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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CATHERINE L WITHROW ARNP
NPI 1740484351
Nurse Practitioner - Family in Seattle, WA

Active since June 14, 2007
509 OLIVE WAY, SUITE 1607, SEATTLE, WA 98101(206) 913-4700(206) 913-4710 Get Directions Write a Review

NPPES record last updated: July 19, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Catherine L Withrow Arnp NPPES

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

CATHERINE L WITHROW ARNP (NPI 1740484351) is an individual family provider in Seattle, Washington, licensed in Washington (AP30007013) and active in the NPI registry since June 2007.

NPPES Registry Identity

NPI1740484351
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameCATHERINE L WITHROWCredential: ARNP
Location Address509 OLIVE WAY, SUITE 1607Seattle, WA 98101-1720
Mailing Address509 Olive Way, Suite 1607Seattle, WA 98101-1720 · (206) 913-4700 · Fax (206) 913-4710
Phone(206) 913-4700
Fax(206) 913-4710
Sole ProprietorNo
Enumeration DateJune 14, 2007
Last NPPES UpdateJuly 19, 2026
✔ NPI 1740484351 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in WA · AP30007013
509 OLIVE WAY, Seattle, WA 98101
Open in Google Maps ↗

Other Identifiers 1

Medicaid9647736WA

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. JOHN LEE STARKS DDS
Dentist
509 OLIVE WAY, STE 720
SEATTLE, WA 98101
King County (206) 623-7783
ROY D CLARK JR. MD
Psychiatry & Neurology (Psychiatry)
509 OLIVE WAY, #531
SEATTLE, WA 98101
King County (206) 682-5203
WALLY W KEGEL DDS MSD PS
Dentist (Periodontics)
509 OLIVE WAY, SUITE 627
SEATTLE, WA 98101
King County (206) 682-9269
MR. FRED L TROUSDALE MSW
Counselor (Mental Health)
509 OLIVE WAY, SUITE 1025
SEATTLE, WA 98101
King County (206) 282-1763
MR. JOHNNIE JOAQUIN LOPEZ LMP
Massage Therapist
509 OLIVE WAY, STE 620
SEATTLE, WA 98101
King County (206) 343-3325
ERIC LEE MARTIN LAC
Acupuncturist
509 OLIVE WAY, SUITE 1401
SEATTLE, WA 98101
King County (206) 402-3813
DR. DAVID W. BRANCH D.D.S.
Dentist (General Practice)
509 OLIVE WAY, SUITE 821
SEATTLE, WA 98101
King County (206) 624-5808
CAROLINE M HERRON, DDS, MSD, PLLC
Dentist (Periodontics)
509 OLIVE WAY, #627
SEATTLE, WA 98101
King County (206) 682-9269

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 Catherine Withrow's NPI number?

The NPI number for Catherine Withrow is 1740484351. It was assigned to this individual provider in the NPPES registry on June 14, 2007.

Where is Catherine Withrow located?

Catherine Withrow practices at 509 Olive Way Suite 1607, Seattle, WA 98101. The listed phone number is (206) 913-4700.

What is Catherine Withrow's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

When was this NPI record last updated?

The NPPES record for Catherine Withrow was last updated on July 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 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.