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WILLIAM MICHAEL MESZAROS M.D.
NPI 1093826000
Orthopaedic Surgery in Gilbert, AZ

Active since August 31, 2006PECOS EnrolledAccepts Medicare Assignment
3487 S MERCY RD, GILBERT, AZ 85297(480) 222-5601(480) 222-5607 Get Directions Write a Review

NPPES record last updated: June 8, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 8, 2022, Aug 21, 2019, Oct 3, 2018 (3 updates tracked since 2018).

About William Michael Meszaros M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM MICHAEL MESZAROS M.D. (NPI 1093826000) is an individual orthopaedic surgery provider in Gilbert, Arizona, licensed in Arizona (40346) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Ferrell Hospital Community Foundations, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1093826000
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameWILLIAM MICHAEL MESZAROSCredential: M.D.
Location Address3487 S MERCY RDGilbert, AZ 85297-0432
Mailing Address3487 S Mercy RdGilbert, AZ 85297-0432 · (480) 222-5601 · Fax (480) 222-5607
Phone(480) 222-5601
Fax(480) 222-5607
Sole ProprietorNo
Medical School CMSUniversity Of Arizona College Of MedicineGraduated 1997
Enumeration DateAugust 31, 2006
Last NPPES UpdateJune 8, 20223 updates tracked since enumeration
NPPES CertifiedJune 8, 2022
✔ NPI 1093826000 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
Licenses✔ Licensed in AZ · 40346✔ Licensed in MT · 112270
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Also ListedOrthopaedic Surgery · Sports MedicineTaxonomy 207XX0005X · License 112270 (MT), 40346 (AZ)
3487 S MERCY RD, Gilbert, AZ 85297
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Other Names 1

Former Name (1)William Michael Butcher M.d.

Secondary Practice Locations 2

Location 18035 E Brown Rd Bldg 4Mesa, AZ 85207-3902 · Phone (480) 222-5601 · Fax (480) 222-5607
Location 2221 5th Ave SGlasgow, MT 59230-2600 · Phone (406) 228-3536

Other Identifiers 1

Medicaid424760AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Michael Meszaros M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9335033950
PECOS Enrollment IDI20251223001575
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show William Meszaros reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ferrell Hospital Community Foundation
1,340 mi
Multi-Specialty
HARRISBURG SMALL STREET CLINIC, 250 SMALL STREET
Harrisburg, IL 62946
  • Reassigned Medicare billing, Illinois enrollment
  • 74 clinicians in this Medicare group
NPI 1124905351 (618) 294-8264

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
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.
18 services18 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ferrell Hospital Community Foundations

Critical Access Hospitals · Eldorado, IL
OwnershipVoluntary non-profit - Private
CMS Certification Number141324
Location1201 Pine StreetEldorado, IL 62930 · Saline County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85297 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
97%1,385 patients4/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
24%120 patients1/55-star benchmark: 100%
Falls: Screening for Future Fall Risk
Percentage of patients 65 years of age and older who were screened for future fall risk during the measurement period
81%174 patients4/55-star benchmark: 99%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
99%1,686 patients4/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
88%797 patients4/55-star benchmark: 99%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
38%711 patients2/55-star benchmark: 97%
Preventive Care and Screening: Influenza Immunization
Percentage of patients aged 6 months and older seen for a visit between October 1 and March 31 who received an influenza immunization OR who reported previous receipt of an influenza immunization
30%283 patients2/55-star benchmark: 88%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients tobacco: 59% · 272 patients
63%272 patients
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
71%797 patients3/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
56%797 patients4/55-star benchmark: 59%
Use of High-Risk Medications in the Elderly
Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication.
Lower rates are better for this measure.
Patients 2+: 0% · 165 patients
0%165 patients5/55-star benchmark: 100%
Weight Assessment and Counseling for Nutrition and Physical Activity for Children and Adolescents
Percentage of patients 3-17 years of age who had an outpatient visit with a Primary Care Physician (PCP) or Obstetrician/Gynecologist (OB/GYN) and who had evidence of the following during the measurement period. Three rates are reported.
98%63 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Neuromuscular stimulator, electronic shock unit E0745
DME-Other DME · category DE000N
1 supplier64 claims71 services$66.71 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JONATHAN S. HOTT, M.D., P.L.C.
Physical Medicine & Rehabilitation
3487 S MERCY RD
GILBERT, AZ 85297
Maricopa County (602) 840-0681
AKDHC, LLC
Internal Medicine (Nephrology)
3487 S MERCY RD
GILBERT, AZ 85297
Maricopa County (480) 857-2381
SPORTS & ORTHOPAEDIC SPECIALISTS OF ARIZONA LLC
Orthopaedic Surgery
3487 S MERCY RD
GILBERT, AZ 85297
Maricopa County (480) 222-5601
DR. JACOBO ABRAHAM CABRERA-RAMIREZ MD
Pain Medicine (Pain Medicine)
3487 S MERCY RD
GILBERT, AZ 85297
Maricopa County (480) 860-0681

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Meszaros's NPI number?

The NPI number for William Meszaros is 1093826000. It was assigned to this individual provider in the NPPES registry on August 31, 2006. The provider is also known as William Michael Butcher M.D..

Where is William Meszaros located?

William Meszaros practices at 3487 S Mercy Rd, Gilbert, AZ 85297. The listed phone number is (480) 222-5601.

What is William Meszaros's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is William Meszaros enrolled in Medicare?

Yes. William Meszaros is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for William Meszaros's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Meszaros reassigns Medicare benefits to Ferrell Hospital Community Foundation (Harrisburg, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Meszaros's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Meszaros accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arizona Complete Health, Aspirus Health Plan and Imperial Insurance Companies, Inc. list William Meszaros as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is William Meszaros affiliated with any hospitals?

According to CMS data, William Meszaros is affiliated with Ferrell Hospital Community Foundations.

When was this NPI record last updated?

The NPPES record for William Meszaros was last updated on June 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.