Medicare Enrolled

Dr. Robert Williams, PAC

Surgical Physician Assistant · Houston, TX
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
6410 FANNIN, Houston, TX 77030
7137955300
In practice since 2007 (19 years)
NPI: 1639208697 verify on NPPES ↗
High
DATA COVERAGE
Data in 3 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. Williams 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. Williams

Dr. Robert Williams is a surgical physician assistant in Houston, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Williams performed 198 Medicare services across 138 unique beneficiaries.

The Data Coverage level for Dr. Williams is High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 19 years in practice ▲ Top 47% volume in TX

Medicare Practice Summary

Medicare Utilization ↗
198
Medicare services
Top 47% in TX for surgical physician assistant
138
Unique beneficiaries
$63
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~10 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
Partial removal of spine bone with nerve release, each additional segment
This procedure involves the partial removal of spinal bone to relieve pressure on the spinal cord or nerves. It is billed for each additional spinal segment treated beyond the initial segment.
 91 $21 $350
Partial removal of spine bone with nerve release, 1 segment
A surgical procedure involving the partial removal of a bone segment in the spine to relieve pressure on the spinal cord or nerves. This is performed on a single spinal segment.
 36 $112 $1,750
Fusion of upper spine bone with removal of disc and release of spinal cord or nerve, each additional disc 27 $41 $685
Spinal fusion with disc removal and nerve release, 1 disc
This surgery connects two or more vertebrae in the upper spine to stabilize the area. It involves removing a damaged disc and relieving pressure on the spinal cord or nerve.
 22 $171 $2,725
Spinal stabilization device placement, 2-3 segments
Surgical placement of a device to stabilize the front of two to three spinal segments.
 11 $74 $1,175
Spinal stabilization device placement, 4-7 segments
Surgical placement of a device to stabilize the front of the spine across four to seven bone segments.
 11 $77 $1,213
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.
24.7% high complexity
0.0% medium
75.3% routine
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Geographic Context

Surgical physician assistants within 10 mi
380
Per 100K population
8.0
County median income
$73,104
Nearest hospital
MEMORIAL HERMANN - TEXAS 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 — No payments N/A
Disciplinary History — Not public N/A

This provider has data in 3 of 4 available federal datasets, with a Data Coverage level of High. This measures how much public data is available about a provider — not how good they are. How we calculate this →

Summary

Dr. Williams is a mixed practice specialist, with moderate Medicare volume, with 19 years of NPI registration.

This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →

Frequently Asked Questions

Is Dr. Williams experienced with partial removal of spine bone with nerve release, each additional segment?
Based on Medicare claims data, Dr. Williams performed 91 partial removal of spine bone with nerve release, each additional segment 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.
How do Dr. Williams's costs compare to other surgical physician assistants in Houston?
Dr. Williams's average Medicare payment per service is $63. 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 High for Dr. Williams) 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 ↗, 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. The Transparency Score measures 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 →