Christopher F. Mildenberg, MD
Internal Medicine Physician · Sturgeon Bay, WI
Christopher F. Mildenberg, MD is an internal medicine physician with a practice address in Sturgeon Bay, Wisconsin, and NPI 1154409175, issued on Nov 1, 2006. Check the license (Wisconsin 1154409175, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Christopher F. Mildenberg
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 1154409175 WI
49841 WI
Self-reported in NPPES; status is on the state search - Practice location
- 30 N 18TH Ave Ste 4B, Sturgeon Bay, WI 54235
- Phone
- (920) 818-1001
- Enumerated
- Nov 1, 2006
- Record last updated
- Aug 28, 2025
- Fax
- (833) 438-1838
- Medicare enrollment
- Enrolled (PECOS I20061212000188); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2001
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Verify Christopher F. Mildenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 1154409175Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% more Medicare Part D claims than the average internal medicine physician in 2024
5,463 Medicare Part D claims for 419 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 40 claims were for opioids.
Most prescribed
- Atorvastatin Calcium335 claims
- Amlodipine Besylate302 claims
- Losartan Potassium216 claims
- Levothyroxine Sodium196 claims
- Furosemide171 claims
- Metformin Hcl139 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Independent Physicians OF Wisconsin LLCSturgeon Bay, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher F. Mildenberg among 2,078 internal medicine physician records in Wisconsin
Christopher F. Mildenberg, MD is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 46% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2001 · median 2002 among the 1,098 with a school on file
- Record last updated2025 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 internal medicine physician records list a practice address in Sturgeon Bay
They are 10 of the 350 NPPES records with a practice address in Sturgeon Bay, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Sturgeon Bay → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kumar Akashdeep, M.D.Sturgeon Bay, WI 542351720210008
- Keith Anclam, D.O.Sturgeon Bay, WI 542351487662037
- Paul Board, M.D.Sturgeon Bay, WI 542351891725420
- David Conger, MDSturgeon Bay, WI 542351477562510
- James Heise, M.D.Sturgeon Bay, WI 542351316934060
- Richard Hogan, M.D.Sturgeon Bay, WI 542351710911144
- Kelton Reitz, D.O.Sturgeon Bay, WI 542351164432027
- Henry Saperstein, M.D.Sturgeon Bay, WI 542351033129911
Common questions
What is Christopher F. Mildenberg, MD's NPI number?
Christopher F. Mildenberg, MD's National Provider Identifier (NPI) is 1154409175, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christopher F. Mildenberg, MD located?
The NPPES record lists a practice address at 30 N 18TH Ave Ste 4B, Sturgeon Bay, WI, 54235. Phone: (920) 818-1001. Providers update this record themselves, so call before visiting.
How can I verify Christopher F. Mildenberg, MD's license?
NPPES lists Wisconsin license number 1154409175, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher F. Mildenberg, MD prescribe under Medicare Part D?
In 2024, Christopher F. Mildenberg, MD had 5,463 Medicare Part D claims for 419 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.