Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CHRISTOPHER J LARSON PA
NPI 1871599779
Physician Assistant - Medical in La Crosse, WI

Q: What is Christopher Larson's NPI number?

The NPI number for Christopher Larson is 1871599779. It was assigned to this individual provider in the NPPES registry on June 24, 2005.

Q: What is Christopher Larson's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Active since June 24, 2005PECOS Enrolled

1836 SOUTH AVE, LA CROSSE, WI 54601(608) 782-7300(608) 775-4467 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Christopher J Larson Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHRISTOPHER J LARSON PA (NPI 1871599779) is an individual medical provider in La Crosse, Wisconsin, licensed in Wisconsin (1434) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1871599779

Entity TypeIndividualMale

Primary Taxonomy363AM0700X

Provider Legal NameCHRISTOPHER J LARSONCredential: PA

Location Address1836 SOUTH AVELa Crosse, WI 54601-5429

Mailing Address1836 South AveLa Crosse, WI 54601-5429 · (608) 782-7300 · Fax (608) 775-4467

Phone(608) 782-7300

Fax(608) 775-4467

Sole ProprietorNo

Enumeration DateJune 24, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1871599779 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363AM0700X

License✔ Licensed in WI · 1434

1836 SOUTH AVE, La Crosse, WI 54601

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Other Identifiers 1

Medicaid41955400WI

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Christopher J Larson Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

19 services19 patients

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JEFFREY BRIAN TROHKIMOINEN M.D.

Anesthesiology

1836 SOUTH AVE, GUNDERSEN CLINIC, LTD.
LA CROSSE, WI 54601

La Crosse County (608) 775-2031

JESSICA E THESING CRNA

Nurse Anesthetist, Certified Registered