Providers Valerie Callahan to Traci Callandrillo, PH.D.
300 individual NPIs in the federal registry, part 3,170 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 |
|---|---|---|---|---|
| Valerie Callahan | 1184409500 | Professional Counselor | Sandy Springs, GA | 2023 |
| Valerie Callahan | 1427535467 | Nurse Practitioner | Pearland, TX | 2018 |
| Valerie Callahan | 1902100852 | Physical Therapist | West Orange, NJ | 2011 |
| Valerie Callahan, OTR/L | 1982052551 | Occupational Therapist | Lynchburg, VA | 2016 |
| Venus Callahan, FNP | 1760484364 | Family Nurse Practitioner | Pascagoula, MS | 2005 |
| Vicki Callahan, MD | 1073669669 | Anesthesiology Physician | Greeley, CO | 2007 |
| Victoria Callahan | 1205465416 | Professional Counselor | Denver, CO | 2020 |
| Victoria Callahan, FNP | 1285489682 | Family Nurse Practitioner | Cleveland, OH | 2024 |
| Victoria Callahan | 1548831209 | Counselor | Seattle, WA | 2021 |
| Victoria Callahan, PA-C | 1568937126 | Physician Assistant | Missoula, MT | 2018 |
| Victoria Callahan, M.A. | 1932537677 | Addiction (Substance Use Disorder) Counselor | Dartmouth, MA | 2013 |
| Wayne Callahan, QMHP | 1487597480 | Mental Health Counselor | La Grande, OR | 2026 |
| Wendell Callahan, PHD | 1174141717 | School Psychologist | San Diego, CA | 2020 |
| Wendy Callahan, COTA/L | 1033388194 | Occupational Therapy Assistant | Geneva, OH | 2008 |
| Wendy Callahan, L.V.N. | 1669683363 | Licensed Vocational Nurse | Escondido, CA | 2007 |
| Wenjie Callahan | 1285104364 | Massage Therapist | Kahului, HI | 2018 |
| William Callahan, D.D.S. | 1023187028 | General Practice Dentistry | Memphis, TN | 2006 |
| William Callahan, D.D.S. | 1063636827 | Dentist | Huntsville, AL | 2007 |
| William Callahan | 1194292318 | Mental Health Counselor | Orange, CA | 2018 |
| William Callahan, PA-C | 1194766675 | Physician Assistant | Fort Myers, FL | 2006 |
| William Callahan, RPH | 1225133192 | Pharmacist | Manchester, NH | 2006 |
| William Callahan, MD | 1356344535 | Specialist | Gainesville, GA | 2005 |
| William Callahan, D.O. | 1386907434 | Family Medicine Physician | Blue Bell, PA | 2012 |
| William Callahan, MD | 1396858718 | Sports Medicine (Family Medicine) Physician | Federal Way, WA | 2006 |
| William Callahan, MD | 1538130513 | Psychiatry Physician | Aliso Viejo, CA | 2006 |
| William Callahan, O.D. | 1568536357 | Optometrist | Marshfield, MA | 2006 |
| William Callahan | 1588281810 | Mental Health Counselor | Tupelo, MS | 2020 |
| William Callahan | 1649136193 | Addiction (Substance Use Disorder) Counselor | Plymouth, MA | 2025 |
| William Callahan, DPT | 1700295532 | Physical Therapist | Springfield, MO | 2014 |
| William Callahan, D.D.S. | 1831192400 | General Practice Dentistry | Seneca, SC | 2005 |
| William Callahan | 1871665711 | Geriatric Psychiatry Physician | Edina, MN | 2006 |
| Yume Callahan | 1487335592 | Student in an Organized Health Care Education/Training Program | El Monte, CA | 2023 |
| Zachary Callahan | 1366394843 | Physical Therapist | Richmond, IN | 2026 |
| Zachary Callahan, M.D. | 1679969067 | Surgery Physician | Nashville, TN | 2015 |
| Zachary Callahan, RN | 1740623941 | Registered Nurse | Rochester, NY | 2013 |
| Zebulun Callahan | 1528557204 | Athletic Trainer | Hays, KS | 2018 |
