DR. TREVOR M WILLIAMS M.D.
NPI 1528294436
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Carmichael, CA


Quality Rating: 96.95 out of 100 score

NPI Status: Active since June 05, 2009

Contact Information

6555 COYLE AVE
CARMICHAEL, CA
ZIP 95608
Phone: (916) 536-3665
Fax: (916) 536-3593

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  • Individual
  • Male
  • Years of Experience 17
  • Thoracic Surgery (Cardiothoracic Vascula...
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About TREVOR WILLIAMS

This page provides the complete NPI Profile along with additional information for Trevor Williams, a provider established in Carmichael, California with a medical specialization in Thoracic Surgery (cardiothoracic Vascular Surgery) and more than 17 years of experience. He graduated from University Of California, San Francisco School Of Medicine in 2009. The healthcare provider is registered in the NPI registry with number 1528294436 assigned on June 2009. The practitioner's primary taxonomy code is 208G00000X with license number A87074 (CA). The provider is registered as an individual and his NPI record was last updated 9 years ago.

NPI
1528294436
Provider Name
DR. TREVOR M WILLIAMS M.D.
Gender
Male
Entity Type
Individual
Location Address
6555 COYLE AVE CARMICHAEL, CA 95608
Location Phone
(916) 536-3665
Location Fax
(916) 536-3593
Mailing Address
3400 DATA DR RANCHO CORDOVA, CA 95670
Medical School Name
UNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduation Year
2009
Is Sole Proprietor?
No
Enumeration Date
06-05-2009
Last Update Date
03-21-2016
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Thoracic Surgery (Cardiothoracic Vascular Surgery)

Taxonomy Code
208G00000X
Type
Allopathic & Osteopathic Physicians
License No.
A87074
License State
CA
Taxonomy Description
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1208600000XAllopathic & Osteopathic Physicians

Surgery

A87074 (CA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
GR0100250MEDICAID (05)CA 

Medicare Participation & PECOS Enrollment Status

Trevor Williams is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Trevor Williams is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 2264587575

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20090909000472

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

This service was performed 15 times for 15 patients

Diagnostic exam of lung airway using an endoscope

This procedure involves a doctor inserting a thin, flexible tube called an endoscope into your lung airway. It allows the doctor to view the airway and diagnose any issues. The process is safe and helps in accurate diagnosis.

This service was performed 21 times for 21 patients

Established patient office or other outpatient visit, 20-29 minutes

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 201 times for 126 patients

Established patient office or other outpatient visit, 30-39 minutes

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

This service was performed 19 times for 17 patients

Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes

This procedure involves a special tube with a camera (endoscope) entering your lung airways. Guided by ultrasound, it collects samples from 1-2 lymph nodes. This helps doctors understand and diagnose potential issues in your lungs.

This service was performed 12 times for 12 patients

Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes

This procedure involves using a special scope and ultrasound to examine your lung airways and sample tissue from 3 or more lymph nodes. It aids in diagnosing lung conditions and checking lymph node health.

This service was performed 11 times for 11 patients

Irrigation and suction of lung airways to obtain cells using an endoscope

This is a procedure where a thin, flexible tube called an endoscope is inserted through your mouth into the lungs. A small amount of saline is then introduced to wash the airways. The fluid, along with cells from the lung, is suctioned back for analysis.

This service was performed 11 times for 11 patients

New patient office or other outpatient visit, 30-44 minutes

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

This service was performed 84 times for 84 patients

Repair of hernia of muscle at esophagus and stomach with implantation of mesh using an endoscope

This procedure fixes a hernia, a bulge or tear, in the muscle where the esophagus meets the stomach. Using an endoscope, a thin tube with a camera, a mesh is implanted to strengthen the area and prevent future hernias.

This service was performed 18 times for 18 patients

Telephone medical discussion with physician, 11-20 minutes

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

This service was performed 36 times for 30 patients

Upper gastrointestinal (GI) endoscopy for acid reflux

An upper GI endoscopy is a procedure to examine your esophagus and stomach using a thin, flexible tube called an endoscope. It helps diagnose conditions like acid reflux by identifying any inflammation or damage. It's generally safe, performed under sedation, and takes about 15-30 minutes.

This service was performed for 26 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $45.21 for a new patient copayment and $18.75 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 95608 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99205

  • Average New Patient Price $180.85
  • Minimum New Patient Price $60.44
  • Maximum New Patient Price $180.85
  • Average New Patient Copayment $45.21
  • Minimum New Patient Copayment $15.11
  • Maximum New Patient Copayment $45.21

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $75.03
  • Minimum Established Patient Price $19.88
  • Maximum Established Patient Price $148.15
  • Average Established Patient Copayment $18.75
  • Minimum Established Patient Copayment $4.97
  • Maximum Established Patient Copayment $37.03

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Overall MIPS Quality Performance

The provider participated in CMS Quality Payment Program under the Merit-based Incentive Payment System (MIPS) and has an overall final score of 96.95, based on four performance areas: quality, improvement activities, promoting interoperability, and cost. The purpose of this information is to help people with Medicare make informed decisions and incentivize doctors and clinicians to maximize performance.

The Merit-based Incentive Payment System (MIPS) is a way providers could use to participate in CMS Quality Payment Program (QPP). The MIPS program affects clinician reimbursement for Part B covered professional services and also rewards them for improving the quality of patient care and outcomes.

  • Final Score: 96.95 out of 100

    The MIPS program evaluates providers across multiple categories with a specific weight for each category resulting a in a MIPS final score that ranges from 0 to 100 points. The MIPS Final Score determines whether providers receive a negative, neutral or positive MIPS payment adjustment.

