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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

KATHERINE J BLACKWELDER
NPI 1376468637
Speech-Language Pathologist in Corvallis, OR

Active since August 13, 2026
1555 SW 35TH ST, CORVALLIS, OR 97333(541) 757-5811 Get Directions Write a Review

NPPES record added: August 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Katherine J Blackwelder NPPES

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

KATHERINE J BLACKWELDER (NPI 1376468637) is an individual speech-language pathologist provider in Corvallis, Oregon, licensed in Oregon (13275) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1376468637
Entity TypeIndividual
Primary Taxonomy235Z00000X
Provider Legal NameKATHERINE J BLACKWELDER
Location Address1555 SW 35TH STCorvallis, OR 97333-1130
Mailing Address1555 Sw 35th StCorvallis, OR 97333-1130 · (541) 757-5811
Phone(541) 757-5811
Sole ProprietorYes
Enumeration DateAugust 13, 2026
NPPES CertifiedAugust 13, 2026
✔ NPI 1376468637 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
License✔ Licensed in OR · 13275
Definition
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
1555 SW 35TH ST, Corvallis, OR 97333
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Other Providers at the Same Location NPPES 18

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

EMMA MATTEO RN
Registered Nurse
1555 SW 35TH ST
CORVALLIS, OR 97333
Benton County (541) 757-5811
CHRISTOPHER ANTHONY BUEFORD
Social Worker (Clinical)
1555 SW 35TH ST
CORVALLIS, OR 97333
Benton County (541) 766-4860
EMILY MURAVEZ RN
Registered Nurse
1555 SW 35TH ST
CORVALLIS, OR 97333
Benton County (541) 757-5700
KELLY WARD RN
Registered Nurse
1555 SW 35TH ST
CORVALLIS, OR 97333
Benton County (541) 757-3803
KRISTYNE M STRINGHAM
Speech-Language Pathologist
1555 SW 35TH ST
CORVALLIS, OR 97333
Benton County (541) 757-5811
MRS. ELIZABETH JO SHERIDAN QMHP
Counselor (Mental Health)
1555 SW 35TH ST
CORVALLIS, OR 97333
Benton County (541) 757-5811
CHRISTOPHER THOMAS CAVAGNARO
Counselor (Mental Health)
1555 SW 35TH ST
CORVALLIS, OR 97333
Benton County (541) 757-5811
RAINA BUNDY-WURTZ MS, CCC-SLP
Speech-Language Pathologist
1555 SW 35TH ST
CORVALLIS, OR 97333
Benton County (541) 757-3935

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 Katherine Blackwelder's NPI number?

The NPI number for Katherine Blackwelder is 1376468637. It was assigned to this individual provider in the NPPES registry on August 13, 2026.

Where is Katherine Blackwelder located?

Katherine Blackwelder practices at 1555 SW 35th St, Corvallis, OR 97333. The listed phone number is (541) 757-5811.

What is Katherine Blackwelder's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

When was this NPI record last updated?

The NPPES record for Katherine Blackwelder was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.