| Zoe Callahan, BSN, MSN, CPNP-PC | 1710567037 | Pediatric Nurse Practitioner | Ocoee, FL | 2021 |
| Sheila Callahan Butler, MD | 1811071012 | Pediatrics Physician | Worcester, MA | 2006 |
| Mary Callahan Dupont, DO | 1306692074 | Student in an Organized Health Care Education/Training Program | Billings, MT | 2024 |
| Barry Callahan Jr., BA | 1679257109 | Professional Counselor | Oxford, MI | 2023 |
| Lauren Callahan Massarone | 1740137405 | Clinical Social Worker | North Providence, RI | 2026 |
| Jennifer Callahan Passmore, APRN | 1548047376 | Adult Health Nurse Practitioner | Lakeland, FL | 2023 |
| Jessica Callahan Wait, CNM | 1750996138 | Advanced Practice Midwife | Williamsport, PA | 2020 |
| Lucy Callahan-Au, LPCC | 1639738966 | Professional Counselor | Columbus, OH | 2019 |
| Eileen Callahan-Coolbaugh, PT | 1356072722 | Physical Therapist | Holly Springs, NC | 2022 |
| Yvonne Callahan-Fowler | 1356551774 | Counselor | Baltimore, MD | 2007 |
| Casey Callahan-Hager | 1033255419 | Case Manager/Care Coordinator | Green River, WY | 2007 |
| Kaitlyn Callahan-King, L.C.S.W. | 1326073156 | Clinical Social Worker | Spruce Pine, NC | 2006 |
| Priscilla Callahan-Lyon, M.D. | 1164432423 | Internal Medicine Physician | Gaithersburg, MD | 2006 |
| Kerry Callahan-Mandulak, MA, CCC-SLP | 1144405432 | Speech-Language Pathologist | Durham, NC | 2008 |
| Kayla Callahan-Peck | 1679180566 | Maternal Newborn Registered Nurse | Brockport, NY | 2020 |
| Gary Callahan-Smith | 1336859404 | Clinical Social Worker | San Leandro, CA | 2022 |
| Jacqueline Callahan-Stewart, CASAC,LADC | 1831322650 | Addiction (Substance Use Disorder) Counselor | Danbury, CT | 2009 |
| Sharon Callahan-Wormworth, RN | 1962938084 | Psychiatric/Mental Health Registered Nurse | Charleston, SC | 2017 |
| Mary Rose Callain, LCSW, LADC | 1164737482 | Clinical Social Worker | Cornville, ME | 2010 |
| Erin Callaio, B.S. | 1285808899 | Mental Health Counselor | Denver, CO | 2008 |
| Lutricia Callair, LCSW | 1235256793 | Clinical Social Worker | Raleigh, NC | 2007 |
| Amanda Callais, RPH | 1093182958 | Pharmacist | Raceland, LA | 2015 |
| Angela Callais, LICSW | 1831684943 | Clinical Social Worker | Minneapolis, MN | 2018 |
| Brandon Callais, DPT | 1972809622 | Physical Therapist | Slidell, LA | 2011 |
| Caitlin Callais, SLP INTERN | 1457979890 | Pathology Specialist/Technologist | Austin, TX | 2020 |
| Casie Callais, DPT | 1659654895 | Physical Therapist | Slidell, LA | 2011 |
| Emily Callais, LPC | 1568882561 | Professional Counselor | Raceland, LA | 2014 |
| Gene Callais, MD | 1528315280 | Family Medicine Physician | Broussard, LA | 2012 |
| Janey Callais, OT | 1750666988 | Occupational Therapist | Thibodaux, LA | 2011 |
| Jennifer Callais, LCPC | 1598225047 | Mental Health Counselor | Billings, MT | 2019 |
| Jordan Callais | 1558125179 | Physician Assistant | Supply, NC | 2024 |
| Kameron Callais | 1356187710 | Speech-Language Pathologist | Orlando, FL | 2024 |
| Kevin Callais, OT | 1184738460 | Occupational Therapist | Clackamas, OR | 2006 |
| Mary Callais, RN | 1922250463 | Registered Nurse | New Orleans, LA | 2008 |
| Micah Callais, NP | 1225539620 | Pediatric Nurse Practitioner | Thibodaux, LA | 2018 |
| Nicholas Callais, MD | 1275274375 | Student in an Organized Health Care Education/Training Program | Little Rock, AR | 2022 |
