William Patrick Klein, MD
Family Medicine Physician · La Crosse, WI
William Patrick Klein, MD is a family medicine physician with a practice address in La Crosse, Wisconsin, and NPI 1922628916, issued on Apr 20, 2020. Check the license (Wisconsin 76709, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William Patrick Klein
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 76709 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1836 South Ave, La Crosse, WI 54601
- Phone
- (608) 782-7300
- Enumerated
- Apr 20, 2020
- Record last updated
- Jun 2, 2023
- Medicare enrollment
- Enrolled (PECOS I20230613003344); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 1836 South Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mateen Abidi, M.DCardiovascular Disease Physician1730333980
Verify William Patrick Klein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 76709Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average family medicine physician in 2024
2,045 Medicare Part D claims for 236 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 44 claims were for opioids.
Most prescribed
- Atorvastatin Calcium172 claims
- Lisinopril124 claims
- Amlodipine Besylate76 claims
- Omeprazole66 claims
- Tamsulosin Hcl62 claims
- Metoprolol Tartrate61 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
- Gundersen Lutheran Medical Center IncLa Crosse, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Patrick Klein among 3,765 family medicine physician records in Wisconsin
William Patrick Klein, MD 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 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 9% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2020 · 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).
115 family medicine physician records list a practice address in La Crosse
They are 115 of the 3,735 NPPES records with a practice address in La Crosse, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in La Crosse → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Karl Borge, MDLa Crosse, WI 546011831193507
- Robyn Borge, MDLa Crosse, WI 546011528062296
- Craig Carr, MDLa Crosse, WI 546011780689190
- Karen Cowan, MDLa Crosse, WI 546011417951856
- Scott Escher, MDLa Crosse, WI 546011700881877
- Thomas Frisby, MDLa Crosse, WI 546011417952359
- Erik Gundersen, MDLa Crosse, WI 546011770588360
- Cheng Her, MDLa Crosse, WI 546011356346803
Common questions
What is William Patrick Klein, MD's NPI number?
William Patrick Klein, MD's National Provider Identifier (NPI) is 1922628916, issued on Apr 20, 2020. An NPI identifies a provider in billing; it is not a license.
Where is William Patrick Klein, MD located?
The NPPES record lists a practice address at 1836 South Ave, La Crosse, WI, 54601. Phone: (608) 782-7300. Providers update this record themselves, so call before visiting.
How can I verify William Patrick Klein, MD's license?
NPPES lists Wisconsin license number 76709, 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 William Patrick Klein, MD prescribe under Medicare Part D?
In 2024, William Patrick Klein, MD had 2,045 Medicare Part D claims for 236 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.