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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.

RADIOLOGY SPECIALISTS OF THE NORTHWEST, PC
NPI 1699759498
Radiology - Diagnostic Radiology in Portland, OR

Active since December 05, 2005
545 NE 47TH AVE, SUITE 215, PORTLAND, OR 97213(503) 731-2900 Get Directions Write a Review

NPPES record last updated: October 19, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Radiology Specialists Of The Northwest, Pc NPPES

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

RADIOLOGY SPECIALISTS OF THE NORTHWEST, PC (NPI 1699759498) is a healthcare organization registered as a diagnostic radiology in Portland, Oregon and active in the NPI registry since December 2005. The organization lists Ronald Kizziar, President, as its authorized official.

NPPES Registry Identity

NPI1699759498
Entity TypeOrganization
Primary Taxonomy2085R0202X
Legal Business NameRADIOLOGY SPECIALISTS OF THE NORTHWEST, PC
Location Address545 NE 47TH AVE, SUITE 215Portland, OR 97213-2238
Mailing AddressPo Box 4000-21Portland, OR 97208 · (503) 731-2900
Phone(503) 731-2900
Organization SubpartNo
Authorized OfficialRonald KizziarPresident · (503) 731-2900
Enumeration DateDecember 5, 2005
Last NPPES UpdateOctober 19, 2026
NPPES CertifiedOctober 19, 2026
✔ NPI 1699759498 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
545 NE 47TH AVE, Portland, OR 97213
Open in Google Maps ↗

Other Identifiers 3

Medicaid7130669WA
Other840126000OR · Regence Bcbs
Medicaid227689OR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.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)

Radiology Specialists Of The Northwest, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

30

Medicare enrollment records show 30 clinicians reassign Medicare billing to Radiology Specialists Of The Northwest, PC, which bills Medicare for the services they deliver. Of these, 8 practice at this address and 24 within 10 miles. Listed here are the 20 practicing nearest to this location.

Nearest to this location (20)

See all 30
Deborah Arnold, MD
Diagnostic Radiology
NPI 1063429991
545 NE 47TH AVE STE 215
Portland, OR 97213
(503) 215-1889
✔ PECOS✔ Accepts MedicareSame address
Mark Gibson, MD
Diagnostic Radiology
NPI 1710122106
545 NE 47TH AVE STE 215
Portland, OR 97213
(503) 731-2900
✔ PECOS✔ Accepts MedicareSame address
James Hasenauer, M.D.
Diagnostic Radiology
NPI 1669422416
545 NE 47TH AVE STE 215
Portland, OR 97213
(503) 731-2900
✔ PECOS✔ Accepts MedicareSame address
Ronald Kizziar, MD
Diagnostic Radiology
NPI 1316924046
545 NE 47TH AVE SUITE 215
Portland, OR 97213
(503) 731-2904
✔ PECOS✔ Accepts MedicareSame address
Richard Koesel, MD
Diagnostic Radiology
NPI 1275572133
545 NE 47TH AVE SUITE 215
Portland, OR 97213
(503) 731-2900
✔ PECOS✔ Accepts MedicareSame address
Michael Neuman, MD
Diagnostic Radiology
NPI 1316924053
545 NE 47TH AVE SUITE 215
Portland, OR 97213
(503) 731-2900
✔ PECOS✔ Accepts MedicareSame address
James Tsai, MD
Diagnostic Radiology
NPI 1164409868
545 NE 47TH AVE SUITE 215
Portland, OR 97213
(503) 731-2900
✔ PECOS✔ Accepts MedicareSame address
Stacy Yamasaki, MD
Diagnostic Radiology
NPI 1821075565
545 NE 47TH AVE SUITE 215
Portland, OR 97213
(503) 731-2990
✔ PECOS✔ Accepts MedicareSame address
David Cheng, M.D.
Diagnostic Radiology
NPI 1811194525
5050 NE HOYT ST SUITE 625
Portland, OR 97213
(503) 731-2904
✔ PECOS✔ Accepts Medicare0.2 mi
Hasnain Hasham, M.D.
Diagnostic Radiology
NPI 1336568369
4805 NE GLISAN ST STE 11N
Portland, OR 97213
(503) 215-8650
✔ PECOS✔ Accepts Medicare0.2 mi
Jonathan Carnell, M.D.
Diagnostic Radiology
NPI 1316262108
5050 NE HOYT ST STE 625
Portland, OR 97213
(503) 731-2900
✔ PECOS✔ Accepts Medicare0.2 mi
Henry Chow, D.O.
Diagnostic Radiology
NPI 1912290768
5050 NE HOYT ST
Portland, OR 97213
(503) 731-2900
✔ PECOS✔ Accepts Medicare0.2 mi
Charles Croteau, D.O.
Diagnostic Radiology
NPI 1518183284
5050 NE HOYT ST STE 625
Portland, OR 97213
(503) 731-2900
✔ PECOS✔ Accepts Medicare0.2 mi
Hayley Oligane, D.O.
Diagnostic Radiology
NPI 1366873838
5050 NE HOYT ST STE 625
Portland, OR 97213
(503) 731-2904
✔ PECOS✔ Accepts Medicare0.2 mi
Jenny Wang, D.O.
Diagnostic Radiology
NPI 1962692483
5050 NE HOYT ST STE 625
Portland, OR 97213
(503) 731-2900
✔ PECOS✔ Accepts Medicare0.2 mi
Alexander Boscanin, MD
Diagnostic Radiology
NPI 1245618859
5050 NE HOYT ST STE 625
Portland, OR 97213
(503) 731-2900
✔ PECOS✔ Accepts Medicare0.2 mi
Mikhail Nekhline, MD
Diagnostic Radiology
NPI 1093943805
5050 NE HOYT ST SUITE 625
Portland, OR 97213
(503) 731-2904
✔ PECOS✔ Accepts Medicare0.2 mi
Sarah Rogers, MD
Diagnostic Radiology
NPI 1033377643
5050 NE HOYT ST SUITE 625
Portland, OR 97213
(503) 731-2900
✔ PECOS✔ Accepts Medicare0.2 mi
Spencer Lewis, MD
Diagnostic Radiology
NPI 1396232351
5050 NE HOYT ST STE 625
Portland, OR 97213
(650) 723-4000
✔ PECOS✔ Accepts Medicare0.2 mi
Dennis Barbon, MD
Diagnostic Radiology
NPI 1427510700
3181 SW SAM JACKSON PARK RD
Portland, OR 97239
(503) 418-0990
✔ PECOS✔ Accepts Medicare3.9 mi
See all 30 clinicians

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

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 Radiology Specialists Of The Northwest, PC's NPI number?

The NPI number for Radiology Specialists Of The Northwest, PC is 1699759498. It was assigned to this organization in the NPPES registry on December 5, 2005.

Where is Radiology Specialists Of The Northwest, PC located?

Radiology Specialists Of The Northwest, PC is located at 545 NE 47th Ave Suite 215, Portland, OR 97213. The listed phone number is (503) 731-2900.

What is Radiology Specialists Of The Northwest, PC's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Radiology Specialists Of The Northwest, PC enrolled in Medicare?

Yes. Radiology Specialists Of The Northwest, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Radiology Specialists Of The Northwest, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 30 clinicians, all in Diagnostic Radiology, reassign their Medicare billing to Radiology Specialists Of The Northwest, PC. 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. Of these, 8 practice at this address and 24 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Radiology Specialists Of The Northwest, PC accept?

Health plans from Providence Health Plan list Radiology Specialists Of The Northwest, PC 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 Radiology Specialists Of The Northwest, PC was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.