| Rebecca Callais, LOTR | 1134545221 | Occupational Therapist | Marrero, LA | 2014 |
| Timothy Callais, PHARM.D | 1346708252 | Pharmacist | Houma, LA | 2019 |
| Victoria Callais | 1275125312 | Case Manager/Care Coordinator | Thibodaux, LA | 2021 |
| Virginia Callais, PT | 1093974453 | Physical Therapist | Covington, LA | 2008 |
| Erica Callais Howell | 1487361606 | Case Manager/Care Coordinator | Thibodaux, LA | 2022 |
| Carlie Callais-Lagarde | 1619779758 | Emergency Medicine Physician | Jackson, MS | 2025 |
| Shelly Callais-Odell | 1871051094 | Mental Health Counselor | Hudson, WI | 2019 |
| Callie Callais-Rusich, FNP-C | 1477124428 | Nurse Practitioner | Lafayette, LA | 2021 |
| Taylor Callais-Rusich, LPC, NCC | 1366911778 | Professional Counselor | Lafayette, LA | 2018 |
| April Callam, MS, OTR/L | 1568162527 | Occupational Therapist | Annapolis, MD | 2023 |
| Craig Callam, APRN, FNP-BC | 1538799747 | Family Nurse Practitioner | Banning, CA | 2020 |
| Fay Callam, LCSW | 1619115425 | Clinical Social Worker | Wellington, FL | 2009 |
| Heather Callam, LCSW | 1558944777 | Clinical Social Worker | Miami, FL | 2021 |
| Jason Callaman, DPT | 1235778101 | Neurology Physical Therapist | Phoenix, AZ | 2019 |
| Frances Callamari, D.P.M. | 1447212527 | Podiatrist | Woodland Park, NJ | 2006 |
| Donna Callamaro, O.T. | 1396876751 | Occupational Therapist | Woburn, MA | 2007 |
| Emma Callamaro | 1376391383 | Plastic and Reconstructive Surgery Physician | Chicago, IL | 2024 |
| Abigail Callan, LPC, LAC, MA | 1235481839 | Professional Counselor | Fort Collins, CO | 2012 |
| Aileen Callan, FNP | 1982043386 | Family Nurse Practitioner | New Hartford, NY | 2013 |
| Alexandra Callan, M.D. | 1922398312 | Orthopaedic Surgery Physician | Dallas, TX | 2011 |
| Allison Callan | 1821975970 | School Psychologist | Rockville, MD | 2025 |
| Allyson Callan | 1699448167 | Behavior Analyst | Greenville, SC | 2021 |
| Andrew Callan, MD | 1326987157 | Student in an Organized Health Care Education/Training Program | New Orleans, LA | 2026 |
| Andrew Callan, D.P.T | 1871026575 | Physical Therapist | Petaluma, CA | 2017 |
| Anthony Callan, M.S., O.D. | 1154339091 | Optometrist | Easton, PA | 2006 |
| Brad Callan, MSPT | 1295772671 | Physical Therapist | Issaquah, WA | 2006 |
| Brittany Callan, PA-C | 1962933440 | Physician Assistant | Scottsdale, AZ | 2017 |
| Brooke Callan, MS, CCC-SLP | 1497270607 | Speech-Language Pathologist | Greenwood, IN | 2017 |
| Bryan Callan | 1508211566 | Specialist | Cullman, AL | 2016 |
| Cara Callan, PA | 1437533445 | Physician Assistant | Lebanon, NH | 2015 |
| Casey Callan | 1720688286 | Pharmacist | Rockmart, GA | 2020 |
| Catherine Callan, APRN | 1861771958 | Adult Health Nurse Practitioner | New Britain, CT | 2011 |
| Cayla Callan, OTR/L | 1780532267 | Occupational Therapist | Clinton, NY | 2026 |
| Ceri Callan, MS | 1477044873 | Speech-Language Pathologist | Ellensburg, WA | 2018 |
| Chelsie Callan, OTR/L | 1164654034 | Community Health Worker | Batavia, NY | 2009 |
| Chloe Callan | 1306528963 | Behavior Technician | Loveland, CO | 2023 |
| Christina Callan, P.A.-C. | 1518052885 | Physician Assistant | Hollywood, FL | 2006 |
| Christopher Callan | 1891144671 | Student in an Organized Health Care Education/Training Program | Bronx, NY | 2016 |
| Claire Callan, MD | 1477355378 | Student in an Organized Health Care Education/Training Program | Denver, CO | 2025 |
