1. Home
  2. Directory
  3. Washington
  4. Seattle
  5. Physician Assistant
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. O. L. SESCHILLIE PA
NPI 1023076726
Physician Assistant - Medical in Seattle, WA

Active since May 02, 2006
1660 S COLUMBIAN WAY, SEATTLE, WA 98108(206) 764-2457(206) 764-2192 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mr. O. L. Seschillie Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. O. L. SESCHILLIE PA (NPI 1023076726) is an individual medical provider in Seattle, Washington, licensed in Washington (PA10001894) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1023076726
Entity TypeIndividualMale
Primary Taxonomy363AM0700X
Provider Legal NameMR. O. L. SESCHILLIECredential: PA
Location Address1660 S COLUMBIAN WAYSeattle, WA 98108-1532
Mailing Address8118 16th Ave SwSeattle, WA 98106-1848 · (206) 658-1428 · Fax (206) 764-2192
Phone(206) 764-2457
Fax(206) 764-2192
Sole ProprietorNo
Enumeration DateMay 2, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1023076726 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
License✔ Licensed in WA · PA10001894
1660 S COLUMBIAN WAY, Seattle, WA 98108
Open in Google Maps ↗

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SARAH BASTAWROUS DO
Radiology (Diagnostic Radiology)
1660 S COLUMBIAN WAY, DIAGNOSTIC IMAGING, S-RAD-114
SEATTLE, WA 98108
King County (312) 450-5258
PATRICK PATTERSON LPN
Licensed Practical Nurse
1660 S COLUMBIAN WAY
SEATTLE, WA 98108
King County (800) 329-8387
DR. VICTORIA SZYDLOWSKI PHD
Psychologist
1660 S COLUMBIAN WAY
SEATTLE, WA 98108
King County (253) 583-1759
MR. DAVID EMERY HALL OTR/L
Occupational Therapist (Human Factors)
1660 S COLUMBIAN WAY
SEATTLE, WA 98108
King County (206) 277-1593
MR. MICHAEL H. SHAW LICSW
Social Worker (Clinical)
1660 S COLUMBIAN WAY
SEATTLE, WA 98108
King County (206) 277-1176
MS. CYNTHIA ANN ARROWOOD RN
Registered Nurse
1660 S COLUMBIAN WAY
SEATTLE, WA 98108
King County (206) 764-2542
DR. JULIE EMIKO TAKASUGI M.D.
Radiology (Diagnostic Radiology)
1660 S COLUMBIAN WAY, DEPT. RADIOLOGY S-113, PSVAHCS
SEATTLE, WA 98108
King County (206) 764-2444
MS. LAURA C HEARD RN, MS, CRRN-A
Clinical Nurse Specialist
1660 S COLUMBIAN WAY, #128
SEATTLE, WA 98108
King County (206) 277-3302

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is O. Seschillie's NPI number?

The NPI number for O. Seschillie is 1023076726. It was assigned to this individual provider in the NPPES registry on May 2, 2006.

Where is O. Seschillie located?

O. Seschillie practices at 1660 S Columbian Way, Seattle, WA 98108. The listed phone number is (206) 764-2457.

What is O. Seschillie's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

When was this NPI record last updated?

The NPPES record for O. Seschillie was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.