Providers Dawn Hammer, LMT to Michelle Hammer, APRN
300 individual NPIs in the federal registry, part 8,739 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 |
|---|---|---|---|---|
| Dawn Hammer, LMT | 1487931945 | Specialist | Puyallup, WA | 2011 |
| Dean Hammer, PSY.D. | 1104981364 | Clinical Psychologist | South Londonderry, VT | 2006 |
| Deborah Hammer, D.C. | 1255426623 | Chiropractor | Norwalk, CT | 2006 |
| Deborah Hammer, MD | 1407846462 | Obstetrics & Gynecology Physician | Utica, MI | 2005 |
| Debra Hammer, CNM | 1194880955 | Advanced Practice Midwife | Grantsburg, WI | 2006 |
| Debra Hammer | 1952553208 | Developmental Therapist | Globe, AZ | 2008 |
| Delena Hammer | 1780169904 | Physical Therapy Assistant | Sevierville, TN | 2018 |
| Delores Hammer, DDS | 1336186519 | Dentist | Hickory, NC | 2006 |
| Denise Hammer, LICSW | 1013210012 | Clinical Social Worker | Crookston, MN | 2010 |
| Derek Hammer, PA | 1912529629 | Physician Assistant | Topeka, KS | 2020 |
| Desiree Hammer, PA | 1215312640 | Physician Assistant | Murray, UT | 2015 |
| Donald Hammer, MD | 1538255096 | Cardiovascular Disease Physician | Cleveland, OH | 2006 |
| Donalyn Hammer, LMHC | 1801955000 | Mental Health Counselor | Yakima, WA | 2006 |
| Donna Hammer, MT | 1851131817 | Massage Therapist | Payson, AZ | 2024 |
| Doris Hammer, A.R.N.P. | 1508899782 | Pediatric Nurse Practitioner | Gig Harbor, WA | 2006 |
| Dylan Hammer, PHARMD | 1811607237 | Pharmacist | Caldwell, ID | 2022 |
| Elenore Hammer, RRT | 1235309048 | Registered Respiratory Therapist | Phoenix, AZ | 2008 |
| Eli Hammer, MD | 1730641556 | Family Medicine Physician | Greensboro, NC | 2019 |
| Eli Hammer, M.D. | 1801097837 | Family Medicine Physician | Phoenix, AZ | 2007 |
| Elizabeth Hammer, M.D. | 1073540886 | Pediatrics Physician | Union, MO | 2006 |
| Elizabeth Hammer, MD | 1104117340 | Nephrology Physician | Brooklyn, NY | 2011 |
| Elizabeth Hammer, LMSW | 1265363741 | Social Worker | New York, NY | 2026 |
| Elizabeth Hammer, L.P. | 1285994848 | Clinical Psychologist | Chelsea, MI | 2012 |
| Elizabeth Hammer, LMHC | 1578992814 | Mental Health Counselor | Boca Raton, FL | 2013 |
| Elizabeth Hammer, PHD | 1710123872 | Psychologist | San Diego, CA | 2008 |
| Elizabeth Hammer, AU.D | 1760401277 | Audiologist | Kittery, ME | 2006 |
| Emily Hammer, LCSW | 1265061360 | Clinical Social Worker | Austin, TX | 2020 |
| Emily Hammer, DO | 1306189519 | Emergency Medicine Physician | Grand Blanc, MI | 2013 |
| Emily Hammer, OD | 1598327413 | Optometrist | Knoxville, TN | 2019 |
| Emily Hammer | 1679162010 | Behavior Technician | Huntington Beach, CA | 2021 |
| Emily Hammer | 1760236848 | Music Therapist | Franklin, TN | 2024 |
| Emily Hammer, WHNP-BC | 1841612850 | Women's Health Nurse Practitioner | O Fallon, MO | 2014 |
| Emily Hammer | 1861165078 | Addiction (Substance Use Disorder) Counselor | Dayton, OH | 2021 |
| Emma Hammer, CCC-SLP | 1508658402 | Speech-Language Pathologist | Janesville, WI | 2025 |
| Emma Hammer, LMT | 1538886064 | Massage Therapist | Spanish Fork, UT | 2022 |
| Emma Hammer, MD | 1902646391 | Family Medicine Physician | Pocatello, ID | 2024 |
| Eric Hammer | 1194180976 | Physician Assistant | Gunnison, UT | 2015 |