| Clare Callan | 1063343564 | Addiction (Substance Use Disorder) Counselor | Portland, OR | 2026 |
| Claudia Callan, L.AC. | 1457555369 | Acupuncturist | Seattle, WA | 2007 |
| Corinne Callan, M.ED. | 1740345586 | Other Technician | Palo Alto, CA | 2006 |
| Craig Callan, MA | 1144624263 | Case Manager/Care Coordinator | Fort Collins, CO | 2014 |
| Craig Callan, PSY.D. | 1740457993 | Clinical Psychologist | Highland Park, NJ | 2008 |
| Daniel Callan, LICSW | 1386767283 | Clinical Social Worker | Westfield, MA | 2007 |
| Daniel Callan, DO/MPH | 1578560512 | Family Medicine Physician | Louisville, KY | 2005 |
| Delaney Callan | 1497311138 | Behavior Technician | Elk Grove, CA | 2019 |
| Diane Callan, MS ED | 1588016307 | Specialist | Pearl River, NY | 2016 |
| Dixie Callan, DPT | 1962782292 | Physical Therapist | Oro Valley, AZ | 2011 |
| Donald Callan, D.D.S. | 1336163542 | Periodontics | Little Rock, AR | 2006 |
| Elizabeth Callan, M.D. | 1063775732 | Neurology Physician | Springfield, OR | 2012 |
| Elizabeth Callan, PA | 1366604894 | Physician Assistant | Ypsilanti, MI | 2008 |
| Emily Callan, MS | 1699501809 | Speech-Language Pathologist | Greenwood, SC | 2024 |
| Eric Callan, CRNA | 1235183674 | Certified Registered Nurse Anesthetist | Memphis, TN | 2006 |
| Erin Callan, LCMHC | 1497352413 | Mental Health Counselor | Kernersville, NC | 2020 |
| Felicia Callan, M.D. | 1518973593 | Obstetrics & Gynecology Physician | Huntington, NY | 2006 |
| George Callan, LMFT | 1447479191 | Marriage & Family Therapist | Seattle, WA | 2007 |
| Gloria Callan, APN-BC | 1417089632 | Family Nurse Practitioner | Trenton, NJ | 2007 |
| Isabelle Callan | 1295530368 | Massage Therapist | Aurora, CO | 2025 |
| Jaime Callan | 1730908427 | Clinical Social Worker | Homer Glen, IL | 2024 |
| James Callan, M.D. | 1194718015 | Orthopaedic Surgery Physician | Takoma Park, MD | 2005 |
| James Callan, M.D. | 1740260538 | Emergency Medicine Physician | Jacksonville, FL | 2006 |
| Jeani Callan, MA | 1003939513 | Counselor | Lompoc, CA | 2007 |
| Jeannine Callan, LPN | 1871391557 | Nurse's Aide | Omaha, NE | 2025 |
| Jesse Callan, MSW, LCSW-C | 1124295605 | Clinical Social Worker | Baltimore, MD | 2008 |
| Jill Callan, PT | 1699745083 | Physical Therapist | Alexandria, VA | 2006 |
| John Callan, C. O. | 1285657411 | Orthotist | Colorado Springs, CO | 2006 |
| Jonathan Callan | 1689119521 | Student in an Organized Health Care Education/Training Program | Baltimore, MD | 2017 |
| Joseph Callan, LCSW | 1154358349 | Clinical Social Worker | Land O Lakes, FL | 2006 |
| Joshua Callan | 1992340400 | Community Health Worker | Los Lunas, NM | 2019 |
| Julia Callan | 1124892138 | Marriage & Family Therapist | Toms River, NJ | 2023 |
| Julie Callan, CRNA | 1831113299 | Certified Registered Nurse Anesthetist | Huntersville, NC | 2006 |
| Kaethe Callan | 1477340966 | Student in an Organized Health Care Education/Training Program | Philadelphia, PA | 2025 |
| Karen Callan, CPNP | 1447681259 | Pediatric Nurse Practitioner | Chicago, IL | 2013 |
| Kathleen Callan | 1215114566 | Counselor | Howell, NJ | 2008 |
| Kathryn Callan, CNP | 1811320419 | Family Nurse Practitioner | Albuquerque, NM | 2013 |
| Katia Callan, MSW, LCSW-C | 1033433131 | Clinical Social Worker | Lutherville, MD | 2010 |
