Dr. Stan L. Markus, MD
- Medicare services, 2024
- 774
- Medicare patients, 2024
- 126
- Part D claims, 2024
- 643
- Hospital affiliations
- 2
- Industry payments
- $759
- 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. Markus' 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. Stan L. Markus is a general surgeon in Waukesha, Wisconsin
Dr. Markus practices at ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin, part of ProHealth Care.
Dr. Markus' NPI, 1134103641, was assigned on November 30, 2005. Dr. Markus graduated from Wright State University Boonshoft School of Medicine in 1982. Dr. Markus holds Wisconsin license 28258.
- NPI
- 1134103641NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426009697
- NPI enumeration date
- November 30, 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
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stan L. Markus practices at ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin
Dr. Markus' 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. Stan L. Markus is affiliated with 4 sites of care and 4 medical groups
Dr. Markus' primary practice is ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin, part of ProHealth Care. Dr. Markus is also affiliated with ProHealth Oconomowoc Memorial Hospital. The medical group on file is ProHealth Medical Group. Dmand AI also links Dr. Markus to 3 more medical groups, 1 group practice or clinic and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stan L. Markus' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Markus practices, 4 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 |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across ProHealth Care and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Stan L. Markus is one of 565 general surgeons in Wisconsin
Surgery is Dr. Markus' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Markus is licensed in Wisconsin.
Specialties and state licenses
- Surgery, WisconsinPrimary
General surgeons near Dr. Markus
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. Stan L. Markus billed Medicare for 774 services in 2024
CMS data shows 774 Medicare services from Dr. Markus across 7 procedure codes in 2024, for 126 Medicare patients. Medicare paid $30,029 for them.
Dr. Markus' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6222024: 6023%
- Surgery
- 2023: 862024: 11534%
- Tests and treatments
- 2023: 192024: 57200%
Where Dr. Markus' Medicare services took place, 2024
- In an office50866%
- In a facility26634%
Dr. Markus compared with the Wisconsin median for general surgeons, 2024
- Dr. Markus
- Wisconsin median
- Medicare services
- 774vs 997.8 times
- Medicare patients
- 126vs 10026% above
- Part D claims
- 603vs 3716.3 times
Medians across 557 general surgeons in Wisconsin with Dmand AI profiles that report each measure.
Dr. Markus' 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.
Need commercial claims for Dr. Markus?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Markus and other general surgeons in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stan L. Markus treated 126 Medicare patients in 2024, average age 76
CMS counts 126 Medicare patients who saw Dr. Markus in 2024. The largest group is 75 to 84, with 46 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 2.27, 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. Markus' median patient age at 76, with 51% women.
Dr. Markus' Medicare patients by age, 2024
Dr. Markus' Medicare patients by sex, 2024
- Women6451%
- Men6249%
Chronic conditions among Dr. Markus' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Heart failure44%
- Atrial fibrillation41%
- Chronic kidney disease40%
- Diabetes37%
- Ischemic heart disease34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Markus' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stan L. Markus wrote 643 Medicare Part D claims in 2024
In 2024, Dr. Markus wrote 643 Medicare Part D claims for 183 patients. 77% of them were for generic drugs. CMS names the drug for 603 of them, across 14 drugs with 11 or more claims each, at $7,720 in total drug cost. In 2023, CMS named 519 claims across 13 drugs.
Dr. Markus' Part D claims by kind of drug, 2024
- Generic493 claims77%
- Brand-name150 claims23%
Dr. Markus' 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. Markus' Part D claims, 2024
- Opioids2%13 of 643 claims
- Antibiotics41%263 of 643 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: 5192024: 60316%
Drugs named by CMS: 14 in 2024, 13 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. Stan L. Markus ranks in the 82nd percentile for removal of tissue in Medicare
Dr. Markus accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 72 procedures of removal of tissue by Dr. Markus, more than 82% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Markus ranks in Medicare procedure volume
- Removal of tissue
- 82nd percentile72 procedures
- Removal of skin lesions
- 73rd percentile61 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Stan L. Markus received $759 in industry payments from 2016 to 2025
CMS Open Payments shows 12 general payments to Dr. Markus from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Organogenesis Inc. paid the most, $401.
General payments to Dr. Markus by program year, 2016 to 2025
Companies that paid Dr. Markus 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. Stan L. Markus graduated from Wright State University Boonshoft School of Medicine
Dr. Markus graduated from Wright State University Boonshoft School of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stan L. Markus'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. Stan L. Markus
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. Stan L. Markus' NPI number?
Dr. Stan L. Markus' NPI number is 1134103641. It was assigned on November 30, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Stan L. Markus?
Dr. Stan L. Markus is a general surgeon in Waukesha, Wisconsin. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Stan L. Markus practice?
Dr. Markus practices at 725 American Ave, Waukesha, WI 53188. Dr. Markus' primary practice is ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin, part of ProHealth Care. Dmand AI also links Dr. Markus to 3 medical groups, 1 group practice or clinic and 1 home health agency.
What is Dr. Stan L. Markus' office phone number?
The practice phone on file for Dr. Markus is (262) 928-1000.
What is Dr. Stan L. Markus' medical license number?
Dr. Markus holds Wisconsin license 28258.
Which hospitals is Dr. Stan L. Markus affiliated with?
Dr. Markus practices at ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin. Dr. Markus is also affiliated with ProHealth Oconomowoc Memorial Hospital.
What medical group is Dr. Stan L. Markus part of?
Dr. Markus is linked to ProHealth Medical Group. Dmand AI links Dr. Markus to 3 more medical groups.
Does Dr. Stan L. Markus accept Medicare?
Yes. CMS data shows Dr. Markus billed Medicare for 774 services in 2024, and Dr. Markus accepts Medicare assignment.
How many Medicare patients does Dr. Stan L. Markus see?
CMS counts 126 Medicare patients who saw Dr. Markus in 2024, with an average age of 76.
What services does Dr. Stan L. Markus bill to Medicare?
In 2024, Dr. Markus' most billed Medicare services were office visit, established patient (99213), office visit, established patient (99212) and surgery: skin and soft tissue (17250).
Show 4 more questionsShow fewer questions
Where did Dr. Stan L. Markus go to medical school?
Dr. Markus graduated from Wright State University Boonshoft School of Medicine in 1982.
What drugs does Dr. Stan L. Markus prescribe most?
In 2024 Medicare Part D data, Dr. Markus' most prescribed drugs by claims were Ssd, Cephalexin and Gentamicin Sulfate.
Has Dr. Stan L. Markus received payments from drug or device companies?
CMS Open Payments shows $759 in general payments to Dr. Markus from 6 companies from 2016 to 2025. The largest total came from Organogenesis Inc.
How long has Dr. Stan L. Markus been practicing?
Dr. Markus graduated from medical school in 1982, 44 years ago.
Selling to surgery practices?
See general surgeons in Wisconsin by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card