| Eric Hammer, LPC, LCDC | 1740575166 | Professional Counselor | Amarillo, TX | 2011 |
| Erica Hammer, MD | 1790985802 | Maternal & Fetal Medicine Physician | Hartford, CT | 2007 |
| Erika Hammer, RN | 1750605879 | Case Management Registered Nurse | Panama City, FL | 2010 |
| Erin Hammer, CPM, LM | 1053809889 | Midwife | Newport News, VA | 2018 |
| Erin Hammer, AGPCNP-C | 1366983652 | Primary Care Nurse Practitioner | Pasadena, TX | 2017 |
| Erin Hammer, MD | 1689932576 | Family Medicine Physician | Verona, WI | 2012 |
| Erina Hammer, PHD, LICSW, MSW | 1215241971 | Clinical Social Worker | Maynard, MA | 2010 |
| Erna Hammer, CNP | 1235210139 | Adult Health Nurse Practitioner | Cleveland, OH | 2006 |
| Ethan Hammer, PHARMD | 1851818603 | Pharmacist | Greensboro, NC | 2017 |
| Evan Hammer, RPH | 1871878009 | Pharmacist | Burlington, IA | 2011 |
| Ferrara Hammer | 1093507741 | Personal Care Attendant | New Carlisle, OH | 2025 |
| Francesca Hammer | 1205707049 | Behavior Technician | Stuart, FL | 2025 |
| Gabriella Hammer | 1114731221 | Psychiatric/Mental Health Nurse Practitioner | Los Angeles, CA | 2025 |
| Gabrielle Hammer | 1063991529 | Counselor | Brigham City, UT | 2018 |
| Gabrielle Hammer | 1477276327 | Physical Therapy Assistant | Wallace, KS | 2022 |
| Gabrielle Hammer | 1669078960 | Behavior Technician | Pottsville, PA | 2020 |
| Gail Hammer, L.C.S.W. | 1659511145 | Clinical Social Worker | New York, NY | 2009 |
| Garry Hammer | 1316435761 | Hearing Instrument Specialist | Bowling Green, KY | 2018 |
| Gary Hammer, MD | 1871676791 | Endocrinology, Diabetes & Metabolism Physician | Ann Arbor, MI | 2006 |
| Gene Hammer, PHARMD | 1629358015 | Pharmacist | Hermiston, OR | 2011 |
| Genevieve Hammer, DPT | 1194583674 | Physical Therapist | Lee, NH | 2024 |
| George Hammer, DDS | 1346416971 | Endodontics | Natrona Heights, PA | 2008 |
| Gillian Hammer, PHARMD, RPH | 1841997186 | Pharmacist | Russells Point, OH | 2023 |
| Glenn Hammer, M.S., LPC | 1396846879 | Professional Counselor | Laramie, WY | 2006 |
| Glenn Hammer, M. D. | 1508864786 | Diagnostic Radiology Physician | Cedar Rapids, IA | 2005 |
| Glenn Hammer, M.D. | 1750333498 | Infectious Disease Physician | New York, NY | 2006 |
| Grace Hammer | 1912891664 | Family Nurse Practitioner | La Porte, IN | 2025 |
| Gregory Hammer, M.D. | 1396885455 | Anesthesiology Physician | Stanford, CA | 2007 |
| Greta Hammer | 1770138836 | Mental Health Counselor | Bellingham, WA | 2019 |
| Gwendolyn Hammer | 1972357093 | Addiction (Substance Use Disorder) Counselor | Toledo, OH | 2024 |
| Hailey Hammer | 1083351035 | Speech-Language Pathologist | Oceanside, CA | 2022 |
| Haley Hammer, M.S., CCC-SLP | 1629565791 | Speech-Language Pathologist | Lexington, KY | 2018 |
| Haley Hammer | 1699695320 | Community Health Worker | Lacey, WA | 2026 |
| Hali Hammer, MD | 1396762936 | Family Medicine Physician | San Francisco, CA | 2006 |
| Hanna Hammer | 1215572599 | Occupational Therapist | Van Buren, AR | 2019 |
| Hannah Hammer, COTA/L | 1710695812 | Occupational Therapy Assistant | Rossville, KS | 2022 |
| Hannah Hammer, MSN, APRN, FNP-C | 1861190316 | Family Nurse Practitioner | Waterville, OH | 2023 |
