Kari L. Jefferson, PA C
Physician Assistant · La Crosse, WI
Kari L. Jefferson, PA C is a physician assistant with a practice address in La Crosse, Wisconsin, and NPI 1760457451, issued on Feb 17, 2006. Check the license (Wisconsin 2557, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kari L. Jefferson
- Credential
- PA C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 2557 WI
085003483 IL
Self-reported in NPPES; status is on the state search - Practice location
- 800 West Avenue South, La Crosse, WI 54601
- Phone
- (608) 392-9876
- Enumerated
- Feb 17, 2006
- Record last updated
- Aug 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (608) 392-3955
- Medicare enrollment
- Enrolled (PECOS I20100630000026); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,475 in Wisconsin → Look up another NPI →
Also registered at 800 West Avenue South
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emma Banwart, FNPNurse Practitioner1306036009
- Linda Butterworth, GNPGerontology Nurse Practitioner1942281670
- Gregory Cramer, MDGastroenterology Physician1104807833
- Myung Hahn, MDCritical Care Medicine (Internal Medicine) Physician1023091741
- Geoffrey Kloster, MDFamily Medicine Physician1659352425
Verify Kari L. Jefferson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 2557Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average physician assistant in 2024
266 Medicare Part D claims for 130 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 108 claims were for opioids.
Most prescribed
- Oxycodone Hcl57 claims
- Tramadol Hcl46 claims
- Celecoxib38 claims
- Diclofenac Sodium26 claims
- Meloxicam20 claims
- Amoxicillin11 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 IncOnalaska, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kari L. Jefferson among 3,475 physician assistant records in Wisconsin
Kari L. Jefferson, PA C 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 76% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1999 · median 2016 among the 2,491 with a school on file
- Record last updated2021 · 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).
56 physician assistant records list a practice address in La Crosse
They are 56 of the 3,735 NPPES records with a practice address in La Crosse, and 3,475 physician assistant records in Wisconsin.
All 3,475 in Wisconsin → Every provider in La Crosse → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Karen Graham-Burnet, P.A.La Crosse, WI 546011972557841
- Anne Hletko, PA-CLa Crosse, WI 546011124079413
- Kaye Johnston, PALa Crosse, WI 546011700882149
- Rebecca Kath, PALa Crosse, WI 546011427054832
- Parker Kelley, PALa Crosse, WI 546011447287271
- Carol Kratz, PA-CLa Crosse, WI 546011124024427
- Douglas Miller, PALa Crosse, WI 546011417952896
- Raunaque Oshan, PA-CLa Crosse, WI 546011770576969
Common questions
What is Kari L. Jefferson, PA C's NPI number?
Kari L. Jefferson, PA C's National Provider Identifier (NPI) is 1760457451, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kari L. Jefferson, PA C located?
The NPPES record lists a practice address at 800 West Avenue South, La Crosse, WI, 54601. Phone: (608) 392-9876. Providers update this record themselves, so call before visiting.
How can I verify Kari L. Jefferson, PA C's license?
NPPES lists Wisconsin license number 2557, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Kari L. Jefferson, PA C prescribe under Medicare Part D?
In 2024, Kari L. Jefferson, PA C had 266 Medicare Part D claims for 130 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.