Medicare Enrolled

Dr. Yi Chiang, DO

Anesthesiology · Daly City, CA
Practice pattern: Cardiac Surgery — Surgically focused practice
Low-engagement
901 CAMPUS DRIVE, Daly City, CA 94015
6509912000
In practice since 2006 (19 years)
NPI: 1295830958 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. Chiang 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. Chiang? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Chiang

Dr. Yi Chiang is an anesthesiology specialist in Daly City, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Chiang performed 426 Medicare services across 392 unique beneficiaries.

Between the years covered by Open Payments, Dr. Chiang received a total of $126 from 6 pharmaceutical and/or device companies across 7 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in anesthesiology. 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. Chiang 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 9% volume in CA $126 industry payments

Medicare Practice Summary

Medicare Utilization ↗
426
Medicare services
Top 9% in CA for anesthesiology
392
Unique beneficiaries
$131
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~22 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
Anesthesia for cataract/lens surgery
Administration of anesthesia during eye lens surgery. This code covers the anesthetic service provided for the procedure.
 286 $124 $698
Anesthesia for other eye procedure
Administration of anesthesia for surgical procedures on the eye that are not otherwise specified.
 86 $158 $885
Anesthesia for eye procedure to remove iris
Administration of anesthesia during a surgical procedure to remove the iris of the eye.
 41 $106 $798
Anesthesia for eyelid procedure
Administration of anesthesia during a surgical procedure involving the eyelid.
 13 $193 $1,077
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.
67.1% high complexity
0.0% medium
32.9% routine

Industry Payment Transparency

Open Payments through 2023 ↗
$126
Total received (2018-2023)
Avg $42/year across 3 years
Bottom 40% in CA for anesthesiology
6
Companies
7
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
$126 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2023
$55
2022
$21
2018
$49

Payments by company (2023)

Consulting
Speaking
Meals & Travel
Research
Johnson & Johnson Surgical Vision, Inc.
$20
Sight Sciences, Inc.
$19
Glaukos Corporation
$16
Top 3 companies account for 100.0% of 2023 payments
All-time payments by company (2018-2023) ›
Sight Sciences, Inc.
$40
Abbott Laboratories
$22
Johnson & Johnson Surgical Vision, Inc.
$20
Glaukos Corporation
$16
Pernix Therapeutics Holdings, Inc.
$15
Purdue Pharma L.P.
$13
Top 3 companies account for 65.4% of all-time payments
Associated products mentioned in payments ›
Neuromodulation Dspsbls and Accs · OMNI SURGICAL SYSTEM · OMNI(R) SURGICAL SYSTEM (US) · SYMPROIC · Tecnis IOL · ZOHYDRO ER
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 an anesthesiology specialist in Daly City?
Compare anesthesiologists in the Daly City area by procedure volume, costs, and industry payment transparency.
Browse anesthesiologists nearby

Geographic Context

Anesthesiologists within 10 mi
958
Per 100K population
128.6
County median income
$156,000
Nearest hospital
AHMC SETON MEDICAL CENTER
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 2023
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. Chiang is a cardiac surgery specialist, with above-average Medicare volume (top 9% in CA), with low-engagement industry engagement, 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. Chiang experienced with anesthesia for cataract/lens surgery?
Based on Medicare claims data, Dr. Chiang performed 286 anesthesia for cataract/lens surgery 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. Chiang receive payments from pharmaceutical companies?
Yes. Dr. Chiang received a total of $126 from 6 companies across 7 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. Chiang's costs compare to other anesthesiologists in Daly City?
Dr. Chiang's average Medicare payment per service is $131. 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. Chiang) 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.

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 →