| Hannah Hammer | 1912720939 | Counselor | West Seneca, NY | 2024 |
| Hans Hammer, M.S., R. D., L.D. | 1952525321 | Pediatric Nutrition Registered Dietitian | Gainesville, GA | 2007 |
| Harvey Hammer, MD | 1649343575 | Psychiatry Physician | Morristown, NJ | 2006 |
| Hayle Hammer | 1831920701 | Family Nurse Practitioner | Champaign, IL | 2024 |
| Haylee Hammer | 1477833846 | Behavior Analyst | Kansas City, KS | 2011 |
| Hayley Hammer | 1295217834 | Behavior Technician | Waipahu, HI | 2018 |
| Hayley Hammer, PHARMD | 1447902937 | Pharmacist | Angola, NY | 2022 |
| Heather Hammer | 1053992263 | Registered Nurse | Fayetteville, AR | 2021 |
| Heather Hammer | 1912276767 | Occupational Therapy Assistant | Jamaica, NY | 2011 |
| Heather Hammer, APRN | 1942746201 | Nurse Practitioner | Cincinnati, OH | 2017 |
| Heidi Hammer, PA-C | 1992098065 | Physician Assistant | Rhinelander, WI | 2011 |
| Helen Hammer, MD | 1962586933 | Hospitalist Physician | Santa Rosa, CA | 2006 |
| Henry Hammer, DDS MS | 1932273992 | Dentist | San Antonio, TX | 2006 |
| Howard Hammer, D.O. | 1407841539 | Plastic Surgery within the Head & Neck (Otolaryngology) Physician | Dickson, TN | 2005 |
| Howard Hammer, PSYD PA | 1881649457 | Clinical Psychologist | Vineland, NJ | 2006 |
| Ian Hammer | 1114505070 | Psychiatry Physician | Albany, NY | 2021 |
| Ida Hammer, LMSW | 1760992408 | Social Worker | New York, NY | 2017 |
| Irina Hammer, PA-C | 1689003212 | Physician Assistant | Brooklyn, NY | 2013 |
| Jaclyn Hammer | 1598308520 | Behavior Technician | San Diego, CA | 2019 |
| Jacob Hammer | 1225393994 | Specialist | Brooklyn, NY | 2012 |
| Jacob Hammer | 1770083529 | Certified Registered Nurse Anesthetist | Boise, ID | 2018 |
| Jacqueline Hammer | 1760160998 | Addiction (Substance Use Disorder) Counselor | Lamont, CA | 2023 |
| Jada Hammer | 1831787092 | Rehabilitation Practitioner | Las Vegas, NV | 2021 |
| Jaime Hammer, LMFTA | 1528949542 | Marriage & Family Therapist | Greenville, SC | 2025 |
| James Hammer, DPT | 1245494269 | Physical Therapist | Boise, ID | 2008 |
| James Hammer, PT | 1700367265 | Physical Therapist | Lynchburg, VA | 2018 |
| Jamie Hammer, MD | 1770107294 | Family Medicine Physician | Superior, WI | 2020 |
| Janelle Hammer, PSY.D. | 1417290537 | Clinical Psychologist | Schaumburg, IL | 2013 |
| Janet Hammer, PA-C | 1124212204 | Physician Assistant | Boston, MA | 2007 |
| Janet Hammer, RN, BSN | 1477605756 | Community Health Registered Nurse | Springfield, OR | 2007 |
| Janet Hammer | 1811350358 | Registered Nurse | Holland, OH | 2016 |
| Jarrett Hammer, DO | 1417152026 | Family Medicine Physician | Salem, UT | 2007 |
| Jasmine Hammer, PH.D. | 1871339390 | Clinical Neuropsychologist | Dallas, TX | 2024 |
| Jason Hammer, DMD | 1053441451 | General Practice Dentistry | Nampa, ID | 2007 |
| Jason Hammer, M.D. | 1982784484 | Internal Medicine Physician | Plainview, NY | 2006 |
| Jayden Hammer | 1245153881 | Massage Therapist | Albert Lea, MN | 2026 |
| Jeffrey Hammer, P.A. | 1043326473 | Physician Assistant | Omaha, NE | 2006 |
| Jeffrey Hammer | 1538939624 | Case Manager/Care Coordinator | Albuquerque, NM | 2024 |
