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ROBERT C QUACKENBUSH M.D.
NPI 1962458877
Internal Medicine - Medical Oncology in Walla Walla, WA

Active since May 25, 2006PECOS Enrolled
401 W POPLAR ST, WALLA WALLA, WA 99362(509) 522-5700(509) 522-5705 Get Directions Write a Review

NPPES record last updated: June 26, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Robert C Quackenbush M.d. NPPES

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

ROBERT C QUACKENBUSH M.D. (NPI 1962458877) is an individual medical oncology provider in Walla Walla, Washington, licensed in Washington (MD00039975) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1962458877
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameROBERT C QUACKENBUSHCredential: M.D.
Location Address401 W POPLAR STWalla Walla, WA 99362-2846
Mailing AddressPo Box 32Liberty Lake, WA 99019-0032 · (509) 522-5700 · Fax (509) 522-5705
Phone(509) 522-5700
Fax(509) 522-5705
Sole ProprietorNo
Enumeration DateMay 25, 2006
Last NPPES UpdateJune 26, 2013
✔ NPI 1962458877 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in WA · MD00039975
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
Also ListedSpecialistTaxonomy 174400000X · License MD00039975 (WA)
401 W POPLAR ST, Walla Walla, WA 99362
Open in Google Maps ↗

Other Identifiers 6

Medicaid227516OR
Medicaid8060599ID
Medicare PINGAB39430WA
OtherP00057996WA · Rrmc
Medicaid1118421WA
Medicare PINR121095OR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Robert C Quackenbush M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Robert Quackenbush reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Commonspirit Oregon
36 mi
Multi-Specialty
2801 ST ANTHONY WAY
Pendleton, OR 97801
  • Reassigned Medicare billing, Oregon enrollment
  • 19 clinicians in this Medicare group
NPI 1831169903 (541) 276-5121

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99362 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$172.80 typical visit price
range $57.27 – $172.80
Typical copayment $43.20 (range $14.31 – $43.20)
Most-billed visit code 99205
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier11 claims11 services$19.35 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier11 claims11 services$108.50 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

PATRICK R SMART ARNP
Nurse Practitioner
401 W POPLAR ST, SLEEP MEDICINE CENTER
WALLA WALLA, WA 99362
Walla Walla County (509) 522-5946
JENNIFER SIMPSON
Registered Nurse
401 W POPLAR ST
WALLA WALLA, WA 99362
Walla Walla County (817) 933-1868
JAMES WILLIAM ROSSMAN MD
Anesthesiology
401 W POPLAR ST
WALLA WALLA, WA 99362
Walla Walla County (509) 897-2002
DR. ROBERT JOHN BRAWDERS PHARMD
Pharmacist
401 W POPLAR ST
WALLA WALLA, WA 99362
Walla Walla County (509) 897-2055
KRISTA NEUENDORFF OTR/L
Occupational Therapist
401 W POPLAR ST
WALLA WALLA, WA 99362
Walla Walla County (509) 897-5022
NORA KEOUGH COTA/L
Occupational Therapy Assistant
401 W POPLAR ST, REBAB SERVICE
WALLA WALLA, WA 99362
Walla Walla County (509) 897-2100
JULIA THERESE CARTER MD
Physical Medicine & Rehabilitation
401 W POPLAR ST
WALLA WALLA, WA 99362
Walla Walla County (509) 897-2390
DR. PHILIP A GREEN MD
Emergency Medicine
401 W POPLAR ST, PSMMC ER
WALLA WALLA, WA 99362
Walla Walla County (509) 522-5802

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 Robert Quackenbush's NPI number?

The NPI number for Robert Quackenbush is 1962458877. It was assigned to this individual provider in the NPPES registry on May 25, 2006.

Where is Robert Quackenbush located?

Robert Quackenbush practices at 401 W Poplar St, Walla Walla, WA 99362. The listed phone number is (509) 522-5700.

What is Robert Quackenbush's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Robert Quackenbush enrolled in Medicare?

Yes. Robert Quackenbush is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Robert Quackenbush's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Quackenbush reassigns Medicare benefits to Commonspirit Oregon (Pendleton, OR). The 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 Robert Quackenbush's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Robert Quackenbush accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Regence BlueCross BlueShield of Oregon list Robert Quackenbush 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 Robert Quackenbush was last updated on June 26, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.