Dr. Holger Wienzek, MBA, MD
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2025
- 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. Wienzek'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. Holger Wienzek is an anesthesiologist in Milwaukee, Wisconsin
Dr. Wienzek practices at Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health.
Dr. Wienzek's NPI, 1902785413, was assigned on August 28, 2025. Dr. Wienzek holds Wisconsin license 85916-875.
- NPI
- 1902785413NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416451547
- NPI enumeration date
- August 28, 2025
- 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
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Holger Wienzek practices at Froedtert Hospital in Milwaukee, Wisconsin
Dr. Wienzek'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. Holger Wienzek is affiliated with 1 site of care and 1 medical group
Dr. Wienzek'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. Holger Wienzek's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wienzek 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. Holger Wienzek is one of 1,001 anesthesiologists in Wisconsin
Anesthesiology is Dr. Wienzek's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Wienzek is licensed in Wisconsin.
Specialties and state licenses
- Anesthesiology, WisconsinPrimary
Anesthesiologists near Dr. Wienzek
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. Holger Wienzek's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Wienzek's median patient age at 63, with 54% women.
Dr. Wienzek'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
- Women54%
- Men45%
Source: Dmand AI Patient Panel Data
How Dr. Holger Wienzek takes part in Medicare
Dr. Wienzek 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)
Sources for Dr. Holger Wienzek'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Holger Wienzek
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. Holger Wienzek's NPI number?
Dr. Holger Wienzek's NPI number is 1902785413. It was assigned on August 28, 2025, and it is active in the NPI Registry.
What kind of doctor is Dr. Holger Wienzek?
Dr. Holger Wienzek is an anesthesiologist in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Holger Wienzek practice?
Dr. Wienzek practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. Dr. Wienzek's primary practice is Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health.
What is Dr. Holger Wienzek's office phone number?
The practice phone on file for Dr. Wienzek is (414) 805-3000.
What is Dr. Holger Wienzek's medical license number?
Dr. Wienzek holds Wisconsin license 85916-875.
Which hospitals is Dr. Holger Wienzek affiliated with?
Dr. Wienzek practices at Froedtert Hospital in Milwaukee, Wisconsin.
What medical group is Dr. Holger Wienzek part of?
Dr. Wienzek is linked to Froedtert & the Medical College of Wisconsin Community Physicians.
Does Dr. Holger Wienzek accept Medicare?
Yes. CMS lists Dr. Wienzek as accepting Medicare assignment.
How long has Dr. Holger Wienzek been practicing?
Dr. Wienzek graduated from medical school in 2001, 25 years ago.
Selling to anesthesiology practices?
See anesthesiologists in Wisconsin by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card