| Jeffrey Hammer, MD | 1689634297 | Obstetrics & Gynecology Physician | Chesapeake, VA | 2006 |
| Jenna Hammer, RBT | 1760266159 | Behavior Technician | Champaign, IL | 2023 |
| Jennie Hammer | 1790956100 | Occupational Therapist | Virginia Beach, VA | 2008 |
| Jennier Hammer, M.S. EDUCATION | 1962764738 | Specialist | North Tonawanda, NY | 2012 |
| Jennifer Hammer, PT | 1023441821 | Physical Therapist | Grass Valley, CA | 2013 |
| Jennifer Hammer | 1053110437 | Adult Companion | Bennington, NE | 2025 |
| Jennifer Hammer | 1376377192 | Case Manager/Care Coordinator | Pickerington, OH | 2024 |
| Jennifer Hammer, MD | 1487820619 | Ophthalmology Physician | Rockville, MD | 2008 |
| Jenny Hammer | 1396362364 | Clinical Social Worker | Seattle, WA | 2020 |
| Jenny Hammer, RN | 1437427580 | Registered Nurse | Concord, NC | 2011 |
| Jerrold Hammer, PHARM.D | 1902106545 | Pharmacist | Redlands, CA | 2010 |
| Jessica Hammer, PCC | 1013166933 | Mental Health Counselor | Findlay, OH | 2008 |
| Jessica Hammer | 1013776624 | Mental Health Counselor | Harmony, NC | 2024 |
| Jessica Hammer | 1164762878 | Counselor | El Paso, TX | 2013 |
| Jessica Hammer, DPT | 1619309481 | Physical Therapist | White Sulpher Springs, WV | 2013 |
| Jessica Hammer, M.A., CCC-SLP/L | 1699783761 | Speech-Language Pathologist | Chicago, IL | 2006 |
| Jessica Hammer, TLMLP | 1790983120 | Psychologist | Topeka, KS | 2007 |
| Jill Hammer | 1245409994 | Speech-Language Assistant | Waco, TX | 2008 |
| Jill Hammer | 1699955096 | Audiologist | Hutchinson, KS | 2007 |
| Jo Hammer, MD | 1255318713 | Gynecology Physician | Austin, TX | 2005 |
| Joann Hammer, AUD CCC | 1619956430 | Audiologist | Buffalo, NY | 2006 |
| Joanna Hammer, MA, PPS, LEP | 1568142594 | School Psychologist | Tehachapi, CA | 2023 |
| Jody Hammer | 1508340241 | Physical Therapy Assistant | Palmetto, FL | 2018 |
| Joel Hammer, M.D. | 1053371179 | Anatomic Pathology & Clinical Pathology Physician | Baltimore, MD | 2006 |
| Joel Hammer, PHD | 1376575290 | Clinical Psychologist | Walton, NY | 2006 |
| Johanna Hammer, LICSW | 1649381260 | Clinical Social Worker | South Hadley, MA | 2006 |
| John Hammer, DC | 1154404572 | Chiropractor | Omak, WA | 2006 |
| John Hammer, M.D. | 1184731754 | Internal Medicine Physician | Garrison, NY | 2006 |
| John Hammer, RN | 1346579406 | Adult Psychiatric/Mental Health Registered Nurse | Redding, CA | 2009 |
| John Hammer, LCSW, BCD | 1780641753 | Clinical Social Worker | Hinesville, GA | 2006 |
| John Hammer, DC | 1790701720 | Chiropractor | Rocky Mount, NC | 2006 |
| John Hammer | 1982459038 | Case Manager/Care Coordinator | Salt Lake City, UT | 2024 |
| Jolene Hammer, PT | 1225706518 | Physical Therapist | Allentown, PA | 2021 |
| Jon Hammer, M.D. | 1013449388 | Ophthalmology Physician | Lexington, KY | 2017 |
| Jordan Hammer, PA-C | 1396463477 | Physician Assistant | Edmond, OK | 2022 |
| Jordan Hammer | 1568171429 | Community Health Worker | Columbus, OH | 2022 |
| Jordan Hammer | 1801536123 | Behavior Technician | Hendersonville, TN | 2022 |
| Joseph Hammer, SLP | 1114359288 | Speech-Language Pathologist | Chattanooga, TN | 2013 |
| Joseph Hammer, FNP | 1659945210 | Family Nurse Practitioner | Flagstaff, AZ | 2021 |
