Medicare Enrolled

Dr. William Maloney

Orthopedic Surgery · Stanford, CA
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
Mixed engagement
300 PASTEUR DR, Stanford, CA 94305
6507234000
In practice since 2007 (19 years)
NPI: 1255487500 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. Maloney 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. Maloney

Dr. William Maloney is an orthopedic surgery specialist in Stanford, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Maloney performed 304 Medicare services across 282 unique beneficiaries.

Between the years covered by Open Payments, Dr. Maloney received a total of $10,700,996 from 11 pharmaceutical and/or device companies across 408 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in orthopedic surgery. The majority of payments are classified as financial or ownership interests (royalties, licensing fees, or investment interests). Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Maloney 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 ▲ 304 Medicare services $10,700,996 industry payments

Medicare Practice Summary

Medicare Utilization ↗
304
Medicare services
Bottom 25% in CA for orthopedic surgery
Lower Medicare volume may reflect subspecialty focus, hospital-based work, or a higher share of non-Medicare patients.
282
Unique beneficiaries
$225
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~16 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
Office visit, established patient (10-19 min)
An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition.
 94 $26 $115
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.
 83 $51 $115
Total knee replacement 33 $1,177 $10,079
Musculoskeletal surgical navigation with imaging guidance
A surgical procedure that uses imaging technology to guide orthopedic operations on the musculoskeletal system.
 31 $189 $683
New patient office visit (30-44 min)
An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range.
 23 $50 $110
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.
 16 $114 $182
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.
 13 $68 $164
Total hip replacement
Surgical procedure to replace the thigh bone and hip joint with artificial components.
 11 $1,196 $10,970
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.
14.5% high complexity
10.2% medium
75.3% routine

Industry Payment Transparency

Open Payments through 2024 ↗
$10,700,996
Total received (2018-2024)
Avg $1,528,714/year across 7 years
Top 0% in CA for orthopedic surgery
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
11
Companies
408
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.

Financial / Ownership
Ownership or investment interests, royalties, and licensing fees
$10,603,325 (99.1%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$96,320 (0.9%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$1,351 (0.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$1,500,627
2023
$1,791,900
2022
$1,905,461
2021
$1,697,672
2020
$1,295,705
2019
$1,326,699
2018
$1,182,933

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Stryker Corporation
$1,500,482
DJO, LLC
$145
Top 3 companies account for 100.0% of 2024 payments
All-time payments by company (2018-2024) ›
Stryker Corporation
$8,441,515
Zimmer Biomet Holdings, Inc.
$2,161,811
Pacira Therapeutics, Inc.
$48,966
Flexion Therapeutics, Inc.
$45,106
Heron Therapeutics, Inc.
$2,393
Medical Device Business Services, Inc.
$586
DJO, LLC
$274
Onkos Surgical, Inc.
$125
Smith+Nephew, Inc.
$121
DePuy Synthes Sales Inc.
$72
MicroPort Orthopedics Inc
$29
Top 3 companies account for 99.5% of all-time payments
Associated products mentioned in payments ›
A.L.P.S. · ACCOLADE · ATTUNE · AUGMENT INJECTABLE · AXSOS · Biocue · DONJOY · ELEOS LIMB SALVAGE SYSTEM · FIXOS · GMRS · MAKO · MPO Hip System · NEW PRODUCT DEVELOPMENT · NONE · Persona · RESTORATION · TFN ADVANCED · TRIATHLON · TRIDENT · X3 ADVANCED BEARING TECHNOLOGY · Zilretta · Zynrelef
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 →

Payments are distributed across multiple categories with no single dominant type. Total industry engagement is in the top 0% for orthopedic surgery in CA.

Looking for an orthopedic surgery specialist in Stanford?
Compare orthopedic surgeons in the Stanford area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Orthopedic surgeons within 10 mi
240
Per 100K population
12.6
County median income
$159,674
Nearest hospital
STANFORD HEALTH CARE
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. Maloney is a clinical cardiology specialist, with moderate Medicare volume, with mixed engagement industry engagement in the top 0% 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. Maloney experienced with office visit, established patient (10-19 min)?
Based on Medicare claims data, Dr. Maloney performed 94 office visit, established patient (10-19 min) 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. Maloney receive payments from pharmaceutical companies?
Yes. Dr. Maloney received a total of $10,700,996 from 11 companies across 408 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. Maloney's costs compare to other orthopedic surgeons in Stanford?
Dr. Maloney's average Medicare payment per service is $225. 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. Maloney) 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 →