Dr. Joann K. Thacker, PHD
Dr. Joann K. Thacker is a Psychologist provider (Psychologist) practicing in Silver Spring, MD, registered in the NPPES registry with NPI 1205862406 since 2006. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1205862406 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Joann K. Thacker |
| Credential | PHD |
| Sex | Female |
| Practice address | 11215 OAK LEAF DR, SUITE 108, Silver Spring, MD, 20901 |
| Phone | 3015931315 |
| Fax | 3016814699 |
| Enumeration date | 2006-06-23 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103T00000X | Psychologist | Primary | 01659 | MD |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Copy-ready billing details
Provider: Joann Thacker, PHD NPI: 1205862406 Taxonomy: 103T00000X (Psychologist) Address: 11215 OAK LEAF DR, SUITE 108, Silver Spring, MD, 20901
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1588606099 | Dennis Hilker | Individual | Psychologist | Silver Spring, MD |
| 1487699088 | Nadine Lavender-Petersen | Individual | Clinical Social Worker | Silver Spring, MD |
| 1326075938 | Susan Blum | Individual | Clinical Psychologist | Silver Spring, MD |
| 1689603292 | Susan Klein | Individual | Clinical Psychologist | Silver Spring, MD |
| 1033149562 | Catherine Bergmann | Individual | Psychologist | Silver Spring, MD |
| 1245246008 | Melvin J Stern MD PA | Organization | Psychiatry Physician | Silver Spring, MD |
| 1942312046 | Glenn Hogan | Individual | Psychologist | Silver Spring, MD |
| 1992890065 | Deborah Schmidt | Individual | Clinical Psychologist | Silver Spring, MD |
Verify this record
Cross-check NPI 1205862406 against the authoritative CMS record: view Dr. Joann K. Thacker on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
How do I verify Joann Thacker's NPI record?
Is NPI 1205862406 active?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.