1. Home
  2. Directory
  3. Washington
  4. Seattle
  5. Radiology
  6. NPI Profile

MARK L BACKUS M.D.
NPI 1952465965
Radiology - Diagnostic Radiology in Seattle, WA

Active since December 21, 2006
201 16TH AVE E, SEATTLE, WA 98112(206) 326-3000 Get Directions Write a Review

NPPES record last updated: April 1, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 1, 2021, Oct 26, 2020 (2 updates tracked since 2020).

About Mark L Backus M.d. NPPES

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

MARK L BACKUS M.D. (NPI 1952465965) is an individual diagnostic radiology provider in Seattle, Washington, licensed in Washington (MD00028159) and active in the NPI registry since December 2006.

NPPES Registry Identity

NPI1952465965
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameMARK L BACKUSCredential: M.D.
Location Address201 16TH AVE ESeattle, WA 98112-5226
Mailing Address201 16th Ave ESeattle, WA 98112-5226 · (206) 326-3000
Phone(206) 326-3000
Sole ProprietorNo
Enumeration DateDecember 21, 2006
Last NPPES UpdateApril 1, 20212 updates tracked since enumeration
NPPES CertifiedApril 1, 2021
✔ NPI 1952465965 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in WA · MD00028159
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
201 16TH AVE E, Seattle, WA 98112
Open in Google Maps ↗

Other Identifiers 1

Medicaid8134835WA

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.

DR. MICHAEL DONG CHO M.D.
Internal Medicine (Rheumatology)
201 16TH AVE E
SEATTLE, WA 98112
King County (206) 326-3000
MRS. MELAINE MENDOZA ROMAN OTRP, OTR/L
Occupational Therapist
201 16TH AVE E
SEATTLE, WA 98112
King County (206) 326-4545
NHI LUAN TAN
Student in an Organized Health Care Education/Training Program
201 16TH AVE E
SEATTLE, WA 98112
King County (206) 326-3000
GROUP HEALTH COOPERATIVE
Clinic/Center (Ambulatory Surgical)
201 16TH AVE E, SUITE CMB-2
SEATTLE, WA 98112
King County (206) 326-2107
JOYCE KRISTINE AQUINO
Registered Nurse (Home Health)
201 16TH AVE E
SEATTLE, WA 98112
King County (206) 326-4545
KIMBERLY DAWN GRASSMAN
Home Health Aide
201 16TH AVE E
SEATTLE, WA 98112
King County (206) 635-1668
GARRETT KOBAYASHI PHARMD
Pharmacist
201 16TH AVE E
SEATTLE, WA 98112
King County (206) 326-2880
TAYLAR GALLUP OTR/L
Occupational Therapist
201 16TH AVE E
SEATTLE, WA 98112
King County (877) 751-2446

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 Mark Backus's NPI number?

The NPI number for Mark Backus is 1952465965. It was assigned to this individual provider in the NPPES registry on December 21, 2006.

Where is Mark Backus located?

Mark Backus practices at 201 16th Ave E, Seattle, WA 98112. The listed phone number is (206) 326-3000.

What is Mark Backus's specialty?

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

When was this NPI record last updated?

The NPPES record for Mark Backus was last updated on April 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.