  • Quality Score: 81.32

    The Quality category assesses providers performance on clinical practices and patient outcomes under the traditional MIPS program. The quality measures help identify the quality of healthcare processes, outcomes, and patient experiences. The Quality measure category compromises 40% providers final MPIS scores.

    There are six collection types for MIPS quality measures: Electronic Clinical Quality Measures (eCQMs), MIPS Clinical Quality Measures (CQMs), Qualified Clinical Data Registry (QCDR) Measures, Medicare Part B claims measures, CMS Web Interface measures and The Consumer Assessment of Healthcare Providers and Systems (CAHPS) for MIPS Survey.

  • Promoting Interoperability Score: 100

    The Interoperability category measures the providers ability to use technology to exchange and make use of healthcare information in a way that is less burdensome and improves outcomes. The Interoperability measure category compromises 25% providers final MPIS scores.

    The MIPS Interoperability measure focuses on the use of certified electronic health record technology (CEHRT) to improve patient access health information, the exchange of information between clinicians and pharmacies and the systematic collection, analysis, and interpretation of healthcare data.

  • Improvement Activities Score: 40

    The Improvement Activities performance category evaluates the providers participation in clinical activities that support the improvement of clinical practice, care delivery, and outcomes. Providers have the option to choose 2 to 4 activities from an inventory of over 100 improvement activities. Providers typically choose the activities that best fit their needs. The improvement activities measure category compromises 15% providers final MPIS scores.

    The Improvement measures aim to better patient engagement, patient safety and other areas of patient care. The Improvement Activities category compromises 15% of providers final MPIS scores.

  • Cost Score: N/A

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

  • Cost Score: N/A

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

Reviews for DR. TREVOR M WILLIAMS M.D.

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1528294436
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
254849846
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 5 + 4 + 8 + 4 + 9 + 8 + 4 + 6 + 24 = 74
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
80 - 74 = 66

The NPI number 1528294436 is valid because the calculated check digit 6 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1831191980DR. DEBORAH K. PLANTE M.D.
Individual
Internal Medicine (Endocrinology, Diabetes & Metabolism)6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-2500
1841250222 MELISSA SCHREIBER PA
Individual
Internal Medicine (Infectious Disease)6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 201-1388
1760427017 GLENN LAW M.D.
Individual
Pediatrics6555 COYLE AVE SUITE 310
CARMICHAEL, CA 95608
(916) 965-4612
1235153511DR. MICHAEL ROBERT KLEIN JR. M.D.
Individual
Orthopaedic Surgery6555 COYLE AVE SUITE 235
CARMICHAEL, CA 95608
(916) 863-7301
1942215736 MWANGA MURANGA KAZADI M.D.
Individual
Obstetrics & Gynecology (Gynecology)6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-2500
1518975242 KAREN TAUGHER O.D.
Individual
Ophthalmology6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-2500
1104939933DR. EDWARD WILLIAM YOUNGER III M.D.
Individual
Orthopaedic Surgery6555 COYLE AVE SUITE 235
CARMICHAEL, CA 95608
(916) 200-0087
1710091848EDWARD WILLIAM YOUNGER, III, M.D., INC.
Organization
Orthopaedic Surgery6555 COYLE AVE SUITE 235
CARMICHAEL, CA 95608
(916) 200-0087
1407963812 STEPHEN L. MORRISON M.D.
Individual
Internal Medicine (Cardiovascular Disease)6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-2500
1871603928 RONALD T. ZIELINSKY M.D.
Individual
Obstetrics & Gynecology6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-3500
1215048681 MICHELLE F. MATTISON-KELLY M.D.
Individual
Pediatrics6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-3520
1437260825 FERN S. TAKEMOTO M.D.
Individual
Pediatrics6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 733-3333
1730290131 ERIC D. MORSE M.D.
Individual
Surgery6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-2500
1386755767 JILL WALSH M.D.
Individual
Pediatrics6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-2500
1659472298 GABRIEL GALOFRE M.D.
Individual
Hospitalist6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-3500
1154422798 MEGAN H. ANASCO O.D.
Individual
Optometrist6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-3500
1245331537 ANNA ALEKSEEVNA PETROVICH D.O.
Individual
Family Medicine6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-2500
1154422442 JENNIFER L. OSBORN M.D.
Individual
Hospitalist6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-2500
1659472058 RAFIEH HAJIANI M.D.
Individual
Hospitalist6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-3500
1760583041 DANTON KONO M.D.
Individual
Pediatrics6555 COYLE AVE
CARMICHAEL, CA 95608
(916) 536-2500

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1528294436, enumerated in the NPI registry as an "individual" on June 05, 2009

The provider is located at 6555 Coyle Ave Carmichael, Ca 95608 and the phone number is (916) 536-3665

The provider's speciality is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X

The provider has more than 17 years of experience. He graduated from University Of California, San Francisco School Of Medicine in 2009.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

The provider has an overall high rating in the following quality measures: quality clinical practices and patient outcomes and experiences , uses technology to exchange and make use of healthcare information.

Medicare beneficiaries should expect a typical cost of $180.85 with an average copayment of $45.21 for new patient appointments. Established patients should expect a typical charge of $75.03 and an average copayment of 18.75. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope, Diagnostic exam of lung airway using an endoscope, Established patient office or other outpatient visit, 20-29 minutes, Established patient office or other outpatient visit, 30-39 minutes, Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes, Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes, Irrigation and suction of lung airways to obtain cells using an endoscope, New patient office or other outpatient visit, 30-44 minutes, Repair of hernia of muscle at esophagus and stomach with implantation of mesh using an endoscope, Telephone medical discussion with physician, 11-20 minutes and Upper gastrointestinal (GI) endoscopy for acid reflux.

This NPI record was last updated on June 05, 2009. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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