William K. Dernbach, MD
Internal Medicine Physician · Wausau, WI
William K. Dernbach, MD is an internal medicine physician with a practice address in Wausau, Wisconsin, and NPI 1255431631, issued on Sep 25, 2006. Check the license (Wisconsin 18092, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William K. Dernbach
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 18092 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2727 Plaza Drive, Wausau, WI 54401
- Phone
- (715) 847-3271
- Enumerated
- Sep 25, 2006
- Record last updated
- Sep 11, 2025
- Medicaid ID
- 31131500 WI
- Entity
- Type 1 · individual
Also registered at 2727 Plaza Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William K. Dernbach in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 18092Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26 internal medicine physician records list a practice address in Wausau
They are 26 of the 1,958 NPPES records with a practice address in Wausau, and 2,078 internal medicine physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 26 in Wausau → All 2,078 in Wisconsin → Every provider in Wausau →
Other internal medicine physician records in Wisconsin
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- Mesfin Abdissa, MDMilwaukee, WI1376579417
- Anas Abed, MDMadison, WI1659002566
- Margaret Abel, MDRhinelander, WI1477590487
- Mesfin Abera, M.D.Beaver Dam, WI1972852390
- Vidthya Abraham, M.D.Madison, WI1861836058
- Ismael Abu Limon, MDGreenfield, WI1467945543
- Amjed Abu Muhanna, MDMarinette, WI1861514135
- Satish Achanti, MDAppleton, WI1982711198
Common questions
What is William K. Dernbach, MD's NPI number?
William K. Dernbach, MD's National Provider Identifier (NPI) is 1255431631, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William K. Dernbach, MD located?
The NPPES record lists a practice address at 2727 Plaza Drive, Wausau, WI, 54401. Phone: (715) 847-3271. Providers update this record themselves, so call before visiting.
How can I verify William K. Dernbach, MD's license?
NPPES lists Wisconsin license number 18092, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.