| Joshua Hammer, D.M.D. | 1164614533 | General Practice Dentistry | Santa Rosa, CA | 2007 |
| Joshua Hammer, LCSW, ACHP-SW | 1962763102 | Clinical Social Worker | Flagstaff, AZ | 2012 |
| Joyce Hammer, COTA/L | 1639320799 | Occupational Therapy Assistant | Pittsburgh, PA | 2008 |
| Judith Hammer, RN | 1063739092 | Registered Nurse | Buffalo, NY | 2010 |
| Judith Hammer, NP | 1922098912 | Women's Health Nurse Practitioner | Seattle, WA | 2005 |
| Judy Hammer, LMP LICENSED MASSAGE | 1245370089 | Massage Therapist | Anacortes, WA | 2007 |
| Julie Hammer, PHD | 1447569322 | Psychologist | Durham, NC | 2010 |
| Julie Hammer, MOT, OTR/L | 1700286184 | Specialist | Wapakoneta, OH | 2014 |
| Julie Hammer, NP | 1831674183 | Nurse Practitioner | Rochester, NY | 2018 |
| Justin Hammer, OTR/L | 1053947200 | Hand Occupational Therapist | Marysville, OH | 2020 |
| Justin Hammer, DPT | 1518360692 | Physical Therapist | Rexburg, ID | 2014 |
| Justin Hammer | 1982527594 | Student in an Organized Health Care Education/Training Program | Pocatello, ID | 2026 |
| Kaelin Hammer | 1083206908 | Behavior Technician | Sparks, NV | 2021 |
| Kaissy Hammer, APRN | 1275813834 | Psychiatric/Mental Health Nurse Practitioner | West Monroe, LA | 2011 |
| Kaitlyn Hammer, LMFT | 1386940807 | Marriage & Family Therapist | Carlsbad, CA | 2011 |
| Karen Hammer, PT | 1285959411 | Physical Therapist | Florence, SC | 2010 |
| Karen Hammer, DDS | 1952472755 | General Practice Dentistry | Massapequa, NY | 2006 |
| Kari Hammer, PA-C | 1386712339 | Physician Assistant | Hermitage, TN | 2006 |
| Karissa Hammer, M.D. | 1801277736 | Obstetrics & Gynecology Physician | Chicago, IL | 2015 |
| Karl Hammer, OT | 1114508553 | Physical Rehabilitation Occupational Therapist | Austin, TX | 2021 |
| Katarina Hammer, RN | 1437493756 | Registered Nurse | Euclid, OH | 2012 |
| Kate Hammer | 1487023131 | Counselor | Reading, PA | 2015 |
| Katherine Hammer, PA-C | 1366017808 | Physician Assistant | Anchorage, AK | 2021 |
| Katherine Hammer, LOTR | 1366937344 | Hand Occupational Therapist | Metairie, LA | 2018 |
| Katherine Hammer, CCC-SLP | 1477726420 | Speech-Language Pathologist | North Canton, OH | 2008 |
| Katherine Hammer, MS, OTR/L | 1629490040 | Occupational Therapist | Overland Park, KS | 2014 |
| Katherine Hammer | 1720961352 | Adult Health Nurse Practitioner | Naples, FL | 2025 |
| Katherine Hammer, CSW | 1972750693 | Mental Health Counselor | Brooklyn, NY | 2008 |
| Kathryn Hammer, PT | 1023198991 | Physical Therapist | Mukwonago, WI | 2006 |
| Kathryn Hammer, ASW | 1043903388 | Social Worker | Los Angeles, CA | 2023 |
| Kathryn Hammer, APRN, CPNP-PC | 1417509688 | Primary Care Nurse Practitioner | Cedar Park, TX | 2019 |
| Kathryn Hammer, PT | 1770334203 | Physical Therapist | Decatur, TX | 2024 |
| Kayla Hammer | 1710855341 | Home Health Aide | Williamsfield, OH | 2025 |
| Kellie Hammer | 1023534195 | Technician/Technologist | Littleton, CO | 2017 |
| Kelsey Hammer, LICSW | 1629853460 | Clinical Social Worker | Maple Grove, MN | 2023 |
| Kelsey Hammer, MD | 1710773528 | Student in an Organized Health Care Education/Training Program | Dayton, OH | 2025 |
| Kelsie Hammer, M.S., CCC-SLP | 1821561275 | Speech-Language Pathologist | Flower Mound, TX | 2019 |
