Providers Jennifer Zaitz, DO to Allen Zak, D.C.
300 individual NPIs in the federal registry, part 24,256 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. 108 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Jennifer Zaitz, DO | 1205031911 | Endocrinology, Diabetes & Metabolism Physician | Holmdel, NJ | 2007 |
| Kristen Zaitz | 1598212961 | Athletic Trainer | Slippery Rock, PA | 2016 |
| Stefanie Zaitz | 1528956935 | Mental Health Counselor | Brooklyn, NY | 2025 |
| Danielle Zaitzew, RN, IBCLC | 1063257855 | Maternal Newborn Registered Nurse | Longmont, CO | 2024 |
| Mark Zaitzew | 1275698060 | Physical Therapist | Vallejo, CA | 2006 |
| Hannah Zaiv, M.A., L.P.C. | 1518122951 | Mental Health Counselor | Portland, OR | 2008 |
| Brooke Zaiz, MD | 1174150890 | Obstetrics & Gynecology Physician | Saint Louis, MO | 2020 |
| Thomas Zaiz, PA | 1639223571 | Surgical Physician Assistant | Glen Carbon, IL | 2007 |
| Manaf Zaizafoun, MD | 1174787972 | Pulmonary Disease Physician | Lorain, OH | 2008 |
| Eric Zaizar, PHD | 1295417913 | Student in an Organized Health Care Education/Training Program | Seattle, WA | 2023 |
| Erika Zaizar | 1063601649 | Audiology Assistant | San Diego, CA | 2007 |
| Nora Zaizar | 1467987107 | Mental Health Counselor | Kerrville, TX | 2017 |
| Alfreda Zaizay | 1346176542 | Peer Specialist | Moorhead, MN | 2026 |
| Jamie Zaj | 1578909438 | School Psychologist | Charleston, SC | 2013 |
| Amie Zaja, CSAC | 1801335120 | Addiction (Substance Use Disorder) Counselor | Portage, WI | 2017 |
| Aubrey Zaja, PA-C | 1952024341 | Physician Assistant | Syracuse, NY | 2022 |
| Aimi Zajac | 1922354588 | Gerontology Nurse Practitioner | Kirtland, OH | 2012 |
| Alexander Zajac | 1235751967 | Critical Care Neonatal Nurse Practitioner | New York, NY | 2020 |
| Alexander Zajac, M.D. | 1730508805 | Anesthesiology Physician | Mangonia Park, FL | 2014 |
| Alicia Zajac, OTR/L | 1437894219 | Physical Rehabilitation Occupational Therapist | Quincy, MA | 2022 |
| Alisa Zajac | 1033996061 | Critical Care Medicine Registered Nurse | Madison, TN | 2023 |
| Alissa Zajac | 1205478930 | Orthopedic Physical Therapist | Royersford, PA | 2019 |
| Alissa Zajac, RBT | 1871227710 | Behavior Technician | Port Saint Lucie, FL | 2022 |
| Amanda Zajac, RN, BSN | 1578351011 | Registered Nurse | North Little Rock, AR | 2025 |
| Amy Zajac, NP | 1629397054 | Acute Care Nurse Practitioner | Springfield, MA | 2010 |
| Andrea Zajac, RDN | 1144083775 | Registered Dietitian | San Diego, CA | 2024 |
| Andrea Zajac | 1154786705 | Social Worker | Grand Rapids, MI | 2015 |
| Andrej Zajac, M.D. | 1316929623 | Radiation Oncology Physician | Munster, IN | 2005 |
| Andrzej Zajac, D.O. | 1396725545 | Family Medicine Physician | Macomb, MI | 2006 |
| Angelique Zajac, FNP-C | 1871350728 | Family Nurse Practitioner | Bedford, TX | 2024 |
| Ann Zajac, DC LCAC DIPLAC | 1730218892 | Acupuncturist | Tinley Park, IL | 2007 |
| Anna Zajac, MD | 1578794335 | Family Medicine Physician | Hillsborough, NJ | 2009 |
| Anne Zajac, PA C | 1104804707 | Medical Physician Assistant | Boardman, OH | 2006 |
| Annette Zajac | 1831734763 | Occupational Therapist | Burr Ridge, IL | 2019 |
| Ashley Zajac, ATC/LAT | 1417585399 | Athletic Trainer | Baltimore, MD | 2020 |