| Katie Callan, LIMHP, CMSW | 1255493250 | Clinical Social Worker | Hastings, NE | 2006 |
| Katrina Callan | 1700722386 | Student in an Organized Health Care Education/Training Program | Baltimore, MD | 2026 |
| Kayleigh Callan, L.AC. | 1255735627 | Acupuncturist | Sparta, NJ | 2014 |
| Kelly Callan, RN | 1164988275 | School Registered Nurse | Lincoln, NE | 2019 |
| Kenzzi Callan | 1417413667 | Personal Care Attendant | Lynnwood, WA | 2019 |
| Kimberly Callan | 1699931907 | Licensed Practical Nurse | Schenectady, NY | 2008 |
| Krystle Callan | 1497592299 | Adult Health Nurse Practitioner | West Islip, NY | 2024 |
| Kylie Callan, MD | 1184484040 | Orthopaedic Surgery Physician | Salt Lake City, UT | 2024 |
| Laryssa Callan | 1699119248 | Specialist | Hicksville, NY | 2013 |
| Laura Callan, DMD | 1114549276 | General Practice Dentistry | Biddeford, ME | 2020 |
| Laura Callan | 1467161331 | Psychiatric/Mental Health Nurse Practitioner | Billings, MT | 2022 |
| Lauren Callan, DMD | 1043931504 | General Practice Dentistry | Portland, OR | 2022 |
| Laurie Callan, APN,CWOCN | 1124177647 | Nurse Practitioner | Rock Falls, IL | 2007 |
| Laurie Callan, LMSW | 1750914842 | Social Worker | Gloversville, NY | 2020 |
| Laurie Callan | 1801665955 | Health & Wellness Coach | Lenexa, KS | 2023 |
| Leah Callan, NP | 1861473977 | Adult Health Nurse Practitioner | Brockton, MA | 2005 |
| Lee Callan | 1689158958 | Physical Therapist | Hatfield, MA | 2018 |
| Leisha Callan, OTR | 1679559850 | Pediatric Occupational Therapist | Barling, AR | 2005 |
| Lindsey Callan | 1013600816 | Massage Therapist | Port Jefferson Station, NY | 2023 |
| Maggie Callan, PA-C | 1841931425 | Physician Assistant | Spokane Valley, WA | 2022 |
| Mark Callan, D.D.S. | 1720022783 | General Practice Dentistry | Salt Lake City, UT | 2006 |
| Mary Callan, NP | 1063428571 | Nurse Practitioner | Rochester, NY | 2006 |
| Matthew Callan, RN | 1194311670 | Registered Nurse | Chattanooga, TN | 2020 |
| Matthew Callan | 1376999177 | Specialist | Upland, CA | 2016 |
| Matthew Callan, DDS, MD | 1992022925 | Oral and Maxillofacial Surgery (Dentist) | Bremerton, WA | 2010 |
| Maureen Callan, MSW | 1619154903 | Clinical Social Worker | Pittsburgh, PA | 2008 |
| Megan Callan, RN, PHN | 1164608642 | Case Management Registered Nurse | Oceanside, CA | 2008 |
| Meghan Callan | 1922979855 | Marriage & Family Therapist | Eau Claire, WI | 2025 |
| Melissa Callan, MSW | 1548290893 | Clinical Social Worker | Pontiac, MI | 2006 |
| Michael Callan, DDS, MS | 1124385448 | Orthodontics and Dentofacial Orthopedics Dentistry | Iowa City, IA | 2012 |
| Michael Callan, D.O. | 1568671964 | Adult Reconstructive Orthopaedic Surgery Physician | Wyandotte, MI | 2007 |
| Nan Callan, LMHC | 1386770436 | Mental Health Counselor | Winter Haven, FL | 2007 |
| Nancy Callan, M.D. | 1407839830 | Obstetrics & Gynecology Physician | Boston, MA | 2005 |
| Nancy Callan, PNP | 1477573822 | Pediatric Nurse Practitioner | Foxboro, MA | 2006 |
| Nicole Callan, MA | 1407113145 | Psychologist | Cedarhurst, NY | 2012 |
| Nicolette Callan, ND | 1114449667 | Naturopath | Seattle, WA | 2017 |
| Noreen Callan, NP | 1083731905 | Nurse Practitioner | Commack, NY | 2007 |
| Olivia Callan | 1780460923 | Speech-Language Pathologist | Pearl River, NY | 2023 |