| Kendra Hammer | 1427534510 | Case Manager/Care Coordinator | Sapulpa, OK | 2018 |
| Kenneth Hammer | 1265603872 | Professional Counselor | Canton, OH | 2008 |
| Kenny Hammer | 1316546922 | Personal Care Attendant | Williston, ND | 2020 |
| Kerri Hammer, PA-C | 1104842350 | Family Medicine Physician | Richfield, MN | 2006 |
| Kevin Hammer | 1245361377 | Rehabilitation Practitioner | Van Nuys, CA | 2007 |
| Kevin Hammer, DPM | 1275152233 | Podiatrist | Medina, OH | 2020 |
| Kimberly Hammer, RN | 1477423549 | Registered Nurse | Des Moines, IA | 2025 |
| Kimberly Hammer, VMD | 1548665300 | Veterinarian | Robbinsville, NJ | 2014 |
| Kimberly Hammer, BSN, RN, PHN | 1649920992 | Registered Nurse | Santa Rosa, CA | 2022 |
| Kimberly Hammer | 1710583521 | Pediatrics Physician | Milwaukee, WI | 2020 |
| Kirsten Hammer | 1437636859 | Behavior Technician | Burlington, WA | 2018 |
| Krista Hammer, M.S. CCC-SLP | 1609204916 | Speech-Language Pathologist | Orchard Park, NY | 2013 |
| Kristen Hammer | 1457755480 | Physical Therapy Assistant | Charlotte, NC | 2014 |
| Kristen Hammer, NP | 1801040811 | Family Nurse Practitioner | Kotzebue, AK | 2008 |
| Kristi Hammer, MSW | 1063965911 | Mental Health Counselor | Many, LA | 2016 |
| Kristin Hammer | 1639697139 | Mental Health Counselor | Wheaton, IL | 2017 |
| Kristin Hammer, D.C. | 1679835680 | Chiropractor | Savage, MN | 2012 |
| Kristin Hammer | 1962600759 | Speech-Language Pathologist | Bainbridge Island, WA | 2007 |
| Kristina Hammer, DNP, FNP-C | 1639634199 | Family Nurse Practitioner | Louisville, KY | 2019 |
| Kristina Hammer, PA | 1730502162 | Physician Assistant | Albuquerque, NM | 2014 |
| Kristy Hammer, MSW | 1245386440 | Social Worker | Corvallis, OR | 2007 |
| Kyle Hammer, D.D.S. | 1679910905 | Dentist | Duluth, MN | 2013 |
| Kylee Hammer, NURSE PRACTITIONER | 1922441625 | Family Nurse Practitioner | Vancouver, WA | 2013 |
| Kylie Hammer, DPT | 1679130819 | Physical Therapist | Parkersburg, WV | 2019 |
| Laine Hammer | 1861225583 | Clinical Social Worker | Los Angeles, CA | 2024 |
| Larissa Hammer, D.M.D. | 1710180807 | General Practice Dentistry | Oxford, MS | 2007 |
| Laura Hammer | 1164073292 | Behavior Technician | Warwick, RI | 2019 |
| Laura Hammer, COTAL | 1285832576 | Specialist | Canton, OH | 2007 |
| Laura Hammer | 1518611631 | Professional Counselor | Lexington, KY | 2022 |
| Lauren Hammer, OTR, CHT | 1174600498 | Hand Occupational Therapist | Frisco, CO | 2006 |
| Lauren Hammer, MD | 1174918122 | Neurology Physician | Philadelphia, PA | 2015 |
| Lauren Hammer | 1699693655 | Registered Nurse | Bozeman, MT | 2026 |
| Lauren Hammer, ARNP-BC | 1720431968 | Women's Health Nurse Practitioner | Tampa, FL | 2016 |
| Lauren Hammer | 1821538174 | Women's Health Nurse Practitioner | Lafayette, CO | 2017 |
| Lauren Hammer, M.S., CCC-SLP | 1861184921 | Speech-Language Pathologist | Bowling Green, KY | 2023 |
| Lauren Hammer, LCSW, MS | 1871783159 | Clinical Social Worker | Westfield, NJ | 2007 |
| Laurie Hammer, M.D. | 1710077854 | Psychiatry Physician | Wellesley, MA | 2006 |
| Lawrence Hammer, DMD | 1225203219 | Dentist | West Orange, NJ | 2008 |
