Theresa Siegert, M.D.
Surgery of the Hand (Surgery) Physician · Mequon, WI
Theresa Siegert, M.D. is a surgery of the hand (surgery) physician with a practice address in Mequon, Wisconsin, and NPI 1295706695, issued on Feb 1, 2006. Check the license (Wisconsin 25432, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Theresa Siegert
- Credential
- M.D.
- Primary taxonomy
- Surgery of the Hand (Surgery) Physician 2086S0105X
- License number
- 25432 WI
Self-reported in NPPES; status is on the state search - Practice location
- 12300 N Port Washington RD, Mequon, WI 53092
- Phone
- (262) 243-5400
- Enumerated
- Feb 1, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (262) 243-6005
- Medicaid ID
- 31544100 WI
- Entity
- Type 1 · individual
Also registered at 12300 N Port Washington RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Siegert, M.D.Orthopaedic Hand Surgery Physician1013989185
Verify Theresa Siegert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 25432Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Surgery of the Hand (Surgery) Physician providers in Wisconsin
There are 8 surgery of the hand (surgery) physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other surgery of the hand (surgery) physician records in Wisconsin
- John Berschback, M.D.Altoona, WI1720244288
- Matthew Boardman, D.O.Madison, WI1972738615
- Lewis Chamoy, MDMilwaukee, WI1891796751
- David Dennison, M.D.Eau Claire, WI1538139639
- Kun-Tai Hsu, MDWauwatosa, WI1043504772
- Ron Stark, M.D.Milwaukee, WI1780655928
- Morgan Weber, M.D.Madison, WI1952835068
Common questions
What is Theresa Siegert, M.D.'s NPI number?
Theresa Siegert, M.D.'s National Provider Identifier (NPI) is 1295706695, issued on Feb 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Theresa Siegert, M.D. located?
The NPPES record lists a practice address at 12300 N Port Washington RD, Mequon, WI, 53092. Phone: (262) 243-5400. Providers update this record themselves, so call before visiting.
How can I verify Theresa Siegert, M.D.'s license?
NPPES lists Wisconsin license number 25432, 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.