Providers Emma Klein to Jana Klein, PT
300 individual NPIs in the federal registry, part 11,572 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. 104 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Emma Klein | 1831081736 | Day Training/Habilitation Specialist | Saint Cloud, MN | 2025 |
| Emma Klein, OTR/L | 1962940551 | Occupational Therapist | Mesa, AZ | 2017 |
| Emma Klein, PA-C | 1972276756 | Physician Assistant | Santa Barbara, CA | 2021 |
| Emmanuel Klein, D.D.S. | 1942422027 | General Practice Dentistry | Phoenix, AZ | 2007 |
| Eran Klein, MD/PHD | 1437484524 | Neurology Physician | Portland, OR | 2009 |
| Erez Klein, MD | 1174292353 | Vascular & Interventional Radiology Physician | Tampa, FL | 2021 |
| Eric Klein, M.D.,MPH, TM | 1023013109 | Specialist | Meridian, ID | 2005 |
| Eric Klein, MD | 1083612568 | Internal Medicine Physician | Olympia, WA | 2005 |
| Eric Klein | 1124517040 | Dentist | Hanover, PA | 2018 |
| Eric Klein, DMD | 1548353923 | Dentist | Frankfort, IL | 2006 |
| Eric Klein, MS SLP | 1629575378 | Speech-Language Pathologist | Orem, UT | 2018 |
| Eric Klein, PHD, LSW | 1700373362 | Social Worker | Palmer, PA | 2018 |
| Eric Klein, M.D. | 1720260920 | Surgical Critical Care Physician | New Hyde Park, NY | 2007 |
| Eric Klein, D.M.D., P.C. | 1740430875 | General Practice Dentistry | Cambridge, MA | 2008 |
| Eric Klein, DDS | 1760406854 | General Practice Dentistry | Norwalk, CT | 2006 |
| Eric Klein, MD | 1780649764 | Urology Physician | Cleveland, OH | 2006 |
| Eric Klein, DPT | 1922624709 | Physical Therapist | Las Vegas, NV | 2020 |
| Eric Klein, ASUDC INTERN | 1992516124 | Addiction (Substance Use Disorder) Counselor | Tooele, UT | 2025 |
| Erica Klein, LCSW | 1558830380 | Clinical Social Worker | Brooklyn, NY | 2018 |
| Erica Klein, M.D. | 1760860829 | Pediatric Radiology Physician | Park Ridge, IL | 2015 |
| Erick Klein, NP-C | 1225483241 | Family Nurse Practitioner | Joshua, TX | 2016 |
| Erik Klein | 1093392631 | Internal Medicine Physician | Ocean, NJ | 2021 |
| Erik Klein, DDS | 1982949228 | Dentist | Marietta, GA | 2012 |
| Erika Klein, LMSW | 1053627711 | Clinical Social Worker | New York, NY | 2010 |
| Erika Klein, DPT | 1134504731 | Physical Therapist | Omaha, NE | 2015 |
| Erika Klein | 1376390260 | Behavior Technician | Melbourne, FL | 2024 |
| Erika Klein, MD | 1861414047 | Obstetrics & Gynecology Physician | Pawtucket, RI | 2006 |
| Erin Klein, LPN | 1073847331 | Licensed Practical Nurse | Verona, WI | 2009 |
| Erin Klein, M.A. | 1184929283 | Mental Health Counselor | San Jose, CA | 2011 |
| Erin Klein, PA-C | 1245946219 | Physician Assistant | Richmond, VA | 2023 |
| Erin Klein, DPM | 1316196348 | Foot & Ankle Surgery Podiatrist | Bannockburn, IL | 2008 |
| Erin Klein, PT | 1467406348 | Physical Therapist | Bloomingdale, IL | 2006 |
| Erin Klein | 1508018755 | Mental Health Counselor | Eureka, CA | 2008 |
| Erin Klein | 1538759733 | Family Nurse Practitioner | Lebanon, NH | 2021 |
| Erin Klein | 1548688179 | Emergency Medicine Physician | Milwaukee, WI | 2014 |
| Esie Klein, PT | 1629168398 | Physical Therapist | Minneapolis, MN | 2006 |
