Aaron Karo
Surgical Physician Assistant · La Crosse, WI
Aaron Karo is a surgical physician assistant with a practice address in La Crosse, Wisconsin, and NPI 1669087763, issued on Sep 15, 2020. Check the license (Wisconsin 7151, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Aaron Karo
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- License number
- 7151 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
- Sep 15, 2020
- Record last updated
- Dec 22, 2022
- Medicare enrollment
- Enrolled (PECOS I20230110001548); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 287 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.
- Frank Aberger, MDGastroenterology Physician1396748711
- Bradley Abicht, DPMPodiatrist1962632166
- Carter Abicht, DOAnesthesiology Physician1932736642
- Grace AbichtCertified Registered Nurse Anesthetist1003651555
- Paul Abicht, CRNACertified Registered Nurse Anesthetist1528061843
- Mateen Abidi, M.DCardiovascular Disease Physician1730333980
Verify Aaron Karo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 7151Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% more Medicare Part D claims than the average surgical physician assistant in 2024
591 Medicare Part D claims for 179 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. 256 claims were for opioids.
Most prescribed
- Tramadol Hcl127 claims
- Oxycodone Hcl119 claims
- Cefadroxil90 claims
- Ondansetron Hcl76 claims
- Celecoxib74 claims
- Prednisone15 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 2 group practices
- Gundersen Clinic LtdOnalaska, WI
- Gundersen Lutheran Medical Center IncWinona, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aaron Karo among 287 surgical physician assistant records in Wisconsin
Aaron Karo is one of 287 surgical physician assistant records with a practice address in Wisconsin. 80% 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 79% of them.
- NPI issued2020 · 79% of these records are older, 17% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2022 · median 2016 among the 213 with a school on file
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Physician Assistant providers in Wisconsin
There are 287 surgical physician assistant records in Wisconsin.
All 287 in Wisconsin → Every provider in La Crosse → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- Joshua Dewey, PA-CLa Crosse, WI 546011346409968
- Eric Garland, PALa Crosse, WI 546011073518783
- Stacey Glaunert, PALa Crosse, WI 546011801891510
- Charles Goff, PA-CLa Crosse, WI 546011982609608
- Shelly Hatlestad, PALa Crosse, WI 546011386649929
- William Irons, PALa Crosse, WI 546011740286293
- John Kallies, PALa Crosse, WI 546011285630699
- Marcus Roman, PA-CLa Crosse, WI 546011609841378
Common questions
What is Aaron Karo's NPI number?
Aaron Karo's National Provider Identifier (NPI) is 1669087763, issued on Sep 15, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Aaron Karo 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 Aaron Karo's license?
NPPES lists Wisconsin license number 7151, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Aaron Karo prescribe under Medicare Part D?
In 2024, Aaron Karo had 591 Medicare Part D claims for 179 beneficiaries; the average among surgical physician assistant prescribers was 304. 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.