William Toan Nguyen, M.D.
William Toan Nguyen is an Allergy & Immunology specialist based in Redmond, WA with over 29 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
William Toan Nguyen, M.D. has been part of the Redmond medical community since 2006 in group practice. A University of Texas Medical School at Houston graduate since 1997, he brings 29+ years of experience. CMS Medicare data shows his patients commonly have high cholesterol, hypertension, and asthma.
Older · 789dNPPES updated 2024-03-26 · verify NPI on CMS · Verify license at Washington Medical Commission
How Does This Doctor Compare?
Generic Rx
↑ Higher = better46.3%
Washington avg: 85.1 · US avg: 82.8
⚠ Lower than most doctors nationally(-36.5 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
208
Unique beneficiaries
Standard volumePrescription Recipients
106
Patients prescribed
Prescriptions Written
473
Total claims
Total Medicare drug cost: $277k
Percentile rankings compared against 1,521 reporting peers in Washington.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Asthma.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-6%) — less common here
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-14%) — less common here
A condition causing airway inflammation, wheezing, and difficulty breathing
US avg: 13.3%↑ More patients than average (+37%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-2%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-13%) — less common here
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-11%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$13.5k received from industry
89 transactions reported in 2024 ·High tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to William Toan Nguyen's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1997
Mcgovern Medical School at Uthealth Houston
Board certified · Mar 25, 2024
Self-reported via NPPES
29 years in practice
Experienced
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
Taxonomy: 207K00000X
Education & Training
University of Texas Medical School at Houston (Class of 1997)
Mailing address
9725 3rd Ave Ne Ste 500, Seattle, WA 98115-2024
Differs from practice location
Virtual Allergy & Immunology Care With William Toan Nguyen
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with William Toan Nguyen for cholesterol management, blood pressure monitoring, asthma reviews — no travel to Redmond required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about William Toan Nguyen
Dr. Nguyen is listed as active in the NPI registry with telehealth listed in Redmond, WA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (206) 527-1200.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact William Toan Nguyen
Practice Location
8301 161st Ave Ne Ste 308, Redmond, WA 98052-3858
Mailing Address
9725 3rd Ave Ne Ste 500, Seattle, WA 98115-2024
This is a provider directory. Contact the office directly to schedule appointments.
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