| Estelle Klein | 1023837242 | Speech-Language Pathologist | Aurora, CO | 2024 |
| Esther Klein, CNP | 1225484165 | Family Nurse Practitioner | Marietta, GA | 2016 |
| Esther Klein, CBC,CD,CPD | 1326982034 | Doula | Staten Island, NY | 2026 |
| Esther Klein, LCSW | 1528080918 | Clinical Social Worker | Safety Harbor, FL | 2006 |
| Esther Klein | 1811396401 | Counselor | Jamaica, NY | 2014 |
| Esther Klein, PHD | 1871207340 | Clinical Psychologist | Boca Raton, FL | 2023 |
| Esther Klein, RN | 1891626404 | Student in an Organized Health Care Education/Training Program | Ephrata, PA | 2026 |
| Ethan Klein, PHARM.D. | 1215244694 | Pharmacist | North Chicago, IL | 2010 |
| Ethan Klein, LCSW | 1841423803 | Clinical Social Worker | Houston, TX | 2009 |
| Ethan Klein, PTA | 1841693314 | Physical Therapy Assistant | St Augustine, FL | 2014 |
| Eugene Klein, DDS | 1003997917 | Dentist | Keene, NH | 2006 |
| Evan Klein, PA-C | 1184465130 | Surgical Physician Assistant | Hillsboro, OR | 2024 |
| Evan Klein, M.D. | 1245677061 | Cardiovascular Disease Physician | Madison, WI | 2013 |
| Evan Klein | 1598349979 | Internal Medicine Physician | Chicago, IL | 2021 |
| Evan Klein | 1629854716 | Behavior Technician | Monrovia, CA | 2023 |
| Evan Klein, MA LPC | 1700354800 | Professional Counselor | Denver, CO | 2018 |
| Evan Klein, BCBA | 1952098865 | Behavior Analyst | Commerce, CA | 2023 |
| Eve Klein, M.A. CCC-SLP | 1063503167 | Speech-Language Pathologist | Palo Alto, CA | 2006 |
| Eve Klein, M.D. | 1982846234 | Addiction Medicine (Psychiatry & Neurology) Physician | Portland, OR | 2009 |
| Evelyn Klein | 1154160778 | Physician Assistant | New Orleans, LA | 2024 |
| Evelyn Klein, PHD | 1265499164 | Mental Health Counselor | Glencoe, IL | 2006 |
| Evelyn Klein, PH.D. | 1801120795 | Speech-Language Pathologist | Malvern, PA | 2009 |
| Evelyne Klein | 1811620172 | Technician | Port Huron, MI | 2022 |
| Ezra Klein, DO | 1619612942 | Neurology Physician | Bethesda, MD | 2022 |
| Faigy Klein | 1104752195 | Specialist | Brooklyn, NY | 2026 |
| Faigy Klein | 1417484007 | Specialist | Brooklyn, NY | 2017 |
| Faith Klein, PHARMD | 1992359608 | Pharmacist | Culpeper, VA | 2019 |
| Farah Klein | 1316295702 | Behavior Analyst | Tampa, FL | 2012 |
| Farrel Klein, M.D. | 1447364559 | Psychiatry Physician | Newport, RI | 2006 |
| Fay Klein | 1295882132 | Mental Health Counselor | Northampton, MA | 2007 |
| Fern Klein, RN, CDE | 1568665768 | Diabetes Educator Registered Nurse | Lebanon, MO | 2007 |
| Fiana Klein, DO | 1912267501 | Child & Adolescent Psychiatry Physician | Stony Brook, NY | 2012 |
| Fraidel Klein | 1043528896 | Speech-Language Pathologist | Brooklyn, NY | 2010 |
| Fraidy Klein | 1982948436 | Specialist | Brooklyn, NY | 2012 |
| Frances Klein | 1720778640 | Mental Health Counselor | Ketchikan, AK | 2023 |
| Francia Klein, PT | 1366620429 | Physical Therapist | Hollywood, FL | 2008 |
| Frank Klein, LPN | 1801109079 | Licensed Practical Nurse | Mc Graw, NY | 2010 |
| Franz Klein, D.C. | 1265411854 | Chiropractor | Abilene, TX | 2006 |
| Fred Klein, MD | 1992781777 | Diagnostic Radiology Physician | Neenah, WI | 2005 |
| Frederick Klein, MD | 1104827039 | Urology Physician | Sweetwater, TN | 2005 |
