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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 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: July 19, 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
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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.

MS. RAYLENE FELLOWS CANBY PA-C
Physician Assistant
1660 S COLUMBIAN WAY, 112/OTO
SEATTLE, WA 98108
King County (206) 764-2359
PATTY JO LYMAN PA-C
Physician Assistant (Medical)
1660 S COLUMBIAN WAY, SCI-128
SEATTLE, WA 98108
King County (206) 764-2552
MS. MARY M. WEENIKE ARNP
Nurse Practitioner (Adult Health)
1660 S COLUMBIAN WAY, MAIL STOP S-111-DERM
SEATTLE, WA 98108
King County (206) 764-2305
MS. SANDRA LEE ABRAHAMSON ARNP
Nurse Practitioner (Adult Health)
1660 S COLUMBIAN WAY
SEATTLE, WA 98108
King County (206) 277-4200
MAYUMI HORIBE M.D.
Anesthesiology
1660 S COLUMBIAN WAY, MAIL STOP:S-112-ANES
SEATTLE, WA 98108
King County (206) 570-2198
THOMAS MCDONOUGH
Physician Assistant (Surgical)
1660 S COLUMBIAN WAY
SEATTLE, WA 98108
King County (206) 277-1803
ANTHONY DALE RUDD MD
Emergency Medicine
1660 S COLUMBIAN WAY
SEATTLE, WA 98108
King County (253) 720-9247
MR. ROBERT KEAN TURNER III PA-C
Physician Assistant (Medical)
1660 S COLUMBIAN WAY
SEATTLE, WA 98108
King County (206) 764-2073

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 with the weekly NPPES data releases published by CMS.