| Brian Zajac | 1629538541 | Mental Health Counselor | Pittsburgh, PA | 2019 |
| Caley Zajac | 1952142713 | Behavior Technician | Waite Park, MN | 2024 |
| Cassandra Zajac, RN | 1164243192 | Ambulatory Care Registered Nurse | Saint Cloud, MN | 2024 |
| Charles Zajac | 1689381832 | Critical Care Medicine Registered Nurse | Albany, NY | 2022 |
| Chelsie Zajac | 1649955212 | Community Health Worker | Saint Louis, MO | 2023 |
| Christopher Zajac, PHARM.D. | 1336510056 | Pharmacist | Milford, PA | 2015 |
| Christopher Zajac, M.D. | 1699708669 | Internal Medicine Physician | Baltimore, MD | 2006 |
| Claudia Zajac, PA-C | 1962120261 | Physician Assistant | Santa Ana, CA | 2022 |
| Colleen Zajac, MSW | 1104572064 | Mental Health Counselor | New Bedford, MA | 2022 |
| Cristiana Zajac | 1841816501 | Licensed Vocational Nurse | San Diego, CA | 2020 |
| Daria Zajac, RDN, LDN | 1326618992 | Registered Dietitian | Palatine, IL | 2021 |
| David Zajac, BS, MA, PH.D. | 1205927381 | Speech-Language Pathologist | Chapel Hill, NC | 2006 |
| David Zajac | 1891570602 | Mental Health Counselor | Oakland Park, FL | 2023 |
| Denise Zajac, LMFT | 1316386766 | Marriage & Family Therapist | Eagan, MN | 2013 |
| Diane Zajac | 1962196071 | Clinical Social Worker | Washington, MI | 2023 |
| Donald Zajac | 1720146129 | General Practice Dentistry | Grapevine, TX | 2006 |
| Dorothy Zajac, MD | 1972592210 | Internal Medicine Physician | Chester, IL | 2005 |
| Edward Zajac, MD | 1265406060 | Interventional Cardiology Physician | Sioux City, IA | 2006 |
| Edward Zajac | 1366018954 | Counselor | Lebanon, PA | 2021 |
| Elizabeth Zajac, DPT | 1336665413 | Physical Therapist | Winter Haven, FL | 2017 |
| Emily Zajac | 1508792706 | Behavior Technician | Aurora, IL | 2026 |
| Emily Zajac, PHARMD | 1831731785 | Pharmacist | Webster, WI | 2019 |
| Emily Zajac, DO | 1861805590 | Obstetrics & Gynecology Physician | Novi, MI | 2014 |
| Emma Zajac, RBT | 1487410627 | Behavior Technician | Morton Grove, IL | 2024 |
| Erica Zajac, LCSW | 1619229507 | Clinical Social Worker | Brooklyn, NY | 2012 |
| Felix Zajac | 1568832103 | Social Worker | Hines, IL | 2015 |
| Frances Zajac, NP | 1841518792 | Acute Care Nurse Practitioner | Shelby Twp, MI | 2010 |
| Gregory Zajac, CCC-SLP | 1871229674 | Speech-Language Pathologist | Pickerington, OH | 2022 |
| Gretchen Zajac, PA-C | 1013386101 | Physician Assistant | Ann Arbor, MI | 2015 |
| Hubert Zajac, DPT | 1437906831 | Physical Therapist | Hermitage, TN | 2024 |
| Jacek Zajac, M.D. | 1396817912 | Endocrinology, Diabetes & Metabolism Physician | Lombard, IL | 2006 |
| James Zajac, DDS | 1912055179 | General Practice Dentistry | Downers Grove, IL | 2007 |
| Jamie Zajac, D.C. | 1316281025 | Chiropractor | Arvada, CO | 2012 |
| Jan Zajac | 1255259339 | Clinical Psychologist | Shelby Township, MI | 2026 |
| Janelle Zajac, PA-C | 1548088941 | Physician Assistant | Rockford, MI | 2024 |
| Jannifer Zajac, PA-C | 1639624059 | Physician Assistant | Miami, FL | 2016 |
| Jason Zajac, ATC | 1518231265 | Athletic Trainer | Birmingham, AL | 2012 |
| Jenifer Zajac | 1023422359 | Clinical Social Worker | Williamsburg, MA | 2014 |
| Jenna Zajac | 1780233783 | Physical Therapist | Boston, MA | 2019 |
| Jennifer Zajac, M.S. | 1215305321 | Marriage & Family Therapist | San Diego, CA | 2015 |