| Frederick Klein, MD | 1144273079 | Emergency Medicine Physician | Boise, ID | 2006 |
| Frederick Klein | 1750958617 | Peer Specialist | Juneau, AK | 2021 |
| Frederick Klein, M.D. | 1962487876 | Gastroenterology Physician | Tucson, AZ | 2005 |
| Frieda Klein, RPAC | 1861470494 | Physician Assistant | Monroe, NY | 2006 |
| G. Jean Klein, RN | 1679789408 | Psychiatric/Mental Health Registered Nurse | Chester, PA | 2007 |
| Gabor Klein | 1871817981 | Pharmacist | Brooklyn, NY | 2010 |
| Gabriel Klein, M.D. | 1467710699 | Plastic and Reconstructive Surgery Physician | Charleston, SC | 2012 |
| Gabrielle Klein, NP | 1306077441 | Adult Health Nurse Practitioner | Rockville Centre, NY | 2009 |
| Gabrielle Klein, M.ED. | 1679463087 | Mental Health Counselor | Chicago, IL | 2025 |
| Gabrielle Klein | 1689542938 | Behavior Technician | Farmington Hills, MI | 2025 |
| Gabrielle Klein, ND | 1891583308 | Naturopath | Sebastopol, CA | 2025 |
| Gabrielle Klein, LPN | 1992494322 | Licensed Practical Nurse | Kahuku, HI | 2023 |
| Gad Klein, PHD | 1477786325 | Clinical Neuropsychologist | New Hyde Park, NY | 2009 |
| Gail Klein | 1770437733 | Occupational Therapist | Los Angeles, CA | 2026 |
| Garrett Klein, D.C. | 1679864763 | Chiropractor | Northlake, IL | 2011 |
| Gary Klein, O.D. | 1043489081 | Optometrist | San Diego, CA | 2008 |
| Gary Klein, DPM | 1063584944 | Podiatrist | Warren, MI | 2006 |
| Gary Klein, MD | 1164647483 | Child & Adolescent Psychiatry Physician | Owings Mills, MD | 2007 |
| Gary Klein, D.D.S.M.S | 1194897405 | Orthodontics and Dentofacial Orthopedics Dentistry | Vernon Hills, IL | 2006 |
| Gary Klein, D.D.S. | 1205804234 | General Practice Dentistry | Shirley, NY | 2006 |
| Gary Klein, M.D. | 1285732388 | Dermatology Physician | Valencia, CA | 2006 |
| Gary Klein, PTA | 1386769719 | Physical Therapy Assistant | Burlington, NJ | 2007 |
| Gary Klein, M.D. | 1568490910 | Family Medicine Physician | Colorado Spgs, CO | 2006 |
| Gary Klein, D.D.S. | 1598789604 | General Practice Dentistry | Harrisburg, PA | 2006 |
| Gary Klein, LCSW | 1861613853 | Clinical Social Worker | Salt Lake City, UT | 2007 |
| Gary Klein, M.D. | 1942399738 | Family Medicine Physician | Butner, NC | 2006 |
| Gary Klein, DDS | 1952799397 | Dentist | New York, NY | 2015 |
| Gavin Klein | 1982836052 | Case Manager/Care Coordinator | Denver, CO | 2009 |
| Gavriella Klein, MSED, BCBA, LBS | 1336733542 | Behavior Analyst | Philadelphia, PA | 2021 |
| Gayle Klein, MD | 1356540512 | Psychiatry Physician | Farmington, CT | 2007 |
| Gayle Klein | 1659405819 | Pharmacist | Binghamton, NY | 2007 |
| Geffrey Klein, M.D. | 1124020433 | Obstetrics & Gynecology Physician | Webster, TX | 2005 |
| Genevieve Klein, MS, CCC-SLP | 1689054579 | Speech-Language Pathologist | San Diego, CA | 2015 |
| Genna Klein, M.D. | 1609088806 | Pediatric Endocrinology Physician | Bronx, NY | 2007 |
| Gentry Klein, APRN | 1053761296 | Family Nurse Practitioner | Kearney, NE | 2016 |
| Geoffrey Klein | 1598786949 | Physical Therapist | Burlington, WI | 2006 |
| Geordan Klein, OTR/L | 1003468299 | Occupational Therapist | Murrieta, CA | 2019 |
