Tucker Henry Trefz, PA
Physician Assistant · Onalaska, WI
Tucker Henry Trefz, PA is a physician assistant with a practice address in Onalaska, Wisconsin, and NPI 1710616933, issued on Jun 6, 2022. Check the license (Wisconsin 7625, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tucker Henry Trefz
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 7625 WI
Self-reported in NPPES; status is on the state search - Practice location
- 191 Theater Road, Onalaska, WI 54650
- Phone
- (608) 392-5000
- Enumerated
- Jun 6, 2022
- Record last updated
- Oct 31, 2023
- Medicare enrollment
- Enrolled (PECOS I20231101001798); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,475 in Wisconsin → Look up another NPI →
Also registered at 191 Theater Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gerlyn Brasic, MDInternal Medicine Physician1033104427
- Heather Christensen, MDFamily Medicine Physician1508846601
- Nancy Erickson, MDFamily Medicine Physician1457341992
- Anne Michaelson, PAPhysician Assistant1881271971
- Paul Molling, DOFamily Medicine Physician1487642674
- Jenna Mullins, MDFamily Medicine Physician1326798992
Verify Tucker Henry Trefz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 7625Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average physician assistant in 2024
757 Medicare Part D claims for 272 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone81 claims
- Doxycycline Monohydrate27 claims
- Levothyroxine Sodium26 claims
- Lisinopril26 claims
- Atorvastatin Calcium25 claims
- Torsemide23 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
- Mayo Clinic Health System-Southwest Wisconsin Region IncPrairie Du Chien, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tucker Henry Trefz among 3,475 physician assistant records in Wisconsin
Tucker Henry Trefz, PA is one of 3,475 physician assistant records with a practice address in Wisconsin. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 80% of them.
- NPI issued2022 · 80% of these records are older, 14% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2023 · median 2016 among the 2,491 with a school on file
- Record last updated2023 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 physician assistant records list a practice address in Onalaska
They are 8 of the 568 NPPES records with a practice address in Onalaska, and 3,475 physician assistant records in Wisconsin.
All 3,475 in Wisconsin → Every provider in Onalaska → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Katie Beahm, PA-COnalaska, WI 546501083049985
- Mary Duh, PA-COnalaska, WI 546501285860833
- Ivy Erickson, PA-COnalaska, WI 546501205184025
- Danielle Fitterer, PA-COnalaska, WI 546501710291091
- Marcy Lisota, PACOnalaska, WI 546501629051347
- Anne Michaelson, PAOnalaska, WI 546501881271971
- Elizabeth Twite, PA-COnalaska, WI 546501003284431
- Gloria Degenhardt, PANorwalk, WI 546481114914744
Common questions
What is Tucker Henry Trefz, PA's NPI number?
Tucker Henry Trefz, PA's National Provider Identifier (NPI) is 1710616933, issued on Jun 6, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Tucker Henry Trefz, PA located?
The NPPES record lists a practice address at 191 Theater Road, Onalaska, WI, 54650. Phone: (608) 392-5000. Providers update this record themselves, so call before visiting.
How can I verify Tucker Henry Trefz, PA's license?
NPPES lists Wisconsin license number 7625, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Tucker Henry Trefz, PA prescribe under Medicare Part D?
In 2024, Tucker Henry Trefz, PA had 757 Medicare Part D claims for 272 beneficiaries; the average among physician assistant prescribers was 830. 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.