| Jennifer Zajac, D.O. | 1396057782 | Child & Adolescent Psychiatry Physician | Hartford, CT | 2010 |
| Jennifer Zajac | 1609965565 | Women's Health Nurse Practitioner | Fort Drum, NY | 2006 |
| Jennifer Zajac, M.D | 1801781745 | Student in an Organized Health Care Education/Training Program | Detroit, MI | 2025 |
| Jessica Zajac | 1073158218 | Physician Assistant | West Milford, NJ | 2019 |
| Jocelyn Zajac, MD | 1558823575 | Surgery Physician | Madison, WI | 2019 |
| John Zajac, CRNA | 1083660138 | Certified Registered Nurse Anesthetist | Boardman, OH | 2006 |
| John Zajac, PT | 1336174481 | Physical Therapist | Scottsdale, AZ | 2006 |
| John Zajac, LADC, LSW | 1679960793 | Addiction (Substance Use Disorder) Counselor | Perham, MN | 2015 |
| Jordan Zajac, MD | 1790623361 | Student in an Organized Health Care Education/Training Program | Portland, ME | 2026 |
| Joseph Zajac, DPT | 1922582089 | Physical Therapist | Baltimore, MD | 2018 |
| Joseph Zajac, DDS | 1932258738 | Dentist | Downers Grove, IL | 2007 |
| Joshua Zajac | 1841023140 | Physical Therapist | Norfolk, VA | 2024 |
| Joy Zajac, PNP | 1689879645 | Pediatric Nurse Practitioner | Fort Worth, TX | 2007 |
| Julia Zajac | 1477200749 | Behavior Technician | Mountlake Terrace, WA | 2022 |
| Kai Zajac, PA | 1114575081 | Physician Assistant | Lompoc, CA | 2019 |
| Kaiten Zajac, MS, RD, LDN | 1811860547 | Registered Dietitian | Kenner, LA | 2025 |
| Kara Zajac, D.C. | 1508879735 | Chiropractor | Dawsonville, GA | 2006 |
| Karen Zajac, NP | 1164699633 | Adult Health Nurse Practitioner | Roseville, CA | 2008 |
| Kari Zajac, PHARMD | 1770099863 | Pharmacist | Bridgeville, PA | 2017 |
| Katherine Zajac, O.D. | 1215370143 | Optometrist | Kent, OH | 2013 |
| Kathleen Zajac, PT | 1700913597 | Physical Therapist | Rochester, NY | 2007 |
| Kathryn Zajac | 1366576183 | Social Worker | Freeport, NY | 2007 |
| Katya Zajac, MAAT | 1043688443 | Art Therapist | New Haven, CT | 2015 |
| Kayla Zajac | 1093362287 | Occupational Therapist | Santa Rosa Beach, FL | 2019 |
| Kaylin Zajac | 1841981388 | Behavior Technician | Galesburg, MI | 2023 |
| Kelly Zajac, PTA | 1336883842 | Physical Therapy Assistant | Aurora, IL | 2022 |
| Kelsee Zajac, MD | 1346090842 | Student in an Organized Health Care Education/Training Program | Columbus, OH | 2024 |
| Kiersten Zajac | 1134544539 | Pediatric Occupational Therapist | San Diego, CA | 2014 |
| Kimberly Zajac, CCC-SLP/A | 1093785073 | Speech-Language Pathologist | Quincy, MA | 2006 |
| Kimberly Zajac | 1477193522 | Counselor | Waterloo, NY | 2020 |
| Krista Zajac, APRN, CNP | 1831669365 | Nurse Practitioner | Arlington Heights, IL | 2018 |
| Kristyn Zajac, PHD | 1861744476 | Psychologist | Charleston, SC | 2012 |
| Kyle Zajac, DC | 1629837612 | Chiropractor | Mount Pleasant, WI | 2024 |
| Laura Zajac, PHD | 1588378020 | Clinical Psychologist | Wexford, PA | 2023 |
| Lauren Zajac, MD, MPH | 1720366875 | Student in an Organized Health Care Education/Training Program | New York, NY | 2011 |
| Lauren Zajac, PA-C | 1861469801 | Physician Assistant | Philipsburg, PA | 2006 |
| Lea Zajac | 1497526602 | Mental Health Counselor | Brooklyn, NY | 2024 |
| Lio Zajac, LPC | 1437018876 | Mental Health Counselor | Manitou Springs, CO | 2026 |
