Doctor profile · Federal record
Dr. Seth Williams, PSYD
Clinical Psychologist · Clinical Psychologist · Tigard, OR
- NPI 1851331599
- Accepts Medicare
- 23 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
12442 Sw Scholls Ferry RD, Suite 106
Tigard, OR 972230803
(503) 216-9200 - Mailing address
-
Po Box 3158
Portland, OR 972083158
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- August 1, 2013
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 103TC0700X — NUCC code
- State licenses (2)
- Oregon #2227 · Minnesota #4633
- Medicaid
- MN #729458100
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1851331599. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
416
Distinct HCPCS
3
Medicare allowed
$40,847
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90837 |
Psychotherapy, 1 hour | 269 | 28 | $133 | |
90785 |
Psychiatric services complicated by communication factor | 126 | 25 | $14 | |
90791 |
Psychiatric diagnostic evaluation | 21 | 19 | $156 |
In context: peer comparison
Among 1 peers in Tigard Clinical Psychologist, average services per provider: 138. This provider delivers 3.0× the peer median.Frequently asked questions
What is Dr. Seth Williams's medical specialty?
Dr. Seth Williams practices Clinical Psychologist in Tigard, OR.
Where does Dr. Seth Williams practice?
Dr. Seth Williams practices at 12442 Sw Scholls Ferry RD, Tigard, OR 972230803. Office phone: 5032169200.
What is Dr. Seth Williams's NPI?
Dr. Seth Williams's National Provider Identifier (NPI) is 1851331599, issued by NPPES.
Does Dr. Seth Williams accept Medicare assignment?
Yes. Dr. Seth Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Seth Williams commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837); Psychiatric services complicated by communication factor (HCPCS 90785); Psychiatric diagnostic evaluation (HCPCS 90791). Source: CMS Medicare Physician & Other Practitioners file.