| George Klein, M.D. | 1083793160 | Family Medicine Physician | Greenville, NC | 2006 |
| George Klein, MD | 1316965585 | Specialist | New York, NY | 2006 |
| George Klein, DPT | 1770083420 | Physical Therapist | Parrish, FL | 2018 |
| Gerald Klein, MD | 1104048198 | Specialist | Plantation, FL | 2007 |
| Gerald Klein, D.M.D. | 1225196033 | General Practice Dentistry | Kennewick, WA | 2006 |
| Gerald Klein, D.C. | 1376567941 | Chiropractor | Fulton, MS | 2006 |
| Gerald Klein | 1689653438 | Diagnostic Radiology Physician | Sebring, FL | 2006 |
| Geraldine Klein, MD | 1245659523 | Urology Physician | Rancho Mirage, CA | 2014 |
| Gila Klein | 1457240848 | Speech-Language Pathologist | Houston, TX | 2025 |
| Gillian Klein, MOTR/L | 1528322641 | Occupational Therapist | Brick, NJ | 2012 |
| Gina Klein, RPH | 1669792925 | Pharmacist | Jeannette, PA | 2010 |
| Gina Klein, LCSW | 1972464030 | Clinical Social Worker | York, PA | 2025 |
| Ginger Klein, RP | 1235789132 | Mental Health Counselor | Colorado Springs, CO | 2019 |
| Gittel Klein, BCBA | 1891425526 | Behavior Analyst | Brooklyn, NY | 2022 |
| Gitty Klein, MSW STUDENT | 1326852963 | School Social Worker | Brooklyn, NY | 2025 |
| Glendalyn Klein, M.D.,B.S.N.,R.N. | 1518270453 | Family Medicine Physician | Daytona Beach, FL | 2010 |
| Glenn Klein, LMHC | 1578657755 | Mental Health Counselor | Brookline, MA | 2006 |
| Glenna Klein | 1205160561 | Social Worker | Espanola, NM | 2009 |
| Goldie Klein | 1538615950 | Lactation Consultant (Non-RN) | Brooklyn, NY | 2016 |
| Goldy Klein | 1255119178 | Specialist | Brooklyn, NY | 2023 |
| Goldy Klein | 1306618558 | Speech-Language Pathologist | New York, NY | 2023 |
| Goldy Klein | 1366325417 | Specialist | Brooklyn, NY | 2025 |
| Gonya Klein, P.T,. L.M.T. | 1750068003 | Physical Therapist | Seattle, WA | 2023 |
| Gordon Klein, MD | 1780765479 | Pediatric Gastroenterology Physician | Galveston, TX | 2006 |
| Grace Klein | 1710384425 | Assistant Health Information Record Technician | San Leandro, CA | 2014 |
| Grace Klein, M.A., CF-SLP | 1760266464 | Speech-Language Pathologist | Winter Park, FL | 2023 |
| Grace Klein, RN, PH.D | 1760856157 | Adult Psychiatric/Mental Health Registered Nurse | Rochester, NY | 2015 |
| Grant Klein | 1679262646 | Professional Counselor | Kansas City, MO | 2023 |
| Gregg Klein, MD | 1528053642 | Orthopaedic Surgery Physician | Paramus, NJ | 2005 |
| Gregory Klein, D.M.D | 1013944271 | General Practice Dentistry | Warwick, NY | 2006 |
| Gregory Klein, L.AC. | 1093238644 | Acupuncturist | Woodland, CA | 2017 |
| Gregory Klein, DPT | 1699542696 | Physical Therapist | Forest Grove, OR | 2023 |
| Greta Klein, NP | 1336561026 | Primary Care Nurse Practitioner | Wyoming, MI | 2014 |
| Gretchen Klein, APSW | 1326737016 | Social Worker | Milwaukee, WI | 2023 |
| Gretchen Klein | 1407524291 | Behavior Analyst | Galesburg, MI | 2021 |
| Guy Klein, D.O. | 1487966842 | Orthopaedic Surgery Physician | Gig Harbor, WA | 2010 |
| H. Klein, D.C. | 1659556710 | Sports Physician Chiropractor | Coral Springs, FL | 2008 |
| Hadassah Klein | 1225778384 | Social Worker | Spring Valley, NY | 2022 |
