Dr. Joyce Fivehouse Derby, PHD
Dr. Joyce Fivehouse Derby, PHD is a Clinical Psychologist in Olney, Maryland. Qualified in 1993, 33 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Maryland.
- Years since qualifying
- 33
- Licensed in
- MD
- In the registry since
- 2007
- Specialties on file
- 3
What do these letters mean?
- PHD — Doctor of Philosophy
- A research doctorate. In healthcare it usually sits alongside a clinical licence.
Practice location Address checks out
2915 Olney Sandy Spring Rd Ste BOlney, MD 20832-3502
Phone: (301) 570-7500
Show map & directions
Directions in Google Maps · Apple Maps · OpenStreetMap
Pin is approximate — placed at the ZIP-code centre, not the exact door.
Specialties & licences
| Psychologist (primary) | Taxonomy 103T00000X · Licence 03079 (MD) |
|---|---|
| Clinical Psychologist | Taxonomy 103TC0700X · Licence 03079 (MD) |
| Clinical Child & Adolescent Psychologist | Taxonomy 103TC2200X · Licence 03079 (MD) |
Record details
| NPI number | 1538200399 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Female |
| Credentials | PHD |
| Sole proprietor | Yes |
| NPI enumerated | February 12, 2007 |
| Last updated in NPPES | September 11, 2025 |
| Mailing address | 4900 Continental Dr, Olney, MD 20832-2972 |
Medicare enrollment
| Medicare specialty | CLINICAL PSYCHOLOGIST |
|---|---|
| Medical school | OTHER |
| Graduated | 1993 (33 years in practice) |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
| Telehealth | Offers telehealth services |
Other providers in Olney
-
Mel English, PSYD, LP
18101 Prince Philip Dr, Olney, MD 20832-1514 · (301) 774-8882
-
Dr. Laurie Harmon, PSYD
3300 Olney Sandy Spring Rd Ste 340, Olney, MD 20832-3306 · (301) 570-7500
-
Dr. Rachel Michele Oringher, PSYD
17405 Buehler Rd, Olney, MD 20832-2367 · (240) 994-9742