Medicare Enrolled

Dr. Mechelle Williams, ACNP

Acute Care Nurse Practitioner · Katy, TX
Practice pattern: Clinical Cardiology— Primarily office-based clinical cardiology
24275 KATY FWY STE 400, Katy, TX 77494
3463877171
In practice since 2007 (18 years)
NPI: 1598986150 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. Mechelle Williams is an acute care nurse practitioner in Katy, TX, with 18 years in practice. Based on federal Medicare data, Dr. Williams performed 1,446 Medicare services across 602 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.

✓ 18 years in practice▲ Top 4% volume in TX

Medicare Practice Summary

Medicare Utilization ↗
1,446
Medicare services
Top 4% in TX for acute care nurse practitioner
602
Unique beneficiaries
$84
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~80 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.

ProcedureVolumeAvg. paidAvg. submitted
Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes610$121$365
Chronic care management, first 20 min/month184$41$125
Home visit, established patient, moderate complexity172$79$260
Home visit, established patient, low complexity87$50$156
Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month73$57$170
Chronic care management, additional 20 min/month63$32$105
Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes46$27$95
Prolonged preventive service(s) (beyond the typical service time of the primary procedure), in the office or other outpatient setting requiring direct patient contact beyond the usual service; first 30 minutes (list separately in addition to code for preve38$54$135
Annual wellness visit, follow-up32$111$265
Comprehensive assessment of and care planning for patients requiring chronic care management services (list separately in addition to primary monthly care management service)31$39$130
Chronic care management services for two or more chronic conditions, additional 30 minutes provided personally by health care professional, per calendar month30$41$125
Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes28$124$435
Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month21$91$260
Advance care planning consultation, first 30 min16$57$170
Prolonged preventive service(s) (beyond the typical service time of the primary procedure), in the office or other outpatient setting requiring direct patient contact beyond the usual service; each additional 30 minutes (list separately in addition to code15$54$135
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.
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Geographic Context

Acute Care Nurse Practitioners within 10 mi
664
Per 100K population
77.2
County median income
$113,409
Nearest hospital
MEMORIAL HERMANN KATY HOSPITAL
0.0 mi

Data Sources

Provider Registry✓ NPPESWeekly updates
Medicare Enrollment✓ PECOSMonthly updates
Practice Data✓ Medicare Util.Annual (CY lag)
Industry Payments— No paymentsN/A
Disciplinary History— Not publicN/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 clinical cardiology specialist, with above-average Medicare volume (top 4% in TX), with 18 years of practice experience.

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 residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes?
Based on Medicare claims data, Dr. Williams performed 610 residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 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 acute care nurse practitioners in Katy?
Dr. Williams's average Medicare payment per service is $84. 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 →