Medicare Enrolled

Dr. Thomas Weiser, MD

Surgery · Palo Alto, CA
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
Consulting-driven
300 PASTEUR DR, Palo Alto, CA 94304
6507234000
In practice since 2005 (20 years)
NPI: 1144201625 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. Weiser 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. Weiser

Dr. Thomas Weiser is a surgery specialist in Palo Alto, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Weiser performed 78 Medicare services across 45 unique beneficiaries.

Between the years covered by Open Payments, Dr. Weiser received a total of $4,778 from 3 pharmaceutical and/or device companies across 9 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in surgery. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Weiser 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.

✓ 20 years in practice ▲ 78 Medicare services $4,778 industry payments

Medicare Practice Summary

Medicare Utilization ↗
78
Medicare services
Bottom 20% in CA for surgery
Lower Medicare volume may reflect subspecialty focus, hospital-based work, or a higher share of non-Medicare patients.
45
Unique beneficiaries
$137
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~4 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
Critical care, first 30-74 min
Emergency medical care for a critically ill or injured patient lasting between 30 and 74 minutes. This service involves direct patient care and medical decision making to stabilize the patient.
 46 $192 $1,853
Hospital follow-up visit, low complexity
Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service.
 19 $45 $170
Initial hospital admission, low complexity
Initial hospital inpatient or observation care for a new patient involving straightforward or low-level medical decision making, with at least 40 minutes total time on the date of the encounter.
 13 $76 $359
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 ↗
$4,778
Total received (2018-2024)
Avg $683/year across 7 years
Top 37% in CA for surgery
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
3
Companies
9
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.

Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$4,700 (98.4%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$78 (1.6%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$700
2023
$700
2022
$700
2021
$700
2020
$1,200
2019
$700
2018
$78

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Merck Sharp & Dohme LLC
$700
Top 3 companies account for 100.0% of 2024 payments
All-time payments by company (2018-2024) ›
Merck Sharp & Dohme Corporation
$2,600
Merck Sharp & Dohme LLC
$2,100
PFIZER INC.
$78
Top 3 companies account for 100.0% of all-time payments
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 →

The majority of payments (98%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers.

Looking for a surgery specialist in Palo Alto?
Compare surgerists in the Palo Alto area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Surgerists within 10 mi
322
Per 100K population
16.9
County median income
$159,674
Nearest hospital
PALO ALTO VA 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 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. Weiser is a mixed practice specialist, with moderate Medicare volume, with consulting-driven industry engagement, with 20 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. Weiser experienced with critical care, first 30-74 min?
Based on Medicare claims data, Dr. Weiser performed 46 critical care, first 30-74 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. Weiser receive payments from pharmaceutical companies?
Yes. Dr. Weiser received a total of $4,778 from 3 companies across 9 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. Weiser's costs compare to other surgerists in Palo Alto?
Dr. Weiser's average Medicare payment per service is $137. 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. Weiser) 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 →