Doctor profile · Federal record
Dr. Trenton Williams, PH.D.
Psychologist · Tacoma, WA
- NPI 1124164645
- 19 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
5909 Orchard St W
Tacoma, WA 984673824
(253) 475-6021
fax (253) 474-1871
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- January 23, 2009
- Specialty taxonomy
- 103T00000X — NUCC code
- State license (1)
- Washington #PY00001678
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124164645. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
163
Distinct HCPCS
2
Medicare allowed
$18,823
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90834 |
Psychotherapy, 45 minutes | 123 | 28 | $98 | |
90791 |
Psychiatric diagnostic evaluation | 40 | 40 | $169 |
In context: peer comparison
Among 4 peers in Tacoma Psychologist, average services per provider: 122. This provider delivers 1.3× the peer median.Frequently asked questions
What is Dr. Trenton Williams's medical specialty?
Dr. Trenton Williams practices Psychologist in Tacoma, WA.
Where does Dr. Trenton Williams practice?
Dr. Trenton Williams practices at 5909 Orchard St W, Tacoma, WA 984673824. Office phone: 2534756021.
What is Dr. Trenton Williams's NPI?
Dr. Trenton Williams's National Provider Identifier (NPI) is 1124164645, issued by NPPES.
What procedures does Dr. Trenton Williams commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90834); Psychiatric diagnostic evaluation (HCPCS 90791). Source: CMS Medicare Physician & Other Practitioners file.