| Hadassah Klein | 1821344086 | Speech-Language Pathologist | Lakewood, NJ | 2012 |
| Hadassah Klein, M.S. S.L.P | 1922357201 | Speech-Language Pathologist | Lakewood, NJ | 2012 |
| Hadasseh Klein, SLP | 1457737181 | Speech-Language Pathologist | Spring Valley, NY | 2015 |
| Hagai Klein, MD | 1861979296 | Student in an Organized Health Care Education/Training Program | San Antonio, TX | 2018 |
| Hailey Klein, SLP | 1811869217 | Speech-Language Pathologist | Lincoln, NE | 2025 |
| Haley Klein | 1184415770 | Community Health Worker | Taylorville, IL | 2025 |
| Haley Klein, PA-C | 1376080028 | Physician Assistant | Boston, MA | 2017 |
| Haley Klein, OTR/L | 1790581809 | Occupational Therapist | Omaha, NE | 2025 |
| Hannah Klein, LCSW | 1033542311 | Clinical Social Worker | Paducah, KY | 2013 |
| Hannah Klein, LCSW | 1083081095 | Clinical Social Worker | Fort Polk, LA | 2015 |
| Hannah Klein | 1093401226 | Behavior Analyst | Saginaw, MI | 2023 |
| Hannah Klein | 1245913185 | Behavior Technician | Riverside, CA | 2023 |
| Hannah Klein, OTR/L | 1437700739 | Occupational Therapist | Ontario, CA | 2019 |
| Hannah Klein, M.S., BCBA | 1467131334 | Behavior Analyst | Longmont, CO | 2023 |
| Hannah Klein, OTD, OTR/L | 1558872457 | Pediatric Occupational Therapist | Cypress, CA | 2017 |
| Hannah Klein | 1730504069 | Speech-Language Pathologist | Cleveland, OH | 2014 |
| Hannah Klein, M.D. PH.D. | 1811250418 | Neurology Physician | Flemington, NJ | 2012 |
| Hara Klein, LMHC | 1194875153 | Mental Health Counselor | Boston, MA | 2007 |
| Harlan Klein, MD | 1922111616 | Anesthesiology Physician | Honolulu, HI | 2006 |
| Harley Klein, PMHNP | 1467575571 | Psychiatric/Mental Health Registered Nurse | Saint Helens, OR | 2007 |
| Harriet Klein | 1144097189 | Speech-Language Pathologist | New York, NY | 2023 |
| Harriet Klein, SLP | 1174899660 | Speech-Language Pathologist | Yonkers, NY | 2012 |
| Harrison Klein | 1235995333 | Psychiatric/Mental Health Nurse Practitioner | Boston, MA | 2024 |
| Harrison Klein, D.O. | 1821847377 | Student in an Organized Health Care Education/Training Program | Pittsburgh, PA | 2024 |
| Harry Klein, M.D. | 1730117615 | Rheumatology Physician | Omaha, NE | 2006 |
| Harvey Klein, M.D. | 1164595534 | Orthopaedic Surgery Physician | Brooklyn, NY | 2006 |
| Harvey Klein, MD | 1174521736 | Psychiatry Physician | Burlington, VT | 2005 |
| Harvey Klein, M.D. | 1487819611 | Hematology (Internal Medicine) Physician | Potomac, MD | 2008 |
| Harvey Klein, PH.D. | 1609973593 | Clinical Psychologist | Wellington, FL | 2006 |
| Harvey Klein, D.D.S. | 1679532030 | General Practice Dentistry | Westminster, MD | 2006 |
| Harvey Klein, M.D. | 1831195734 | Urology Physician | Houston, TX | 2005 |
| Hayden Klein, D.C. | 1033707302 | Chiropractor | Lacey, WA | 2021 |
| Hayley Klein, M.D. | 1871913467 | Ophthalmology Physician | Sioux Falls, SD | 2014 |
| Heather Klein, CRNA | 1124737531 | Certified Registered Nurse Anesthetist | Panorama City, CA | 2022 |
| Heather Klein, ATC, LAT | 1467410506 | Athletic Trainer | Orlando, FL | 2006 |
| Heather Klein, LMT | 1497381644 | Massage Therapist | Lawrenceville, IL | 2020 |
