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Mackenzie Williams Mcmath , PAA

Anesthesiologist Assistant โ€ข Marietta, GA

Active NPI 1194372854 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

2540 Windy Hill Rd Se
Marietta, GA 300678605

Call 7707940477 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

2540 Windy Hill Rd Se

Marietta, GA 300678605

Telephone 7707940477
Organization at the Same NPPES Address or Phone
Kennestone Hospital, Inc. Facility NPI 1700853041

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 3 distinct additional practice-address records in Douglasville, GA; Hiram, GA; Marietta, GA. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Wellstar Medical Group Llc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2019

Medicare-allowed amount

About $6,016 in 2023

The total amount Medicare approved for these services in 2023. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2023.

Paid by Medicare

About $4,800 in 2023

The part of the Medicare-allowed amount that Medicare itself paid in 2023, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2023.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $38.77 in 2025

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2025.

Guide: How to read an Open Payments record

Years since graduation

7 years (graduated 2019)

CMS Doctors and Clinicians data list 2019 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2019

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Mackenzie Mcmath has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Compared with the same specialty in Marietta and Georgia

Billing and prescribing volume is not a quality rating.

Medicare Part B

Comparisons use 2024 data. The latest CMS data for Mackenzie Mcmath are from 2023.

98 active clinicians are listed under Anesthesiologist Assistant with a practice address in Marietta, GA (1,541 in Georgia).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Marietta

0% of these 98 clinicians have the CMS telehealth indicator.

76.5% of these 98 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): fewer than 11 records totaling $38.77.

Manufacturer Payment Nature Product Type Amount ($)
Mindray DS USA, Inc.
Food and Beverage
In-kind items and services
A7 ANESTHESIA SYSTEM General $38.77

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2023.

CMS Part B ยท Data Year 2023
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2019โ€“2022 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2020โ€“2023; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope
19 19 $1153.68 $79.71
01402 Anesthesia for procedure for total knee joint replacement
14 14 $2504.16 $182.24
01922 Anesthesia for x-ray or radiation therapy
12 12 $1457.91 $102.45
00811 Anesthesia for other procedure on large bowel using an endoscope
11 11 $946.55 $65.52

Source: CMS Part B by Provider and Service, 2023; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2023-04-17
Anesthesiologist Assistant Primary Specialty

NUCC Taxonomy Code: 367H00000X

An individual certified by the state to perform anesthesia services under the direct supervision of an anesthesiologist. Anesthesiologist Assistants are required to have a bachelor's degree with a premed curriculum prior to entering a two-year anesthesiology assistant program, which is focused upon the delivery and maintenance of anesthesia care as well as advanced patient monitoring techniques. An Anesthesiologist Assistant must work as a member of the anesthesia care team under the direction of a qualified Anesthesiologist.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Georgia Composite Medical Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - ANESTHESIOLOGY ASSISTANT

Medicare Enrollment ID

I20200129001343

Enrollment State Jurisdiction

GA

PECOS Control ID

9931535606

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Wellstar Medical Group Llc

677 Church Nest, Marietta, GA 300601101

Wellstar Medical Group Llc

2550 Windy Hill Rd Se, Marietta, GA 300678605

Phone: 4043219900

Wellstar Medical Group Llc

2540 Windy Hill Serd, Marietta, GA 300678605

Phone: 7706441274

Wellstar Medical Group Llc

2540 Windy Hill Rd, Marietta, GA 300678605

Phone: 7706441570

Wellstar Medical Group Llc

677 Church St Ne, Marietta, GA 300601101

Phone: 4707938585

Wellstar Medical Group Llc

625 Church Nest, Marietta, GA 300601101

Phone: 7704222004

Wellstar Medical Group Llc

5150 Stilesboro N W Rd, Kennesaw, GA 301527742

Phone: 7704248222

Secondary Practice Locations

677 Church St Ne

Marietta, GA 300601101

Phone: 7707940477

8954 Hospital Dr

Douglasville, GA 301342272

Phone: 7707940477

146 Bill Carruth Pkwy

Hiram, GA 301413749

Phone: 7707940477

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

40 listed
NPI 1033256490

Doctor of Medicine (M.D.)

Adrianne Adams , AA

Anesthesiologist Assistant

NPI 1376793752
Kirsten Adamson , PAA

Anesthesiologist Assistant

NPI 1194976191
Ryan Alishio , PAA

Anesthesiologist Assistant

NPI 1538479274
Shaniah Alishio , PA-A

Anesthesiologist Assistant

NPI 1487715165

PAA

Christian Allen , PA

Anesthesiologist Assistant

NPI 1720060122

Physician Assistant

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
๐Ÿ“
Updated Practice Location April 17, 2023

Registered at 2540 WINDY HILL RD SE, MARIETTA, GA 300678605 (Tel: 7707940477)

๐Ÿ“
Updated Business Mailing Address April 17, 2023

Registered at 2540 WINDY HILL RD SE, MARIETTA, GA 300678605 (Tel: 4706441274)

๐Ÿ‘ค
Provider Name / Credentials Updated April 17, 2023

Recorded as MACKENZIE MCMATH, PAA

โœ…
NPI Profile Active September 04, 2019

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) September 04, 2019

Registered at 677 CHURCH ST NE, MARIETTA, GA 300601101 (Tel: 7707940477)

๐Ÿ“
Business Mailing Address (Initial Record) September 04, 2019

Registered at 531 ROSELANE ST NW STE 830, MARIETTA, GA 300606979 (Tel: 7707940477)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) September 04, 2019

Recorded as MACKENZIE WILLIAMS

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) September 04, 2019

Anesthesiologist Assistant

๐ŸŸข
Initial NPI Registration & Enumeration August 19, 2019

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1194372854
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 19, 2019
Last Update: April 17, 2023
Sole Proprietor: No

Other Anesthesiologist Assistants in Marietta

All Anesthesiologist Assistants in Marietta

Mailing Address

2540 Windy Hill Rd Se

Marietta, GA 300678605

Phone: 4706441274

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.