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DR. DUNCAN A RIDDELL M.D.
NPI 1801993829
Otolaryngology in Edmonds, WA

Active since September 20, 2006PECOS Enrolled
21616 76TH AVE W, SUITE 112, EDMONDS, WA 98026(425) 775-6651(425) 670-6718 Get Directions Write a Review

NPPES record last updated: October 24, 2011. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Duncan A Riddell M.d. NPPES

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

DR. DUNCAN A RIDDELL M.D. (NPI 1801993829) is an individual otolaryngology provider in Edmonds, Washington, licensed in Washington (MD00029782) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1801993829
Entity TypeIndividualMale
Primary Taxonomy207Y00000X
Provider Legal NameDR. DUNCAN A RIDDELLCredential: M.D.
Location Address21616 76TH AVE W, SUITE 112Edmonds, WA 98026-7512
Mailing Address805 Madison St, Suite 901Seattle, WA 98104-1172 · (206) 264-8100 · Fax (206) 264-8689
Phone(425) 775-6651
Fax(425) 670-6718
Sole ProprietorNo
Enumeration DateSeptember 20, 2006
Last NPPES UpdateOctober 24, 2011
✔ NPI 1801993829 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in WA · MD00029782
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
21616 76TH AVE W, Edmonds, WA 98026
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Other Identifiers 3

Medicaid1094796WA
Medicare UPINF42590
Medicare PINAB03542WA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Duncan A Riddell 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98026 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
$130.99 typical visit price
range $57.27 – $172.80
Typical copayment $32.74 (range $14.31 – $43.20)
Most-billed visit code 99204
Established Patient
$71.29 typical visit price
range $18.56 – $141.11
Typical copayment $17.82 (range $4.64 – $35.27)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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. LORI OLSON CALDWELL AU.D.
Audiologist-Hearing Aid Fitter
21616 76TH AVE W, SUITE 112
EDMONDS, WA 98026
Snohomish County (425) 775-6651
DR. HENRY S CHANG MD
Otolaryngology
21616 76TH AVE W, SUITE 112
EDMONDS, WA 98026
Snohomish County (425) 775-6651
DR. ARPENIK AVAKIAN M.D., PH.D.
Ophthalmology
21616 76TH AVE W, STE 104
EDMONDS, WA 98026
Snohomish County (425) 275-9975
DR. SHAWN E ROGERS M.D.
Otolaryngology
21616 76TH AVE W, SUITE 112
EDMONDS, WA 98026
Snohomish County (425) 775-6651
KIMBERLY J. DICKEY DO
Obstetrics & Gynecology
21616 76TH AVE W, #205
EDMONDS, WA 98026
Snohomish County (425) 640-4810
ROSE ANN RHODES SOCIAL WORKER
Social Worker (Clinical)
21616 76TH AVE W, SUITE 102
EDMONDS, WA 98026
Snohomish County (425) 774-1538
DR. JOHN T PARKER MD
Otolaryngology
21616 76TH AVE W, SUITE 112
EDMONDS, WA 98026
Snohomish County (425) 775-6651
MARY K NEERING MD
Obstetrics & Gynecology
21616 76TH AVE W, #205
EDMONDS, WA 98026
Snohomish County (425) 640-4810

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 Duncan Riddell's NPI number?

The NPI number for Duncan Riddell is 1801993829. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Where is Duncan Riddell located?

Duncan Riddell practices at 21616 76th Ave W Suite 112, Edmonds, WA 98026. The listed phone number is (425) 775-6651.

What is Duncan Riddell's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is Duncan Riddell enrolled in Medicare?

Yes. Duncan Riddell is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Duncan Riddell was last updated on October 24, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.