| Logan Zajac | 1164361580 | Certified Registered Nurse Anesthetist | East Lansing, MI | 2026 |
| Lyndsey Zajac | 1881131894 | Family Nurse Practitioner | Jeffersonville, IN | 2017 |
| Marcie Zajac | 1457821407 | Family Nurse Practitioner | Las Vegas, NV | 2018 |
| Marcin Zajac, R.P.T. | 1174827836 | Physical Therapist | Madison Hts, MI | 2011 |
| Margery Zajac | 1679782783 | Occupational Therapy Assistant | South Windsor, CT | 2007 |
| Maria Zajac, R.N. | 1235452194 | Registered Nurse | Hauppauge, NY | 2010 |
| Marisa Zajac, DPT | 1528814076 | Physical Therapist | Park Ridge, IL | 2024 |
| Marissa Zajac, D.O. | 1710367446 | Neuromusculoskeletal Medicine & OMM Physician | Fort Worth, TX | 2015 |
| Mark Zajac, P.T. | 1528037934 | Physical Therapist | Hilton Head, SC | 2006 |
| Martha Zajac, PH.D. | 1548990112 | Psychiatry Physician | Boston, MA | 2022 |
| Maryeileen Zajac | 1114511367 | Nurse Practitioner | Chicago, IL | 2021 |
| Matthew Zajac | 1942723424 | Occupational Therapist | Austin, TX | 2017 |
| Natalie Zajac, L.AC. | 1144470691 | Acupuncturist | Greenwood Village, CO | 2008 |
| Nathan Zajac, MD | 1477873529 | Internal Medicine Physician | Nashville, TN | 2010 |
| Nicholas Zajac, FNP-C | 1740111079 | Family Nurse Practitioner | La Mesa, CA | 2026 |
| Nicole Zajac, RN | 1306669361 | Emergency Registered Nurse | Gary, IN | 2024 |
| Paige Zajac, RN | 1679046437 | Registered Nurse | Manistee, MI | 2019 |
| Pamela Zajac, CRNA | 1972879591 | Certified Registered Nurse Anesthetist | Saginaw, MI | 2012 |
| Patricia Zajac | 1063776193 | Massage Therapist | Mercer Island, WA | 2012 |
| Patricia Zajac, MA, CCC-SLP | 1629214424 | Speech-Language Pathologist | Bronx, NY | 2008 |
| Patricia Zajac, LMSW | 1689731101 | Clinical Social Worker | Howell, MI | 2007 |
| Patricia Zajac, CNP | 1932172137 | Pediatric Nurse Practitioner | Minnetonka, MN | 2006 |
| Paul Zajac, MD | 1407038748 | Emergency Medicine Physician | Odessa, TX | 2007 |
| Paul Zajac, CCC-SLP | 1528354891 | Speech-Language Pathologist | Tallahassee, FL | 2011 |
| Peter Zajac, DO | 1477110419 | Surgery Physician | Moses Lake, WA | 2019 |
| Peter Zajac, D.O. | 1952512238 | Family Medicine Physician | Pikeville, KY | 2007 |
| Priscilla Zajac | 1922584010 | Student in an Organized Health Care Education/Training Program | Wheaton, IL | 2018 |
| Rachel Zajac, MHC | 1639422082 | Mental Health Counselor | Brooklyn, NY | 2012 |
| Richard Zajac, M.D. | 1699734673 | Internal Medicine Physician | Wasilla, AK | 2006 |
| Robert Zajac, MD | 1013907963 | Infectious Disease Physician | San Antonio, TX | 2005 |
| Robert Zajac, MD | 1578551636 | Pediatrics Physician | Eden Prairie, MN | 2005 |
| Robert Zajac, D.D.S | 1689757585 | Dentist | Dyer, IN | 2006 |
| Roberta Zajac, CRNA | 1093799116 | Certified Registered Nurse Anesthetist | Phoenix, AZ | 2005 |
| Samantha Zajac | 1770065708 | Case Manager/Care Coordinator | Dublin, OH | 2018 |
| Sandra Zajac, DPM | 1518586999 | Podiatrist | Jacksonville, FL | 2020 |
| Sara Zajac, LICSW | 1770904732 | Clinical Social Worker | Seattle, WA | 2013 |
| Sarah Zajac, MT-BC, NMT | 1457870420 | Music Therapist | Middlefield, OH | 2017 |
| Sarah Zajac | 1639590771 | Social Worker | Mt Pleasant, MI | 2013 |
