Dr. Michael J. Garren, MD
- Medicare services, 2024
- 129
- Medicare patients, 2024
- 106
- Part D claims, 2024
- 19
- Publications
- 7
- MIPS score, 2024
- 83
- Practice address
- 600 Highland Ave, Madison, WI 53792
- Practice phone
- Call (608) 265-1978
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Health Services - Madison (Highland Ave)
College / University Student Health · Madison, Wisconsin
Find Dr. Garren'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. Michael J. Garren is a general surgeon in Madison, Wisconsin
Dr. Garren practices at University Health Services - Madison (Highland Ave) in Madison, Wisconsin.
Dr. Garren's NPI, 1013971662, was assigned on April 12, 2006. Dr. Garren graduated from University of Wisconsin School of Medicine in 1989. Dr. Garren holds Wisconsin license 31543.
- NPI
- 1013971662NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850288085
- NPI enumeration date
- April 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 265-1978
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael J. Garren practices at University Health Services - Madison (Highland Ave) in Madison, Wisconsin
Dr. Garren's primary practice is University Health Services - Madison (Highland Ave), at 600 Highland Ave, Madison, WI 53792. The practice phone is (608) 265-1978.
- University Health Services - Madison (Highland Ave)600 Highland Ave, Madison, WI 53792Phone(608) 265-1978
Source: Dmand AI Affiliation Data
Dr. Michael J. Garren is affiliated with 3 sites of care and 1 medical group
Dr. Garren's primary practice is University Health Services - Madison (Highland Ave) in Madison, Wisconsin. Dr. Garren is also affiliated with University Hospital. The medical group on file is UW Health. Dmand AI also links Dr. Garren to 1 more group practice or clinic, named with a free account. Dr. Garren's employer is on file too: a school & student health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael J. Garren's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Garren practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Health Services - Madison (Highland Ave) | 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. Michael J. Garren is one of 565 general surgeons in Wisconsin
Surgery is Dr. Garren's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Garren is licensed in Wisconsin.
Specialties and state licenses
- Surgery, WisconsinPrimary
General surgeons near Dr. Garren
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. Michael J. Garren billed Medicare for 129 services in 2024
CMS data shows 129 Medicare services from Dr. Garren across 4 procedure codes in 2024, for 106 Medicare patients. Medicare paid $9,712 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Garren's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 822024: 11439%
- Surgery
- 2023: 02024: 15
Dr. Garren compared with the Wisconsin median for general surgeons, 2024
- Dr. Garren
- Wisconsin median
- Medicare services
- 129vs 9930% above
- Medicare patients
- 106vs 1006% above
- Part D claims
- 12vs 3768% below
Medians across 557 general surgeons in Wisconsin with Dmand AI profiles that report each measure.
Dr. Garren'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. Garren and other general surgeons in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael J. Garren treated 106 Medicare patients in 2024, average age 69
CMS counts 106 Medicare patients who saw Dr. Garren in 2024. The largest group is 65 to 74, with 49 patients. 70% of them have high blood pressure, and 60% have high cholesterol. 14% are also on Medicaid. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Garren's median patient age at 63, with 47% women.
Dr. Garren's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Garren's Medicare patients by sex, 2024
- Women5249%
- Men5451%
Chronic conditions among Dr. Garren's Medicare patients, 2024
- High blood pressure70%
- High cholesterol60%
- Arthritis35%
- Anxiety34%
- Mood disorders34%
- Depression29%
- Diabetes21%
- Atrial fibrillation20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Garren'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
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael J. Garren wrote 19 Medicare Part D claims in 2024
In 2024, Dr. Garren wrote 19 Medicare Part D claims for 11 patients. 74% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $2,456 in total drug cost. In 2016, CMS named 52 claims across 1 drug.
Dr. Garren's Part D claims by kind of drug, 2024
- Generic14 claims74%
- Brand-name and other5 claims26%
Dr. Garren's most prescribed drugs by claims, 2022
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, 2016 to 2022
- 2016
- 2022
- Claims for drugs CMS names
- 2016: 522022: 1277%
Drugs named by CMS: 1 in 2022, 1 in 2016.
