Gary J. Janssen, MD
Family Medicine Physician · Greenwood, WI
Gary J. Janssen, MD is a family medicine physician with a practice address in Greenwood, Wisconsin, and NPI 1063527539, issued on Aug 21, 2006. Check the license (Wisconsin 22408, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gary J. Janssen
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 22408 WI
Self-reported in NPPES; status is on the state search - Practice location
- 102 W Cannery St, Greenwood, WI 54437
- Phone
- (715) 267-6600
- Enumerated
- Aug 21, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 30264300 WI
- Entity
- Type 1 · individual
Also registered at 102 W Cannery St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Scott Brown, PAPhysician Assistant1437264900
Verify Gary J. Janssen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 22408Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2 family medicine physician records list a practice address in Greenwood
They are 2 of the 11 NPPES records with a practice address in Greenwood, and 3,765 family medicine physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2 in Greenwood → All 3,765 in Wisconsin → Every provider in Greenwood →
Other family medicine physician records in Wisconsin
- Ashraf AbbasAppleton, WI1558723775
- Ghudran Abdulal, MDNew Berlin, WI1083622666
- Yusuf Abdullah, DOSun Prairie, WI1437788478
- Vanessa Abejuela-Matt, D.O.Mount Pleasant, WI1558687749
- Emily Abeyta, MDWaukesha, WI1386905107
- Jeanette Abraham, MDWeston, WI1205895810
- Sarada Abraham, M.D.Oconomowoc, WI1962851972
- Kirsten Abramson, MDMadison, WI1417909979
- Alexandra Adams, MD PHDMadison, WI1184689291
- David AdamsMadison, WI1992986897
Common questions
What is Gary J. Janssen, MD's NPI number?
Gary J. Janssen, MD's National Provider Identifier (NPI) is 1063527539, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary J. Janssen, MD located?
The NPPES record lists a practice address at 102 W Cannery St, Greenwood, WI, 54437. Phone: (715) 267-6600. Providers update this record themselves, so call before visiting.
How can I verify Gary J. Janssen, MD's license?
NPPES lists Wisconsin license number 22408, 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.