NPI Portal NPI Lookup & Verification

Oncology Services Pllc

Oncology Services Pllc is a healthcare organization registered as Radiation Oncology Physician in Walla Walla, WA, holding Type 2 (organization) NPI 1497083331 since 2009. The authorized official on file is Carolyn Pedersen, Clerk.

✓ Active NPI ✓ Valid NPI checksum

NPI 1497083331
Entity type Organization (Type 2)
Legal business name Oncology Services Pllc
Other name <Unavail>
Practice address 401 W POPLAR ST, Walla Walla, WA, 99362
Phone 5095225700
Fax 5095254878
Enumeration date 2009-12-04
Last updated in NPPES 2009-12-10

Authorized official

Name Carolyn Pedersen
Title Clerk
Phone 5095252220

Taxonomy & classification

Taxonomy code Specialty Primary License State
2085R0001X Radiation Oncology Physician Primary MD00028934 WA

Other identifiers

Identifier Type State Issuer
1109297 Medicaid WA
0187354 Other WA LABOR AND INDUSTRIES
034186 Medicaid OR
Copy-ready billing details
Provider: Oncology Services Pllc
NPI: 1497083331
Taxonomy: 2085R0001X (Radiation Oncology Physician)
Address: 401 W POPLAR ST, Walla Walla, WA, 99362

Providers at this address

NPI Name Type Specialty Location
1720083686 Timothy Caudill Individual Anesthesiology Physician Walla Walla, WA
1619972577 Kurt Schlicker Individual Anesthesiology Physician Walla Walla, WA
1770581332 Robert Parks Individual Emergency Medicine Physician Walla Walla, WA
1467438044 James Buratto Individual Diagnostic Radiology Physician Walla Walla, WA
1154396109 Ronald Stiller Individual Pulmonary Disease Physician Walla Walla, WA
1245280494 Rachelle Hartman Individual Physical Therapist Walla Walla, WA
1174576094 Sara Hellberg Individual Nurse Practitioner Walla Walla, WA
1497700975 Suwong Wongsuwan Individual Cardiovascular Disease Physician Walla Walla, WA

Verify this record

Cross-check NPI 1497083331 against the authoritative CMS record: view Oncology Services Pllc on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

What type of organization is Oncology Services Pllc?
Oncology Services Pllc is registered in NPPES as a Radiation Oncology Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2009-12-10.