| Pam Callan, ARNP | 1316323587 | Family Nurse Practitioner | Fleming Island, FL | 2015 |
| Patricia Callan, OTR | 1932428604 | Occupational Therapist | Rochester, NY | 2010 |
| Patrick Callan, DO | 1740920479 | Physician Assistant | Poughkeepsie, NY | 2022 |
| Paul Douglas Callan, PH.D. | 1407953037 | Clinical Psychologist | Fenton, MI | 2006 |
| Rachel Callan, LPC, CRC | 1306709589 | Professional Counselor | Plainville, CT | 2025 |
| Rebecca Callan, PSY.D. | 1699553537 | Psychologist | Baltimore, MD | 2023 |
| Richard Callan, DMD | 1255388245 | Dentist | Augusta, GA | 2006 |
| Richard Callan, M.D. | 1720465982 | Pediatrics Physician | Savannah, GA | 2015 |
| Robert Callan, MFT | 1457472003 | Marriage & Family Therapist | Nevada City, CA | 2007 |
| Roseanne Callan | 1235509936 | Registered Nurse | Newton, MA | 2015 |
| Ryan Callan, PTA | 1497576615 | Physical Therapy Assistant | Thiensville, WI | 2024 |
| Ryan Callan, RYAN R CALLAN | 1740507359 | Student in an Organized Health Care Education/Training Program | Spokane, WA | 2010 |
| Samantha Callan, PA-C | 1922535350 | Physician Assistant | Stanford, CA | 2017 |
| Shannon Callan, ARNP | 1285034173 | Family Nurse Practitioner | Orlando, FL | 2014 |
| Shannon Callan, MS, OTR/L | 1558855981 | Occupational Therapist | Erie, CO | 2018 |
| Stephanie Callan, PHD | 1487518999 | Clinical Psychologist | Philadelphia, PA | 2025 |
| Stephen Callan, DDS | 1700958352 | General Practice Dentistry | Mesa, AZ | 2006 |
| Susan Callan, M.S.W. | 1912009010 | Clinical Social Worker | Oxford, OH | 2006 |
| Tanya Callan, M.S., ED. | 1316131162 | Speech/Language/Hearing Specialist/Technologist | Rochester, NY | 2007 |
| Tara Callan, LPN | 1013289362 | Licensed Practical Nurse | Rochester, NY | 2012 |
| Teresa Callan | 1841760642 | Nurse Practitioner | El Paso, TX | 2018 |
| Thomas Callan, OD | 1043348394 | Optometrist | Walnut Creek, CA | 2007 |
| Thomas Callan, M. D. | 1699911487 | Hematology & Oncology Physician | El Cajon, CA | 2008 |
| Todd Callan, PT | 1336789742 | Physical Therapist | Saint Cloud, MN | 2020 |
| Trissy Callan, LCSW | 1235354598 | Clinical Social Worker | New York, NY | 2007 |
| Vicki Callan, CRNA | 1770509911 | Certified Registered Nurse Anesthetist | Saint Louis, MO | 2006 |
| Whitney Callan | 1619801511 | Case Manager/Care Coordinator | Dublin, OH | 2026 |
| Susanne Callan-Harris, PT MS | 1396846887 | Physical Therapist | Rochester, NY | 2006 |
| Alayna Callanan, PT, DPT | 1518759554 | Physical Therapist | Westminster, CO | 2025 |
| Amanda Callanan, PA | 1508391426 | Physician Assistant | Hudson, NY | 2017 |
| Amy Callanan, OTR | 1306276514 | Pediatric Occupational Therapist | Arnold, MO | 2013 |
| Andrea Callanan, D.C. | 1760432785 | Chiropractor | Springfield, MA | 2006 |
| Angela Callanan, LPC | 1417475567 | Professional Counselor | Fort Collins, CO | 2017 |
| Ann Callanan, LMHC | 1437295326 | Mental Health Counselor | Duxbury, MA | 2007 |
| Anne Callanan | 1043469604 | Clinical Social Worker | Winfield, IL | 2008 |
| Ashley Callanan | 1629610977 | Licensed Practical Nurse | Tacoma, WA | 2019 |
| Ciara Callanan, MD | 1568397305 | Psychiatry Physician | Chicago, IL | 2026 |
| Crystal Callanan | 1881375798 | Student in an Organized Health Care Education/Training Program | Tuscaloosa, AL | 2023 |