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. Michael J. Garren scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Garren for performance year 2024, reported as part of a group. Dr. Garren accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 32 procedures of hernia repair (minimally invasive) by Dr. Garren, more than 96% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Garren's MIPS scores, performance year 2024
- 83of 100Final score
- 87.8of 100Quality
- 77of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Garren ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 96th percentile32 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael J. Garren has 7 publications on record
Dmand AI links 7 papers to Dr. Garren, published from 2011 to 2020. 2011 was the busiest year, with 2. The most frequent topics are Obesity, Morbid, Gastric Bypass and Laparoscopy. Dr. Garren's most frequent co-authors are Jacob A. Greenberg, MD, Fahad Aziz, MD and Erik A. Bowman, MD.
Dr. Garren's papers by year, 2011 to 2020
Topics Dr. Garren writes about most
- Obesity, Morbid
- Gastric Bypass
- Laparoscopy
- Length of Stay
- Postoperative Complications
- Reoperation
- Body Mass Index
- Patient Readmission
Dr. Garren's most frequent co-authors
Recent publications by Dr. Garren
J Surg Res
Surg Obes Relat Dis
See who Dr. Garren researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Garren works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael J. Garren received $16,941 in industry payments from 2022 to 2025
CMS Open Payments shows 61 general payments to Dr. Garren from 3 drug and device companies from 2022 to 2025. Education make up the largest share, 57% of the total. Intuitive Surgical, Inc. paid the most, $16,636.
General payments to Dr. Garren by program year, 2022 to 2025
General payments to Dr. Garren by kind, 2022 to 2025
- Education$9,60057%
- Travel and lodging$4,08624%
- Food and beverage$2,23913%
- Speaker and faculty fees$1,0006%
- Gifts$160%
Companies that paid Dr. Garren the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael J. Garren graduated from University of Wisconsin School of Medicine
Dr. Garren graduated from University of Wisconsin School of Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael J. Garren'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Michael J. Garren
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. Michael J. Garren's NPI number?
Dr. Michael J. Garren's NPI number is 1013971662. It was assigned on April 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael J. Garren?
Dr. Michael J. Garren is a general surgeon in Madison, Wisconsin. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Michael J. Garren practice?
Dr. Garren practices at 600 Highland Ave, Madison, WI 53792. Dr. Garren's primary practice is University Health Services - Madison (Highland Ave) in Madison, Wisconsin. Dmand AI also links Dr. Garren to 1 group practice or clinic.
What is Dr. Michael J. Garren's office phone number?
The practice phone on file for Dr. Garren is (608) 265-1978.
What is Dr. Michael J. Garren's medical license number?
Dr. Garren holds Wisconsin license 31543.
Which hospitals is Dr. Michael J. Garren affiliated with?
Dr. Garren is affiliated with University Hospital.
What medical group is Dr. Michael J. Garren part of?
Dr. Garren is linked to UW Health.
Does Dr. Michael J. Garren accept Medicare?
Yes. CMS data shows Dr. Garren billed Medicare for 129 services in 2024, and Dr. Garren accepts Medicare assignment.
What is Dr. Michael J. Garren's MIPS score?
Dr. Garren's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Dr. Michael J. Garren see?
CMS counts 106 Medicare patients who saw Dr. Garren in 2024, with an average age of 69.
Show 7 more questionsShow fewer questions
What services does Dr. Michael J. Garren bill to Medicare?
In 2024, Dr. Garren's most billed Medicare services were office visit, new patient (99203), office visit, established patient (99212) and office visit, established patient (99213).
Where did Dr. Michael J. Garren go to medical school?
Dr. Garren graduated from University of Wisconsin School of Medicine in 1989.
What drugs does Dr. Michael J. Garren prescribe most?
In 2022 Medicare Part D data, Dr. Garren's most prescribed drugs by claims were Sucralfate.
Has Dr. Michael J. Garren received payments from drug or device companies?
CMS Open Payments shows $16,941 in general payments to Dr. Garren from 3 companies from 2022 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Michael J. Garren been practicing?
Dr. Garren graduated from medical school in 1989, 37 years ago.
Does Dr. Michael J. Garren do research?
Dmand AI links 7 publications to Dr. Garren, published from 2011 to 2020.
Who does Dr. Michael J. Garren publish with?
Dr. Garren's most frequent co-authors are Jacob A. Greenberg, MD (2 shared papers), Fahad Aziz, MD (1 shared paper) and Erik A. Bowman, MD (1 shared paper).
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