Dr. Stephen R. Bartos, MD
- Medicare services, 2024
- 296
- Medicare patients, 2024
- 326
- Part D claims, 2024
- 110
- Hospital affiliations
- 2
- Industry payments
- $7,389
- Practice address
- 725 American Ave, Waukesha, WI 53188
- Practice phone
- Call (262) 928-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Bartos' professional email, personal email and mobile number
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Dr. Stephen R. Bartos is a general surgeon in Waukesha, Wisconsin
Dr. Bartos practices at ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin, part of ProHealth Care.
Dr. Bartos' NPI, 1083601645, was assigned on September 29, 2005. Dr. Bartos graduated from University of Wisconsin School of Medicine in 1987. Dr. Bartos holds Wisconsin license 37461.
- NPI
- 1083601645NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830170836
- NPI enumeration date
- September 29, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (262) 928-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen R. Bartos practices at ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin
Dr. Bartos' primary practice is ProHealth Waukesha Memorial Hospital, at 725 American Ave, Waukesha, WI 53188 in Waukesha County. The practice phone is (262) 928-1000.
- ProHealth Waukesha Memorial Hospital725 American Ave, Waukesha, WI 53188 · Waukesha CountyPhone(262) 928-1000
Source: Dmand AI Affiliation Data
Dr. Stephen R. Bartos is affiliated with 3 sites of care and 1 medical group
Dr. Bartos' primary practice is ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin, part of ProHealth Care. Dr. Bartos is also affiliated with ProHealth Oconomowoc Memorial Hospital. The medical group on file is Waukesha Surgical Specialists. Dmand AI also links Dr. Bartos 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. Stephen R. Bartos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bartos practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ProHealth Waukesha Memorial Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen R. Bartos is one of 565 general surgeons in Wisconsin
Surgery is Dr. Bartos' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Bartos is licensed in Wisconsin.
Specialties and state licenses
- Surgery, WisconsinPrimary
General surgeons near Dr. Bartos
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. Stephen R. Bartos billed Medicare for 296 services in 2024
CMS data shows 296 Medicare services from Dr. Bartos across 9 procedure codes in 2024, for 326 Medicare patients. Medicare paid $13,712 for them.
Dr. Bartos' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2072024: 15923%
- Tests and treatments
- 2023: 932024: 13747%
- Surgery
- 2023: 172024: 0100%
Where Dr. Bartos' Medicare services took place, 2024
- In an office11138%
- In a facility18563%
Dr. Bartos compared with the Wisconsin median for general surgeons, 2024
- Dr. Bartos
- Wisconsin median
- Medicare services
- 296vs 993.0 times
- Medicare patients
- 326vs 1003.3 times
- Part D claims
- 74vs 372.0 times
Medians across 557 general surgeons in Wisconsin with Dmand AI profiles that report each measure.
Dr. Bartos' most billed Medicare procedure codes, 2024
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. Bartos and other general surgeons in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen R. Bartos treated 326 Medicare patients in 2024, average age 76
CMS counts 326 Medicare patients who saw Dr. Bartos in 2024. The largest group is 65 to 74, with 135 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.90, 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. Bartos' median patient age at 72, with 46% women.
Dr. Bartos' Medicare patients by age, 2024
Dr. Bartos' Medicare patients by sex, 2024
- Women14946%
- Men17754%
Chronic conditions among Dr. Bartos' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Ischemic heart disease46%
- Chronic kidney disease43%
- Atrial fibrillation32%
- Diabetes31%
- Heart failure30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bartos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen R. Bartos wrote 110 Medicare Part D claims in 2024
In 2024, Dr. Bartos wrote 110 Medicare Part D claims for 56 patients. 98% of them were for generic drugs. CMS names the drug for 74 of them, across 2 drugs with 11 or more claims each, at $667 in total drug cost. In 2023, CMS named 74 claims across 2 drugs.
Dr. Bartos' Part D claims by kind of drug, 2024
- Generic108 claims98%
- Brand-name and other2 claims2%
Dr. Bartos' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Bartos' Part D claims, 2024
- Opioids26%29 of 110 claims
- Antibiotics15%17 of 110 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 742024: 74No change
Drugs named by CMS: 2 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Stephen R. Bartos ranks in the 72nd percentile for hernia repair (minimally invasive) in Medicare
Dr. Bartos accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 11 procedures of hernia repair (minimally invasive) by Dr. Bartos, more than 72% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Bartos ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 72nd percentile11 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Leg revascularization (restoring blood flow): 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Varicose vein removal: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stephen R. Bartos received $7,389 in industry payments from 2016 to 2025
CMS Open Payments shows 168 general payments to Dr. Bartos from 28 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 48% of the total. Intuitive Surgical, Inc. paid the most, $3,977.
General payments to Dr. Bartos by program year, 2016 to 2025
General payments to Dr. Bartos by kind, 2016 to 2025
- Food and beverage$3,54848%
- Education$3,00841%
- Travel and lodging$83311%
Companies that paid Dr. Bartos the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen R. Bartos graduated from University of Wisconsin School of Medicine
Dr. Bartos graduated from University of Wisconsin School of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen R. Bartos'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)Medicare Part D Prescribers - by Provider (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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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. Stephen R. Bartos
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. Stephen R. Bartos' NPI number?
Dr. Stephen R. Bartos' NPI number is 1083601645. It was assigned on September 29, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen R. Bartos?
Dr. Stephen R. Bartos is a general surgeon in Waukesha, Wisconsin. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Stephen R. Bartos practice?
Dr. Bartos practices at 725 American Ave, Waukesha, WI 53188. Dr. Bartos' primary practice is ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin, part of ProHealth Care. Dmand AI also links Dr. Bartos to 1 group practice or clinic.
What is Dr. Stephen R. Bartos' office phone number?
The practice phone on file for Dr. Bartos is (262) 928-1000.
What is Dr. Stephen R. Bartos' medical license number?
Dr. Bartos holds Wisconsin license 37461.
Which hospitals is Dr. Stephen R. Bartos affiliated with?
Dr. Bartos practices at ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin. Dr. Bartos is also affiliated with ProHealth Oconomowoc Memorial Hospital.
What medical group is Dr. Stephen R. Bartos part of?
Dr. Bartos is linked to Waukesha Surgical Specialists.
Does Dr. Stephen R. Bartos accept Medicare?
Yes. CMS data shows Dr. Bartos billed Medicare for 296 services in 2024, and Dr. Bartos accepts Medicare assignment.
How many Medicare patients does Dr. Stephen R. Bartos see?
CMS counts 326 Medicare patients who saw Dr. Bartos in 2024, with an average age of 76.
What services does Dr. Stephen R. Bartos bill to Medicare?
In 2024, Dr. Bartos' most billed Medicare services were blood vessel study (93880), office visit, new patient (99203) and blood vessel study (93922).
Show 4 more questionsShow fewer questions
Where did Dr. Stephen R. Bartos go to medical school?
Dr. Bartos graduated from University of Wisconsin School of Medicine in 1987.
What drugs does Dr. Stephen R. Bartos prescribe most?
In 2024 Medicare Part D data, Dr. Bartos' most prescribed drugs by claims were Clopidogrel and Hydrocodone-Acetaminophen.
Has Dr. Stephen R. Bartos received payments from drug or device companies?
CMS Open Payments shows $7,389 in general payments to Dr. Bartos from 28 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Stephen R. Bartos been practicing?
Dr. Bartos graduated from medical school in 1987, 39 years ago.
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