Medicare Enrolled

Dr. Tuan Doan, MD

Family Medicine · Williams, CA
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
Low-engagement
501 E ST, Williams, CA 95987
5306190393
In practice since 2006 (19 years)
NPI: 1831200526 verify on NPPES ↗
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Doan from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Doan

Dr. Tuan Doan is a family medicine specialist in Williams, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Doan performed 725 Medicare services across 337 unique beneficiaries.

Between the years covered by Open Payments, Dr. Doan received a total of $1,858 from 25 pharmaceutical and/or device companies across 82 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in family medicine. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Doan is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 19 years in practice ▲ Top 31% volume in CA $1,858 industry payments

Medicare Practice Summary

Medicare Utilization ↗
725
Medicare services
Top 31% in CA for family medicine
337
Unique beneficiaries
$77
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~38 Medicare services per year of practice

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

Procedure Volume Avg. paid Avg. submitted
Nursing facility visit, low complexity
A daily follow-up visit for an existing patient in a nursing facility involving straightforward medical decision making. The visit requires at least 15 minutes of time if time is used to determine the level of care.
282 $60 $101
Nursing facility visit, moderate complexity
A follow-up visit by a healthcare provider at a nursing facility for an established patient. The visit involves moderate medical decision making and takes at least 30 minutes.
225 $87 $130
Initial nursing facility care, high complexity
An initial visit by a healthcare provider to a patient in a nursing facility involving a high level of medical decision making, lasting at least 45 minutes.
58 $139 $246
Nursing facility visit, high complexity
A follow-up visit by a healthcare provider at a nursing facility for an established patient. The visit involves a high level of medical decision making and takes at least 45 minutes.
46 $124 $213
Nursing facility visit, established patient, straightforward
A follow-up visit by a healthcare provider at a nursing facility for an established patient. The visit involves straightforward medical decision making and lasts at least 10 minutes.
41 $27 $89
Skin and tissue removal, 20 sq cm or less
This procedure involves the surgical excision of skin and underlying tissue from an area measuring 20 square centimeters or smaller.
37 $43 $123
Nursing facility discharge management, 30 minutes or less
This service covers the management of a patient's discharge from a nursing facility. It applies when the total time spent on discharge activities is 30 minutes or less.
19 $67 $110
Initial nursing facility care, moderate complexity
Initial care provided to a patient in a nursing facility with moderate medical decision making, taking at least 35 minutes.
17 $102 $274
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.

Industry Payment Transparency

Open Payments through 2024 ↗
$1,858
Total received (2018-2024)
Avg $265/year across 7 years
Top 18% in CA for family medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
25
Companies
82
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →

Payment profile

Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.

Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$1,858 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$317
2023
$128
2022
$381
2021
$64
2020
$213
2019
$384
2018
$371

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Neurocrine Biosciences, Inc.
$169
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$42
ABBVIE INC.
$34
Exact Sciences Corporation
$24
AstraZeneca Pharmaceuticals LP
$19
Lilly USA, LLC
$15
Cranial Technologies, Inc
$14
Top 3 companies account for 77.3% of 2024 payments
All-time payments by company (2018-2024) ›
Neurocrine Biosciences, Inc.
$606
Merz North America, Inc.
$229
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$174
GlaxoSmithKline, LLC.
$174
AstraZeneca Pharmaceuticals LP
$96
Kaleo, Inc.
$59
Daiichi Sankyo Inc.
$52
Indivior Inc.
$49
Takeda Pharmaceuticals U.S.A., Inc.
$47
Boehringer Ingelheim Pharmaceuticals, Inc.
$38
Amarin Pharma Inc.
$35
ABBVIE INC.
$34
Lilly USA, LLC
$33
Allergan Inc.
$33
Novartis Pharmaceuticals Corporation
$26
Exact Sciences Corporation
$24
PFIZER INC.
$20
Janssen Pharmaceuticals, Inc
$20
Novo Nordisk Inc
$19
Medtronic Vascular, Inc.
$17
Abbott Laboratories
$17
MERZ NORTH AMERICA, INC.
$15
Genentech USA, Inc.
$14
Bayer Healthcare Pharmaceuticals Inc.
$14
Cranial Technologies, Inc
$14
Top 3 companies account for 54.3% of all-time payments
Associated products mentioned in payments ›
ANORO · ANORO ELLIPTA · BEVESPI AEROSPHERE · BREO ELLIPTA · BYSTOLIC · Cologuard Collection Kit · Doc Band · EVZIO · Evzio · FARXIGA · FreeStyle Libre 2 · INGREZZA · INJECTAFER · JARDIANCE · Kerendia · LUCEMYRA · Ongentys · Ozempic · PAXLOVID · RELISTOR · RELISTOR ORAL · SPIRIVA RESPIMAT · SPRAVATO · SUBLOCADE · SYMBICORT · TRELEGY ELLIPTA · TRULICITY · Trintellix · UBRELVY · VRAYLAR · Vascepa · VenaSeal · XIFAXAN · Xofluza
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →

Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Looking for a family medicine specialist in Williams?
Compare family medicine physicians in the Williams area by procedure volume, costs, and industry payment transparency.
Browse family medicine physicians nearby

Geographic Context

Family medicine physicians within 10 mi
18
Per 100K population
82.2
County median income
$75,149
Nearest hospital
COLUSA MEDICAL CENTER
15.9 mi

Data Sources

Provider Registry NPPES Weekly updates
Medicare Enrollment PECOS Monthly updates
Practice Data Medicare Util. Annual (CY lag)
Industry Payments Open Payments CY 2024
Disciplinary History — Not public N/A

This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →

Summary

Dr. Doan is a mixed practice specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 18% of CA peers, with 19 years of NPI registration.

This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →

Frequently Asked Questions

Is Dr. Doan experienced with nursing facility visit, low complexity?
Based on Medicare claims data, Dr. Doan performed 282 nursing facility visit, low complexity services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Doan receive payments from pharmaceutical companies?
Yes. Dr. Doan received a total of $1,858 from 25 companies across 82 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Doan's costs compare to other family medicine physicians in Williams?
Dr. Doan's average Medicare payment per service is $77. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Doan) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
About this page

All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →