Medicare Enrolled
Dr. Kuang-Hwa Chao, M.D.
Radiology - Diagnostic · Walnut Creek, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Low-engagement
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. Chao 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 →
Are you Dr. Chao?
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What this data tells you about Dr. Chao
Dr. Kuang-Hwa Chao is a radiology - diagnostic specialist in Walnut Creek, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Chao performed 5,012 Medicare services across 1,228 unique beneficiaries.
Between the years covered by Open Payments, Dr. Chao received a total of $6,755 from 69 pharmaceutical and/or device companies across 224 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in radiology - diagnostic. 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. Chao 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.
✓ 18 years in practice
▲ Top 10% volume in CA
$6,755 industry payments
Medicare Practice Summary
Medicare Utilization ↗5,012
Medicare services
Top 10% in CA for radiology - diagnostic
1,228
Unique beneficiaries
$359
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~278 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 |
|---|---|---|---|
| Calculation of radiation therapy dose | 913 | $66 | $253 |
| CT guidance for radiation therapy This procedure uses computed tomography imaging to guide the precise placement of radiation therapy fields. It ensures accurate positioning for targeted treatment delivery. |
783 | $124 | $475 |
| Intensity-modulated radiation therapy delivery Delivery of radiation therapy using narrow beams that are spatially and temporally modulated to target specific areas. This process is performed per treatment session. |
759 | $392 | $1,530 |
| Intra-fraction radiation therapy motion tracking Real-time monitoring and tracking of patient or target movement during each radiation therapy session to ensure precise delivery. |
539 | $114 | $270 |
| Gallium Ga-68 gozetotide diagnostic injection A diagnostic injection of the radiopharmaceutical Gallium Ga-68 gozetotide (brand name Illuccix) used for imaging purposes. |
302 | $839 | $3,215 |
| Continuing radiation therapy consultation per week A weekly consultation to review and manage ongoing radiation therapy treatment. |
211 | $92 | $318 |
| Radiation treatment management, 5 sessions Oversight and management of a radiation therapy course consisting of five treatment sessions. |
182 | $175 | $655 |
| Design and construction of radiation treatment device This code covers the design and construction of a device used for high precision radiation therapy. It does not include the actual administration of radiation treatment. |
121 | $466 | $1,889 |
| Radiation therapy, 3+ areas, 6-10 MeV Radiation treatment delivered to three or more separate areas using advanced techniques like custom blocking and rotational beams with an energy level of 6-10 MeV. |
117 | $256 | $953 |
| High precision radiation therapy planning This procedure involves the detailed planning and setup required for delivering high-precision radiation therapy to a target area of the body. |
112 | $1,928 | $7,614 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
112 | $111 | $460 |
| Nuclear medicine scan from skull base to mid-thigh with CT A nuclear medicine imaging study covering the area from the base of the skull to the middle of the thighs, performed alongside a CT scan. |
107 | $1,604 | $4,538 |
| Stereotactic radiosurgery, 2nd through 5th session Image-guided robotic radiation therapy delivery for the second through fifth sessions of a fractionated treatment course. This code covers up to five sessions per course of treatment. |
105 | $2,259 | $7,123 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
89 | $74 | $325 |
| Complex radiation therapy planning | 65 | $153 | $571 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
65 | $6 | $24 |
| New patient office visit, complex (60-74 min) | 63 | $187 | $770 |
| Design and construction of complex radiation treatment device This code covers the design and construction of a complex radiation treatment device. It does not specify the clinical purpose or conditions treated. |
62 | $123 | $485 |
| Special radiation treatment | 52 | $130 | $492 |
| Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries | 52 | $281 | $750 |
| Special medical radiation therapy consultation A consultation with a radiation oncologist to discuss treatment options and plan for medical radiation therapy. |
48 | $148 | $495 |
| Robotic stereotactic radiosurgery, first session A precise radiation treatment delivered using a robotic linear accelerator guided by imaging. This code covers the first session of a fractionated course or a complete single-session treatment. |
32 | $3,072 | $9,693 |
| Fractionated radiation therapy for cranial lesion Treatment using radiation delivered in multiple sessions to manage a lesion in the head. |
27 | $582 | $2,200 |
| Injection of biodegradable material next to prostate A procedure involving the injection of a biodegradable substance into the tissue surrounding the prostate gland. |
18 | $3,144 | $14,974 |
| 3D radiation therapy planning This procedure involves creating a three-dimensional treatment plan for radiation therapy. It uses imaging data to map the target area and surrounding tissues to guide precise radiation delivery. |
18 | $482 | $1,885 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
17 | $150 | $635 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
16 | $67 | $257 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
13 | $155 | $585 |
| Radiation treatment planning, complex This procedure involves obtaining the necessary data to develop an optimal radiation treatment plan for three or more treatment areas, or any number of areas requiring special treatment. |
12 | $476 | $2,090 |
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.
3.1% high complexity
90.0% medium
6.9% routine
Industry Payment Transparency
Open Payments through 2024 ↗$6,755
Total received (2018-2024)
Avg $965/year across 7 years
Top 14% in CA for radiology - diagnostic
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
69
Companies
224
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
$6,739 (99.8%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$15 (0.2%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,661
2023
$787
2022
$1,620
2021
$150
2020
$513
2019
$754
2018
$1,270
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
AstraZeneca Pharmaceuticals LP
$289
Merck Sharp & Dohme LLC
$267
Janssen Biotech, Inc.
$144
Takeda Pharmaceuticals U.S.A., Inc.
$90
Coherus Biosciences Inc.
$88
Eisai Inc.
$69
Myriad Genetic Laboratories, Inc.
$68
PFIZER INC.
$64
Telix Pharmaceuticals
$49
RECORDATI_RARE_DISEASES_INC.
$42
ABBVIE INC.
$42
Agios Pharmaceuticals, Inc.
$38
Genentech USA, Inc.
$36
Genentech, Inc.
$33
Genmab U.S., Inc.
$33
PUMA BIOTECHNOLOGY, INC.
$29
Bayer Healthcare Pharmaceuticals Inc.
$28
Mirati Therapeutics, Inc.
$26
Novocure Inc.
$26
Lilly USA, LLC
$26
ADC Therapeutics America, Inc.
$26
Celgene Corporation
$24
Astellas Pharma US Inc
$22
Azurity Pharmaceuticals, Inc.
$22
SOBI, INC
$21
Incyte Corporation
$20
Cardinal Health 414 LLC
$20
Sumitomo Pharma America, Inc.
$20
Top 3 companies account for 42.1% of 2024 payments
All-time payments by company (2018-2024) ›
VIEWRAY TECHNOLOGIES INC
$1,692
AstraZeneca Pharmaceuticals LP
$413
Takeda Pharmaceuticals U.S.A., Inc.
$408
Merck Sharp & Dohme LLC
$295
Janssen Biotech, Inc.
$294
RefleXion Medical, Inc.
$213
Augmenix, Inc.
$210
Merck Sharp & Dohme Corporation
$191
Amgen Inc.
$176
Telix Pharmaceuticals
$165
Novartis Pharmaceuticals Corporation
$163
TESARO, Inc.
$138
Dendreon Pharmaceuticals LLC
$130
Myriad Genetic Laboratories, Inc.
$114
Boston Scientific Corporation
$113
Lilly USA, LLC
$103
Sumitomo Pharma America, Inc.
$98
Coherus Biosciences Inc.
$88
Genentech USA, Inc.
$83
Eisai Inc.
$81
PFIZER INC.
$79
Boehringer Ingelheim Pharmaceuticals, Inc.
$77
Novocure Inc.
$70
Celgene Corporation
$62
Agios Pharmaceuticals, Inc.
$61
GENZYME CORPORATION
$55
ACELL, INC.
$54
Aurobindo Pharma USA, Inc.
$52
Puma Biotechnology, Inc.
$49
Astellas Pharma US Inc
$47
Incyte Corporation
$44
RECORDATI_RARE_DISEASES_INC.
$42
ABBVIE INC.
$42
Blue Earth Diagnostics Limited
$39
PALETTE LIFE SCIENCES, INC.
$39
Pharmacyclics LLC, An AbbVie Company
$38
Seattle Genetics, Inc.
$34
Genentech, Inc.
$33
Genmab U.S., Inc.
$33
Regeneron Healthcare Solutions, Inc.
$31
PUMA BIOTECHNOLOGY, INC.
