PhD — Doctor of Philosophy
81,155 active NPI-registered providers list the PhD credential. Pick another credential in the rail, or open the full search to filter by specialty and location.
Matching providers
81,155
Active in NPPES
9,260,504
Registry vintage
June 2026
Sample PhD providers
| Provider | Specialty | Location | NPI |
|---|---|---|---|
| Patricia TaimangloPHD | Clinical Psychologist | Tamuning, GU | 1003000761 |
| Nereida Hillyer-WrightPH.D. | Speech-Language Pathologist | Kensington, MD | 1003001595 |
| Kristen OhlenforstPH.D. | Clinical Psychologist | Dallas, TX | 1003002015 |
| Jennifer McewanPH.D. | Clinical Psychologist | Alexandria, VA | 1003003427 |
| Alison KaraszPHD | Clinical Psychologist | Brooklyn, NY | 1003005638 |
| Carole PattersonPH.D. | Clinical Social Worker | New York, NY | 1003007584 |
| Lori Siegel HausmanPHD | Clinical Psychologist | Pittsburgh, PA | 1003008335 |
| Maja BergmanPHD | Clinical Psychologist | New York, NY | 1003008780 |
| Martin SobelPH.D. | Clinical Child & Adolescent Psychologist | Setauket, NY | 1003008798 |
| Anita KatzPH..D | Psychologist | New York, NY | 1003009598 |
| Carolyn Cavanaugh ToftPH.D. | Clinical Psychologist | Phoenix, AZ | 1003010455 |
| Emily ChenPH.D. | Clinical Psychologist | Fullerton, CA | 1003011230 |
| Douglas BrackmannPH.D. | Psychologist | San Diego, CA | 1003011495 |
| Randy FingerhutPH.D. | Cognitive & Behavioral Psychologist | Wynnewood, PA | 1003011552 |
| Bruce HutchisonPH.D. | Clinical Psychologist | Annapolis, MD | 1003011669 |
| Julie LandisPH.D. | School Psychologist | Bellaire, TX | 1003012295 |
| Luis LavienaPHD | Cognitive & Behavioral Psychologist | New York, NY | 1003012394 |
| Wendy HellerPH.D. | Clinical Neuropsychologist | Champaign, IL | 1003012790 |
| Kristie EngelPH.D. | Clinical Psychologist | Austin, TX | 1003013053 |
| Karen LadanyePH.D. | Clinical Psychologist | Missoula, MT | 1003013574 |
| Elaine RadoPH.D. | Clinical Psychologist | Lincolnwood, IL | 1003014804 |
| Christopher NikolaidisPHD | Clinical Psychologist | Newport Beach, CA | 1003016197 |
| Ralph AllsoppPH.D. | Clinical Psychologist | Atlanta, GA | 1003016684 |
| Mary ThompsonPHD | Psychologist | Louisville, KY | 1003017591 |
| Bruce MillerPHD | Clinical Psychologist | Ardmore, PA | 1003018151 |
| Austin DeslauriersPH.D | Cognitive & Behavioral Psychologist | Great Bend, KS | 1003018532 |
| Joyce UlofoshioPH.D. | Clinical Psychologist | Las Vegas, NV | 1003020371 |
| Dan RavivPHD | Mental Health Counselor | New York, NY | 1003020728 |
| George WhitsonPH.D. | Clinical Psychologist | Rockville Centre, NY | 1003020926 |
| Marilyn JohnsonPH.D | Clinical Psychologist | Chicago, IL | 1003021056 |
| Paul GedoPH.D. | Clinical Psychologist | Rockville, MD | 1003021924 |
| Harold GillisPHD | Psychologist | Milledgeville, GA | 1003022047 |
| John StewartPH.D. | Psychologist | Portland, ME | 1003022617 |
| Grace KimPH.D. | Health Service Psychologist | Somerville, MA | 1003023748 |
| Kevin FavorPH.D. | Psychologist | Forest Hill, MD | 1003024043 |
| Eduardo DiazPH.D | Psychologist | Village of Palmetto Bay, FL | 1003024373 |
| Kimberly BrooksPH.D. | Psychologist | Silver Spring, MD | 1003025123 |
| Alicia FrancoPH.D. | Health Service Psychologist | Lajas, PR | 1003025768 |
| Mary HayesPH.D. | Psychologist | Golden Valley, MN | 1003026006 |
| Shauna KloomokPH.D. | Psychologist | Santa Barbara, CA | 1003027145 |
| George WilliamsPH.D. | Counseling Psychologist | Atlanta, GA | 1003028044 |
| Douglas LarsonPH.D. | Perfusionist | Tucson, AZ | 1003028317 |
| Stephanie PerezPH.D. | Clinical Psychologist | Cortland, NY | 1003028341 |
| Nicholas De Los ReyesPH.D. | Clinical Psychologist | Show Low, AZ | 1003028721 |
| Richard MaguePHD | Counselor | Worthington, OH | 1003031048 |
| Michael BroderPH.D. | Psychologist | Philadelphia, PA | 1003031154 |
| Gregory MurphyPH.D. | Clinical Psychologist | Leesburg, VA | 1003031865 |
| Eric KirschnerPHD | Clinical Psychologist | Morristown, NJ | 1003032145 |
| Myra BerneckerPH.D. | Clinical Psychologist | Kentfield, CA | 1003033267 |
| Zoe PetersonPH.D. | Clinical Psychologist | St. Louis, MO | 1003033572 |
| Dennis UnruhPHD | Clinical Psychologist | Madera, CA | 1003033721 |
| Brent TaylorPH.D. | Marriage & Family Therapist | San Diego, CA | 1003034166 |
| Melvyn LewinPHD | Clinical Psychologist | Palos Verdes Estates, CA | 1003034554 |
| Peter CogswellPH.D. | Clinical Psychologist | Buffalo, NY | 1003034992 |
| Trudi ZaplacPH.D. | Clinical Psychologist | San Antonio, TX | 1003037441 |
| Devon WhiteheadPH.D. | Psychologist | Coon Rapids, MN | 1003037458 |
| Julie LipovskyPH.D. | Clinical Psychologist | Isle of Palms, SC | 1003037805 |
| Sandra JensenPH.D. | Marriage & Family Therapist | Lindon, UT | 1003037862 |
| Carole A. KantPH.D. | Psychologist | Atlanta, GA | 1003037888 |
| Nancie SpectorPH.D. | Clinical Child & Adolescent Psychologist | New Canaan, CT | 1003039470 |
Source: CMS NPPES Data Dissemination (June 2026).