Dr. Michael S. Christensen, MD
- Medicare services, 2024
- 399
- Medicare patients, 2024
- 187
- Part D claims, 2024
- 185
- Hospital affiliations
- 1
- Industry payments
- $134
- Practice address
- 975 Port Washington Road, Grafton, WI 53024
- Practice phone
- Call (262) 329-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Christensen'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 S. Christensen is a hospitalist in Grafton, Wisconsin
Dr. Christensen practices at Aurora Medical Center - Grafton in Grafton, Wisconsin, part of Advocate Health.
Dr. Christensen's NPI, 1588754667, was assigned on October 13, 2006. Dr. Christensen graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1990. Dr. Christensen holds Wisconsin license 56845.
- NPI
- 1588754667NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779474440
- NPI enumeration date
- October 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (262) 329-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael S. Christensen practices at Aurora Medical Center - Grafton in Grafton, Wisconsin
Dr. Christensen's primary practice is Aurora Medical Center - Grafton, at 975 Port Washington Road, Grafton, WI 53024 in Ozaukee County. The practice phone is (262) 329-1000.
- Aurora Medical Center - Grafton975 Port Washington Road, Grafton, WI 53024 · Ozaukee CountyPhone(262) 329-1000
Source: Dmand AI Affiliation Data
Dr. Michael S. Christensen is affiliated with 2 sites of care and 1 medical group
Dr. Christensen's primary practice is Aurora Medical Center - Grafton in Grafton, Wisconsin, part of Advocate Health. The medical group on file is Aurora Medical Group. Dmand AI also links Dr. Christensen to 1 more hospital outpatient department, 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 S. Christensen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Christensen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aurora Medical Center - Grafton | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael S. Christensen is one of 773 hospitalists in Wisconsin
Hospitalist is Dr. Christensen's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dmand AI has Dr. Christensen's licenses on file in 2 states: Wisconsin and Illinois.
Specialties and state licenses
- Hospitalist, WisconsinPrimary
- Internal medicine, Illinois
Hospitalists near Dr. Christensen
Counts of hospitalists 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 S. Christensen billed Medicare for 399 services in 2024
CMS data shows 399 Medicare services from Dr. Christensen across 5 procedure codes in 2024, for 187 Medicare patients. Medicare paid $25,279 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Christensen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4672024: 39915%
Dr. Christensen compared with the Wisconsin median for hospitalists, 2024
- Dr. Christensen
- Wisconsin median
- Medicare services
- 399vs 35712% above
- Medicare patients
- 187vs 16513% above
- Part D claims
- 17vs 7878% below
Medians across 743 hospitalists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Christensen'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. Christensen and other hospitalists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael S. Christensen treated 187 Medicare patients in 2024, average age 78
CMS counts 187 Medicare patients who saw Dr. Christensen in 2024. The largest group is 85 and over, with 62 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 2.92, 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. Christensen's median patient age at 79, with 53% women.
Dr. Christensen's Medicare patients by age, 2024
Dr. Christensen's Medicare patients by sex, 2024
- Women8948%
- Men9852%
Chronic conditions among Dr. Christensen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis65%
- Chronic kidney disease53%
- Heart failure50%
- Atrial fibrillation48%
- Ischemic heart disease48%
- Mood disorders45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Christensen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael S. Christensen wrote 185 Medicare Part D claims in 2024
In 2024, Dr. Christensen wrote 185 Medicare Part D claims for 97 patients. 94% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $150 in total drug cost. In 2023, CMS named 14 claims across 1 drug.
Dr. Christensen's Part D claims by kind of drug, 2024
- Generic173 claims94%
- Brand-name12 claims6%
Dr. Christensen'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. Christensen's Part D claims, 2024
- Opioids9%17 of 185 claims
- Antibiotics22%40 of 185 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: 142024: 1721%
Drugs named by CMS: 1 in 2024, 1 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 S. Christensen takes part in Medicare
Dr. Christensen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Michael S. Christensen received $134 in industry payments from 2016 to 2021
CMS Open Payments shows 6 general payments to Dr. Christensen from 5 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Stimwave Technologies Incorporated paid the most, $69.
General payments to Dr. Christensen by program year, 2016 to 2021
Companies that paid Dr. Christensen the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael S. Christensen graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Christensen graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael S. Christensen'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) |
| 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 S. Christensen
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 S. Christensen's NPI number?
Dr. Michael S. Christensen's NPI number is 1588754667. It was assigned on October 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael S. Christensen?
Dr. Michael S. Christensen is a hospitalist in Grafton, Wisconsin. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Michael S. Christensen practice?
Dr. Christensen practices at 975 Port Washington Road, Grafton, WI 53024. Dr. Christensen's primary practice is Aurora Medical Center - Grafton in Grafton, Wisconsin, part of Advocate Health. Dmand AI also links Dr. Christensen to 1 hospital outpatient department.
What is Dr. Michael S. Christensen's office phone number?
The practice phone on file for Dr. Christensen is (262) 329-1000.
What is Dr. Michael S. Christensen's medical license number?
Dr. Christensen holds Wisconsin license 56845, one of the licenses on file in 2 states.
Which states has Dr. Michael S. Christensen been licensed in?
Dmand AI has state licenses on file for Dr. Christensen in Wisconsin and Illinois.
Which hospitals is Dr. Michael S. Christensen affiliated with?
Dr. Christensen practices at Aurora Medical Center - Grafton in Grafton, Wisconsin.
What medical group is Dr. Michael S. Christensen part of?
Dr. Christensen is linked to Aurora Medical Group.
Does Dr. Michael S. Christensen accept Medicare?
Yes. CMS data shows Dr. Christensen billed Medicare for 399 services in 2024, and Dr. Christensen accepts Medicare assignment.
How many Medicare patients does Dr. Michael S. Christensen see?
CMS counts 187 Medicare patients who saw Dr. Christensen in 2024, with an average age of 78.
Show 5 more questionsShow fewer questions
What services does Dr. Michael S. Christensen bill to Medicare?
In 2024, Dr. Christensen's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99238) and hospital inpatient care (99223).
Where did Dr. Michael S. Christensen go to medical school?
Dr. Christensen graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1990.
What drugs does Dr. Michael S. Christensen prescribe most?
In 2024 Medicare Part D data, Dr. Christensen's most prescribed drugs by claims were Cefuroxime.
Has Dr. Michael S. Christensen received payments from drug or device companies?
CMS Open Payments shows $134 in general payments to Dr. Christensen from 5 companies from 2016 to 2021. The largest total came from Stimwave Technologies Incorporated.
How long has Dr. Michael S. Christensen been practicing?
Dr. Christensen graduated from medical school in 1990, 36 years ago.
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