Dr. Mark A. Timm, MD
- Medicare services, 2024
- 140
- Medicare patients, 2024
- 120
- Part D claims, 2024
- 28
- Hospital affiliations
- 3
- Industry payments
- $4,123
- Practice address
- W180 N8085 Town Hall Rd, Menomonee Falls, WI 53051
- Practice phone
- Call (262) 251-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Timm's professional email, personal email and mobile number
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Dr. Mark A. Timm is a general surgeon in Menomonee Falls, Wisconsin
Dr. Timm practices at Froedtert Menomonee Falls Hospital in Menomonee Falls, Wisconsin, part of Froedtert ThedaCare Health.
Dr. Timm's NPI, 1093780124, was assigned on February 22, 2006. Dr. Timm graduated from University of North Dakota School of Medicine in 1987. Dr. Timm holds Wisconsin license 29682.
- NPI
- 1093780124NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991617649
- NPI enumeration date
- February 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (262) 251-1000
- 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. Mark A. Timm practices at 2 locations in Menomonee Falls, Wisconsin
Dr. Timm's primary practice is Froedtert Menomonee Falls Hospital, at W180 N8085 Town Hall Rd, Menomonee Falls, WI 53051 in Waukesha County. The practice phone is (262) 251-1000. Dr. Timm also practices at Froedtert Menomonee Falls Hospital, 180 Town Hall Rd, Menomonee Falls, WI 53051.
- Froedtert Menomonee Falls HospitalPrimaryW180 N8085 Town Hall Rd, Menomonee Falls, WI 53051 · Waukesha CountyPhone(262) 251-1000
- Froedtert Menomonee Falls Hospital180 Town Hall Rd, Menomonee Falls, WI 53051 · Waukesha CountyPhone(262) 255-2500
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Mark A. Timm is affiliated with 6 sites of care and 3 medical groups
Dr. Timm's primary practice is Froedtert Menomonee Falls Hospital in Menomonee Falls, Wisconsin, part of Froedtert ThedaCare Health. Dr. Timm is also affiliated with Froedtert West Bend Hospital. The medical group on file is Froedtert & the Medical College of Wisconsin Community Physicians. Dmand AI also links Dr. Timm to 1 more hospital, 3 group practices and clinics and 2 medical groups, 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. Mark A. Timm's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Timm practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Froedtert Menomonee Falls Hospital | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Mark A. Timm is one of 565 general surgeons in Wisconsin
Surgery is Dr. Timm's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Timm is licensed in Wisconsin.
Specialties and state licenses
- Surgery, WisconsinPrimary
General surgeons near Dr. Timm
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. Mark A. Timm billed Medicare for 140 services in 2024
CMS data shows 140 Medicare services from Dr. Timm across 6 procedure codes in 2024, for 120 Medicare patients. Medicare paid $11,313 for them.
Dr. Timm's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 932024: 14051%
- Surgery
- 2023: 132024: 0100%
Where Dr. Timm's Medicare services took place, 2024
- In an office3626%
- In a facility10474%
Dr. Timm compared with the Wisconsin median for general surgeons, 2024
- Dr. Timm
- Wisconsin median
- Medicare services
- 140vs 9941% above
- Medicare patients
- 120vs 10020% above
- Part D claims
- 60vs 3762% above
Medians across 557 general surgeons in Wisconsin with Dmand AI profiles that report each measure.
Dr. Timm's 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. Timm and other general surgeons in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark A. Timm treated 120 Medicare patients in 2024, average age 73
CMS counts 120 Medicare patients who saw Dr. Timm in 2024. The largest group is 65 to 74, with 57 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 18% are also on Medicaid. Their average risk score is 1.50, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Timm's median patient age at 63, with 49% women.
Dr. Timm's Medicare patients by age, 2024
Dr. Timm's Medicare patients by sex, 2024
- Women6353%
- Men5748%
Chronic conditions among Dr. Timm's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis41%
- Ischemic heart disease28%
- Mood disorders28%
- Chronic kidney disease27%
- Depression25%
- Heart failure25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Timm's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark A. Timm wrote 28 Medicare Part D claims in 2024
In 2024, Dr. Timm wrote 28 Medicare Part D claims for 23 patients. 86% of them were for generic drugs. They cover 3 drugs, with $5,297 in total drug cost. In 2022, CMS named 76 claims across 3 drugs.