| Sean Zajac | 1508397159 | Student in an Organized Health Care Education/Training Program | Boca Raton, FL | 2017 |
| Serena Zajac | 1538844659 | Mental Health Counselor | Kingston, NY | 2023 |
| Slade Zajac, APN-CNP | 1558153197 | Nurse Practitioner | Arlington Heights, IL | 2025 |
| Stephanie Zajac | 1770357857 | Pharmacist | Islandia, NY | 2023 |
| Stephen Zajac, D.C. | 1518053545 | Chiropractor | Buffalo, NY | 2006 |
| Sylvia Zajac | 1588487417 | Mental Health Counselor | Bridgewater, MA | 2024 |
| Thaddeus Zajac, DPT | 1659520070 | Orthopedic Physical Therapist | Wayne, NJ | 2008 |
| Thomas Zajac, D.M.D. | 1174667513 | General Practice Dentistry | Altoona, PA | 2007 |
| Thomas Zajac, PA-C | 1487880803 | Physician Assistant | Watertown, NY | 2009 |
| Timothy Zajac, DMD | 1538299102 | General Practice Dentistry | Webster, MA | 2007 |
| Trevor Zajac, LPTA | 1023606324 | Physical Therapy Assistant | Asheville, NC | 2021 |
| Trevor Zajac, MD | 1831942226 | Neurology with Special Qualifications in Child Neurology Physician | Grand Rapids, MI | 2024 |
| Tyler Zajac, LAT, ATC | 1760878409 | Athletic Trainer | Louisville, KY | 2015 |
| Valerie Zajac | 1962845644 | Mental Health Counselor | Thornton, CO | 2013 |
| Victor Zajac, APRN | 1134768666 | Family Nurse Practitioner | Chicago, IL | 2020 |
| Walter Zajac, MD | 1679651343 | Gastroenterology Physician | Roseville, CA | 2006 |
| Zachary Zajac, PHARMD | 1487344263 | Pharmacist | Rancho Cucamonga, CA | 2023 |
| Zachary Zajac, PT, DPT | 1578164489 | Physical Therapist | Lansdale, PA | 2020 |
| Zachary Zajac, DO | 1750065876 | Family Medicine Physician | Wayne, MI | 2023 |
| Sonya Zajac Lopez | 1164013298 | Personal Care Attendant | Henderson, NV | 2021 |
| Nicholas Zajac-Batell, PHARMD | 1427652643 | Pharmacist | Clearwater, FL | 2020 |
| Laura Zajac-Cox, PT, NCS | 1881729440 | Neurology Physical Therapist | Atlanta, GA | 2007 |
| Malgorzata Zajac-Krupinski, PTA | 1083070874 | Physical Therapy Assistant | Downers Grove, IL | 2016 |
| Paul Zajaceskowski | 1831280320 | Clinical Social Worker | Syracuse, NY | 2006 |
| Alexander Zajack, MD | 1063161107 | Pediatrics Physician | Brattleboro, VT | 2022 |
| Lydia Zajackowski, D.C. | 1104394824 | Chiropractor | Leavenworth, WA | 2018 |
| Mark Zajackowski, MD | 1578857264 | General Practice Physician | Chicago, IL | 2011 |
| Chad Zajacs | 1285903484 | Certified Registered Nurse Anesthetist | Pittsburgh, PA | 2011 |
| Tiffany Zajacs, CRNP | 1497239651 | Family Nurse Practitioner | Pittsburgh, PA | 2018 |
| Tess Zajacz, R.N. | 1710335997 | Acute Care Nurse Practitioner | Cleveland, OH | 2016 |
| Bernadette Zajaczkowski | 1194486266 | Physical Therapy Assistant | Palos Park, IL | 2021 |
| Melinda Zajaczkowski | 1053036442 | Home Health Aide | Chardon, OH | 2022 |
| Monica Zajaczkowski, OTR/L | 1396121141 | Pediatric Occupational Therapist | Evanston, IL | 2015 |
| Nicholas Zajak, MA, LCPC | 1871864074 | Mental Health Counselor | Arlington Heights, IL | 2012 |
| Allison Zajakala, PA-C | 1720781883 | Physician Assistant | Coeur D Alene, ID | 2023 |
| Anna Zajakowski, DPT | 1265265284 | Physical Therapist | Fayetteville, AR | 2024 |
| Amy Zajakowski Uhll, LCPC | 1053394437 | Professional Counselor | Chicago, IL | 2005 |
| Azia Zajanc | 1437988037 | Counselor | Boise, ID | 2024 |