| Heather Klein | 1548129398 | Mental Health Counselor | Midland, MI | 2026 |
| Heather Klein | 1639605678 | Nurse Practitioner | Jesup, GA | 2017 |
| Heather Klein, PT | 1679804777 | Physical Therapist | Raleigh, NC | 2010 |
| Heather Klein, LADC | 1679944532 | Addiction (Substance Use Disorder) Counselor | Brainerd, MN | 2015 |
| Heather Klein, BCAT | 1700720257 | Behavior Technician | Carlsbad, CA | 2026 |
| Heather Klein, CRNA | 1730037847 | Certified Registered Nurse Anesthetist | Minneapolis, MN | 2026 |
| Heather Klein | 1861334781 | Speech-Language Pathologist | Burnsville, MN | 2026 |
| Heather Klein, PTA | 1952883498 | Physical Therapy Assistant | Rutland, VT | 2018 |
| Heather Klein, LSW | 1972716678 | Social Worker | Bismarck, ND | 2007 |
| Heidi Klein, LMT | 1215236724 | Massage Therapist | Sherwood, OR | 2011 |
| Heidi Klein, M.D. | 1427292374 | Emergency Medicine Physician | Decatur, GA | 2009 |
| Heidi Klein | 1912388091 | Behavior Analyst | Seattle, WA | 2015 |
| Heinz Klein, D.M.D. | 1114133303 | Dentist | Campbell, CA | 2007 |
| Heleen Klein, PHD | 1811192883 | Clinical Child & Adolescent Psychologist | Reseda, CA | 2007 |
| Helen Klein, L.S.W. | 1275680951 | Clinical Social Worker | Pittsburgh, PA | 2007 |
| Helen Klein, NURSE PRACTITIONER | 1376613208 | Family Nurse Practitioner | Ketchikan, AK | 2006 |
| Helen Klein, RN | 1578830782 | Neonatal Nurse Practitioner | Tulsa, OK | 2011 |
| Henchy Klein, LSW | 1851277172 | Social Worker | Lakewood, NJ | 2025 |
| Henny Klein | 1356605406 | Specialist | Brooklyn, NY | 2012 |
| Henry Klein | 1144470030 | Mental Health Counselor | Sacramento, CA | 2008 |
| Henry Klein | 1477228989 | Physical Therapist | Bee Cave, TX | 2021 |
| Henry Klein, M.D. | 1871502567 | Legal Medicine | South Jordan, UT | 2006 |
| Herbert Klein, MD | 1235103722 | Specialist | Pittsburgh, PA | 2006 |
| Hilary Klein, M.D. | 1255467007 | Psychiatry Physician | Bridgeport, CT | 2007 |
| Hilary Klein, CRNA | 1396174272 | Certified Registered Nurse Anesthetist | Des Moines, IA | 2013 |
| Hilary Klein, MD | 1487671061 | Forensic Psychiatry Physician | St Louis, MO | 2006 |
| Hilary Klein, CNMT, NMTCB(CT) | 1558146746 | Nuclear Medicine Technology Radiologic Technologist | Leavenworth, KS | 2023 |
| Hilary Klein, PH.D. | 1861781882 | Psychologist | Cabin John, MD | 2011 |
| Hinda Klein, MA | 1023530201 | Speech-Language Pathologist | Monroe, NY | 2017 |
| Hinda Klein | 1437403581 | Specialist | Brooklyn, NY | 2012 |
| Holly Klein | 1013892959 | Counselor | Auburn, CA | 2025 |
| Holly Klein, L.S.C.S.W. | 1184617896 | Clinical Social Worker | Overland Park, KS | 2005 |
| Holly Klein, M.S., CCC-SLP | 1225301716 | Speech-Language Pathologist | Sugar Grove, NC | 2012 |
| Holly Klein, BEHAVIORAL MEDICINE | 1285968636 | Technician | Fort Rucker, AL | 2009 |
| Holly Klein, O.D. | 1407086945 | Optometrist | Fairview Heights, IL | 2009 |
| Holly Klein | 1588992143 | Speech-Language Pathologist | Columbia, MO | 2009 |
| Holly Klein | 1780107904 | Personal Care Attendant | Grand Rapids, MI | 2017 |
| Hong Klein, MA, LPC | 1326123357 | Professional Counselor | Friendswood, TX | 2006 |
| Howard Klein, M.D. | 1063456325 | Internal Medicine Physician | Northampton, MA | 2006 |
