Dr. Gary W. Stewart , MD
Surgery โข Menomonee Falls, WI
N84w16889 Menomonee Ave
Menomonee Falls, WI 530512810
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
NPI assigned on July 7, 2006; this date does not establish years in practice.
-
Published CMS data list 12 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Published rows only; this is not a quality measure.
-
Published Part B service records, 2023:
- 99221 โ Initial hospital care with straightforward or low level of medical decision making, per day: 12 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
-
Published CMS data list 16 Medicare Part D prescriptions, including refills, in 2019.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2019. Published rows only; this is not a quality measure.
-
Published Part D records, 2019:
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) โ 16 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2019. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table ยท Guide: How to read Medicare Part D prescriber data
-
Medicare Part B services went from 399 in 2017 to 12 in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2017โ2023.
Practice Location & Contact Primary Location
N84w16889 Menomonee Ave
Menomonee Falls, WI 530512810
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Hartford, WI. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Aurora Advanced Healthcare, Inc.. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
University Of Texas Medical School At Houston
1979
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
29 people with Original Medicare in 2023
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2023.
Medicare-allowed amount
About $924 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.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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 $612 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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.
30-day fills
16 standardized 30-day fills in 2019
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$88 in 2019
The total cost of these prescriptions in 2019, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2019.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019โ2025.
Years since graduation
47 years (graduated 1979)
CMS Doctors and Clinicians data list 1979 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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, CMS release of October 2, 2026.
NPI first issued
2006
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.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, CMS release of October 2, 2026; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
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, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Stewart 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.
Can order Medicare-covered services
CMS lists Dr. Stewart as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Menomonee Falls and Wisconsin
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Stewart are from 2023.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Stewart are from 2019.
9 active clinicians are listed under Surgery with a practice address in Menomonee Falls, WI (725 in Wisconsin).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Medicare Part B services
Medicare Part B services decreased 97% from 399 in 2017 to 12 in 2023.
- 2017: 399
- 2018: 332
- 2019: 151
- 2020: 33
- 2023: 12
-
Medicare-allowed amount
Medicare-allowed amount decreased 98% from $50,674 in 2017 to $924 in 2023.
- 2017: $50,674
- 2018: $35,695
- 2019: $17,288
- 2020: $2,964
- 2023: $924
-
Paid by Medicare
Paid by Medicare decreased 98% from $37,819 in 2017 to $612 in 2023.
- 2017: $37,819
- 2018: $25,985
- 2019: $12,495
- 2020: $1,806
- 2023: $612
-
Medicare Part D prescriptions
Medicare Part D prescriptions decreased 90% from 163 in 2015 to 16 in 2019.
- 2015: 163
- 2016: 221
- 2017: 158
- 2018: 42
- 2019: 16
-
30-day fills
30-day fills decreased 92% from 213 in 2015 to 16 in 2019.
- 2015: 213
- 2016: 279
- 2017: 220
- 2018: 53
- 2019: 16
-
Part D drug cost
Part D drug cost decreased 97% from $3,018 in 2015 to $88 in 2019.
- 2015: $3,018
- 2016: $2,718
- 2017: $2,398
- 2018: $2,397
- 2019: $88
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2019), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2022 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, 2017โ2023; 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 |
|---|---|---|---|---|
|
99221
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes
|
12 | 12 | $435.00 | $77.04 |
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.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2019.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 16 | 46 | $88.13 | 14 |
Source: CMS Part D by Provider and Drug, 2019; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2026-06-24NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL SURGERY
I20050117000023
WI
1052360195
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, CMS release of October 2, 2026
Aurora Advanced Healthcare, Inc.
1032 E Sumner St, Hartford, WI 530271608
Phone: 2626732300
Aurora Advanced Healthcare, Inc.
12203 N Corporate Pkwy, Mequon, WI 530923388
Secondary Practice Locations
1640 E Sumner St
Hartford, WI 530272684
Phone: 2626704000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Family Medicine
Doctor of Medicine (M.D.)
Surgery
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Radiology - Diagnostic Radiology
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Physician Assistant
Physician Assistant
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at PO BOX 735044, CHICAGO, IL 606735044 (Tel: 8003262250)
Additional practice office at 1640 E Sumner St, Hartford, WI 530272684
NPI status registered as active in NPPES database
Registered at N84W16889 MENOMONEE AVE, MENOMONEE FALLS, WI 530512810 (Tel: 2622517500)
Registered at 3003 W GOOD HOPE RD, MILWAUKEE, WI 532092042 (Tel: 4143523100)
Recorded as GARY STEWART, M.D.
Surgery (license number reported to NPPES: WI 24267)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Surgery Specialists in Menomonee Falls
- Dr. Mark Timm, MD
- Dr. Allegra Saving, MD
- Dr. Betsy Appel, MD
- Dr. Theresa Quinn, MD
- Dr. Kevin Moss, MD
- Dr. John Haeberlin, MD
More public profiles in Wisconsin
Directory navigation, in NPI number order.
- Andrew Wiegel, PharmD Pharmacist ยท Beloit
- Christine Morgan, FNP Nurse Practitioner ยท Menomonie
- Erica Smits, PT Physical Therapist ยท Green Bay
- Sandra Boerner, APNP Nurse Practitioner - Family ยท Cedarburg
- Daniel Matson Pathology - Hematology ยท Madison
- Kevin Greene, DDS Dentist ยท Madison
- Mitchell Sheley, MD Emergency Medicine ยท Lake Geneva
- Nicole Hembel, NP Nurse Practitioner ยท Milwaukee
- Gabriel Ryan, MD Internal Medicine - Pulmonary Disease ยท Milwaukee
- Alok Arora, MD, MRCP(UK) ACUTE M Hospitalist ยท Marinette
- Jessica Pierobon, MD Hospitalist ยท Madison
- Amy Fannin, APNP Nurse Practitioner - Adult Health ยท Fond Du Lac
Mailing Address
Po Box 735044
Chicago, IL 606735044
Phone: 8003262250