Dr. Gary W. Stewart, MD
- Medicare services, 2023
- 12
- Medicare patients, 2024
- 17
- Part D claims, 2019
- 16
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 1032 E Sumner St, Hartford, WI 53027
- Practice phone
- Call (262) 673-2300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Stewart's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gary W. Stewart is a general surgeon in Hartford, Wisconsin
Dr. Stewart practices at Aurora Medical Center - Washington County in Hartford, Wisconsin, part of Advocate Health.
Dr. Stewart's NPI, 1003848458, was assigned on July 7, 2006. Dr. Stewart graduated from University of Texas Medical School at Houston in 1979. Dr. Stewart holds Wisconsin license 24267.
- NPI
- 1003848458NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052360195
- NPI enumeration date
- July 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (262) 673-2300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gary W. Stewart practices at Aurora Medical Center - Washington County in Hartford, Wisconsin
Dr. Stewart's primary practice is Aurora Medical Center - Washington County, at 1032 E Sumner St, Hartford, WI 53027 in Washington County. The practice phone is (262) 673-2300.
- Aurora Medical Center - Washington County1032 E Sumner St, Hartford, WI 53027 · Washington CountyPhone(262) 673-2300
Source: Dmand AI Affiliation Data
Dr. Gary W. Stewart is affiliated with 2 sites of care and 1 medical group
Dr. Stewart's primary practice is Aurora Medical Center - Washington County in Hartford, Wisconsin, part of Advocate Health. The medical group on file is Aurora Advanced Healthcare. Dmand AI also links Dr. Stewart to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gary W. Stewart's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stewart practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aurora Medical Center - Washington County | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gary W. Stewart is one of 565 general surgeons in Wisconsin
Surgery is Dr. Stewart's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Stewart is licensed in Wisconsin.
Specialties and state licenses
- Surgery, WisconsinPrimary
General surgeons near Dr. Stewart
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gary W. Stewart billed Medicare for 12 services in 2023
CMS data shows 12 Medicare services from Dr. Stewart across 1 procedure code in 2023, for 17 Medicare patients. Medicare paid $612 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Stewart's Medicare services by type, 2020 to 2023
- 2020
- 2023
- Office and hospital visits
- 2020: 332023: 1264%
Dr. Stewart compared with the Wisconsin median for general surgeons, 2023
- Dr. Stewart
- Wisconsin median
- Medicare services
- 12vs 9988% below
- Medicare patients
- 17vs 10083% below
- Part D claims
- 16vs 3757% below
Medians across 557 general surgeons in Wisconsin with Dmand AI profiles that report each measure.
Dr. Stewart's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stewart and other general surgeons in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gary W. Stewart treated 17 Medicare patients in 2024, average age 72
CMS counts 17 Medicare patients who saw Dr. Stewart in 2024. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.60, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Stewart's median patient age at 61, with 70% women.
Chronic conditions among Dr. Stewart's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stewart's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women70%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gary W. Stewart wrote 16 Medicare Part D claims in 2019
In 2019, Dr. Stewart wrote 16 Medicare Part D claims. They cover 1 drug, with $88 in total drug cost. In 2018, CMS named 42 claims across 3 drugs.
Dr. Stewart's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 422019: 1662%
Drugs named by CMS: 1 in 2019, 3 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Gary W. Stewart takes part in Medicare
Dr. Stewart accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gary W. Stewart graduated from University of Texas Medical School at Houston
Dr. Stewart graduated from University of Texas Medical School at Houston in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gary W. Stewart's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gary W. Stewart
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gary W. Stewart's NPI number?
Dr. Gary W. Stewart's NPI number is 1003848458. It was assigned on July 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gary W. Stewart?
Dr. Gary W. Stewart is a general surgeon in Hartford, Wisconsin. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Gary W. Stewart practice?
Dr. Stewart practices at 1032 E Sumner St, Hartford, WI 53027. Dr. Stewart's primary practice is Aurora Medical Center - Washington County in Hartford, Wisconsin, part of Advocate Health. Dmand AI also links Dr. Stewart to 1 group practice or clinic.
What is Dr. Gary W. Stewart's office phone number?
The practice phone on file for Dr. Stewart is (262) 673-2300.
What is Dr. Gary W. Stewart's medical license number?
Dr. Stewart holds Wisconsin license 24267.
Which hospitals is Dr. Gary W. Stewart affiliated with?
Dr. Stewart practices at Aurora Medical Center - Washington County in Hartford, Wisconsin.
What medical group is Dr. Gary W. Stewart part of?
Dr. Stewart is linked to Aurora Advanced Healthcare.
Does Dr. Gary W. Stewart accept Medicare?
Yes. CMS data shows Dr. Stewart billed Medicare for 12 services in 2023, and Dr. Stewart accepts Medicare assignment.
How many Medicare patients does Dr. Gary W. Stewart see?
CMS counts 17 Medicare patients who saw Dr. Stewart in 2024, with an average age of 72.
What services does Dr. Gary W. Stewart bill to Medicare?
In 2023, Dr. Stewart's most billed Medicare services were hospital inpatient care (99221).
Show 3 more questionsShow fewer questions
Where did Dr. Gary W. Stewart go to medical school?
Dr. Stewart graduated from University of Texas Medical School at Houston in 1979.
What drugs does Dr. Gary W. Stewart prescribe most?
In 2019 Medicare Part D data, Dr. Stewart's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
How long has Dr. Gary W. Stewart been practicing?
Dr. Stewart graduated from medical school in 1979, 47 years ago.
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