| Danielle Callanan, PA-C | 1699256388 | Physician Assistant | Las Vegas, NV | 2018 |
| Danielle Callanan | 1780562819 | Behavior Technician | Newton, MA | 2025 |
| David Callanan, M.D. | 1558360339 | Ophthalmology Physician | Arlington, TX | 2005 |
| David Callanan, BA, CSC-AD | 1588799068 | Addiction (Substance Use Disorder) Counselor | Baltimore, MD | 2007 |
| David Callanan, M.D. | 1760526222 | Psychiatry Physician | Medford, OR | 2007 |
| Deborah Callanan, MD | 1720087703 | Pediatric Emergency Medicine (Pediatrics) Physician | San Antonio, TX | 2005 |
| Deidre Callanan, DC | 1215983226 | Dental Hygienist | Aurora, CO | 2006 |
| Ean Callanan, MD | 1366417156 | Hospitalist Physician | Hyannis, MA | 2006 |
| Elizabeth Callanan | 1558636720 | Mental Health Counselor | Randolph, MA | 2012 |
| Emily Callanan, DPT | 1043813587 | Physical Therapist | Attleboro, MA | 2020 |
| Emily Callanan, APRN | 1093737215 | Family Nurse Practitioner | Suffern, NY | 2006 |
| Emma Callanan | 1205666583 | Behavior Technician | Farmington Hills, MI | 2024 |
| Erin Callanan, OTR/L | 1992109714 | Occupational Therapist | Glen Mills, PA | 2014 |
| Gregory Callanan, DO | 1831625789 | Orthopaedic Surgery Physician | Somers Point, NJ | 2017 |
| James Callanan, O.D. | 1710089651 | Optometrist | Bristol, VA | 2006 |
| Jason Callanan, MSW | 1447070420 | Clinical Social Worker | Edina, MN | 2024 |
| Jessica Callanan, PH.D. | 1861966400 | Clinical Psychologist | New York, NY | 2019 |
| Julie Callanan, M.D. | 1992730089 | Psychiatry Physician | Hyannis, MA | 2006 |
| Justine Callanan, M.ED., OTR/L, CEIS | 1972838290 | Pediatric Occupational Therapist | Mansfield, MA | 2009 |
| Karen Callanan, D.D.S. | 1750596284 | General Practice Dentistry | Wichita, KS | 2007 |
| Katelyn Callanan | 1053033720 | Speech-Language Pathologist | Corning, NY | 2022 |
| Katherine Callanan, MSPT | 1871918458 | Physical Therapist | Boise, ID | 2014 |
| Kathleen Callanan, LPCC | 1063148005 | Mental Health Counselor | West St Paul, MN | 2022 |
| Kathleen Callanan | 1619011418 | Obstetrics & Gynecology Nurse Practitioner | Boulder, CO | 2007 |
| Kathryn Callanan | 1992194633 | Speech-Language Pathologist | Camdenton, MO | 2015 |
| Keith Callanan, MPT | 1902902380 | Physical Therapist | Stoughton, MA | 2006 |
| Kerry Callanan, OTR/L | 1578492914 | Occupational Therapist | Chelmsford, MA | 2026 |
| Kristen Callanan | 1245877273 | Social Worker | Buffalo, NY | 2019 |
| Lana Callanan, MSED | 1790046688 | Specialist | Plainview, NY | 2012 |
| Laura Callanan, D.O. | 1558740993 | Obstetrics & Gynecology Physician | Rochester, NY | 2015 |
| Lawrence Callanan, MD | 1124077680 | Internal Medicine Physician | Saint Paul, MN | 2006 |
| Leslie Callanan, PHD | 1942345723 | Psychologist | Flemington, NJ | 2007 |
| Marian Callanan, CNS | 1265484984 | Clinical Nurse Specialist | Stanford, CA | 2006 |
| Marissa Callanan | 1689240822 | Developmental Therapist | Milford, MA | 2021 |
| Mark Callanan, PT | 1518122654 | Physical Therapist | Lees Summit, MO | 2008 |
| Mark Callanan, MD | 1639515984 | Orthopaedic Surgery Physician | Shreveport, LA | 2013 |
| Megan Callanan, MD,MPH | 1972065589 | Family Medicine Physician | Hollywood, FL | 2019 |
| Mollie Callanan, PT | 1255369849 | Physical Therapist | Gilbert, AZ | 2006 |
| Rachel Callanan | 1295271781 | Mental Health Counselor | Wakefield, MA | 2017 |
