Joseph E. Guenther, M.D.
Family Medicine Physician · Keshena, WI
Joseph E. Guenther, M.D. is a family medicine physician with a practice address in Keshena, Wisconsin, and NPI 1720028343, issued on Jun 8, 2006. Check the license (Wisconsin 41375-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Joseph E. Guenther
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 41375-020 WI
Self-reported in NPPES; status is on the state search - Practice location
- W3275 Wolf River Road, Keshena, WI 54135
- Phone
- (715) 799-3361
- Enumerated
- Jun 8, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (715) 799-3099
- Medicaid ID
- 33347900 WI
- Medicare enrollment
- Enrolled (PECOS I20101104001517); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at W3275 Wolf River Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- John Culhane, M.D.Family Medicine Physician1780624395
Verify Joseph E. Guenther in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 41375-020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average family medicine physician in 2024
1,644 Medicare Part D claims for 134 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Gabapentin94 claims
- Lisinopril91 claims
- Hydrochlorothiazide79 claims
- Albuterol Sulfate Hfa68 claims
- Pantoprazole Sodium61 claims
- Amlodipine Besylate51 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.
Industry payments in 2024: $100.00
1 payment: food and beverage; the largest payer was Tempus AI, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Menominee Indian Tribe OF WisconsinKeshena, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph E. Guenther among 3,765 family medicine physician records in Wisconsin
Joseph E. Guenther, M.D. is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1998 · median 2007 among the 2,347 with a school on file
- Record last updated2023 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 family medicine physician records list a practice address in Keshena
They are 10 of the 58 NPPES records with a practice address in Keshena, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Keshena → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Mary Callis, MDKeshena, WI 541351730334020
- John Culhane, M.D.Keshena, WI 541351780624395
- Shannon Daun, MDKeshena, WI 541351487636072
- Beth Gillis, MDKeshena, WI 541351245262351
- Peter Keenan, M.D.Keshena, WI 541351043250665
- Heather Nennig, MDKeshena, WI 541351174902209
- Estelle Ostgard, MDKeshena, WI 541351518213115
- Amy Slagle, M.D.Keshena, WI 541351225078835
Common questions
What is Joseph E. Guenther, M.D.'s NPI number?
Joseph E. Guenther, M.D.'s National Provider Identifier (NPI) is 1720028343, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph E. Guenther, M.D. located?
The NPPES record lists a practice address at W3275 Wolf River Road, Keshena, WI, 54135. Phone: (715) 799-3361. Providers update this record themselves, so call before visiting.
How can I verify Joseph E. Guenther, M.D.'s license?
NPPES lists Wisconsin license number 41375-020, 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 Joseph E. Guenther, M.D. prescribe under Medicare Part D?
In 2024, Joseph E. Guenther, M.D. had 1,644 Medicare Part D claims for 134 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.