| Howard Klein, MD | 1114783768 | Plastic and Reconstructive Surgery Physician | Loomis, CA | 2024 |
| Howard Klein, RPH | 1124355409 | Pharmacist | Dallas, TX | 2009 |
| Howard Klein, M.D. | 1285717033 | Gastroenterology Physician | Clearwater, FL | 2006 |
| Howard Klein, MD | 1487664017 | Pulmonary Disease Physician | Philadelphia, PA | 2006 |
| Howard Klein, D.M.D. | 1619046646 | Oral and Maxillofacial Pathology Dentistry | Louisville, KY | 2006 |
| Ian Klein, D.P.M. | 1033118187 | Foot Surgery Podiatrist | St Petersburg, FL | 2005 |
| Ilan Klein, MD | 1134644859 | Urology Physician | Winston Salem, NC | 2017 |
| Ilene Klein, M.D. | 1275749319 | Family Medicine Physician | San Diego, CA | 2007 |
| Ilyana Klein, NP | 1326336587 | Adult Health Nurse Practitioner | Worcester, MA | 2011 |
| Ingo Klein, M.D. | 1437396827 | Surgery Physician | San Francisco, CA | 2009 |
| Ira Klein | 1609082676 | Psychiatry Physician | Tacoma, WA | 2007 |
| Ira Klein, M.D. | 1629073945 | Anesthesiology Physician | Columbus, OH | 2005 |
| Irene-Lee Klein, NP | 1629922133 | Family Nurse Practitioner | Bolton, CT | 2026 |
| Irv Klein, M.D. | 1871569343 | Anesthesiology Physician | Van Nuys, CA | 2006 |
| Irving Klein, D.O. | 1659378321 | Family Medicine Physician | West Deptford, NJ | 2005 |
| Irwin Klein, OPHTHALMIC DISPENSER | 1992824015 | Optician | New York, NY | 2007 |
| Iryna Klein, PHARMD | 1164019154 | Pharmacist | Morehead City, NC | 2020 |
| Isaac Klein, M.D., PH.D. | 1780022269 | Internal Medicine Physician | Boston, MA | 2013 |
| Isaac Klein | 1891686366 | Social Worker | New York, NY | 2025 |
| Isabel Klein, ARNP | 1851357479 | Nurse Practitioner | Miami, FL | 2006 |
| Isabella Klein, L.AC. | 1467845289 | Acupuncturist | Scottsdale, AZ | 2015 |
| Israel Klein | 1336750389 | Specialist | Brooklyn, NY | 2020 |
| Israel Klein, M.D. | 1609096650 | Psychiatry Physician | New York, NY | 2007 |
| Ivette Klein | 1609382753 | Physical Therapy Assistant | Miami, FL | 2017 |
| Izzy Klein, LMT | 1295491355 | Massage Therapist | Boulder, CO | 2021 |
| Jacie Klein | 1144160318 | Chiropractor | Cedar Falls, IA | 2026 |
| Jaclyn Klein | 1861850224 | Other Technician | Sterling Heights, MI | 2016 |
| Jacob Klein, DPT | 1023283389 | Physical Therapist | St Louis Park, MN | 2008 |
| Jacob Klein | 1033076377 | Social Worker | Lakewood, NJ | 2026 |
| Jacob Klein, LCSW | 1053899195 | Clinical Social Worker | Asheville, NC | 2018 |
| Jacob Klein, M.D. | 1093568529 | Student in an Organized Health Care Education/Training Program | Warren, MI | 2024 |
| Jacob Klein | 1114636321 | Social Worker | East Islip, NY | 2022 |
| Jacob Klein, MD | 1194780213 | Obstetrics & Gynecology Physician | St Louis, MO | 2006 |
| Jacob Klein, OPTHALMIC DISPENSER | 1306247614 | Optician | Lakewood, NJ | 2014 |
| Jacob Klein, LMHC | 1326416553 | Mental Health Counselor | Brooklyn, NY | 2015 |
| Jacob Klein, MSN, RN, FNP-BC | 1336080159 | Family Nurse Practitioner | Sikeston, MO | 2026 |
| Jacob Klein | 1417521451 | Physical Therapist | Allentown, PA | 2021 |
| Jacob Klein, DC OF CHIROPRACTIC | 1477922300 | Chiropractor | New York, NY | 2015 |
