Seth David Williams , PA-C
Physician Assistant β’ Tacoma, WA
Madigan Army Medical Center 9040 Jackson Ave
Tacoma, WA 984310001
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
Madigan Army Medical Center 9040 Jackson Ave
Tacoma, WA 984310001
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021β2025.
NPI first issued
2018
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Tacoma and Washington
324 active clinicians are listed under Physician Assistant with a practice address in Tacoma, WA (3,718 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Tacoma
9.3% of these 324 clinicians have the CMS telehealth indicator.
42.6% of these 324 clinicians are listed by CMS as accepting Medicare assignment.
Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-04-14NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
NUCC Taxonomy Code: 171000000X
Active duty military health care providers not otherwise classified who need to be separately identified for operational, clinical, or administrative processes.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Psychiatric/Mental Health
Advanced Practice Registered Nurse
Radiology - Diagnostic Radiology
Doctor of Medicine (M.D.)
Pathology - Anatomic Pathology & Clinical Pathology
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Physician Assistant
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at MADIGAN ARMY MEDICAL CENTER 9040 JACKSON AVE, TACOMA, WA 984310001 (Tel: 2534770998)
Registered at 257 GATSBY DR, RAEFORD, NC 283768421 (Tel: 9109877454)
NPI status registered as active in NPPES database
Registered at BLDG C-1722 TAGATAY DR, FORT BRAGG, NC 28307 (Tel: 9109078282)
Registered at 2208 WESTHAVEN DR, FAYETTEVILLE, NC 283035313
Recorded as SETH WILLIAMS, PA-C
Physician Assistant (license number reported to NPPES: None 1153418)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Tacoma
- Jesus Cazares
- Adam Dinius, PA-C
- Jason Rodgers, PA-C
- Irene Chege, PA-C
- Katie Sayers, PA-C
- Grant Yelliott, PA-C
Mailing Address
257 Gatsby Dr
Raeford, NC 283768421
Phone: 9109877454