| Lawrence Hammer, M. D. | 1831248756 | Pediatrics Physician | Palo Alto, CA | 2007 |
| Leah Hammer | 1366097875 | Mental Health Counselor | Glasgow, KY | 2019 |
| Leah Hammer, PT | 1508430323 | Physical Therapist | Maple Grove, MN | 2021 |
| Leaha Hammer | 1871729392 | Mental Health Counselor | Wahoo, NE | 2009 |
| Lenard Hammer, M.D. | 1306874383 | Ophthalmology Physician | Columbia, MD | 2006 |
| Lesley Hammer, MA, CCC, SLP/L | 1073761987 | Speech-Language Pathologist | Williamsville, NY | 2008 |
| Leslie Hammer | 1073844288 | Licensed Practical Nurse | Indianapolis, IN | 2010 |
| Leslie Hammer, ASW | 1982005013 | Counselor | Petaluma, CA | 2014 |
| Lillian Hammer | 1801657622 | Psychologist | New Orleans, LA | 2024 |
| Linda Hammer, O.D | 1275560955 | Optometrist | Arlington, VA | 2006 |
| Linda Hammer | 1659404564 | Mental Health Counselor | Farmington, MO | 2007 |
| Linda Hammer, SLP | 1720350002 | Speech-Language Pathologist | Flushing, NY | 2012 |
| Linda Hammer, NP | 1770370223 | Primary Care Nurse Practitioner | Grand Rapids, MI | 2025 |
| Lindsay Hammer, RDN | 1407744535 | Registered Dietitian | Hampton, VA | 2025 |
| Lindsay Hammer, LCSW | 1760992218 | Clinical Social Worker | Anchorage, AK | 2017 |
| Linnea Hammer | 1538874326 | Counselor | Bethesda, MD | 2023 |
| Lisa Hammer, LCSW | 1295203990 | Clinical Social Worker | Damariscotta, ME | 2018 |
| Lisa Hammer, MD | 1497761647 | Pediatrics Physician | Ypsilanti, MI | 2006 |
| Logan Hammer, DPT | 1730870569 | Physical Therapist | Alabaster, AL | 2023 |
| Lora Hammer, CRNA | 1275553042 | Certified Registered Nurse Anesthetist | West Columbia, SC | 2006 |
| Lucille Hammer | 1508726753 | Clinical Social Worker | Bedford, MA | 2025 |
| Luis Hammer, P.A. | 1801077482 | Medical Physician Assistant | Corona, NY | 2007 |
| Luke Hammer, PA-C | 1306079652 | Medical Physician Assistant | Minnetonka, MN | 2009 |
| Luke Hammer, PT | 1730667510 | Physical Therapist | Salem, OR | 2018 |
| Lynn Hammer, RN,C | 1851516249 | College Health Registered Nurse | Corvallis, OR | 2007 |
| Madeline Hammer | 1669322210 | Acute Care Nurse Practitioner | Rochester, NY | 2026 |
| Maiya Hammer, PTA | 1265243125 | Physical Therapy Assistant | Rexburg, ID | 2025 |
| Makaela Hammer | 1063129195 | Behavior Technician | El Dorado Hills, CA | 2022 |
| Mallory Hammer, NDTR | 1619537545 | Health Educator | Danville, PA | 2019 |
| Mallory Hammer, OTR | 1801439492 | Occupational Therapist | Fayetteville, GA | 2019 |
| Margaret Hammer, COTA | 1487862439 | Occupational Therapy Assistant | Havre De Grace, MD | 2007 |
| Maria Hammer | 1861955205 | Registered Nurse | Canton, MI | 2019 |
| Mariah Hammer | 1609628064 | Medical Physician Assistant | Elgin, IL | 2024 |
| Marianne Hammer | 1871327833 | Peer Specialist | Ammon, ID | 2024 |
| Marjorie Hammer, FNP | 1912258880 | Family Nurse Practitioner | Berkeley, CA | 2012 |
| Mark Hammer, PA-C | 1093862658 | Medical Physician Assistant | Pittsburgh, PA | 2007 |
| Mark Hammer, MD | 1356304745 | Ophthalmology Physician | Tampa, FL | 2006 |
| Mark Hammer, M.D. | 1578884003 | Diagnostic Radiology Physician | Boston, MA | 2010 |
| Marti Hammer | 1205667789 | Case Manager/Care Coordinator | Toledo, OH | 2024 |