| Jacob Klein, M.ED, PCC | 1477985257 | Mental Health Counselor | Westlake, OH | 2013 |
| Jacob Klein | 1689424806 | Emergency Medicine Physician | Temecula, CA | 2024 |
| Jacob Klein | 1710542972 | Peer Specialist | Columbus, OH | 2019 |
| Jacob Klein | 1811783640 | Occupational Therapist | Waconia, MN | 2025 |
| Jacob Klein, MD | 1841040607 | Student in an Organized Health Care Education/Training Program | Columbus, OH | 2024 |
| Jacob Klein, PA | 1861865552 | Physician Assistant | Hudson, NY | 2015 |
| Jacqueline Klein | 1275931693 | Speech-Language Pathologist | Armonk, NY | 2014 |
| Jacqueline Klein, MA | 1477522720 | Speech-Language Pathologist | Albany, NY | 2006 |
| Jacqueline Klein | 1477834588 | Behavior Analyst | Reno, NV | 2011 |
| Jacqueline Klein, SUDP | 1578009585 | Addiction (Substance Use Disorder) Counselor | Aberdeen, WA | 2017 |
| Jacqueline Klein, MA, CCC-SLP | 1619260957 | Speech-Language Pathologist | Encino, CA | 2011 |
| Jacqueline Klein, PA-C | 1972903953 | Physician Assistant | Rochester, NY | 2014 |
| Jacquelyn Klein, MS | 1629412663 | Clinical Exercise Physiologist | Campbell Hall, NY | 2013 |
| Jaime Klein, RN/QMHP | 1841930377 | Registered Nurse | Gresham, OR | 2022 |
| James Klein, D.D.S. | 1053479253 | General Practice Dentistry | Ionia, MI | 2006 |
| James Klein, MD | 1104828482 | Ophthalmology Physician | St Clair Shores, MI | 2005 |
| James Klein, MD | 1194747691 | Colon & Rectal Surgery Physician | Tucson, AZ | 2006 |
| James Klein, MD | 1215969142 | Emergency Medicine Physician | Nokomis, FL | 2006 |
| James Klein, MD | 1225126998 | Otolaryngology Physician | San Francisco, CA | 2006 |
| James Klein, MS | 1336242429 | Counselor | Utica, NY | 2006 |
| James Klein, MD | 1407814007 | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | Englewood, NJ | 2006 |
| James Klein, LMSW | 1447871637 | Social Worker | Platteville, WI | 2020 |
| James Klein, D.D.S. | 1508998006 | General Practice Dentistry | Cincinnati, OH | 2007 |
| James Klein, M.D. | 1578591384 | Emergency Medicine Physician | Daytona Beach, FL | 2006 |
| James Klein, MD | 1679516983 | Pulmonary Disease Physician | Columbus, OH | 2006 |
| James Klein, LCPC | 1740328970 | Professional Counselor | Urbana, IL | 2007 |
| James Klein, CPO | 1932245495 | Prosthetist | Charleston, SC | 2007 |
| James Klein | 1982131876 | Physical Therapy Assistant | Broomall, PA | 2017 |
| Jamie Klein, PA-C | 1124584172 | Physician Assistant | Merrick, NY | 2019 |
| Jamie Klein | 1518574250 | Mental Health Counselor | Wayne, NJ | 2020 |
| Jamie Klein, LCSW | 1881318350 | Clinical Social Worker | Phoenix, AZ | 2022 |
| Jamie Klein, RADT | 1902652183 | Addiction (Substance Use Disorder) Counselor | Tarzana, CA | 2024 |
| Jamie Klein, MD | 1972252401 | Student in an Organized Health Care Education/Training Program | Cincinnati, OH | 2022 |
| Jan Klein | 1497957393 | Clinical Psychologist | Birmingham, MI | 2007 |
| Jan Klein, M.A., CCC-SLP | 1710124474 | Speech-Language Pathologist | Chestnut Ridge, NY | 2009 |
| Jana Klein, PT | 1316450646 | Physical Therapist | Vancouver, WA | 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).