health Counselor | Clinton, IA | 2008 |
| Delaina Sievers, PA-C | 1699818252 | Physician Assistant | Sioux Falls, SD | 2007 |
| Dennis Sievers | 1447872080 | Student in an Organized Health Care Education/Training Program | Pasadena, CA | 2020 |
| Devon Sievers | 1255125654 | Optometrist | Columbia, MO | 2025 |
| Douglas Sievers | 1467028522 | Physician Assistant | Lexington, KY | 2021 |
| Elise Sievers, M.ED | 1891200978 | Behavior Analyst | Saint Peters, MO | 2017 |
| Elizabeth Sievers | 1225834468 | Behavior Technician | Valparaiso, IN | 2025 |
| Emily Sievers | 1700618360 | Social Worker | Blue Ash, OH | 2024 |
| Emma Sievers, RBT | 1629950332 | Behavior Technician | Vincennes, IN | 2025 |
| Eric Sievers | 1215897947 | Infectious Diseases Pharmacist | Idaho Falls, ID | 2025 |
| Eric Sievers, M.D. | 1629222427 | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | Jackson, TN | 2008 |
| Eric Sievers, MD | 1659640944 | Pediatric Hematology & Oncology Physician | San Diego, CA | 2011 |
| Eric Sievers, NP | 1811469935 | Nurse Practitioner | Conrad, MT | 2018 |
| Erik Sievers, MSW, LICSW | 1558342519 | Clinical Social Worker | Winona, MN | 2005 |
| Erin Sievers, PA-C | 1518315415 | Physician Assistant | Vincennes, IN | 2016 |
| Erin Sievers | 1780479352 | Mental Health Counselor | Wexford, PA | 2025 |
| Gabrielle Sievers | 1518435569 | Counselor | Seattle, WA | 2018 |
| Gavin Sievers | 1639043375 | Family Nurse Practitioner | Richland, WA | 2025 |
| Gerald Sievers, B.S.R.PH.,M.B.A. | 1598988214 | Pharmacist | Omaha, NE | 2007 |
| Grace Sievers, SLP | 1730205956 | Speech-Language Pathologist | Roselle, IL | 2007 |
| Greg Sievers | 1629351358 | Pharmacist | Vincennes, IN | 2011 |
| Halie Sievers | 1770299158 | Behavior Technician | Temecula, CA | 2023 |
| Harry Sievers, MA, LPC | 1811126659 | Professional Counselor | Flemington, NJ | 2009 |
| Harvey Sievers, MD | 1134178981 | Emergency Medicine Physician | Zionsville, IN | 2006 |
| Heather Sievers, M.S. | 1164726535 | Mental Health Counselor | Littleton, CO | 2010 |
| Jaclyn Sievers | 1558765230 | Pharmacist | North Chicago, IL | 2014 |
| Jake Sievers, DPT | 1447731344 | Physical Therapist | Evanston, IL | 2018 |
| James Sievers, D.C. | 1801010236 | Chiropractor | Pleasanton, CA | 2007 |
| Jamie Sievers, PA-C | 1609318690 | Physician Assistant | Portsmouth, VA | 2016 |
| Jane Sievers, LCSW | 1386621191 | Clinical Social Worker | Jacksonville, FL | 2005 |
| Jenny Sievers, M.S., LIMHP, LADC | 1679781975 | Mental Health Counselor | Lincoln, NE | 2007 |
| Jessica Sievers, OT | 1073371449 | Occupational Therapist | Red Bank, NJ | 2024 |
| Jessika Sievers | 1730775404 | Behavior Technician | Cordova, TN | 2020 |
| Jodi Sievers, MPT | 1467102681 | Physical Therapist | Bonner Springs, KS | 2022 |
| Joel Sievers, MD | 1538103197 | Family Medicine Physician | Portales, NM | 2006 |
| John Sievers, DDS PC | 1558451104 | General Practice Dentistry | Englewood, CO | 2006 |
| John Sievers, PHARMD | 1902143068 | Pharmacist | Weeki Wachee, FL | 2013 |
| Josephine Sievers, RBT | 1548142714 | Behavior Technician | St Petersburg, FL | 2025 |
| Judith Sievers, LMT NMT | 1376741645 | Massage Therapist | Fountain Hills, AZ | 2007 |
| Karen Sievers, PT | 1306899042 | Physical Therapist | Brookings, SD | 2006 |
| Karen Sievers | 1962084335 | Pharmacy Technician | Mill Creek, WA | 2021 |
| Karlynn Sievers, MD | 1558434720 | Family Medicine Physician | Casper, WY | 2006 |
| Kathryn Sievers | 1376980581 | Case Manager/Care Coordinator | Louisville, KY | 2013 |
| Kathryn Sievers, PTA | 1447511837 | Physical Therapy Assistant | Terre Haute, IN | 2012 |
| Kathryn Sievers, PT, MPT | 1982546883 | Physical Therapist | Lincoln, NE | 2026 |
| Keith Sievers, PHARM D | 1962628701 | Pharmacist | Spokane, WA | 2007 |
| Kelly Sievers, PTA | 1487170478 | Physical Therapy Assistant | Milwaukie, OR | 2017 |
| Kelsey Sievers, LGSW | 1871005595 | Social Worker | Minneapolis, MN | 2017 |
| Kendra Sievers | 1811519986 | Clinical Social Worker | Falls Church, VA | 2020 |
| Kenneth Sievers, DDS | 1407932817 | Dentist | Duluth, MN | 2006 |
| Kimberly Sievers | 1962027318 | Recreation Therapist | Auburndale, WI | 2020 |
| Laura Sievers, MS, CCC-A | 1184917684 | Audiologist | Jackson, TN | 2011 |
| Lisa Sievers, RN, ACNP-BC | 1124341045 | Acute Care Nurse Practitioner | Richmond, VA | 2010 |
| Lisa Sievers | 1568583151 | Student in an Organized Health Care Education/Training Program | Portland, OR | 2007 |
| Lori Sievers, RN, MSN, FNP-BC | 1073812137 | Family Nurse Practitioner | Saint Louis, MO | 2011 |
| Lori Sievers | 1225874126 | Student in an Organized Health Care Education/Training Program | Davis, CA | 2024 |
| Lou Sievers, D.M.D. | 1760606891 | Dentist | Lexington, KY | 2007 |
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).