Dr. Jan Fraessdorf, MD, PhD
- Medicare services, 2024
- 44
- Medicare patients, 2024
- 154
- Hospital affiliations
- 1
- Industry payments
- $47
- Medical group
- 1
- Practice address
- 9200 W Wisconsin Ave, Milwaukee, WI 53226
- Practice phone
- Call (414) 805-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Fraessdorf's professional email, personal email and mobile number
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Dr. Jan Fraessdorf is an anesthesiologist in Milwaukee, Wisconsin
Dr. Fraessdorf practices at Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health.
Dr. Fraessdorf's NPI, 1629836432, was assigned on March 7, 2024. Dr. Fraessdorf holds Wisconsin license 82974-875.
- NPI
- 1629836432NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375981418
- NPI enumeration date
- March 7, 2024
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (414) 805-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jan Fraessdorf practices at Froedtert Hospital in Milwaukee, Wisconsin
Dr. Fraessdorf's primary practice is Froedtert Hospital, at 9200 W Wisconsin Ave, Milwaukee, WI 53226 in Milwaukee County. The practice phone is (414) 805-3000.
- Froedtert Hospital9200 W Wisconsin Ave, Milwaukee, WI 53226 · Milwaukee CountyPhone(414) 805-3000
Source: Dmand AI Affiliation Data
Dr. Jan Fraessdorf is affiliated with 1 site of care and 1 medical group
Dr. Fraessdorf's primary practice is Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health. The medical group on file is Froedtert & the Medical College of Wisconsin Community Physicians.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jan Fraessdorf's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fraessdorf practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Froedtert Hospital | 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 Froedtert ThedaCare Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jan Fraessdorf is one of 1,001 anesthesiologists in Wisconsin
Anesthesiology is Dr. Fraessdorf's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Fraessdorf is licensed in Wisconsin.
Specialties and state licenses
- Anesthesiology, WisconsinPrimary
Anesthesiologists near Dr. Fraessdorf
Counts of anesthesiologists 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. Jan Fraessdorf billed Medicare for 44 services in 2024
CMS data shows 44 Medicare services from Dr. Fraessdorf across 3 procedure codes in 2024, for 154 Medicare patients. Medicare paid $4,626 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Fraessdorf's Medicare services by type, 2024
- Anesthesia23
- Surgery21
Dr. Fraessdorf compared with the Wisconsin median for anesthesiologists, 2024
- Dr. Fraessdorf
- Wisconsin median
- Medicare services
- 44vs 488% below
- Medicare patients
- 154vs 11929% above
Medians across 995 anesthesiologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Fraessdorf'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. Fraessdorf?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fraessdorf and other anesthesiologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jan Fraessdorf treated 154 Medicare patients in 2024, average age 71
CMS counts 154 Medicare patients who saw Dr. Fraessdorf in 2024. The largest group is 65 to 74, with 64 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.86, 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. Fraessdorf's median patient age at 66, with 49% women.
Dr. Fraessdorf's Medicare patients by age, 2024
Dr. Fraessdorf's Medicare patients by sex, 2024
- Women7045%
- Men8455%
Chronic conditions among Dr. Fraessdorf's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Arthritis45%
- Ischemic heart disease42%
- Chronic kidney disease32%
- Diabetes31%
- Anxiety29%
- Heart failure27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fraessdorf's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Jan Fraessdorf takes part in Medicare
Dr. Fraessdorf 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)
For MedTech and pharma teams
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Dr. Jan Fraessdorf received $47 in industry payments in 2025
CMS Open Payments shows 2 general payments to Dr. Fraessdorf from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Pacira Pharmaceuticals Incorporated paid the most, $25.
Companies that paid Dr. Fraessdorf the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jan Fraessdorf'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) |
| 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. Jan Fraessdorf
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. Jan Fraessdorf's NPI number?
Dr. Jan Fraessdorf's NPI number is 1629836432. It was assigned on March 7, 2024, and it is active in the NPI Registry.
What kind of doctor is Dr. Jan Fraessdorf?
Dr. Jan Fraessdorf is an anesthesiologist in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Jan Fraessdorf practice?
Dr. Fraessdorf practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. Dr. Fraessdorf's primary practice is Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health.
What is Dr. Jan Fraessdorf's office phone number?
The practice phone on file for Dr. Fraessdorf is (414) 805-3000.
What is Dr. Jan Fraessdorf's medical license number?
Dr. Fraessdorf holds Wisconsin license 82974-875.
Which hospitals is Dr. Jan Fraessdorf affiliated with?
Dr. Fraessdorf practices at Froedtert Hospital in Milwaukee, Wisconsin.
What medical group is Dr. Jan Fraessdorf part of?
Dr. Fraessdorf is linked to Froedtert & the Medical College of Wisconsin Community Physicians.
Does Dr. Jan Fraessdorf accept Medicare?
Yes. CMS data shows Dr. Fraessdorf billed Medicare for 44 services in 2024, and Dr. Fraessdorf accepts Medicare assignment.
How many Medicare patients does Dr. Jan Fraessdorf see?
CMS counts 154 Medicare patients who saw Dr. Fraessdorf in 2024, with an average age of 71.
What services does Dr. Jan Fraessdorf bill to Medicare?
In 2024, Dr. Fraessdorf's most billed Medicare services were surgery: heart and blood vessels (36620), anesthesia (00790) and anesthesia (00731).
Has Dr. Jan Fraessdorf received payments from drug or device companies?
CMS Open Payments shows $47 in general payments to Dr. Fraessdorf from 2 companies from 2025 to 2025. The largest total came from Pacira Pharmaceuticals Incorporated.
How long has Dr. Jan Fraessdorf been practicing?
Dr. Fraessdorf graduated from medical school in 1998, 28 years ago.
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