Dr. William Chow, MD
What this data tells you about Dr. Chow
Dr. William Chow is a neurology specialist in Los Angeles, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Chow performed 6,357 Medicare services across 2,382 unique beneficiaries.
Between the years covered by Open Payments, Dr. Chow received a total of $12,561 from 48 pharmaceutical and/or device companies across 520 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in neurology. 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. Chow 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.
Medicare Practice Summary
Medicare Utilization ↗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 |
|---|---|---|---|
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
2,746 | $100 | $611 |
| 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. |
2,055 | $149 | $532 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
564 | $77 | $302 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
381 | $145 | $744 |
| New patient office visit, complex (60-74 min) | 339 | $182 | $764 |
| EEG, extended monitoring A test that records electrical activity in the brain while the patient is both awake and asleep. |
100 | $411 | $1,830 |
| Electromyography of arm or leg muscles A test that measures the electrical activity in the muscles of the arm or leg using a needle electrode. It helps evaluate the health of muscles and the nerve cells that control them. |
51 | $87 | $300 |
| Video EEG monitoring, 12-26 hours A 12 to 26-hour test that records brain wave activity while simultaneously capturing video of the patient's behavior. |
50 | $760 | $3,000 |
| Nerve conduction studies, 7-8 tests A series of 7 to 8 nerve conduction tests to evaluate how well nerves are sending signals to muscles. |
19 | $156 | $600 |
| Video EEG monitoring, 2-12 hours This procedure records brain wave activity using an electroencephalogram (EEG) while simultaneously capturing video footage for a duration of 2 to 12 hours with intermittent monitoring. |
18 | $407 | $1,500 |
| Continuous EEG brain wave monitoring A test that records electrical activity in the brain over an extended period. It is used to monitor brain function continuously. |
17 | $241 | $750 |
| Video EEG monitoring, 61-84 hours This procedure involves monitoring brain wave activity using an electroencephalogram (EEG) while simultaneously recording video for a duration of 61 to 84 hours. A healthcare professional reviews the data and provides a report. |
17 | $269 | $1,085 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Most payments (86%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
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. Chow is a clinical cardiology specialist, with above-average Medicare volume (top 13% 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
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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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