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

OREGON ONCOLOGY SPECIALISTS, LLP
NPI 1013953025
Internal Medicine - Hematology & Oncology in Salem, OR

Active since June 20, 2006CLIA Certified · 2 labs
875 OAK ST SE, SUITE 4030, SALEM, OR 97301(503) 561-6444(503) 561-6442 Get Directions Write a Review

NPPES record last updated: October 28, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 28, 2026, Sep 7, 2023, Mar 20, 2023 and 2 more (5 updates tracked since 2015).

About Oregon Oncology Specialists, Llp NPPES

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

OREGON ONCOLOGY SPECIALISTS, LLP (NPI 1013953025), doing business as Oregon Infectious Disease Specialists, is a healthcare organization registered as a hematology & oncology in Salem, Oregon and active in the NPI registry since June 2006. The organization holds 2 active CLIA laboratory certificates, maintains 4 additional practice locations, and lists William Crawford Pierce, Partner, as its authorized official.

NPPES Registry Identity

NPI1013953025
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameOREGON ONCOLOGY SPECIALISTS, LLP
Location Address875 OAK ST SE, SUITE 4030Salem, OR 97301-3975
Mailing Address875 Oak St Se, Suite 4030Salem, OR 97301-3975 · (503) 561-6444 · Fax (503) 561-6442
Fax(503) 561-6442
Organization SubpartNo
Authorized OfficialWilliam Crawford PiercePartner · (503) 561-6444
Enumeration DateJune 20, 2006
Last NPPES UpdateOctober 28, 20265 updates tracked since enumeration
NPPES CertifiedOctober 28, 2026
✔ NPI 1013953025 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X
Also ListedInternal Medicine · RheumatologyTaxonomy 207RR0500X
875 OAK ST SE, Salem, OR 97301

Other Names 5

Doing Business AsOregon Infectious Disease Specialists
Doing Business AsOregon Rheumatology Specialists
Doing Business AsOregon Specialty Group
Doing Business AsOregon Specialty Infusion
Former Legal Business NameHematology Oncology Of Salem, Llp

Secondary Practice Locations 4

Location 1500 Liberty St SE Ste 400Salem, OR 97301-3890 · Phone (503) 561-6444 · Fax (503) 561-6440
Location 2404 Welch St.Silverton, OR 97381 · Phone (503) 561-6444 · Fax (503) 561-6440
Location 33025 Ryan Dr SESalem, OR 97301-5057 · Phone (503) 485-0350 · Fax (503) 561-6442
Location 41475 Mount Hood AveWoodburn, OR 97071-9066 · Phone (503) 561-6444 · Fax (503) 561-6440

Group Practice 2

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP
Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Oregon Oncology Specialists, Llp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

35

Medicare enrollment records show 35 clinicians reassign Medicare billing to Oregon Oncology Specialists, LLP, which bills Medicare for the services they deliver. Of these, 18 practice at this address and 25 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 7

Nurse Practitioner12
Hematology/Oncology9
Internal Medicine5
Infectious Disease3
Medical Oncology3
Rheumatology2
Hematology1

Nearest to this location (20)

See all 35
Hematology/Oncology
NPI 1508033465
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Hematology
NPI 1770748121
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Hematology/Oncology
NPI 1184718314
875 OAK ST SE SUITE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1801467261
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Medical Oncology
NPI 1851313993
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Hematology/Oncology
NPI 1760043640
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1609155548
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Hematology/Oncology
NPI 1881720068
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1346763430
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Hematology/Oncology
NPI 1639381346
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1376883488
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1679714299
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Hematology/Oncology
NPI 1518922111
875 OAK ST SE SUITE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1033417415
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1477158764
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1043268287
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOSSame address
Hematology/Oncology
NPI 1881788099
875 OAK ST SE SUITE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1295234300
875 OAK ST SE STE 4030
Salem, OR 97301
(503) 561-6444
✔ PECOS✔ Accepts MedicareSame address
Infectious Disease
NPI 1497052393
2720 COMMERCIAL ST SE STE 201
Salem, OR 97302
(908) 405-8741
✔ PECOS✔ Accepts Medicare1.4 mi
Internal Medicine
NPI 1225455686
3025 RYAN DR SE
Salem, OR 97301
(503) 540-9999
✔ PECOS✔ Accepts Medicare1.9 mi
See all 35 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA 2

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Accreditation 38D0975761

Oregon Oncology Specialists · Salem, OR
Active · expires Sep 19, 2027
CLIA Number38D0975761
Laboratory TypePhysician Office
Certificate Effective DateSeptember 20, 2025
Certificate Expiration DateSeptember 19, 2027
Laboratory DirectorCharles Petrunin
Laboratory Phone(503) 561-6462
Laboratory LocationOregon Oncology Specialists875 Oak St SE Suite 4030, Salem, OR 97301
CLIA data matches this NPI record on: Address Name
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Certificate of Accreditation 38D2276270

Oregon Rheumatology Specialists · Salem, OR
Active · expires Jul 31, 2027
CLIA Number38D2276270
Laboratory TypePhysician Office
Certificate Effective DateAugust 1, 2025
Certificate Expiration DateJuly 31, 2027
Laboratory DirectorDr. Kristin Saunders
Laboratory Phone(503) 561-6462
Laboratory LocationOregon Rheumatology Specialists3025 Ryan Drive SE, Salem, OR 97301
CLIA data matches this NPI record on: Address Name
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

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 Oregon Oncology Specialists, LLP's NPI number?

The NPI number for Oregon Oncology Specialists, LLP is 1013953025. It was assigned to this organization in the NPPES registry on June 20, 2006. The provider is doing business as Oregon Infectious Disease Specialists, Oregon Rheumatology Specialists, Oregon Specialty Group and Oregon Specialty Infusion. Additional names are listed in the Other Names section above.

Where is Oregon Oncology Specialists, LLP located?

Oregon Oncology Specialists, LLP is located at 875 Oak St SE Suite 4030, Salem, OR 97301. The listed phone number is (503) 561-6444.

What is Oregon Oncology Specialists, LLP's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Oregon Oncology Specialists, LLP enrolled in Medicare?

Yes. Oregon Oncology Specialists, LLP is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Oregon Oncology Specialists, LLP?

According to the CMS Revalidation Reassignment List (October 2026 release), 35 clinicians in 7 Medicare specialties reassign their Medicare billing to Oregon Oncology Specialists, LLP. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (12), Hematology/Oncology (9) and Internal Medicine (5). Of these, 18 practice at this address and 25 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Oregon Oncology Specialists, LLP hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does Oregon Oncology Specialists, LLP accept?

Health plans from Moda Health Plan, Inc. list Oregon Oncology Specialists, LLP as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Oregon Oncology Specialists, LLP was last updated on October 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.