| Robert Callanan, O.D. | 1598808461 | Optometrist | Bensalem, PA | 2007 |
| Rochelle Callanan | 1316880297 | Licensed Practical Nurse | Portland, OR | 2026 |
| Sadie Callanan | 1033610035 | Addiction (Substance Use Disorder) Counselor | Chula Vista, CA | 2018 |
| Sarah Callanan, CRNP | 1316079494 | Family Nurse Practitioner | Chester, MD | 2007 |
| Stephanie Callanan, MD | 1770547945 | Obstetrics & Gynecology Physician | Woodbury, MN | 2006 |
| Thomas Callanan, PT | 1225316524 | Physical Therapist | Warrenville, IL | 2011 |
| Tracy Callanan, LICSW | 1861080988 | Clinical Social Worker | Needham, MA | 2021 |
| Tucker Callanan, MD | 1215502877 | Orthopaedic Surgery Physician | Providence, RI | 2021 |
| Vincent Callanan, MD | 1134117203 | Otolaryngology Physician | Akron, OH | 2005 |
| Patrice Callanan-Flagle, LCSWC | 1184121725 | Clinical Social Worker | Timonium, MD | 2018 |
| Ann Calland, D.O. | 1114924107 | Family Medicine Physician | Westerville, OH | 2005 |
| Brett Calland, M.A. | 1154588408 | Counselor | Valparaiso, IN | 2008 |
| Doug Calland, AT | 1376984849 | Athletic Trainer | Galloway, OH | 2013 |
| Emily Calland, GSW | 1639321649 | Social Worker | Shreveport, LA | 2008 |
| James Calland, MD | 1538195227 | Surgical Critical Care Physician | Winchester, VA | 2006 |
| John Calland, D.D.S. | 1013021179 | Endodontics | San Antonio, TX | 2006 |
| Jon Calland, MD | 1245219781 | Anesthesiology Physician | Columbus, OH | 2006 |
| Kristy Calland, DO | 1588939631 | Internal Medicine Physician | Ames, IA | 2012 |
| Magen Calland | 1003107376 | Acute Care Nurse Practitioner | Lynchburg, VA | 2011 |
| Christine Callander, APRN FNP | 1225637168 | Nurse Practitioner | Plano, TX | 2020 |
| David Callander, M.D. | 1225110463 | Psychiatry Physician | Los Angeles, CA | 2006 |
| Emily Callander, LPN | 1154575314 | Licensed Practical Nurse | Yorktown Hts, NY | 2008 |
| Harry Callander | 1881382703 | Behavior Technician | Cumming, GA | 2023 |
| Jacquelyn Callander | 1851929129 | Otolaryngology Physician | Palo Alto, CA | 2020 |
| John Callander | 1215550801 | Student in an Organized Health Care Education/Training Program | Santa Rosa, CA | 2020 |
| Katherine Callander, MD | 1942666292 | Cardiovascular Disease Physician | Salt Lake City, UT | 2015 |
| Lauren Callander, CRNP | 1407305527 | Acute Care Nurse Practitioner | Vestavia, AL | 2016 |
| Matthew Callander, MD | 1568773588 | Family Medicine Physician | Marquette, MI | 2010 |
| Michael Callander, M.D. | 1326487190 | Surgical Critical Care Physician | Fredericksburg, VA | 2013 |
| Natalie Callander, MD | 1649247339 | Hematology (Internal Medicine) Physician | Madison, WI | 2006 |
| Peter Callander, M.D. | 1144316688 | Orthopaedic Surgery Physician | San Francisco, CA | 2006 |
| Sarah Callander, PMHNP-BC | 1639060072 | Psychiatric/Mental Health Nurse Practitioner | Columbus, OH | 2025 |
| Stephanie Callander, MS, CCC-SLP | 1356915383 | Speech-Language Pathologist | Avon, OH | 2021 |
| Susan Callander, MS, CCC-SLP | 1902316169 | Speech-Language Pathologist | Louisville, KY | 2017 |
| Suzanne Callander | 1972173169 | Mental Health Counselor | Anchorage, AK | 2021 |
| Traci Callandrillo, PH.D. | 1447531371 | Counseling Psychologist | Washington, DC | 2011 |
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).