Dr. Michael A. Zimmer, MD
- Medicare services, 2024
- 173
- Medicare patients, 2024
- 187
- Part D claims, 2024
- 119
- Hospital affiliations
- 2
- Medical groups
- 8
- Practice address
- 700 West Avenue South, La Crosse, WI 54601
- Practice phone
- Call (608) 785-0940
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zimmer'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 A. Zimmer is an emergency medicine physician in La Crosse, Wisconsin
Dr. Zimmer practices at Mayo Clinic Health System in La Crosse in La Crosse, Wisconsin, part of Mayo Clinic.
Dr. Zimmer's NPI, 1477712750, was assigned on June 3, 2008. Dr. Zimmer graduated from Medical College of Wisconsin in 2008. Dr. Zimmer holds Wisconsin license 56967-20.
- NPI
- 1477712750NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860670841
- NPI enumeration date
- June 3, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 785-0940
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael A. Zimmer practices at Mayo Clinic Health System in La Crosse in La Crosse, Wisconsin
Dr. Zimmer's primary practice is Mayo Clinic Health System in La Crosse, at 700 West Avenue South, La Crosse, WI 54601 in La Crosse County. The practice phone is (608) 785-0940.
- Mayo Clinic Health System in La Crosse700 West Avenue South, La Crosse, WI 54601 · La Crosse CountyPhone(608) 785-0940
Source: Dmand AI Affiliation Data
Dr. Michael A. Zimmer is affiliated with 3 sites of care and 8 medical groups
Dr. Zimmer's primary practice is Mayo Clinic Health System in La Crosse in La Crosse, Wisconsin, part of Mayo Clinic. Dr. Zimmer is also affiliated with Mayo Clinic Health System in Sparta. The medical group on file is Gundersen Lutheran Medical Center. Dmand AI also links Dr. Zimmer to 7 more medical groups and 1 group practice or clinic, 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. Michael A. Zimmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimmer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Health System in La Crosse | Available with a free account |
| +2 more sites and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael A. Zimmer is one of 1,211 emergency medicine physicians in Wisconsin
Emergency medicine is Dr. Zimmer's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Zimmer's licenses on file in 2 states: Wisconsin and Michigan.
Specialties and state licenses
- Emergency medicine, WisconsinPrimary
- Student in an organized health care education/training program, Michigan
Emergency medicine physicians near Dr. Zimmer
Counts of emergency medicine physicians 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 A. Zimmer billed Medicare for 173 services in 2024
CMS data shows 173 Medicare services from Dr. Zimmer across 3 procedure codes in 2024, for 187 Medicare patients. Medicare paid $15,263 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Zimmer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 982024: 17377%
Dr. Zimmer compared with the Wisconsin median for emergency medicine physicians, 2024
- Dr. Zimmer
- Wisconsin median
- Medicare services
- 173vs 24630% below
- Medicare patients
- 187vs 22115% below
- Part D claims
- 18vs 5768% below
Medians across 1,249 emergency medicine physicians in Wisconsin with Dmand AI profiles that report each measure.
Dr. Zimmer'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael A. Zimmer treated 187 Medicare patients in 2024, average age 69
CMS counts 187 Medicare patients who saw Dr. Zimmer in 2024. The largest group is 65 to 74, with 57 patients. 73% of them have high cholesterol, and 71% have high blood pressure. 44% are also on Medicaid. Their average risk score is 2.01, 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. Zimmer's median patient age at 54, with 54% women.
Dr. Zimmer's Medicare patients by age, 2024
Dr. Zimmer's Medicare patients by sex, 2024
- Women8747%
- Men10053%
Chronic conditions among Dr. Zimmer's Medicare patients, 2024
- High cholesterol73%
- High blood pressure71%
- Arthritis44%
- Anxiety43%
- Mood disorders40%
- Diabetes39%
- Chronic kidney disease34%
- Depression34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zimmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael A. Zimmer wrote 119 Medicare Part D claims in 2024
In 2024, Dr. Zimmer wrote 119 Medicare Part D claims for 95 patients. 93% of them were for generic drugs. CMS names the drug for 18 of them, across 1 drug with 11 or more claims each, at $181 in total drug cost. In 2023, CMS named 37 claims across 3 drugs.
Dr. Zimmer's Part D claims by kind of drug, 2024
- Generic111 claims93%
- Brand-name and other8 claims7%
Dr. Zimmer's 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. Zimmer's Part D claims, 2024
- Opioids13%15 of 119 claims
- Antibiotics39%46 of 119 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: 372024: 1851%
Drugs named by CMS: 1 in 2024, 3 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
How Dr. Michael A. Zimmer takes part in Medicare
Dr. Zimmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of nail tissue: 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. Michael A. Zimmer graduated from Medical College of Wisconsin
Dr. Zimmer graduated from Medical College of Wisconsin in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael A. Zimmer'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) |
| 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 A. Zimmer
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 A. Zimmer's NPI number?
Dr. Michael A. Zimmer's NPI number is 1477712750. It was assigned on June 3, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael A. Zimmer?
Dr. Michael A. Zimmer is an emergency medicine physician in La Crosse, Wisconsin. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Michael A. Zimmer practice?
Dr. Zimmer practices at 700 West Avenue South, La Crosse, WI 54601. Dr. Zimmer's primary practice is Mayo Clinic Health System in La Crosse in La Crosse, Wisconsin, part of Mayo Clinic. Dmand AI also links Dr. Zimmer to 7 medical groups and 1 group practice or clinic.
What is Dr. Michael A. Zimmer's office phone number?
The practice phone on file for Dr. Zimmer is (608) 785-0940.
What is Dr. Michael A. Zimmer's medical license number?
Dr. Zimmer holds Wisconsin license 56967-20, one of the licenses on file in 2 states.
Which states has Dr. Michael A. Zimmer been licensed in?
Dmand AI has state licenses on file for Dr. Zimmer in Wisconsin and Michigan.
Which hospitals is Dr. Michael A. Zimmer affiliated with?
Dr. Zimmer practices at Mayo Clinic Health System in La Crosse in La Crosse, Wisconsin. Dr. Zimmer is also affiliated with Mayo Clinic Health System in Sparta.
What medical group is Dr. Michael A. Zimmer part of?
Dr. Zimmer is linked to Gundersen Lutheran Medical Center. Dmand AI links Dr. Zimmer to 7 more medical groups.
Does Dr. Michael A. Zimmer accept Medicare?
Yes. CMS data shows Dr. Zimmer billed Medicare for 173 services in 2024, and Dr. Zimmer accepts Medicare assignment.
How many Medicare patients does Dr. Michael A. Zimmer see?
CMS counts 187 Medicare patients who saw Dr. Zimmer in 2024, with an average age of 69.
Show 4 more questionsShow fewer questions
What services does Dr. Michael A. Zimmer bill to Medicare?
In 2024, Dr. Zimmer's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).
Where did Dr. Michael A. Zimmer go to medical school?
Dr. Zimmer graduated from Medical College of Wisconsin in 2008.
What drugs does Dr. Michael A. Zimmer prescribe most?
In 2024 Medicare Part D data, Dr. Zimmer's most prescribed drugs by claims were Cefadroxil.
How long has Dr. Michael A. Zimmer been practicing?
Dr. Zimmer graduated from medical school in 2008, 18 years ago.
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