| David Zajanc | 1780085043 | Clinical Social Worker | Eureka, CA | 2014 |
| Margaret Zajanc, DMD | 1801015433 | General Practice Dentistry | Pocatello, ID | 2007 |
| David Zajano, M.D. | 1255390159 | Family Medicine Physician | Baltimore, MD | 2006 |
| Emily Zajano, MD | 1285810531 | Pediatric Emergency Medicine (Pediatrics) Physician | Manchester, NH | 2008 |
| Alan Zajarias, MD | 1679696579 | Interventional Cardiology Physician | Saint Louis, MO | 2007 |
| Therese Zajaros, MA | 1710382015 | Clinical Psychologist | Flint, MI | 2014 |
| Rachel Zajas, FNP-C | 1831076348 | Family Nurse Practitioner | Murfreesboro, TN | 2025 |
| Jor-El Zajatz | 1407312465 | Professional Counselor | Portland, OR | 2019 |
| Aimee Zajc, MS, RD, LDN | 1316378193 | Registered Dietitian | Elmhurst, IL | 2013 |
| Donna Zajc, RN | 1578862520 | Administrator Registered Nurse | Cleveland, OH | 2011 |
| Aleksander Zajchowski, PHARMD | 1417739905 | Pharmacist | Benton, IL | 2023 |
| Amanda Zajchowski, APRN | 1982381646 | Family Nurse Practitioner | Live Oak, FL | 2023 |
| Joseph Zajchowski, MD | 1992751572 | Emergency Medicine Physician | Durango, CO | 2006 |
| Rachel Zajchowski | 1952750283 | Physical Therapist | Essex Junction, VT | 2016 |
| Sarah Zajd, MD | 1447889423 | Emergency Medical Services (Emergency Medicine) Physician | New Port Richey, FL | 2020 |
| Emily Zajda, AMFT | 1033687587 | Marriage & Family Therapist | Downers Grove, IL | 2018 |
| Marzena Zajda, LCPC | 1730476912 | Mental Health Counselor | Boise, ID | 2011 |
| Paige Zajda, NURSE | 1184484909 | Ambulatory Care Registered Nurse | Kalamazoo, MI | 2024 |
| Alyssa Zajdel | 1730957085 | Physician Assistant | Alpine, CA | 2023 |
| Alyssa Zajdel, PHD | 1811489966 | Psychologist | Milwaukee, WI | 2018 |
| Amanda Zajdel | 1578435186 | Athletic Trainer | Coopersburg, PA | 2025 |
| Anna Zajdel, OTR | 1013312958 | Occupational Therapist | Puyallup, WA | 2014 |
| Barbara Zajdel, D.O. | 1801896469 | Neuromusculoskeletal Medicine & OMM Physician | Farmington Hills, MI | 2005 |
| Courtney Zajdel, PA-C | 1295264489 | Physician Assistant | North Huntingdon, PA | 2017 |
| Eric Zajdel, BS | 1689899759 | Addiction (Substance Use Disorder) Counselor | Taylor, MI | 2007 |
| Erik Zajdel | 1487289674 | Case Manager/Care Coordinator | Valdosta, GA | 2020 |
| Grazyna Zajdel, MD | 1467560375 | Obstetrics & Gynecology Physician | Grosse Pointe, MI | 2006 |
| Jean Zajdel | 1295408094 | Mental Health Counselor | Concord, NC | 2021 |
| Jessica Zajdel, RN | 1619802774 | Emergency Registered Nurse | Vacaville, CA | 2026 |
| Kristin Zajdel, LMT, EMT | 1942707518 | Massage Therapist | Avon, IN | 2018 |
| Laura Zajdel, NP | 1548774904 | Family Nurse Practitioner | Towson, MD | 2017 |
| Matthew Zajdel, MD | 1447547195 | Family Medicine Physician | Johnstown, PA | 2011 |
| Nicholas Zajdel, MD | 1629430210 | Dermatology Physician | Brookfield, WI | 2016 |
| Rebecca Zajdel | 1154860757 | Counselor | Indiana, PA | 2017 |
| Ruth Zajdel, PH.D. | 1063640209 | Clinical Child & Adolescent Psychologist | Westminster, MD | 2009 |
| Sean Zajdel, CRNA | 1982261137 | Certified Registered Nurse Anesthetist | Philadelphia, PA | 2019 |
| Traci Zajdel, LMFT | 1881035012 | Marriage & Family Therapist | Valdosta, GA | 2013 |