$29
E.R. Squibb & Sons, L.L.C.
$29
Foundation Medicine, Inc.
$28
Bayer Healthcare Pharmaceuticals Inc.
$28
Teva Pharmaceuticals USA, Inc.
$28
Mirati Therapeutics, Inc.
$26
ADC Therapeutics America, Inc.
$26
GlaxoSmithKline, LLC.
$25
Helsinn Therapeutics (U.S.), Inc.
$25
Seagen Inc.
$23
Palette Life Sciences, Inc.
$22
Daiichi Sankyo Inc.
$22
Azurity Pharmaceuticals, Inc.
$22
SOBI, INC
$21
EUSA Pharma (US) LLC
$21
IsoRay, Inc
$20
Cardinal Health 414 LLC
$20
Lexicon Pharmaceuticals, Inc.
$20
Acceleron Pharma, Inc.
$19
Gilead Sciences, Inc.
$17
BeiGene USA, Inc.
$17
INSYS Therapeutics Inc
$17
Ipsen Biopharmaceuticals, Inc
$17
ACCORD HEALTHCARE, INC.
$16
Elekta, Inc.
$16
AMAG Pharmaceuticals, Inc.
$15
Clovis Oncology, Inc.
$12
Secura Bio, Inc.
$11
Paratek Pharmaceuticals, Inc.
$11
Top 3 companies account for 37.2% of all-time payments
Associated products mentioned in payments ›
ADCETRIS · AKYNZEO · ALUNBRIG · Abraxane · Axumin · BENDEKA · BLENREP · BRACHYTHERAPY SOURCE · BRUKINSA · Beleodaq · CALQUENCE · CAMCEVI · CEREZYME · CYRAMZA · Columvi · DARZALEX · ELEKTA MEDICAL LINEAR ACCELERATOR · ELITEK · ENHERTU · EPKINLY · ERBITUX · ERLEADA · Epkinly · Erleada · FERAHEME · Farydak · Folotyn · GAZYVA · GENERAL ONCOLOGY · GILOTRIF · IBRANCE · ILLUCCIX · IMBRUVICA · IMFINZI · INJECTAFER · Imbruvica · Itovebi · JADENU · JAKAFI · KEYTRUDA · KIT FOR THE PREPARATION OF LYMPHOSEEK (TECHNETIUM TC 99M TILMANOCEPT) · KRAZATI · Kyprolis · LIBTAYO · LOQTORZI · LYNPARZA · Lenvima · Leqembi · MEKINIST · MRIdian · MRIdian LINAC · MVASI · NERLYNX · NINLARO · NUZYRA · Nerlynx · Neulasta · Nubeqa · OPDIVO · ORGOVYX · OXBRYTA · Ocrevus · Optune · PADCEV · PLUVICTO · POSLUMA · PRECISETUMOR · PROLARIS · PROMACTA · PROVENGE · Padcev · Pomalyst · Prolia · REFLEXION MEDICAL RADIOTHERAPY SYSTEM · RETEVMO · Reblozyl · Rubraca · SOMATULINE DEPOT · SYLVANT · SYNAGIS · SYNDROS · SpaceOAR · SpaceOAR VUE System - 10mL · Sylvant · TAGRISSO · TASIGNA · TIBSOVO · TUKYSA · Udenyca · VERZENIO · VIVIMUSTA · XGEVA · XTANDI · Xermelo · ZEJULA · ZERBAXA · ZYTIGA
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.
Geographic Context
Radiology - diagnostics within 10 mi
51
Per 100K population
4.4
County median income
$125,727
Nearest hospital
JOHN MUIR MEDICAL CENTER - WALNUT CREEK CAMPUS
0.0 mi
0.0 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. Chao is a mixed practice specialist, with above-average Medicare volume (top 10% in CA), with low-engagement industry engagement in the top 14% of CA peers, with 18 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. Chao experienced with calculation of radiation therapy dose?
Based on Medicare claims data, Dr. Chao performed 913 calculation of radiation therapy dose 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. Chao receive payments from pharmaceutical companies?
Yes. Dr. Chao received a total of $6,755 from 69 companies across 224 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. Chao's costs compare to other radiology - diagnostics in Walnut Creek?
Dr. Chao's average Medicare payment per service is $359. 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. Chao) 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 →
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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.
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