Dr. William Harrison Mellick III, PHD
Dr. William Harrison Mellick III, PHD is a Clinical Psychologist in Charleston, South Carolina. Qualified in 2017, 9 years ago. Practices with University Medical Associates of the Medical University of South Carol, a 1,640-clinician group and accepts Medicare assignment. Licensed in South Carolina.
- Years since qualifying
- 9
- Licensed in
- SC
- In the registry since
- 2022
- Specialties on file
- 5
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
171 Ashley AveCharleston, SC 29425-8908
Phone: (843) 792-1414
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
| Clinical Psychologist (primary) | Taxonomy 103TC0700X · Licence 1542 (SC) |
|---|---|
| Addiction (Substance Use Disorder) Psychologist | Taxonomy 103TA0400X · Licence 1542 (SC) |
| Family Psychologist | Taxonomy 103TF0000X · Licence 1542 (SC) |
| Cognitive & Behavioral Psychologist | Taxonomy 103TB0200X · Licence 1542 (SC) |
| Clinical Child & Adolescent Psychologist | Taxonomy 103TC2200X · Licence 1542 (SC) |
Record details
| NPI number | 1154040293 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | PHD |
| Sole proprietor | No |
| NPI enumerated | August 23, 2022 |
| Last updated in NPPES | September 9, 2025 |
| Certification date | September 9, 2025 |
Medicare enrollment
| Medicare specialty | CLINICAL PSYCHOLOGIST |
|---|---|
| Medical school | OTHER |
| Graduated | 2017 (9 years in practice) |
| Group practice | University Medical Associates Of The Medical University Of South Carol — 1640 clinicians |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
Other providers in Charleston
-
Lydia Haren, MD
2900 Evatt Ln Ste 106, Charleston, SC 29405-8700 · (843) 745-5153
-
Dr. Elizabeth Jane Santa Ana, PHD
171 Ashley Ave, Charleston, SC 29425-0100 · (843) 792-1414
-
Dr. Joshua P. Smith, PHD
67 President St # 4NORTH Ofc 437, Charleston, SC 29425-8908 · (843) 792-5759