| William Zajdel, DO | 1487686168 | Emergency Medicine Physician | Allentown, PA | 2006 |
| Kristine Zajdlik, L.M.S.W. | 1831318427 | Social Worker | Lexington, KY | 2007 |
| Steven Zajdlik, DO | 1437945789 | Student in an Organized Health Care Education/Training Program | Lansing, MI | 2025 |
| Sivinee Zajdman, LCSW | 1386879435 | Clinical Social Worker | Encino, CA | 2009 |
| Margan Zajdowicz, M.D., M.P.H | 1851362297 | Pediatric Infectious Diseases Physician | Bethesda, MD | 2006 |
| Christina Zajdzinski, DC | 1376389569 | Chiropractor | Amelia Island, FL | 2024 |
| Katie Zajechowski, PA | 1043595713 | Physician Assistant | Naples, FL | 2011 |
| Alexa Zajecka, MD | 1770105520 | Student in an Organized Health Care Education/Training Program | Greenville, NC | 2020 |
| John Zajecka, M.D. | 1275661399 | Psychiatry Physician | Skokie, IL | 2007 |
| Alyssa Zajeski | 1083494686 | Occupational Therapy Assistant | Joliet, IL | 2023 |
| Michelle Zajeski | 1689214918 | Speech-Language Pathologist | Orland Park, IL | 2020 |
| Susan Zajeski, R.K.T. | 1356354450 | Kinesiotherapist | Orland Park, IL | 2006 |
| Witold Zajewski, M.D. | 1700824604 | Family Medicine Physician | Chicago, IL | 2006 |
| Michael Zajfert, MD | 1740581263 | Psychiatry Physician | Federal Way, WA | 2010 |
| Regina Zajia, DDS,MS | 1669549531 | General Practice Dentistry | Ann Arbor, MI | 2006 |
| Haley Zajic, COTA | 1215294319 | Occupational Therapy Assistant | Overbrook, KS | 2012 |
| Sarah Zajic | 1023584547 | Occupational Therapist | Merriam, KS | 2018 |
| Aaron Zajicek, PHARMD | 1538018619 | Pharmacist | Sitka, AK | 2026 |
| Adrianne Zajicek, LCSW | 1962269837 | Clinical Social Worker | Harrisonburg, VA | 2024 |
| Alicia Zajicek, M.S., CCC-SLP | 1215306519 | Speech-Language Pathologist | Wilber, NE | 2015 |
| Anna Zajicek, M.D. | 1518195668 | Diagnostic Radiology Physician | Omaha, NE | 2009 |
| Anne Zajicek, M.D., PHARM.D. | 1588724348 | Pediatrics Physician | Bethesda, MD | 2006 |
| Connie Zajicek, M.D. | 1093026320 | Psychiatry Physician | Houston, TX | 2010 |
| Daniel Zajicek, PAC | 1437146198 | Physician Assistant | Appleton, WI | 2005 |
| David Zajicek, RPH | 1417368481 | Pharmacist | Gilroy, CA | 2014 |
| Garrett Zajicek, DC | 1366208753 | Chiropractor | Bellevue, NE | 2024 |
| Jami Zajicek, PA-C, MD | 1609305523 | Student in an Organized Health Care Education/Training Program | Tampa, FL | 2017 |
| John Zajicek, P.T. | 1366418279 | Physical Therapist | St Louis Park, MN | 2006 |
| Jon Zajicek, DDS | 1396719837 | General Practice Dentistry | Grand Island, NE | 2006 |
| Kerry Zajicek, M.D. | 1215290143 | Anesthesiology Physician | Edina, MN | 2012 |
| Kristen Zajicek, B.C.B.A. | 1558711036 | Behavior Analyst | Temple, TX | 2016 |
| Lisa Zajicek, LMSW | 1649085390 | Clinical Social Worker | Lubbock, TX | 2025 |
| Nadia Zajicek, RPH | 1487065165 | Pharmacist | Salinas, CA | 2014 |
| Rachel Zajicek, DSW, LCSW | 1205255734 | Clinical Social Worker | Joliet, IL | 2014 |
| Richard Zajicek, O.D. | 1255479358 | Optometrist | Springfield, IL | 2007 |
| Samuel Zajicek | 1720543705 | Physical Therapist | Mesa, AZ | 2019 |
| Sara Zajicek, MD | 1235197708 | Diagnostic Radiology Physician | Plano, TX | 2006 |