Dr. Timm's Part D claims by kind of drug, 2024
- Generic24 claims86%
- Brand-name and other4 claims14%
Dr. Timm's most prescribed drugs by claims, 2023
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. Timm's Part D claims, 2024
- Opioids43%12 of 28 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 762023: 6021%
Drugs named by CMS: 3 in 2023, 3 in 2022.
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. Mark A. Timm ranks in the 48th percentile for colonoscopy in Medicare
Dr. Timm accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 20 procedures of colonoscopy by Dr. Timm, more than 48% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Timm ranks in Medicare procedure volume
- Colonoscopy
- 48th percentile20 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 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. Mark A. Timm received $4,123 in industry payments from 2016 to 2025
CMS Open Payments shows 52 general payments to Dr. Timm from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 69% of the total. Intuitive Surgical, Inc. paid the most, $2,735.
General payments to Dr. Timm by program year, 2016 to 2025
General payments to Dr. Timm by kind, 2016 to 2025
- Food and beverage$2,83069%
- Travel and lodging$1,26331%
- Education$160%
- Gifts$140%
Companies that paid Dr. Timm 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. Mark A. Timm graduated from University of North Dakota School of Medicine
Dr. Timm graduated from University of North Dakota School of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark A. Timm'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice 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. Mark A. Timm
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. Mark A. Timm's NPI number?
Dr. Mark A. Timm's NPI number is 1093780124. It was assigned on February 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark A. Timm?
Dr. Mark A. Timm is a general surgeon in Menomonee Falls, Wisconsin. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Mark A. Timm practice?
Dr. Timm practices at W180 N8085 Town Hall Rd, Menomonee Falls, WI 53051. Dr. Timm also practices at 180 Town Hall Rd, Menomonee Falls, WI 53051. Dr. Timm's primary practice is Froedtert Menomonee Falls Hospital in Menomonee Falls, Wisconsin, part of Froedtert ThedaCare Health. Dmand AI also links Dr. Timm to 1 hospital, 3 group practices and clinics and 2 medical groups.
What is Dr. Mark A. Timm's office phone number?
The practice phone on file for Dr. Timm is (262) 251-1000.
What is Dr. Mark A. Timm's medical license number?
Dr. Timm holds Wisconsin license 29682.
Which hospitals is Dr. Mark A. Timm affiliated with?
Dr. Timm practices at Froedtert Menomonee Falls Hospital in Menomonee Falls, Wisconsin. Dr. Timm is also affiliated with Froedtert West Bend Hospital. Dmand AI links Dr. Timm to 1 more hospital.
What medical group is Dr. Mark A. Timm part of?
Dr. Timm is linked to Froedtert & the Medical College of Wisconsin Community Physicians. Dmand AI links Dr. Timm to 2 more medical groups.
Does Dr. Mark A. Timm accept Medicare?
Yes. CMS data shows Dr. Timm billed Medicare for 140 services in 2024, and Dr. Timm accepts Medicare assignment.
How many Medicare patients does Dr. Mark A. Timm see?
CMS counts 120 Medicare patients who saw Dr. Timm in 2024, with an average age of 73.
What services does Dr. Mark A. Timm bill to Medicare?
In 2024, Dr. Timm's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99223).
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Where did Dr. Mark A. Timm go to medical school?
Dr. Timm graduated from University of North Dakota School of Medicine in 1987.
What drugs does Dr. Mark A. Timm prescribe most?
In 2023 Medicare Part D data, Dr. Timm's most prescribed drugs by claims were Sod Sulf-Potass Sulf-Mag Sulf, Clenpiq and Hydrocodone-Acetaminophen.
Has Dr. Mark A. Timm received payments from drug or device companies?
CMS Open Payments shows $4,123 in general payments to Dr. Timm from 12 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Mark A. Timm been practicing?
Dr. Timm graduated from medical school in 1987, 39 years ago.
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