| Mary Hammer, LAPSW | 1083074884 | Case Manager/Care Coordinator | Knoxville, TN | 2016 |
| Mary Hammer, CRNA | 1245362961 | Certified Registered Nurse Anesthetist | Southfield, MI | 2007 |
| Mary Hammer, APRN | 1679597314 | Adult Health Nurse Practitioner | Milwaukee, WI | 2006 |
| Mason Hammer | 1366165177 | General Practice Dentistry | Fresno, CA | 2022 |
| Matthew Hammer | 1033869698 | Student in an Organized Health Care Education/Training Program | New Haven, CT | 2022 |
| Matthew Hammer, FNP-BC | 1144659632 | Family Nurse Practitioner | Maryland Heights, MO | 2013 |
| Matthew Hammer, M.D. | 1285920918 | Anesthesiology Physician | Milwaukee, WI | 2011 |
| Matthew Hammer, MD | 1356532824 | Diagnostic Radiology Physician | Dallas, TX | 2007 |
| Matthew Hammer, DC | 1659015030 | Chiropractor | Shrewsbury, MA | 2022 |
| Matthew Hammer, PHARMD | 1922398155 | Pharmacist | Minneapolis, MN | 2011 |
| Matthew Hammer, PHARMD | 1992010813 | Pharmacist | Sterling, IL | 2010 |
| Max Hammer, OT | 1225230667 | Occupational Therapist | Bethesda, MD | 2007 |
| Max Hammer, M.D. | 1477650794 | Surgery Physician | Springfield, IL | 2006 |
| Maxim Hammer, MD | 1902879869 | Vascular Neurology Physician | Bethel Park, PA | 2006 |
| Megan Hammer, PSY.D. | 1104191600 | Clinical Psychologist | Chicago, IL | 2012 |
| Megan Hammer, FNP | 1538743273 | Family Nurse Practitioner | Marshfield, MO | 2021 |
| Megan Hammer | 1649777285 | Clinical Social Worker | Troy, MI | 2018 |
| Meredith Hammer, PA | 1548945496 | Physician Assistant | Charlotte, NC | 2023 |
| Michael Hammer, OD | 1013967181 | Optometrist | Deerfield, IL | 2006 |
| Michael Hammer, M.D. | 1265503049 | Interventional Pain Medicine Physician | Pensacola, FL | 2006 |
| Michael Hammer, CAC, ICADC, SAP | 1275168338 | Addiction (Substance Use Disorder) Counselor | Tampa, FL | 2020 |
| Michael Hammer | 1407310980 | Physical Therapist | Jefferson City, TN | 2019 |
| Michael Hammer, MD | 1477496354 | Student in an Organized Health Care Education/Training Program | Dayton, OH | 2026 |
| Michael Hammer, MD | 1508808759 | Neurology with Special Qualifications in Child Neurology Physician | Saint Petersburg, FL | 2006 |
| Michael Hammer, DO | 1588784250 | Internal Medicine Physician | Columbia, SC | 2007 |
| Michael Hammer, PHD | 1629035324 | Psychologist | Prairie Du Sac, WI | 2006 |
| Michael Hammer, DNP | 1730813130 | Family Nurse Practitioner | McVille, ND | 2022 |
| Michael Hammer, D.O. | 1780661777 | Anesthesiology Physician | Orlando, FL | 2005 |
| Michael Hammer, MSW | 1861491292 | Clinical Social Worker | San Diego, CA | 2005 |
| Michael Hammer | 1952855983 | Speech-Language Pathologist | Madison, WI | 2016 |
| Michaela Hammer, LCSW, PSYD | 1750472361 | Clinical Social Worker | Vero Beach, FL | 2006 |
| Michelle Hammer, NP | 1225169584 | Gerontology Nurse Practitioner | New York, NY | 2007 |
| Michelle Hammer | 1245542232 | Pediatric Occupational Therapist | Syosset, NY | 2010 |
| Michelle Hammer, LCPC | 1366624934 | Professional Counselor | Annapolis, MD | 2007 |
| Michelle Hammer, APRN | 1427576651 | Family Nurse Practitioner | Plainview, NE | 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).