Dr. Duncan A. Riddell, MD
- Medicare services, 2019
- 1,164
- Part D claims, 2020
- 57
- Industry payments
- $314
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 21616 76th Ave W, Edmonds, WA 98026
- Practice phone
- Call (425) 775-6651
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Proliance Surgeons Orthopedic Specialists Of Seattle - ENT & Audiology - Edmonds (21616 76th Ave W)
Surgical practice · Edmonds, Washington
Find Dr. Riddell's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Duncan A. Riddell is an otolaryngologist in Edmonds, Washington
Dr. Riddell practices at Proliance Surgeons Orthopedic Specialists Of Seattle - ENT & Audiology - Edmonds (21616 76th Ave W) in Edmonds, Washington.
Dr. Riddell's NPI, 1801993829, was assigned on September 20, 2006. Dr. Riddell holds Washington license MD00029782.
- NPI
- 1801993829NPI Registry (opens in a new tab)
- NPI enumeration date
- September 20, 2006
- NPI status
- Active
- Practice phone
- (425) 775-6651
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Duncan A. Riddell practices at Proliance Surgeons Orthopedic Specialists of Seattle - ENT & Audiology - Edmonds (21616 76th Ave W) in Edmonds, Washington
Dr. Riddell's primary practice is Proliance Surgeons Orthopedic Specialists of Seattle - ENT & Audiology - Edmonds (21616 76th Ave W), at 21616 76th Ave W, Edmonds, WA 98026. The practice phone is (425) 775-6651.
- Proliance Surgeons Orthopedic Specialists of Seattle - ENT & Audiology - Edmonds (21616 76th Ave W)21616 76th Ave W, Edmonds, WA 98026Phone(425) 775-6651
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Duncan A. Riddell is affiliated with 1 site of care and 1 medical group
Dr. Riddell's primary practice is Proliance Surgeons Orthopedic Specialists Of Seattle - ENT & Audiology - Edmonds (21616 76th Ave W) in Edmonds, Washington. The medical group on file is Seattle Orthopedic Center.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Duncan A. Riddell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Riddell practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Proliance Surgeons Orthopedic Specialists Of Seattle - ENT & Audiology - Edmonds (21616 76th Ave W) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Duncan A. Riddell is one of 254 otolaryngologists in Washington
Otolaryngology is Dr. Riddell's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Riddell is licensed in Washington.
Specialties and state licenses
- Otolaryngology, WashingtonPrimary
Otolaryngologists near Dr. Riddell
Counts of otolaryngologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Duncan A. Riddell billed Medicare for 1,164 services in 2019
CMS data shows 1,164 Medicare services from Dr. Riddell across 7 procedure codes in 2019. Medicare paid $70,838 for them. Every service was in an office.
Dr. Riddell's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 6612019: 659No change
- Surgery
- 2018: 4062019: 47517%
- Imaging
- 2018: 232019: 3030%
Dr. Riddell compared with the Washington median for otolaryngologists, 2019
- Dr. Riddell
- Washington median
- Medicare services
- 1,164vs 4032.9 times
- Part D claims
- 57vs 16064% below
Medians across 241 otolaryngologists in Washington with Dmand AI profiles that report each measure.
Dr. Riddell's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Riddell and other otolaryngologists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Duncan A. Riddell's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Riddell's median patient age at 66, with 54% women.
Dr. Riddell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women54%
- Men44%
Source: Dmand AI Patient Panel Data
Dr. Duncan A. Riddell wrote 57 Medicare Part D claims in 2020
In 2020, Dr. Riddell wrote 57 Medicare Part D claims. Every claim was for a generic drug. They cover 3 drugs, with $2,025 in total drug cost. In 2019, CMS named 272 claims across 10 drugs.
Dr. Riddell's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 2722020: 5779%
Drugs named by CMS: 3 in 2020, 10 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Duncan A. Riddell received $314 in industry payments from 2016 to 2019
CMS Open Payments shows 10 general payments to Dr. Riddell from 7 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Inspire Medical Systems, Inc. paid the most, $154.
General payments to Dr. Riddell by program year, 2016 to 2019
Companies that paid Dr. Riddell the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Duncan A. Riddell's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Duncan A. Riddell
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Duncan A. Riddell's NPI number?
Dr. Duncan A. Riddell's NPI number is 1801993829. It was assigned on September 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Duncan A. Riddell?
Dr. Duncan A. Riddell is an otolaryngologist in Edmonds, Washington. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Duncan A. Riddell practice?
Dr. Riddell practices at 21616 76th Ave W, Edmonds, WA 98026. Dr. Riddell's primary practice is Proliance Surgeons Orthopedic Specialists Of Seattle - ENT & Audiology - Edmonds (21616 76th Ave W) in Edmonds, Washington.
What is Dr. Duncan A. Riddell's office phone number?
The practice phone on file for Dr. Riddell is (425) 775-6651.
What is Dr. Duncan A. Riddell's medical license number?
Dr. Riddell holds Washington license MD00029782.
What medical group is Dr. Duncan A. Riddell part of?
Dr. Riddell is linked to Seattle Orthopedic Center.
Does Dr. Duncan A. Riddell accept Medicare?
Yes. CMS data shows Dr. Riddell billed Medicare for 1,164 services in 2019.
What services does Dr. Duncan A. Riddell bill to Medicare?
In 2019, Dr. Riddell's most billed Medicare services were office visit, established patient (99213), surgery: ear (69210) and office visit, new patient (99203).
What drugs does Dr. Duncan A. Riddell prescribe most?
In 2020 Medicare Part D data, Dr. Riddell's most prescribed drugs by claims were Fluticasone Propionate, Ipratropium Bromide and Omeprazole.
Has Dr. Duncan A. Riddell received payments from drug or device companies?
CMS Open Payments shows $314 in general payments to Dr. Riddell from 7 companies from 2016 to 2019. The largest total came from Inspire Medical Systems, Inc.
How long has Dr. Duncan A. Riddell been practicing?
Dr. Riddell's NPI was assigned in 2006.
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