Dr. Sean E. Theisen, MD
- Medicare services, 2024
- 2,254
- Medicare patients, 2024
- 1,724
- Hospital affiliations
- 5
- Industry payments
- $27
- Medical groups
- 4
- Practice address
- 1506 S Oneida St, Appleton, WI 54915
- Practice phone
- Call (920) 738-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Theisen'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. Sean E. Theisen is a diagnostic radiologist in Appleton, Wisconsin
Dr. Theisen practices at Ascension NE Wisconsin - St. Elizabeth Hospital in Appleton, Wisconsin, part of Ascension Health Alliance.
Dr. Theisen's NPI, 1508805243, was assigned on June 6, 2006. Dr. Theisen graduated from Northwestern University Feinberg Medical School in 1996. Dr. Theisen holds Michigan license 4301067468.
- NPI
- 1508805243NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810949096
- NPI enumeration date
- June 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (920) 738-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sean E. Theisen practices at Ascension NE Wisconsin - St. Elizabeth Hospital in Appleton, Wisconsin
Dr. Theisen's primary practice is Ascension NE Wisconsin - St. Elizabeth Hospital, at 1506 S Oneida St, Appleton, WI 54915 in Outagamie County. The practice phone is (920) 738-2000.
- Ascension NE Wisconsin - St. Elizabeth Hospital1506 S Oneida St, Appleton, WI 54915 · Outagamie CountyPhone(920) 738-2000
Source: Dmand AI Affiliation Data
Dr. Sean E. Theisen is affiliated with 8 sites of care and 4 medical groups
Dr. Theisen's primary practice is Ascension NE Wisconsin - St. Elizabeth Hospital in Appleton, Wisconsin, part of Ascension Health Alliance. Dr. Theisen is also affiliated with ThedaCare Regional Medical Center-Appleton. The medical group on file is Radiology Associates of the Fox Valley. Dmand AI also links Dr. Theisen to 3 more hospitals, 3 group practices and clinics and 3 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. Sean E. Theisen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Theisen practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension NE Wisconsin - St. Elizabeth Hospital | Available with a free account |
| +7 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 Ascension Health Alliance and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Sean E. Theisen is one of 782 diagnostic radiologists in Wisconsin
Diagnostic radiology is Dr. Theisen's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Theisen is licensed in Michigan.
Specialties and state licenses
- Diagnostic radiology, MichiganPrimary
Diagnostic radiologists near Dr. Theisen
Counts of diagnostic radiologists 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. Sean E. Theisen billed Medicare for 2,254 services in 2024
CMS data shows 2,254 Medicare services from Dr. Theisen across 35 procedure codes in 2024, for 1,724 Medicare patients. Medicare paid $71,655 for them.
Dr. Theisen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 2,8932024: 2,11427%
- Other services
- 2023: 1102024: 1064%
- Tests and treatments
- 2023: 612024: 3444%
Where Dr. Theisen's Medicare services took place, 2024
- In an office1858%
- In a facility2,06992%
Dr. Theisen compared with the Wisconsin median for diagnostic radiologists, 2024
- Dr. Theisen
- Wisconsin median
- Medicare services
- 2,254vs 1,83623% above
- Medicare patients
- 1,724vs 1,41422% above
Medians across 758 diagnostic radiologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Theisen'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.
Need commercial claims for Dr. Theisen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Theisen and other diagnostic radiologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sean E. Theisen treated 1,724 Medicare patients in 2024, average age 73
CMS counts 1,724 Medicare patients who saw Dr. Theisen in 2024. The largest group is 65 to 74, with 801 patients. 73% of them have high blood pressure, and 72% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.54, 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. Theisen's median patient age at 69, with 58% women.
Dr. Theisen's Medicare patients by age, 2024
Dr. Theisen's Medicare patients by sex, 2024
- Women1,19169%
- Men53331%
Chronic conditions among Dr. Theisen's Medicare patients, 2024
- High blood pressure73%
- High cholesterol72%
- Arthritis57%
- Mood disorders34%
- Anxiety33%
- Ischemic heart disease33%
- Depression31%
- Diabetes31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Theisen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Sean E. Theisen takes part in Medicare
Dr. Theisen 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. Sean E. Theisen received $27 in industry payments from 2016 to 2021
CMS Open Payments shows 2 general payments to Dr. Theisen from 2 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Guerbet LLC paid the most, $16.
General payments to Dr. Theisen by program year, 2016 to 2021
Companies that paid Dr. Theisen 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. Sean E. Theisen graduated from Northwestern University Feinberg Medical School
Dr. Theisen graduated from Northwestern University Feinberg Medical School in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Sean E. Theisen'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) |
| 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. Sean E. Theisen
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What is Dr. Sean E. Theisen's NPI number?
Dr. Sean E. Theisen's NPI number is 1508805243. It was assigned on June 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Sean E. Theisen?
Dr. Sean E. Theisen is a diagnostic radiologist in Appleton, Wisconsin. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Sean E. Theisen practice?
Dr. Theisen practices at 1506 S Oneida St, Appleton, WI 54915. Dr. Theisen's primary practice is Ascension NE Wisconsin - St. Elizabeth Hospital in Appleton, Wisconsin, part of Ascension Health Alliance. Dmand AI also links Dr. Theisen to 3 hospitals, 3 group practices and clinics and 3 medical groups.
What is Dr. Sean E. Theisen's office phone number?
The practice phone on file for Dr. Theisen is (920) 738-2000.
What is Dr. Sean E. Theisen's medical license number?
Dr. Theisen holds Michigan license 4301067468.
Which hospitals is Dr. Sean E. Theisen affiliated with?
Dr. Theisen practices at Ascension NE Wisconsin - St. Elizabeth Hospital in Appleton, Wisconsin. Dr. Theisen is also affiliated with ThedaCare Regional Medical Center-Appleton. Dmand AI links Dr. Theisen to 3 more hospitals.
What medical group is Dr. Sean E. Theisen part of?
Dr. Theisen is linked to Radiology Associates of the Fox Valley. Dmand AI links Dr. Theisen to 3 more medical groups.
Does Dr. Sean E. Theisen accept Medicare?
Yes. CMS data shows Dr. Theisen billed Medicare for 2,254 services in 2024, and Dr. Theisen accepts Medicare assignment.
How many Medicare patients does Dr. Sean E. Theisen see?
CMS counts 1,724 Medicare patients who saw Dr. Theisen in 2024, with an average age of 73.
What services does Dr. Sean E. Theisen bill to Medicare?
In 2024, Dr. Theisen's most billed Medicare services were radiation oncology (77067), radiation oncology (77063) and diagnostic imaging (71045).
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Where did Dr. Sean E. Theisen go to medical school?
Dr. Theisen graduated from Northwestern University Feinberg Medical School in 1996.
Has Dr. Sean E. Theisen received payments from drug or device companies?
CMS Open Payments shows $27 in general payments to Dr. Theisen from 2 companies from 2016 to 2021. The largest total came from Guerbet LLC.
How long has Dr. Sean E. Theisen been practicing?
Dr. Theisen graduated from medical school in 1996, 30 years ago.
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