| Stephanie Zajicek | 1063354926 | Speech-Language Pathologist | Glencoe, MN | 2026 |
| Susan Zajicek, LMSW | 1447402623 | Clinical Social Worker | Cortlandt Manor, NY | 2008 |
| Tessa Zajicek, LPC | 1609613199 | Professional Counselor | Denver, CO | 2024 |
| Barbara Zajicek-Daggett, DDS | 1316099872 | Dentist | Wilmar, MN | 2007 |
| Molly Zajicek-Stokebrand, PA-C | 1871339622 | Medical Physician Assistant | Boys Town, NE | 2024 |
| Breanna Zajichek, PA-C | 1659937738 | Physician Assistant | Wausau, WI | 2019 |
| Donald Zajick, MD | 1841258597 | Diagnostic Radiology Physician | Abington, PA | 2006 |
| Albert Zajko, MD | 1568438737 | Specialist | Pittsburgh, PA | 2006 |
| Alexandra Zajko | 1992314710 | Mental Health Counselor | Leominster, MA | 2020 |
| Ashley Zajkowski | 1720845373 | Registered Nurse | Appleton, WI | 2024 |
| Edward Zajkowski, M.D.,MPH | 1770580938 | Pediatric Adolescent Medicine Physician | Teaneck, NJ | 2005 |
| Iwona Zajkowski, DMD | 1477114007 | General Practice Dentistry | Boaz, AL | 2019 |
| James Zajkowski, RPH | 1255484614 | Pharmacist | New Richmond, WI | 2007 |
| Jeffrey Zajkowski, LPC | 1942674395 | Professional Counselor | Rockford, IL | 2015 |
| Julian Zajkowski, M.D.;PA-C | 1215102926 | Medical Physician Assistant | Palm Springs, CA | 2008 |
| Laura Zajkowski, LCSW | 1013497122 | Clinical Social Worker | Cedarburg, WI | 2018 |
| Laura Zajkowski, OTR | 1255132676 | Occupational Therapist | Durham, NC | 2025 |
| Mark Zajkowski, DDS,MD | 1366432189 | Oral and Maxillofacial Surgery (Dentist) | South Portland, ME | 2005 |
| Megan Zajkowski | 1407720055 | Critical Care Medicine Registered Nurse | Warrensville Heights, OH | 2025 |
| Morgan Zajkowski, LCSW | 1932759180 | Clinical Social Worker | Bronx, NY | 2019 |
| Shannon Zajkowski | 1144160508 | Massage Therapist | Appleton, WI | 2026 |
| Sonila Zajmi, LMHC | 1356978365 | Mental Health Counselor | Bloomington, IN | 2020 |
| Kristin Zajo, LGC | 1174975346 | Genetic Counselor (M.S.) | Columbus, OH | 2016 |
| McKenzie Zajonc, CN | 1720363666 | Health Educator | Seattle, WA | 2011 |
| Megan Zajonc | 1891571741 | Behavior Technician | Draper, UT | 2023 |
| Susan Zajonc, RN, MS, NCC, LMHC | 1861483836 | Registered Nurse | Spokane, WA | 2005 |
| Timothy Zajonc, MD | 1336117779 | Otolaryngology Physician | Johnson City, TN | 2006 |
| Yesenia Zajonc | 1275370728 | Case Manager/Care Coordinator | Syracuse, NY | 2024 |
| Abby Zak | 1871125617 | Physician Assistant | Traverse City, MI | 2020 |
| Agnieszka Zak, DO | 1972124279 | Student in an Organized Health Care Education/Training Program | Cleveland, OH | 2020 |
| Albert Zak, D.D.S. | 1598847717 | General Practice Dentistry | Fairport, NY | 2006 |
| Aleksandra Zak, DMD | 1285136333 | Student in an Organized Health Care Education/Training Program | Bronx, NY | 2018 |
| Alexa Zak, DO | 1922702190 | Family Medicine Physician | Landrum, SC | 2023 |
| Alexandra Zak, PNP | 1033763958 | Pediatric Nurse Practitioner | Guilford, CT | 2019 |
| Alexandra Zak, MASTERS | 1295524353 | Case Manager/Care Coordinator | Norman, OK | 2025 |
| Alexis Zak | 1588393144 | Speech-Language Pathologist | Addison, TX | 2022 |
| Allen Zak, D.C. | 1013981125 | Chiropractor | Sun City Center, FL | 2006 |
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).